{"title":"Vintage Scientific Instruments And Engineering Collectibles","description":"\u003cp\u003ePreowned  Science \/ Vintage Scientific Instruments And Engineering Collectibles from an era without AI and Digital technology!\u003c\/p\u003e","products":[{"product_id":"381","title":"1920s SG Brown Earphone Hearing Audio Aid","description":"\u003ch1\u003e1920s SG Brown Earphone Hearing Audio Aid\u003c\/h1\u003e\nIf you like quirky gadgets then you will love this 1920s SG Brown Earphone Hearing Audio Aid. It measures approximately 33cm\/13\" in length, and is connected to a Bakelite, 5 amp, MK 2-pin plug. The device would have been switched on and off by turning the knob at the bottom of the wand.\u003cbr\u003e\u003cbr\u003eWe are not sure how it was actually used but they were sold as audio aids for use in, for example, churches and cinemas or for improving Radio reception. In good condition, with a few surface scuffs and scratches commensurate with age and use. There is also a slight rattle coming from the headphone. Made from a mixture of Bakelite and metal, it has not been tested.\u003cbr\u003e\u003cbr\u003eI've included an advert for the device made by the venerated headphone manufacturer SG Brown of Watford, England.\u003cbr\u003eStamped on the rear of the Black Bakelite earpiece with:\u003cbr\u003e\u003cbr\u003eSG Brown Ltd\u003cbr\u003eType F\u003cbr\u003eMade in Watford, England\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eA nice piece of history for the \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\" rel=\"noopener noreferrer\"\u003emedical devices themed collection!\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e","brand":"SG Brown","offers":[{"title":"Default Title","offer_id":31882337452076,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC02108.jpg?v=1580060628"},{"product_id":"1920s-wakefield-castrolease-automotive-grease-gun","title":"1920s Wakefield Castrolease Automotive Grease Gun","description":"\u003ch1 class=\"override-listing-title normal break-word mb-xs-2\" data-buy-box-listing-title=\"\" data-listing-id=\"680405905\"\u003e1920s Wakefield Castrolease Automotive Grease Gun \u003c\/h1\u003e\n\u003cp data-listing-id=\"680405905\"\u003eA useful, and collectible, 1920s Wakefield Castrolease Automotive Grease Gun. Measuring ~ 6 1\/4\", it is made from solid brass and smells wonderfully of old garage workshops and grease! \u003c\/p\u003e\n\u003cp data-listing-id=\"680405905\"\u003e\u003cstrong\u003eMarkings on the side\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-listing-id=\"680405905\"\u003e\u003cem\u003eThe Wakefield Castrolease Gun. Fill only with Wakefield Castrolease Grease.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-listing-id=\"680405905\"\u003e\u003cem\u003ePat No. 311571\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-listing-id=\"680405905\"\u003eThe Patent dates to 5\/06\/1928 and was filed by Wakefield \u0026amp; Co. Ltd. The patent was for a single acting suction valveless piston pump.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeight: 16cm (6 1\/4\")\u003c\/li\u003e\n\u003cli\u003eDiameter of reservoir: 2 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn pretty good vintage condition, with scuffs and surface scratches commensurate with age and use. The internals are covered in old grease. I haven’t polished the outside, as I like to keep the patina.\u003c\/p\u003e\n\u003cp\u003eBoth the top and bottom of the grease gun screw on to the main barrel to allow for ease of cleaning.\u003c\/p\u003e\n\u003cp\u003eA handy little object for those small greasing jobs! Wonderful addition to a collection of \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-tools\" target=\"_blank\" rel=\"noopener noreferrer\"\u003evintage tools.\u003c\/a\u003e\u003c\/p\u003e\n\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e","brand":"Wakefield (Castrol)","offers":[{"title":"Default Title","offer_id":35498044260501,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC08397.jpg?v=1596291239"},{"product_id":"vintage-retractable-50-foot-metal-tape-measure","title":"Vintage Retractable 50 Foot Metal Tape Measure","description":"\u003ch1\u003eVintage Retractable 50 Foot Metal Tape Measure\u003c\/h1\u003e\n\u003cp\u003eThis wonderful looking device is a Vintage Retractable 50 Foot Metal Tape Measure. Dating to the 1920s\/30s, the accents (tape pull and winder) are brass and the actual measure is made from steel (possibly chromed). It's pretty heavy!\u003c\/p\u003e\n\u003cp\u003eThe 50 foot measure is graduated in inches and feet.\u003c\/p\u003e\n\u003cp\u003eThe winder is engraved:\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eJOFA\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFt 50\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eForeign\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe outside of the measure is covered with a maroon\/red leather marked 'best leather'.\u003c\/p\u003e\n\u003cp\u003eApproximate spool diameter:- 9.4cm\u003c\/p\u003e\n\u003cp\u003eThe photos have been take with and without flash hence the differences in colour.\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures\" target=\"_blank\" rel=\"noopener noreferrer\"\u003evintage tests and measures.\u003c\/a\u003e\u003c\/p\u003e","brand":"Unknown","offers":[{"title":"Default Title","offer_id":35894978642069,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/Vintage_Retractable_50_Foot_Metal_Tape_Measure.jpg?v=1762274956"},{"product_id":"1920s-weston-electrical-instruments-red-bakelite-ammeter","title":"1920s Weston Electrical Instruments Red Bakelite Ammeter","description":"\u003ch1\u003e1920s Weston Electrical Instruments Red Bakelite Ammeter\u003c\/h1\u003e\n\u003cp\u003eThis 1920s Weston Electrical Instruments Red Bakelite Ammeter is a wonderful little device. Not only is it a test meter but it is presented in a beautiful red and black bakelite casing! Although it has the original transit case, you will want to have this beautiful instrument on display.\u003c\/p\u003e\n\u003cp\u003eThe unit has not been tested and is being sold as a collectible, for display only. It is in excellent cosmetic condition, with some dust in the meter window and superficial surface scratches commensurate with age and use. The leather transit case is blemished, scuffed and worn but is intact with no tears or breaks. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFace Markings\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e0-15 Amperes A.C \u003c\/li\u003e\n\u003cli\u003e0-3 Amperes\u003c\/li\u003e\n\u003cli\u003eModel No.528\u003c\/li\u003e\n\u003cli\u003eWeston Electrical Instrument Corp. Newark, N.J, USA\u003c\/li\u003e\n\u003cli\u003eNo. 36757\u003c\/li\u003e\n\u003cli\u003epatent numbers 1579849, 1661214, 1714065 (dating to 1925-1927)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Size Of The Ammeter\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFace Diameter: 6.3cm\u003c\/li\u003e\n\u003cli\u003eWidth: 9.7cm\u003c\/li\u003e\n\u003cli\u003eHeight: 5.4cm\u003c\/li\u003e\n\u003cli\u003eDepth: 8cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Case Dimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWHD: 11.5 x 6.6 x 9.5 cm\u003c\/p\u003e\n\u003cp\u003ePlease click on the following links for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/bakelite-plastics\" target=\"_blank\"\u003ebakelite\u003c\/a\u003e and \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures\" target=\"_blank\"\u003evintage test meters.\u003c\/a\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Weston","offers":[{"title":"Default Title","offer_id":36274219876501,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC08759_787a3d2c-f38a-4aa6-ae5e-cc4ac1e029bd.jpg?v=1600007237"},{"product_id":"vintage-pw-allen-type-a405-l-ultra-violet-uv-inspection-lampallen-type-a405-l-ultra-violet-uv-inspection-lamp","title":"Vintage PW Allen Type A405\/L Ultra Violet UV Inspection Lamp","description":"\u003ch1 class=\"override-listing-title normal break-word mb-xs-2\" data-buy-box-listing-title=\"\" data-listing-id=\"682578149\"\u003eVintage PW Allen Type A405\/L Ultra Violet UV Inspection Lamp\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThis is a very nice Vintage PW Allen Type A405\/L Ultra Violet UV Inspection Lamp. It was made by PW Allen \u0026amp; Co, of 253, Liverpool Road, London, N1. It would have been used in industry as an inspection lamp for Non Destructive Testing (NDT).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIn good cosmetic and working condition, the lamp comes with its original Black leather transit case lined with soft blue fabric. The lamp has been electrically tested and has passed the UK Portable Appliance Test (P.A.T). Both the case and lamp have some superficial scuffs commensurate with age and use.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePlease note that this kit is over 20 years old and may not meet current HS\u0026amp;E legislation. It should be tested by a professional if you intend to use it in a working environment.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSummary\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e* PW Allen Type A405\/L UV Inspection Lamp\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Made by PW Allen \u0026amp; Co. (Visual Inspection Engineers whom are now part of Allen- Vanguard)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* 220\/240 Volts\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* For AC Main Only\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Uses Philips Tubes Part No. TL6W\/08 or F6T5\/BLB (Philips 9\" 6w Blacklight Blue tube used for night clubs, checking bank notes and many other applications).\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Approximate Case Size excluding strap (WHD Width, Height, Depth): 30cm x 27cm x 8.4cm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/tests-measures\" target=\"_blank\"\u003eVintage testing equipment.\u003c\/a\u003e\u003c\/p\u003e","brand":"PW Allen","offers":[{"title":"Default Title","offer_id":36313865519253,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC01983_109bcef9-ca93-4305-a95c-231f618c1b5c.jpg?v=1621948541"},{"product_id":"1900-electric-bells-how-to-make-and-fit-them-by-paul-hasluck","title":"1900 Electric Bells How to Make and Fit Them By Paul Hasluck","description":"\u003ch1\u003e1900 Electric Bells How to Make and Fit Them By Paul Hasluck\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eOriginal 1900s Pocket Reference book entitled:-\"Electric Bells, How to Make and Fit Them, Including, Batteries, Indicators Pushes, And Switches.\" Edited by Paul. N. Hasluck. From the \"Work\" Handbook series published by Cassell \u0026amp; Company. It was originally priced at 1 shilling (as seen on the book cover).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIt contains chapters on, e.g; electric current, wiring, conductors, batteries, wiring for burglar alarms, construction of an electric bell, switches and indicators. There are some wonderful black and white schematics illustrating the book.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e-\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e* Used Hardcover: 160 pages, 8 Chapters, 162 figures. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Author: Paul N Hasluck\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Publisher: Cassell \u0026amp; Company Limited, Ludgate Hill, London\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Book Condition: Fair (No missing pages or markings on the inside except on one page where someone has coloured in an illustration on staples) \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Published in 1900. First Edition\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Stained, Discoloured and Scuffed Blue-Grey cloth hardcover with red and blue design and lettering. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Spine ends and corners have wear and bumps\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Light foxing throughout, \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Interior has yellowed with age \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Approximate size: Crown Octavo (8vo) Height: 17.7cm x Width 10.5cm x Depth 1.1cm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eAmusingly, the publisher's note states that:-\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e''This treatise on Electric Bells is issued in the confident belief that it's not only thoroughly practical and reliable, but is so simply worded that even inexperienced readers can understand it.\"\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eI hope that the publisher is correct!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eA nice old pocket reference book for the book collector and Engineer.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/vintage-and-collectible-books\" target=\"_blank\" rel=\"noopener noreferrer\"\u003evintage and collectible books.\u003c\/a\u003e\u003c\/p\u003e\n\u003cstrong\u003e\u003c\/strong\u003e","brand":"Paul Hasluck","offers":[{"title":"Default Title","offer_id":36542092935317,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC02915_8af131c8-b9a9-4225-9064-b4bd8a28be5c.jpg?v=1601022628"},{"product_id":"copy-of-dawe-sound-level-meter-type-1405d-serial-number-r36067","title":"Dawe Sound Level Meter Type 1405D. Serial Number R36067","description":"\u003ch1 class=\"override-listing-title normal break-word mb-xs-2\" data-buy-box-listing-title=\"\" data-listing-id=\"698512860\"\u003eDawe Sound Level Meter Type 1405D. Serial Number R36067\u003c\/h1\u003e\n\u003cp\u003eThis interesting looking device is a Dawe Sound Level Meter Type 1405 D. Serial Number R36067 (RS Components Stock No. 610-988). Vintage Scientific Instrument\/Gadget in very good cosmetic and working condition.\u003c\/p\u003e\n\u003cp\u003eThe range is from 40 to 120 dB with fast in and slow out.\u003c\/p\u003e\n\u003cp\u003eSee it working in the following You tube video: \u003ca href=\"https:\/\/youtu.be\/uTNqFwg9DIY\"\u003ehttps:\/\/youtu.be\/uTNqFwg9DIY\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eComes with:-\u003c\/p\u003e\n\u003cp\u003e1. 1970 Electronics Short Form catalogue\u003cbr\u003e2. Dawe Digest December 1959, Vol.2 No.4 (Quarterly Technical bulletin)\u003cbr\u003e3. 1952 Electronic Measuring Instruments for Science and Industry\u003cbr\u003e4. Dawe Technical Information Sheet for a Transistor Phase Meter\u003cbr\u003e5. A black leather transit case, which is firm with good stitching but does have some cracks and tears in the leather.\u003c\/p\u003e\n\u003cp\u003eA nice useful collectible for the vintage technology aficionado!\u003c\/p\u003e\n\u003cp\u003eMade in England by Dawe Instruments Limited, Concord Road, Western Avenue, London W3 0SD. Dawe is well known for producing high quality electrical, photographic, communication and industrial equipment. They were licensed in the UK to produce Branson instruments, a U.S producer of ultrasonic equipment.\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\" rel=\"noopener noreferrer\"\u003evintage technology tests, measures and meters.\u003c\/a\u003e\u003c\/p\u003e","brand":"Dawe Instruments","offers":[{"title":"Default Title","offer_id":36751433302165,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC03344_e25e4127-41ec-4950-ad70-510ee6eb25e0.jpg?v=1602071907"},{"product_id":"1930s-childrens-arrow-intercom-telephone-set-vintage-toy","title":"1930s Children's Arrow Intercom Telephone Set Vintage Toy","description":"\u003ch1\u003e1930s Children's Arrow Intercom Telephone Set Vintage Toy\u003c\/h1\u003e\n\u003cp\u003eThis is a very nice Vintage 1930s Children’s Arrow Intercom Telephone Set Vintage Toy. The toy was by Arrow Motors, 8-10 Carlisle Road, The Hyde, London NW9, England: I can’t find any reference to the company but the factory area is now occupied by a number of small companies.\u003c\/p\u003e\n\u003cp\u003eAn expensive toy when first released and increasingly difficult to find in such good cosmetic condition.\u003cbr\u003eThe design of the telephones is based on the 1930s British Classic GPO 200 Series Pyramid phone.\u003c\/p\u003e\n\u003cp\u003eIt comprises the original box, two black bakelite telephones, the instruction booklet, and an original silk covered Extension wire. The idea being that the two children (or adults) could talk to one another via the phones when located in different parts of the house! Apparently, they were manufactured without a bell\/ringer.\u003c\/p\u003e\n\u003cp\u003eThis would have been a very expensive toy when many people in the UK didn’t have landline phones and mobiles were still a SciFi dream.\u003c\/p\u003e\n\u003cp\u003eThe box is worn and stained, with the lid held together by sticky tape. The small phones are in excellent cosmetic condition.\u003c\/p\u003e\n\u003cp\u003eEach phone set required four 4 volt pocket lamp batteries: Batteries are not included and this type are no longer available to buy. We have tested the phones using an external circuit and we did manage to get a calling tone.\u003c\/p\u003e\n\u003cp\u003eThe box is labelled: –\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eArrow Telephone Set\u003c\/p\u003e\n\u003cp\u003eMade in England\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003eBox Dimensions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeight: 12cm\u003c\/li\u003e\n\u003cli\u003eLength: 25cm\u003c\/li\u003e\n\u003cli\u003eWidth: 24cm\u003c\/li\u003e\n\u003c\/ul\u003e\nClick on the following links for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/vintage-toys\" target=\"_blank\"\u003e\u003cstrong\u003evintage toys\u003c\/strong\u003e\u003c\/a\u003e and \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/vintage-games\" target=\"_blank\"\u003e\u003cstrong\u003egames.\u003c\/strong\u003e\u003c\/a\u003e","brand":"Arrow Motors","offers":[{"title":"Default Title","offer_id":36855384604821,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC03671_f15bf3b8-e47b-4be1-abce-f64738a004ca.jpg?v=1602419879"},{"product_id":"1930s-thermodial-white-bakelite-bimetallic-thermometer","title":"1930s Thermodial White Bakelite Bimetallic Thermometer","description":"\u003ch1\u003e1930s Thermodial White Bakelite Bimetallic Thermometer\u003c\/h1\u003e\n\u003cp\u003eA 1930s \u003cem\u003eThermodial\u003c\/em\u003e White Bakelite Bimetallic Thermometer in good working order. It has a lovely face, with an easy to read dial showing the ‘freezing point’ temperature of 32 ºF. Measures from 10 to 130 ºF.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe bakelite has no chips, cracks or restoration.\u003c\/li\u003e\n\u003cli\u003eThe chrome accent is slightly pitted\u003c\/li\u003e\n\u003cli\u003eThe felt on the base is thin in some areas.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e(Apologies for the reflection in the face in the images!).\u003c\/p\u003e\n\u003cp\u003eMade by Thermo dial, Newark, New Jersey, USA (a subsidiary of Fisher Scientific).\u003c\/p\u003e\n\u003cp\u003eA ‘must have’ item for the man cave, she den, study or office. It measures temperature in Fahrenheit and is encased in a Bakelite moulding, with a chrome and bakelite plinth; allowing it to display nicely on an office desk or mantelpiece. The rear of the thermometer has a metal plate where the mechanism can be adjusted to give the correct temperature reading.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlinth Depth: 4.6cm\u003c\/li\u003e\n\u003cli\u003ePlinth Length: 12.8cm (5″)\u003c\/li\u003e\n\u003cli\u003eHeight (Plinth and Thermometer): 12cm\u003c\/li\u003e\n\u003cli\u003eDiameter of thermometer face: 7cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/meterological-weather\" target=\"_blank\"\u003evintage thermometers.\u003c\/a\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eBimetallic Thermometer\u003c\/h2\u003e\n\u003cp\u003eThe thermometer has a metal pointer that moves up and down a circular scale. The pointer is mounted on a coiled piece of metal called a bimetallic strip. The hotter the temperature, the more the bimetallic strip expands, and the more it pushes the pointer up the scale.\u003c\/p\u003e","brand":"Thermodial","offers":[{"title":"Default Title","offer_id":36961117765781,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC03811.jpg?v=1603183025"},{"product_id":"vintage-gpo-electrical-clock-pulse-type-62a","title":"Vintage GPO Electrical Clock Pulse Type 62A","description":"\u003ch1\u003eVintage GPO Electrical Clock Pulse Type 62A\u003c\/h1\u003e\n\u003cp\u003eThis unusual looking gadget is a, 1950s, Vintage GPO Electrical Clock, Pulse Type 62A, sitting within an Oak Case With Glass Window. They were used for timing functions in telephone exchanges and driven by the exchange master clock.\u003cbr\u003eThis particular clock has not been tested but is in very good cosmetic condition with some scuffs and wear commensurate with age and use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Case Size\u003c\/strong\u003e\u003cbr\u003eHeight; 9cm\u003cbr\u003eWidth: 18.6cm\u003cbr\u003eDepth: 18.6cm\u003c\/p\u003e\n\u003cp\u003eThe maker is unknown but many of these clock mechanisms were manufactured by the well know clock maker, GENTS. It was designed to be wall mounted (fixtures and fittings are not included).\u003c\/p\u003e\n\u003cp\u003eClock has the following markings:-\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eTPD RK\u003c\/em\u003e (on the front of the case)\u003c\/p\u003e\n\u003cp\u003eand the following on the rear of the case:-\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eGPO 62A DCA 59\/2\u003c\/em\u003e (this dates it to 1959)\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e27 Aug ??\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eGPO\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eAPP\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e3072\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e30 second and one second pulses were required to drive the clock, and these were derived from the master clock (Clock No. 36- not included). A Bell, No. 48A, was usually provided, (not included). It would ring for 30 seconds every half hour until the Clock No.62A was switched off.\u003cbr\u003eThe terminal arrangement permitted ‘start and reset’ or ‘continuous’ operation.\u003c\/p\u003e\n\u003cp\u003eA great addition to a clock collection or office display.\u003c\/p\u003e\nPlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-clocks-watches-timepieces\" target=\"_blank\" rel=\"noopener noreferrer\"\u003evintage clocks.\u003c\/a\u003e","brand":"General Post Office GPO","offers":[{"title":"Default Title","offer_id":37171627131029,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC05475_6aec3b68-2196-468e-a972-031a857fb24f.jpg?v=1604579913"},{"product_id":"ww2-admiralty-transmitting-triode-valve-thermionic-tube-cv1222-nt39-at75","title":"WW2 Admiralty Transmitting Triode Valve\/Thermionic Tube CV1222\/NT39\/AT75","description":"\u003ch1 class=\"normal break-word mb-xs-2\" data-buy-box-listing-title=\"\" data-listing-id=\"707618710\"\u003eWW2 Admiralty Transmitting Triode Valve\/Thermionic Tube CV1222\/NT39\/AT75\u003c\/h1\u003e\n\u003cp\u003eThis is a little piece of Radio Communication history in the form of a British ,Air Cooled, WW2 Admiralty Transmitting Triode Valve\/Thermionic Tube CV1222\/NT39\/AT75. They were manufactured from the 1920s to the 1940s.\u003c\/p\u003e\n\u003cp\u003eIt has a large 4-pin bayonet base and external anode with integral finned radiator. The valve was suitable as an amplifier or oscillator down to 10 metres at full rating and down to 4 metres at reduced HT voltage. Marconi were thought to have used this type of valve in their transmitters.\u003c\/p\u003e\n\u003cp\u003eA nice looking gadget for display in the vintage office, the filament is actually showing continuity; a sign that the valve is probably working!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Dimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHeight: 21.5cm\u003cbr\u003eDiameter Base: 4.8cm\u003c\/p\u003e\n\u003cp\u003eThe triode is very faintly stencilled with:\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eADMIRALTY\u003c\/p\u003e\n\u003cp\u003e813\u003c\/p\u003e\n\u003cp\u003eNT39\u003c\/p\u003e\n\u003cp\u003eand the air ministry arrow\u003c\/p\u003e\n\u003cp\u003ealso: 5433C\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification- see image\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFilament: 10 V – 1.65 A\u003cbr\u003eMax. anode voltage: 1500 V\u003cbr\u003eMax. anode dissipation: 75 W\u003cbr\u003eAmplification factor: 22\u003cbr\u003eMutual conductance: 5.0 mA\/V\u003cbr\u003eAnode impedance: 4200 ohms\u003cbr\u003eMax frequency for 75% anode rating: 37 MHz\u003c\/p\u003e\nPlease click on the following links for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/radio-equipment-accessories\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eradio communication accessories\u003c\/a\u003e or \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/militaria\" target=\"_blank\" rel=\"noopener noreferrer\"\u003emilitaria.\u003c\/a\u003e\u003cstrong\u003e\u003c\/strong\u003e","brand":"Admiralty","offers":[{"title":"Default Title","offer_id":37199773859989,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC04192_80b68ad0-2772-45fe-8412-ca13448facf6.jpg?v=1604842762"},{"product_id":"1920s-ferranti-af5-large-audio-frequency-transformer","title":"1920s Ferranti AF5 Large Audio Frequency Transformer","description":"\u003ch1\u003e1920s Ferranti AF5 Large Audio Frequency Transformer\u003c\/h1\u003e\n\u003cp\u003eThis small 1920s Ferranti AF5 Large Audio Frequency Transformer is really a work of art. It's never been out of its box and is excellent condition.\u003c\/p\u003e\n\u003cp\u003eThe impedance has been measured as follows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrimary: 2K4\u003c\/li\u003e\n\u003cli\u003eSecondary: 30K8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe box is scuffed and discoloured and one of the flaps is missing and another has detached.\u003c\/p\u003e\n\u003cp\u003eA copy of the original specification is shown below:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApproximate Size (WHD): 7.8 x 9.5 x 7 cm\u003c\/li\u003e\n\u003cli\u003eRatio 1 to 3.5\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInductance 120\/170 Henries\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"1920s Ferranti AF5 Large Audio Frequency Transformer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/Ferranti_AF5_Transformer_480x480.jpg?v=1605017801\" style=\"display: block; margin-left: auto; margin-right: auto;\" width=\"454\" height=\"670\"\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\"\u003evintage tech.\u003c\/a\u003e\u003c\/p\u003e","brand":"Ferranti","offers":[{"title":"Default Title","offer_id":37220382769301,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC09504_75a79303-8296-4ee7-a130-72d2cb8d9726.jpg?v=1605018331"},{"product_id":"copy-of-ferranti-air-ministry-voltmeter-10a-12524-new-in-box","title":"Ferranti Air Ministry Voltmeter 10A\/12524 New In Box","description":"\u003ch1\u003e Ferranti Air Ministry Voltmeter 10A\/12524 New In Box\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThis lovely little black coated meter is a Ferranti Air Ministry Voltmeter 10A\/12524 New In Box.  Made by Ferranti Limited, manufacturers of electronics, particularly to the military.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe meter is in very good condition with some surface storage marks\/dust. The brown cardboard box is complete, although the staples have rusted with age.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Meter Size:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase Diameter: 6.7cm\u003c\/li\u003e\n\u003cli\u003eDepth including screws: 4.8cm\u003c\/li\u003e\n\u003cli\u003eFront Width: 8.2cm\u003c\/li\u003e\n\u003cli\u003eFace Diameter: 6cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe meter and\/or cardboard box have the following markings:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAir Ministry \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRef 10A\/12524 (10A is the RAF stores reference for Miscellaneous Radio Equipment)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSerial Number 21166\u003c\/li\u003e\n\u003cli\u003eVolts \u003c\/li\u003e\n\u003cli\u003eFerranti Limited\u003c\/li\u003e\n\u003cli\u003eRange 0-2000 volts\u003c\/li\u003e\n\u003cli\u003eThe back of the meter is marked F. Ltd D841\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA great little collectible for those whom love vintage test meters and militaria.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eWWII During the war, \u003c\/span\u003e\u003cb\u003eFerranti\u003c\/b\u003e\u003cspan\u003e became a major supplier of electronics, and was heavily involved in the early development of radar in the United Kingdom. In the post-war era this became a large segment of their company, with various branches supplying radar sets, avionics and other military electronics, both in the UK and their various international offices. Valve production was expanded to supply other companies as well as Ferranti.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage tests, meters and measures\u003c\/a\u003e\u003c\/p\u003e","brand":"Air Ministry","offers":[{"title":"Default Title","offer_id":37325846642837,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC09660.jpg?v=1605702437"},{"product_id":"1920s-ebonite-loudspeaker-horn-for-gec-gecophone-model-a-bc2600","title":"1920s Ebonite Loudspeaker Horn For GEC Gecophone Model A BC2600","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003ch1\u003e1920s Ebonite Loudspeaker Horn For GEC Gecophone Model A BC2600\u003c\/h1\u003e\n\u003cp\u003eThis wonderful looking object is a 1920s Ebonite Loudspeaker Horn For GEC Gecophone Model A BC2600, made by General Electric Company in 1925.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Size:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHorn Max. Diameter: 35.7 cm (~14\")\u003c\/li\u003e\n\u003cli\u003eHeight: 68cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e(NB: Since it is so big it will have to be shipped via courier, hence the higher cost of postage)\u003c\/p\u003e\n\u003cp\u003eMade of moulded Ebonite (vulcanised rubber) with a brass ferrule.\u003c\/p\u003e\n\u003cp\u003eIt's a Radio Loudspeaker horn used, as part of the Gecophone loudspeaker system, to enhance the sound acoustics from a crystal set or gramophone before loudspeakers had been perfected.  This allowed a room of people to listen as opposed to an individual using headphones.\u003c\/p\u003e\n\u003cp\u003eEngraved with GEC at the rear towards the metal ferrule.\u003c\/p\u003e\n\u003cp\u003eThe horn and loudspeaker were advertised in the June 17th 1925 edition of Wireless World (see image).\u003c\/p\u003e\n\u003cp\u003eIn good condition, with a few surface scuffs commensurate with age and use.\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\nPlease click on the following links for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/radio-equipment-accessories\" target=\"_blank\"\u003evintage radio accessories \u003c\/a\u003eand \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\"\u003evintage technology.\u003c\/a\u003e\u003cbr\u003e","brand":"GEC (General Electric Co)","offers":[{"title":"Default Title","offer_id":37655404707989,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/IMG_2183.jpg?v=1608221225"},{"product_id":"1950s-voltage-divider-ts-89-ap-used-for-radar-calibration","title":"1950s Voltage Divider TS-89\/AP Used For Radar Calibration","description":"\u003ch1 data-listing-id=\"647486886\"\u003e1950s Voltage Divider TS-89\/AP Used For Radar Calibration\u003c\/h1\u003e\n\u003cp data-listing-id=\"647486886\"\u003eThis weird and wonderful object is a 1950s Voltage Divider TS-89\/AP Used For Radar Calibration. It would have been used in conjunction with an oscilloscope for testing the AN\/APG-5; an S-Band Range Finding Pulse Radar of the type found in the B-17 (Flying Fortress) \u0026amp; B-24 USAF Aircraft.\u003c\/p\u003e\n\u003cp data-listing-id=\"647486886\"\u003e\u003cstrong\u003eApproximate Size:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-listing-id=\"647486886\"\u003eWidth: 8.2 cm\u003c\/li\u003e\n\u003cli data-listing-id=\"647486886\"\u003eHeight: 24.5 cm\u003c\/li\u003e\n\u003cli data-listing-id=\"647486886\"\u003eLength: 13.7 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis would make a fantastic display object for the man cave, office or hobby room!\u003c\/p\u003e\n\u003cp\u003eMade from solid brass with stainless steel screws and ceramic accents, this device was made in the U.S, by ‘Western Electric,’ New York, in the days when quality was not compromised by cost! Your own little piece of aviation history in the form of a B17 USAF Flying Fortress test kit on your desk or shelf.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIt has been lovingly polished and cleaned ready for its new owner to care for. Extremely rare, this device would be a real conversation or museum piece! We are selling it as a display item only.\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage technology tests and meters.\u003c\/a\u003e\u003c\/p\u003e","brand":"Western Electric","offers":[{"title":"Default Title","offer_id":37813975122069,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC00936_5cb3ea51-e9aa-4156-98dc-8f362f79e0eb.jpg?v=1609755648"},{"product_id":"antique-millikin-folding-pocket-surgical-knife-bistoury","title":"Antique Millikin Folding Pocket Surgical Knife Bistoury","description":"\u003ch1 class=\"normal break-word mb-xs-2\" data-buy-box-listing-title=\"\" data-listing-id=\"754572919\"\u003eAntique Millikin Folding Pocket Surgical Knife Bistoury\u003c\/h1\u003e\n\u003cp\u003eThis little beauty is an Antique (1865-1875) Millikin Folding Pocket Surgical Knife known as a ‘Bistoury’, (straight and pointed or blunt surgical knife), made of steel by John Millikin (late Bigg \u0026amp; Millikin) of 12, Southwark Street, London. It looks like a penknife!\u003c\/p\u003e\n\u003cp\u003eIt is in fair used condition, except that the tip has broken off one of the two knives. It does have some surface blemishes and the knives are very difficult to push back into the holder. A rare survivor from an era pre-anaesthetics! The only other I have seen is in the London Science Museum!\u003c\/p\u003e\n\u003cp\u003eThis would make a fun addition to a medical instruments collection.\u003c\/p\u003e\n\u003cp\u003eWhen folded, measures approximately 9.9cm (4″) in length.\u003c\/p\u003e\n\u003cp\u003eMarked Millikans, Southwark St.which dates it to 1865-1875. Millikin, a medical and surgical instrument supplier, were based in St Thomas’s Street pre-1865 and were in Southwark Street for less than 10 years before moving back to St. Thomas’s Street, London in 1875.\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-medical-devices\" target=\"_blank\"\u003evintage medical devices\u003c\/a\u003e\u003c\/p\u003e","brand":"Millikin","offers":[{"title":"Default Title","offer_id":37866659774613,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC06208_b5cc4bfa-bb9f-43f3-b978-e65ea98b27f4.jpg?v=1610372144"},{"product_id":"1940s-sel-three-pole-motor-no-3-1262-4-volts-1-5-amp","title":"1940s SEL Three Pole Motor No.3 1262 4 Volts 1.5 amp","description":"\u003ch1\u003e1940s SEL Three Pole Motor No.3 1262 4 Volts 1.5 amp\u003c\/h1\u003e\n\u003cp\u003eThis is a quite rare British 1940s SEL Three Way Motor No.3 1262 4 Volts 1.5 amp.\u003c\/p\u003e\n\u003cp\u003eA great find for all collectors of vintage tech. In good condition with slight loss of paint and surface blemishes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate measurements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase Width: 8.8 cm\u003c\/li\u003e\n\u003cli\u003eBase Length:- 10.1 cm (4\")\u003c\/li\u003e\n\u003cli\u003eHeight: 6 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis small 4 Volt electric motor was made by Signalling Equipment Limited (SEL): catalogue number 1262. The motor has two red curved magnetic pole-plates, a three-arm set of coils, and an electromagnet between the plates. The base is made from black \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/bakelite-plastics\" title=\"Bakelite\" target=\"_blank\"\u003eBakelite\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA useful dynamo motor e.g. for Model Steam Engines including; Meccano\/Mamod\/Wilesco. It dates to the 1930s\/40s.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/SEL_3_1262_motor_240x240.jpg?v=1610980527\" style=\"display: block; margin-left: auto; margin-right: auto;\" width=\"265\" height=\"390\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSummary\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDie Cast Metal arm and body with chrome non-ferrous (Nickel) fixtures\u003c\/li\u003e\n\u003cli\u003eRadius cornered base\u003c\/li\u003e\n\u003cli\u003eBlack and Red Paint \u003c\/li\u003e\n\u003cli\u003eManufacturer SEL (Trade name for \u003cspan data-mce-fragment=\"1\"\u003eJ. L. Randall of Potters Bar, Middlesex)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eMarked on the Top with\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eSEL (Signalling Equipment Limited) Logo \u003c\/li\u003e\n\u003cli\u003eMotor No.3\/1262\u003c\/li\u003e\n\u003cli\u003e4 volts 1.5 amp\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\"\u003evintage technology.\u003c\/a\u003e\u003c\/p\u003e\n\u003cdiv data-element-id=\"id1429604210185\" id=\"id1429604210185\" class=\"design-element element-size-box has-rich-content user-selectable-element clickable-element has-rich-content has-text is-section-child\"\u003e\n\u003cdiv data-element-id=\"id1429604210185\" class=\"element-main-box design-element-main-box has-rich-content user-selectable-element clickable-element has-rich-content has-text\"\u003e\n\u003cdiv data-element-id=\"id1429604210185\" class=\"element-border-box element-border-target element-padding-box design-element-border-box has-rich-content user-selectable-element clickable-element has-rich-content has-text\"\u003e\n\u003cdiv data-element-id=\"id1429604210185\" class=\"element-content-box design-element-content-box has-rich-content user-selectable-element clickable-element has-rich-content has-text\"\u003e\n\u003cdiv data-element-id=\"id1429604210185\" class=\"content-container content-container-type element-size-box element-size-target has-rich-content user-selectable-element clickable-element has-rich-content has-text\"\u003e\n\u003cdiv class=\"rich-text-element-content absolute-fill element-content dir-ltr\"\u003e\n\u003cdiv class=\"rich-text-positioning-wrapper vertical-alignment-top\"\u003e\n\u003cdiv class=\"rich-text-content common-rich-content-style has-content\"\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cspan class=\"theme-text-color-0-0\"\u003e\u003cu\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cspan style=\"border-top-left-radius: 2px; border-top-right-radius: 2px; border-bottom-right-radius: 2px; border-bottom-left-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font-style: normal; font-variant-caps: normal; font-weight: bold; font-stretch: normal; font-size: 11px; line-height: 20px; font-family: 'Helvetica Neue', Helvetica, sans-serif; color: #ffffff; background-image: url(data:image\/svg+xml; base64,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); background-size: 14px 14px; background-color: #bd081c; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; border: none; -webkit-font-smoothing: antialiased; background-position: 3px 50%; background-repeat: no-repeat no-repeat;\"\u003eSave\u003c\/span\u003e\u003cspan style=\"border-top-left-radius: 2px; border-top-right-radius: 2px; border-bottom-right-radius: 2px; border-bottom-left-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font-style: normal; font-variant-caps: normal; font-weight: bold; font-stretch: normal; font-size: 11px; line-height: 20px; font-family: 'Helvetica Neue', Helvetica, sans-serif; color: #ffffff; background-image: url(data:image\/svg+xml; base64,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); background-size: 14px 14px; background-color: #bd081c; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; border: none; -webkit-font-smoothing: antialiased; background-position: 3px 50%; background-repeat: no-repeat no-repeat;\"\u003eSave\u003c\/span\u003e","brand":"SEL Signalling Equipment Limited","offers":[{"title":"Default Title","offer_id":37949649780885,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC00370_3be02fa1-9ca6-405f-96a3-d71958631195.jpg?v=1610980295"},{"product_id":"1929-general-radio-type-558-amateur-band-frequency-meter-in-wood-transit-case","title":"1929 General Radio Type 558-P Amateur Band Frequency Meter In Wood Transit Case","description":"\u003ch1\u003e1929 General Radio Type 558-P Amateur Band Frequency Meter In A Wood Transit Case\u003c\/h1\u003e\n\u003cp\u003eThis great looking piece of vintage tech is a 1929 General Radio Type 558-P Amateur Band Frequency Meter In A Wood Transit Case. The wavemeter\/frequency meter was made by General Radio Co., Cambridge, Mass. USA, from 1928-1935: see the image of the original advert below.\u003c\/p\u003e\n\u003cp\u003eComplete with its original coils (A to E) and calibration chart mounted on a metal plate. The original instruction leaflet is stuck to the inside of the box lid.\u003c\/p\u003e\n\u003cp\u003eFrequency measured: \u003cspan data-mce-fragment=\"1\"\u003e4.6 (Coil A)- 86 Metres (Coil E)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/GENERAL_558_FROM_1928_480x480.jpg?v=1611054608\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Size of Case:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWidth: 29.6 cm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeight: 14.7 cm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDepth: 18 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn pretty good cosmetic condition with some surface blemishes. The top of the meter has engrained dirt, which slightly masks the numbers on the meter but they are still readable. The excess dirt wiped off with a damp cloth.\u003c\/p\u003e\n\u003cp\u003eA nice little collectible for those of us whom love \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage test meters\u003c\/a\u003e and \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/radio-equipment-accessories\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eradio accessories. \u003c\/a\u003e\u003c\/p\u003e","brand":"General Radio Co","offers":[{"title":"Default Title","offer_id":37950802722965,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC00445.jpg?v=1611054454"},{"product_id":"1918-nalder-brothers-thompson-solid-copper-cased-voltmeter1918-nalder-brothers-thompson-solid-copper-cased-voltmeter","title":"1918 Nalder Brothers \u0026 Thompson Solid Copper Cased Voltmeter","description":"\u003ch1\u003e1918 Nalder Brothers \u0026amp; Thompson Solid Copper Cased Voltmeter\u003c\/h1\u003e\n\u003cp\u003eThis fantastic looking test meter is an antique 1918 Nalder Brothers \u0026amp; Thompson Solid Copper Cased Voltmeter. It has a wonderful polished copper face, black coated copper sides and a steel back.\u003c\/p\u003e\n\u003cp\u003eNalder Brothers and Thompson\u003cspan data-mce-fragment=\"1\"\u003e Limited were a British company based at Dalston Lane, Hackney, London (1899-1969).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe voltmeter measures 0-100 Volts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMarked on the face with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNalder Bros \u0026amp; Thompson Ltd\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eB.S 1st Grade No. 184181\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eVolts\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e1918\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eApproximate Size\u003c\/span\u003e:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWidth: 10.8cm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeight: 9.2cm\u003c\/li\u003e\n\u003cli\u003eDepth: 6.8 cm (including screws)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn good condition with surface scuffs and blemishes commensurate with age and use. There is a crack in the glass window which could be replaced by the new owner if desired.  It hasn't been tested and is sold as a collectible for display only.\u003c\/p\u003e\n\u003cp\u003eA lovely little antique test meter to add to your collection!\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage test meters.\u003c\/a\u003e\u003c\/p\u003e","brand":"Nalder Bros \u0026 Thompson (NBS)","offers":[{"title":"Default Title","offer_id":37969615028373,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC00493.jpg?v=1611234225"},{"product_id":"vintage-negretti-and-zambra-relative-humidity-meter","title":"Vintage Negretti And Zambra Relative Humidity Meter. Wall Hanging","description":"\u003ch1\u003eVintage Negretti And Zambra Relative Humidity Meter. Wall Hanging\u003c\/h1\u003e\n\u003cp\u003eThis is a very nice, small (4 1\/4 inch diameter), Vintage Negretti And Zambra Relative Humidity Meter in a black cast casing with a hook for wall hanging. \u003c\/p\u003e\n\u003cp\u003eIn pretty good working condition, with a few surface scuffs and scratches in the paintwork, and a few flecks of dirt under the glass, commensurate with age and use. I am not sure how accurate it is at measuring % Relative Humidity, and I haven't tried to calibrate it.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eApproximate Face Diameter\u003c\/strong\u003e: 11cm\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eApproximate Rear Diameter\u003c\/strong\u003e: 9.8cm\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eA hair hygrograph measures the humidity (or dew point). It works by using the principle that a human or horse hair changes length depending on the level of humidity in the air. This particular instrument was manufactured, approximately, in the 1950s but the design dates back much earlier. They were also sold as pocket instruments, although you'd need fairly big pockets or a lab coat!\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe face is marked as follows:-\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem\u003eRange 0\/ 100%\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem\u003eNegretti and Zambra Logo\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem\u003ePercentage Relative Humidity\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem\u003eMade in England\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem\u003eNegretti \u0026amp; Zambra\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cem\u003eLondon\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eAll in all this represents a scarce opportunity to obtain one of these instruments for use or to add to your collection.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/meterological-weather\" target=\"_blank\"\u003evintage weather\/meterological instruments\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eSome Trivia For You\u003c\/h2\u003e\n\u003cbr data-mce-fragment=\"1\"\u003eNegretti \u0026amp; Zambra was founded in 1850 by Henry Negretti and Joseph Zambra. The company has a world renown reputation for producing some of the finest quality scientific, meteorological, and optical instrumentation. In fact, so good that they were appointed instrument makers for the Royal Observatory, British Admiralty and members of the British Royal Family; including Queen Victoria.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eNegretti was acquired by Meggitt Holdings in 1985. \u003cbr\u003e\u003cspan style=\"border-top-left-radius: 2px; border-top-right-radius: 2px; border-bottom-right-radius: 2px; border-bottom-left-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font-style: normal; font-variant-caps: normal; font-weight: bold; font-stretch: normal; font-size: 11px; line-height: 20px; font-family: 'Helvetica Neue', Helvetica, sans-serif; color: #ffffff; background-image: url(data:image\/svg+xml; base64,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); background-size: 14px 14px; background-color: #bd081c; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; border: none; -webkit-font-smoothing: antialiased; background-position: 3px 50%; background-repeat: no-repeat no-repeat;\"\u003eSave\u003c\/span\u003e\u003cspan style=\"border-top-left-radius: 2px; border-top-right-radius: 2px; border-bottom-right-radius: 2px; border-bottom-left-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font-style: normal; font-variant-caps: normal; font-weight: bold; font-stretch: normal; font-size: 11px; line-height: 20px; font-family: 'Helvetica Neue', Helvetica, sans-serif; color: #ffffff; background-image: url(data:image\/svg+xml; base64,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); background-size: 14px 14px; background-color: #bd081c; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; border: none; -webkit-font-smoothing: antialiased; background-position: 3px 50%; background-repeat: no-repeat no-repeat;\"\u003eSave\u003c\/span\u003e","brand":"Negretti and Zambra","offers":[{"title":"Default Title","offer_id":37976170397845,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC05499.jpg?v=1611236172"},{"product_id":"1920s-lockies-marine-engineers-drawing-and-indicator-diagram-scales","title":"1920s Lockie's Marine Engineers Drawing And Indicator Diagram Scales In Original Box","description":"\u003ch1\u003e1920s Lockie's Marine Engineers Drawing And Indicator Diagram Scales In Original Box\u003c\/h1\u003e\n\u003cp\u003eThis is a lovely piece of maritime history in the form of a set of 1920s Lockie's Marine Engineers Drawing And Indicator Diagram Scales in Original box: measuring 32.5cm x 3.7cm.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe set comprises seven varnished cardboard drawing and indicator diagram scales by John Lockie, Leith.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e The scales numbered 1-5 are regular imperial scales of various inches to the foot including:-\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eFull Size and Half Size\u003c\/li\u003e\n\u003cli\u003e1 1\/2 \u0026amp; 3 inches to 1 foot\u003c\/li\u003e\n\u003cli\u003e4 inches and 2 inches to 1 foot\u003c\/li\u003e\n\u003cli\u003e1\/2inch \u0026amp; 1 inch to 1 foot \u003c\/li\u003e\n\u003cli\u003e3\/4 inch and 3\/8 inch to 1 foot\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe other two scales are not numbered:-\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eindicator diagram scale giving figures for pounds to 1 inch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMetric ruler \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLabel on the front of the cardboard case reads:-\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eBoard of Trade Examinations\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eLockie's\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDrawing and \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eIndicator\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDiagram\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eScales\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFor\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eMarine Engineers\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePrice 1\/9 Net. per set \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSole Wholesale Agents Jas. Munro \u0026amp; Co, Ltd, 16 Carrick Street, Glasgow, C2\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese scales are increasingly difficult to source. The only other one I have seen resides at the National Maritime Museum, Greenwich, London.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e Please click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/nautical-marine-boating-maritime\" target=\"_blank\" rel=\"noopener noreferrer\"\u003enautical themed collectibles.\u003c\/a\u003e\u003c\/p\u003e","brand":"John Lockie","offers":[{"title":"Default Title","offer_id":38057364422805,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC07339_0f62e956-a918-4d1d-826d-384c237d644c.jpg?v=1612179099"},{"product_id":"ww2-1943-british-army-moving-coil-voltmeter-pocket-250-volt-no-2-za7372","title":"WW2 1943 British Army Moving Coil Voltmeter Pocket 250 Volt No.2 ZA7372","description":"\u003ch1\u003eWW2 1943 British Army Moving Coil Voltmeter Pocket 250 Volt No.2 ZA7372\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThis lovely little black coated meter is a WW2 1943 British Army Moving Coil Voltmeter Pocket 250 Volt No.2 ZA7372. Although unmarked, it was made by the Electrical Apparatus Co., London, manufacturers of electric motors and switchgear.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThe meter is in very good cosmetic condition with some surface scuffs\/marks\/dust, commensurate with age and use.  It has not been tested.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Meter Size:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDiameter: 6.8 cm\u003c\/li\u003e\n\u003cli\u003eDepth: 3.3 cm\u003c\/li\u003e\n\u003cli\u003eHeight: 9.6 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMilitary Broad Arrow ↑\u003c\/li\u003e\n\u003cli\u003eMoving Coil 1943 D.C\u003c\/li\u003e\n\u003cli\u003eBritish Army Stores Number ZA 7372\u003c\/li\u003e\n\u003cli\u003eVoltmeter Pocket 250 Volt No.2\u003c\/li\u003e\n\u003cli\u003eSerial Number 333310\u003c\/li\u003e\n\u003cli\u003eRes. 345 ohms per volt\u003c\/li\u003e\n\u003cli\u003eRange 0-250 volts or press the button on the side for 0-15 volts \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA great little collectible for those whom love \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage tests, meters and measures\u003c\/a\u003e\u003c\/p\u003e","brand":"Electrical Apparatus Co.","offers":[{"title":"Default Title","offer_id":38083411312789,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC00778.jpg?v=1612625702"},{"product_id":"1940s-acweeco-avo-minor-13-range-moving-coil-multimeter","title":"1940s ACWEECO AVO Minor 13-Range Moving Coil Multimeter","description":"\u003ch1\u003e1940s ACWEECO AVO Minor 13-Range Moving Coil Multimeter\u003c\/h1\u003e\n\u003cp\u003eThis amazing little gadget is a 1940s ACWEECO AVO Minor 13-Range Moving Coil Multimeter.\u003c\/p\u003e\n\u003cp\u003eA wonderful piece of electronic history, it comes with its original wood case, 3mm probes, and instruction booklet. It hasn't been tested and is sold as a collectible only. \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe instrument was designed to take an EverReady U10 battery, which is now obsolete, and is not included. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe meter is in good cosmetic condition with some surface scuffs and blemishes. The outer transit case is made from black paper covered wood and has numerous scuffs and blemishes where the paper has rubbed off. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAVO Minor Meter: (\u003cstrong\u003eAcweeco\u003c\/strong\u003e: \u003cstrong\u003eA\u003c\/strong\u003eutomatic \u003cstrong\u003eC\u003c\/strong\u003eoil \u003cstrong\u003eW\u003c\/strong\u003einder And \u003cstrong\u003eE\u003c\/strong\u003electrical\u003cstrong\u003e E\u003c\/strong\u003equipment \u003cstrong\u003eCo\u003c\/strong\u003e. Ltd)\u003c\/li\u003e\n\u003cli\u003eManufacturing Date: 1943 \u003c\/li\u003e\n\u003cli\u003eMeter Type: Moving Coil Multimeter measures in milliamps and volts\u003c\/li\u003e\n\u003cli\u003eBody: Black \u003c\/li\u003e\n\u003cli\u003eMetal label screwed on the rear with the \u003cem\u003eInstructions For Use\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eApproximate Meter Size (W.H.D): 10.2 cm  (4\") x 4.4cm x 7.8cm (3\")\u003c\/li\u003e\n\u003cli\u003eMade in England by The Automatic Coil Winder And Electrical Equipment Co. Ltd, Einder House, Douglas Street London S.W.1\u003c\/li\u003e\n\u003c\/ul\u003e\nPlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage tests, measures and meters.\u003c\/a\u003e","brand":"AVO (ACWEECO)","offers":[{"title":"Default Title","offer_id":39431997849749,"sku":"Box 42","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC01283_232db5ae-0d8f-4029-9986-dab28151c4e5.jpg?v=1615562140"},{"product_id":"1930s-avodapter-portable-tester-for-a-single-four-five-or-seven-pin-valve-with-avocoupler-1","title":"1930s AvoDapter Portable Tester For A Single Four \/ Five Or Seven Pin Valve With AvoCoupler","description":"\u003ch1\u003e1930s AvoDapter Portable Tester For A Single Four \/ Five Or Seven Pin Valve With AvoCoupler\u003c\/h1\u003e\n\u003cp\u003eThis amazing little gadget is a 1930s \u003cem\u003eAvoDapter\u003c\/em\u003e Portable Tester For A Single Four \/ Five Or Seven Pin Valve With \u003cem\u003eAvoCoupler\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eA wonderful piece of electronic history, it comes with its original box. Although it does appear to be in working condition, it is being is sold as a collectible only. \u003c\/p\u003e\n\u003cp\u003eThe tester is in very good cosmetic condition with some surface scuffs and blemishes. The outer transit box is scuffed, discoloured and blemished with age.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcweeco\u003c\/strong\u003e: \u003cstrong\u003eA\u003c\/strong\u003eutomatic \u003cstrong\u003eC\u003c\/strong\u003eoil \u003cstrong\u003eW\u003c\/strong\u003einder And \u003cstrong\u003eE\u003c\/strong\u003electrical\u003cstrong\u003e E\u003c\/strong\u003equipment \u003cstrong\u003eCo\u003c\/strong\u003e. Ltd\u003c\/li\u003e\n\u003cli\u003eAVO Recommended that this tester was used in conjunction with an Universal Avometer for AC\/DC measurements\u003c\/li\u003e\n\u003cli\u003eManufacturing Date: 1930s\u003c\/li\u003e\n\u003cli\u003eComprises Black\/Brown Bakelite with a cream metal instruction panel on the rear\u003c\/li\u003e\n\u003cli\u003eApproximate case Size (W.H.D): 14.8 cm  x 9.0 cm x 12 cm \u003c\/li\u003e\n\u003cli\u003eGB Patent No. 399193 filed in 1932 by Sidney H Rawlings (ACWEECO) \u003c\/li\u003e\n\u003cli\u003eMade in England by The Automatic Coil Winder And Electrical Equipment Co. Ltd, Einder House, Douglas Street London S.W.1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/Avodapter_480x480.jpg?v=1619625578\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease click on the following link for more \u003c\/span\u003e\u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage tests, measures and meters\u003c\/a\u003e\u003c\/p\u003e","brand":"AVO (ACWEECO)","offers":[{"title":"Default Title","offer_id":39950052589717,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC01696_b4d24e73-0a47-461d-a5e2-2ad83c708d7a.jpg?v=1619625475"},{"product_id":"1930s-vintage-gpo-style-two-pole-dpdt-large-knife-switch","title":"1930s Vintage GPO style Two Pole DPDT Large Knife Switch","description":"\u003ch1\u003e1930s Vintage GPO style Two Pole DPDT Large Knife Switch\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThis amazing looking piece of electrical history is a 1930s Vintage GPO style Two Pole DPDT Large Knife Switch.\u003c\/p\u003e\n\u003cp\u003eEbonite and Brass construction on a Mahogany plinth, the knife switch is a Double Pole Double Throw (DPDT) centre-off, and probably used in an industrial setting e.g Marine\/Factory\/Power Station.  They are often referred to as Frankenstein switches!\u003c\/p\u003e\n\u003cp\u003eThere is no discernible maker's mark. In good condition, we have left the patina but it would also look great polished. There are a few scuffs and surface blemishes but it's in good condition for its age.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Size\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase Width: 18.8 cm \u003c\/li\u003e\n\u003cli\u003eHeight with switch horizontal: 4 cm\u003c\/li\u003e\n\u003cli\u003eBase Depth: 12.4 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe ebonite in the centre of the switch yoke is made from Ebonite\/Paxolin and is there to prevent flashover between the poles at high voltage. It must have been used for very high current applications due to the thickness of the conductor! \u003c\/p\u003e\n\u003cp\u003eA lovely item for collectors of electrical devices or steampunk!\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\" rel=\"noopener noreferrer\"\u003evintage technology.\u003c\/a\u003e\u003c\/p\u003e","brand":"Unknown","offers":[{"title":"Default Title","offer_id":40039398310037,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/IMG_4191.jpg?v=1620649500"},{"product_id":"1943-ww2-wec-pocket-volt-meter-no-1-250-volts","title":"1943 WW2 WEC Pocket Volt meter No.1 250 Volts","description":"\u003ch1 class=\"override-listing-title normal break-word mb-xs-2\" data-buy-box-listing-title=\"\" data-listing-id=\"676125596\"\u003e1943 WW2 WEC Pocket Volt meter No.1 250 Volts\u003c\/h1\u003e\n\u003cp\u003eThis 1943 WW2 WEC Pocket Volt meter No.1 250 Volts is a wonderful little device. It has a black metal back with chrome surround, and was made by WEC: Westinghouse Electric Company.\u003c\/p\u003e\n\u003cp\u003eThe unit has not been tested and is being sold as a collectible, for display only. It is in very good cosmetic condition but with a few scuffs and some loss of chrome coating, commensurate with age and use. \u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eA nice addition to a vintage technology or militaria collection.\u003cbr\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe pocket Voltmeter, face diameter ~5.2 cm\/2\", measured the following:-\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e0-25 Volts\u003cbr data-mce-fragment=\"1\"\u003e0-250 Volts \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNo.500332\u003c\/p\u003e\n\u003cp\u003eW.E.C\u003c\/p\u003e\n\u003cp\u003e1943\u003c\/p\u003e\n\u003cp\u003eMilitary Arrow \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/220px-Broad_Arrow__simplified__2013-07-08.svg_bc69a491-8e66-4918-811e-292af5455de1_16x16.png?v=1620317008\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/220px-Broad_Arrow__simplified__2013-07-08.svg_bc69a491-8e66-4918-811e-292af5455de1_16x16.png?v=1620317008\"\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage testing equipment and meters.\u003c\/a\u003e\u003c\/p\u003e","brand":"WEC","offers":[{"title":"Default Title","offer_id":40114050957461,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC02076_4608f204-bbdd-4a22-aba9-4fadd5a5c201.jpg?v=1764246945"},{"product_id":"ww1-wireless-telegraph-w-t-buzzer-made-by-tingey-wireless-ltd","title":"WW1 Wireless Telegraph W\/T Buzzer Made By Tingey Wireless Ltd","description":"\u003ch1\u003eWW1 Wireless Telegraph W\/T Buzzer Made By Tingey Wireless Ltd\u003c\/h1\u003e\n\u003cp\u003eThis wonderful little piece of scientific kit is a WW1 Wireless Telegraph W\/T Buzzer Made By Tingey Wireless Ltd.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Size:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWood Base Width: 12.1 cm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTotal Height: 5cm\u003c\/li\u003e\n\u003cli\u003eDepth: 8.7 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe ebonite base plate is marked W.R.H Tingey, London E.C, the brand of Tingey Wireless Ltd., 92, Queen Street, Hammersmith, London. The locking control is made from brass and ebonite, and the buzzer casing and two terminals from lacquered brass. The ensemble is mounted on an oak wood base.\u003c\/p\u003e\n\u003cp\u003eIn good cosmetic condition, and a nice little collectible for the militaria aficionado or wireless communications enthusiast.\u003c\/p\u003e\n\u003cp\u003eThis type of buzzer was used in the WW1 W\/T Trench Set Mk. III as magnified in the image below:-\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/WW1_Wireless_Set_480x480.jpg?v=1624460610\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/radio-equipment-accessories\" target=\"_blank\"\u003evintage wireless\/radio accessories.\u003c\/a\u003e\u003c\/p\u003e\n\u003cblockquote type=\"cite\"\u003e\n\u003cblockquote type=\"cite\"\u003e\u003c\/blockquote\u003e\n\u003cblockquote type=\"cite\"\u003e\u003c\/blockquote\u003e\n\u003cblockquote type=\"cite\"\u003e\n\u003ch1\u003e\u003c\/h1\u003e\n\u003c\/blockquote\u003e\n\u003cblockquote type=\"cite\"\u003e\u003c\/blockquote\u003e\n\u003c\/blockquote\u003e","brand":"WRH Tingey Wireless Ltd","offers":[{"title":"Default Title","offer_id":40282743799957,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC02354.jpg?v=1624463616"},{"product_id":"sei-velometer","title":"1960s AEI Type 3002 Velometer Serial Number 3388262","description":"\u003ch1\u003e1960s AEI Type 3002 Velometer Serial Number 3388262\u003c\/h1\u003e\n\u003cp\u003eThis 1960s AEI Type 3002 Velometer Serial Number 3388262 is in fantastic condition. It was used for measuring air velocity and pressure.\u003c\/p\u003e\n\u003cp\u003eIt was made By SEI (Salford Electrical Instruments) of Eccles, Manchester for Associated Electrical Industries Ltd (AEI), both part of GEC and known for their high quality meters, instruments, and components.\u003c\/p\u003e\n\u003cp\u003eThe case and components are all in very good condition, although the case does smell very musty. It has not been tested and is being sold as a collectible only.\u003c\/p\u003e\n\u003cp\u003eIt was last calibrated by AEI on 5\/12\/72.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase Measures Approximately:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWidth:  57 cm\u003c\/li\u003e\n\u003cli\u003eHeight: 8.5 cm\u003c\/li\u003e\n\u003cli\u003eDepth: 26 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cspan size=\"5\" face=\"Arial\"\u003eIt comes with \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eThe original transit case with two keys\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMost items marked with the Serial No. 3388262\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnalogue Velometer\u003c\/li\u003e\n\u003cli\u003eA piece of protective foam which has disintegrated with age (not included)\u003c\/li\u003e\n\u003cli\u003eJets including; No. 2215, 2220, RH10, RH30\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRubber pipes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDuct Jet Fittings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTwo Vanes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTest certificate for 1972\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp data-empty=\"true\"\u003eVelometers are a type of accelerometer which provides a voltage reading that is proportional to the velocity of the air in an area.\u003c\/p\u003e\n\u003cp data-empty=\"true\"\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage testing equipment, measures and meters.\u003c\/a\u003e\u003c\/p\u003e","brand":"SEI Salford Electrical Instruments","offers":[{"title":"Default Title","offer_id":40736193314965,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC02514.jpg?v=1627996831"},{"product_id":"pair-of-1975-british-military-moving-coil-model-909-voltmeters-model-909-20-volt-dc-fsd-2-square","title":"Pair Of 1975 British Military Moving Coil Model 909 Voltmeters Model 909. 20 Volt DC FSD 2\" Square","description":"\u003ch1\u003ePair Of 1975 British Military Moving Coil Voltmeters Model 909. 20 Volt DC FSD 2\" Square\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThese lovely small black coated meters are a Pair Of 1975 British Military Moving Coil Model 909 Voltmeters. 20 Volt DC FSD 2\" Square. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMarked on the rear ETC, which I think is the abbreviation for the Ernest Turner Company. They are new old stock\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThe meters are in very good cosmetic condition with some surface storage related scuffs\/marks\/dust. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Meter Size:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase Diameter: 5.2 cm (2\")\u003c\/li\u003e\n\u003cli\u003eDepth including fixings: 5.2 cm\u003c\/li\u003e\n\u003cli\u003eFace Width: 5.6 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSummary:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMilitary Broad Arrow ↑\u003c\/li\u003e\n\u003cli\u003eNato Stock No. (NSN) 6625-99-580-5384\u003c\/li\u003e\n\u003cli\u003eMoving Coil 1975 D.C\u003c\/li\u003e\n\u003cli\u003eVoltmeter \u003c\/li\u003e\n\u003cli\u003eTRA 3315489\u003c\/li\u003e\n\u003cli\u003ecalibrated at 400 c\/s\u003c\/li\u003e\n\u003cli\u003e1000 Ω\/v NFe \u003c\/li\u003e\n\u003cli\u003eRange 0-25 volts DC, Full scale deflection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA great little collectible for those whom love \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage tests, meters and measures\u003c\/a\u003e\u003c\/p\u003e","brand":"Ernest Turner","offers":[{"title":"Default Title","offer_id":41088934576277,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC02873_da96501b-2f16-44a6-8e75-c2c33dbb7c7a.jpg?v=1631448144"},{"product_id":"vintage-casella-london-clockwork-aspirated-psychrometer-for-measuring-humidity-in-its-original-case","title":"Vintage Casella London Clockwork Aspirated Psychrometer For Measuring Humidity In Its Original Case","description":"\u003ch1\u003eVintage Casella London Clockwork Aspirated Psychrometer For Measuring Humidity In Its Original Case\u003c\/h1\u003e\n\u003cp class=\"\"\u003eThis strange looking piece of scientific equipment is a Vintage Casella London Clockwork Aspirated Psychrometer For Measuring Humidity In Its Original Case. It dates to the 1950s\/60s and has had very little use.\u003c\/p\u003e\n\u003cp class=\"\"\u003eIt comprises of:-\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo Assman type wet and dry bulb thermometers encased in polished chrome tubes known as 'radiation' tubes.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eA detachable fan powered by a clockwork motor with winding key; also encased in polished chrome.\u003c\/li\u003e\n\u003cli\u003eA wooden case to hold the instrument\u003c\/li\u003e\n\u003cli\u003eI'm not sure if there is anything missing. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe aspirated psychrometer (also known as the Assman hygrometer) is in good condition with some superficial marks, scratches and discolouration.\u003c\/p\u003e\n\u003cp\u003eThe wooden case is blemished by scratches and marks but its appearance could be improved by the new owner by some light sanding and polishing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Box size:\u003c\/strong\u003e Width 58.2cm, Depth 12.5cm, Height 13.5cm\u003c\/p\u003e\n\u003cp class=\"\"\u003eManufactured by CF Casella \u0026amp; Co, London (established in 1799 and suppliers of scientific equipment to eminent scientists and engineers, including Charles Darwin), this beautiful instrument was used for calibrating humidity sensors using the wire wet and dry bulb system.\u003c\/p\u003e\n\u003cp class=\"\"\u003eA nice item to display for collectors of \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003escientific equipment.\u003c\/a\u003e\u003c\/p\u003e","brand":"Casella","offers":[{"title":"Default Title","offer_id":41162794205333,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC02868.jpg?v=1632321255"},{"product_id":"1930s-parkinson-rototherm-chrome-square-folding-desk-thermometer","title":"1930s Parkinson Rototherm Chrome Square Folding Desk Thermometer","description":"\u003ch1\u003e1930s Parkinson Rototherm Chrome Square Folding Desk Thermometer\u003c\/h1\u003e\n\u003cp\u003eA Vintage 1930s Parkinson Rototherm Chrome Square Folding Desk Thermometer. Small in size with a lovely face and an easy to read dial measuring from -20 to 140 ºF.\u003cbr\u003e\u003cbr\u003eBritish Patent Number 378314: patent dating to 1932. Marked 'Parkinson' (the manufacturer) and 'Rototherm' on the face.\u003cbr\u003e\u003cbr\u003eA ‘must have’ item for the man cave, she den, study or office. It measures temperature in Fahrenheit, and is encased in a Chromed Brass case with a fold out stand on the rear allowing it to display nicely on an office desk or mantelpiece. It is pretty portable since it is foldable and fairly light.\u003cbr\u003e\u003cbr\u003eThe bimetallic thermometer is in working order but I can't attest as to its accuracy. There is pitting \/loss of chrome and some blemishes on the face. The brass has discoloured with age.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eApproximate Dimensions:\u003c\/strong\u003e\u003cbr\u003eFolded Depth: 2.3cm\u003cbr\u003eWidth: 6.6cm\u003cbr\u003eHeight: 6.6cm\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/meterological-weather\" target=\"_blank\"\u003emeteorological and weather r\u003c\/a\u003eelated items.\u003c\/p\u003e\n\u003cp\u003eNB: The photos have been taken with and without flash hence the differences in colour.\u003c\/p\u003e\n\u003ch2\u003eBimetallic Thermometer\u003c\/h2\u003e\n\u003cp\u003eRototherm invented the bimetallic thermometer in 1934. The thermometer has a metal pointer that moves up and down a circular scale. The pointer is mounted on a coiled piece of metal called a bimetallic strip. The hotter the temperature, the more the bimetallic strip expands, and the more it pushes the pointer up the scale.\u003c\/p\u003e","brand":"Rototherm","offers":[{"title":"Default Title","offer_id":41957566775553,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/IMG_0743.jpg?v=1635424362"},{"product_id":"1915-handbook-of-technical-instruction-for-wireless-telegraphists-by-jc-hawkhead-hm-dowsett","title":"1915 Handbook of Technical Instruction for Wireless Telegraphists by JC Hawkhead \/ HM Dowsett","description":"\u003ch1\u003e1915 Handbook of Technical Instruction for Wireless Telegraphists by JC Hawkhead \/ HM Dowsett\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThis WW1 era book is a 1915 Handbook of Technical Instruction for Wireless Telegraphists by JC Hawkhead \/ HM Dowsett, published By The Wireless Press Limited.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis is an original hard back book from 1915 and not a reprint. It contains some schematics, drawings and monochrome photographs. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe inside pages have yellowed, and the owner has annotated the inside covers in pencil. The red book cover is in distressed condition with discolouration, fading, a tear near the spine and distortion.  A good candidate for book binding.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e* \u003cstrong\u003eApproximate size\u003c\/strong\u003e:  Height: 21.8cm x Width 14.7cm x Depth 2cm\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis classic book is a real snapshot in the history of wireless telegraphy. A great book of historical significance for the book collector or wireless communication history aficionado.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003eIt contains information on subject matter such as; electromagnetic waves, the receiving circuit, 0.5\/1.5\/5 K.W Sets and Aerial, emergency transmitting apparatus and portable sets.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSummary\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e* Used Hardcover: 309 pages, 7 Chapters \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Authors: J.C. Hawkhead and H.M. Dowsett\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Publisher: The Wireless Press Limited, Marconi House, WC, London\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e* Published in 1915 Second Edition\u003cbr\u003e\u003cspan\u003e* Book Condition: Distressed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eThere is pencil writing on the front\/back end papers but is otherwise not annotated. \u003c\/li\u003e\n\u003cli\u003eDiscoloured and Stained Red cloth hardcover with gold lettering. \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpine ends and corners have wear and bumps. The spine has broken but the pages are intact\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInterior has browned with age\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/vintage-and-collectible-books\" target=\"_blank\"\u003evintage \u0026amp; collectible books.\u003c\/a\u003e\u003c\/p\u003e","brand":"JC Hawkhead \/ HM Dowsett","offers":[{"title":"Default Title","offer_id":42581991751937,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/IMG_2029.jpg?v=1646840591"},{"product_id":"1950s-weston-sangamo-s85-bakelite-photometer-in-its-original-leather-case","title":"1950s Weston Sangamo S85 Bakelite Photometer In Its Original Leather Case","description":"\u003ch1\u003e1950s Weston Sangamo S85 Bakelite Photometer In Its Original Leather Case\u003c\/h1\u003e\n\u003cp\u003eThis lovely little piece of vintage tech is a 1950s Weston Sangamo S85 Bakelite Photometer In Its Original Leather Case. It also comes with its original operating instructions!\u003c\/p\u003e\n\u003cp\u003eIt is in very cosmetic condition: with some superficial scuffs. Although the needle is moving in different lighting conditions, it does not appear to be operating properly, hence it is being sold as a collectible for display only.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eApproximate Size (WHD): \u003c\/strong\u003e\u003c\/span\u003e 5.2 x 8 x 3 cm\u003c\/p\u003e\n\u003cp\u003eIt would have been used by Lighting Engineers to measure the lighting source in different working environments e.g. office, classroom, factory floor e.t.c. It has a table on the back of the instrument, and in the operating booklet, giving a selected set of recommended illumination values for different types of work\/working environment.  \u003c\/p\u003e\n\u003cp\u003eIt has two ranges of sensitivity, and is calibrated in foot-candles (lumens per square feet). \u003c\/p\u003e\n\u003cp\u003e1 lux = 0.093 lumen\/ SQ FT )or 1 Ft.C\u003c\/p\u003e\n\u003cp\u003eYou press the switch on the top to move from the lower (x1) to higher (x5 measuring up to 125 foot candles) sensitivity range. \u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eA wonderful little scientific instrument. There is even one in the collection at the Science Museum!\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage test\/measures\/meters.\u003c\/a\u003e\u003c\/p\u003e","brand":"Sangamo Weston","offers":[{"title":"Default Title","offer_id":42586758807809,"sku":"","price":14.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/1950s_Weston_Sangamo_S85_Bakelite_Photometer_In_Its_Original_Leather_Case.jpg?v=1779450019"},{"product_id":"1930s-type-acm-r-bakelite-room-thermostat-with-fahrenheit-and-centigrade-scale-made-by-robert-maclaren","title":"1930s Type ACM-R Bakelite Room Thermostat With Fahrenheit And Centigrade Scale Made By Robert Maclaren","description":"\u003cdiv class=\"filed style-scope application-timeline\" date=\"\"\u003e\u003c\/div\u003e\n\u003ch1 class=\"filed style-scope application-timeline\"\u003e1930s Type ACM-R Bakelite Room Thermostat With Fahrenheit And Centigrade Scale Made By Robert Maclaren\u003c\/h1\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eThis is a wonderful 1930s Type ACM-R Bakelite Room Thermostat With Fahrenheit And Centigrade Scale Made By Robert Maclaren.\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003e\u003cstrong\u003eApproximate Size: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase Width: 10.7cm\u003c\/li\u003e\n\u003cli\u003eHeight (including knob): 9.5cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eA beautiful octagonal shape in bakelite, with a brass scale and bakelite turning knob. In good cosmetic condition, the brass scale has discoloured and the bakelite has a fews scuffs and blemishes commensurate with age and use.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eIt would make a great collectible for those whom love vintage electrical gear and vintage home decor. You could even use it as a paperweight!\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eWe are selling it for display only as its 90 years old and won't meet modern Health and Safety electrical standards.\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eMade In Great Britain by Robert Maclaren \u0026amp; Co Ltd of Kilbirnie Street, Glasgow\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eBritish Patent: 451005  filed on 26\/071935\u003c\/p\u003e\n\u003cdiv class=\"flex title style-scope application-timeline\"\u003e\u003cspan class=\"title-text style-scope application-timeline\"\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cp class=\"flex title style-scope application-timeline\"\u003e\u003cspan class=\"title-text style-scope application-timeline\"\u003eAC 20 Amps 0-250V 50 ~ DC 0.1 Amp 0\/250V\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"flex title style-scope application-timeline\"\u003e \u003c\/p\u003e\n\u003cp class=\"flex title style-scope application-timeline\"\u003e\u003cspan class=\"title-text style-scope application-timeline\"\u003ePlease click on the following links for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\"\u003evintage technology\u003c\/a\u003e and \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/home-decor-architectural-salvage\" target=\"_blank\"\u003ehome decor \/ architectural salvage.\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"flex title style-scope application-timeline\"\u003e\u003cspan class=\"title-text style-scope application-timeline\"\u003e\u003c\/span\u003e\u003c\/div\u003e","brand":"Robert Maclaren","offers":[{"title":"Default Title","offer_id":42701059293441,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/1930sTypeACM-RBakeliteThermostatWithFahrenheitAndCentigradeScaleMadeByRobertMaclaren.jpg?v=1649340574"},{"product_id":"1930s-bakelite-room-in-line-thermostat-with-fahrenheit-scale","title":"1930s Bakelite In Line Thermostat With Fahrenheit Scale 86B 924LB","description":"\u003cdiv class=\"filed style-scope application-timeline\" date=\"\"\u003e\u003c\/div\u003e\n\u003ch1 class=\"filed style-scope application-timeline\"\u003e1930s Bakelite In Line Thermostat With Fahrenheit Scale 86B 924LB\u003c\/h1\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eThis is a wonderfully made 1930s Bakelite In Line Thermostat With Fahrenheit Scale 86B 924LB.\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003e\u003cstrong\u003eApproximate Size: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase Width: 10.7cm\u003c\/li\u003e\n\u003cli\u003eHeight (including knob): 9.5cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eA beautiful rectangular shape in bakelite, with a brass Fahrenheit scale reading from 45 to 75 ºF, and a large knurled bakelite turning knob. In good cosmetic condition, the brass scale has discoloured and the bakelite has a fews scuffs and blemishes commensurate with age and use.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eThis is a well made piece of electrical history with the inside mechanism demonstrating the high quality of the engineering.\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eIt would make a great collectible for those whom love vintage electrical gear and vintage home decor. You could even use it as a paperweight!\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eWe are selling it for display only as its 90 years old and won't meet modern Health and Safety electrical standards.\u003c\/p\u003e\n\u003cp class=\"filed style-scope application-timeline\"\u003eMade In Great Britain but the manufacturer is unknown. During WW2 they were made for the RAF with the \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAir Ministry Stores Ref No 5A\/2889. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"flex title style-scope application-timeline\"\u003e\u003cspan class=\"title-text style-scope application-timeline\"\u003ePlease click on the following links for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\"\u003evintage technology\u003c\/a\u003e and \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/home-decor-architectural-salvage\" target=\"_blank\"\u003ehome decor \/ architectural salvage.\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"flex title style-scope application-timeline\"\u003e\u003cspan class=\"title-text style-scope application-timeline\"\u003e\u003c\/span\u003e\u003c\/div\u003e","brand":"Unknown","offers":[{"title":"Default Title","offer_id":42701160349953,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC04346.jpg?v=1649344492"},{"product_id":"1920s-kit-for-making-basketweave-honeycomb-rf-coils-used-in-early-radio","title":"1920s Kit For Making Basketweave \/ Honeycomb RF Coils Used In Early Radio","description":"\u003ch1\u003e1920s Kit For Making Basketweave \/ Honeycomb RF Coils Used In Early Radio\u003c\/h1\u003e\n\u003cp\u003eThis 1920s Kit For Making Basketweave \/ Honeycomb RF Coils Used In Early Radio has a very interesting provenance.\u003c\/p\u003e\n\u003cp\u003eIt is accompanied by a 1969 letter from Mr Povey of the GPO Museum in Taunton, Somerset, to Mr Profaze of the Science Museum, London, explaining the purpose of the kit!\u003c\/p\u003e\n\u003cp\u003eI assume honeycomb coils, used in early radio broadcasting, must have been quite expensive, so these kits enabled you to make your own.\u003c\/p\u003e\n\u003cp\u003eThere are two wood 'bobbins' available, as well as the brass pins that would have been used in conjunction with cotton covered wire (not included) for winding.\u003c\/p\u003e\n\u003cp\u003eA lovely piece of radio communication history!\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-domestic-military-amateur-radios-and-radio-equipment\" target=\"_blank\"\u003eearly radio broadcasting equipment.\u003c\/a\u003e\u003c\/p\u003e","brand":"Unknown","offers":[{"title":"Default Title","offer_id":42760200716545,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/IMG_3294.jpg?v=1650617401"},{"product_id":"1930s-vintage-two-pole-dpdt-small-knife-switch","title":"1930s Vintage Double Pole Double Throw DPDT Aerial Knife Switch 9 cm x 5 cm","description":"\u003ch1\u003e1930s Vintage Double Pole Double Throw DPDT Aerial Knife Switch 9 cm x 5 cm\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThis amazing looking piece of electrical history is a 1930s White Porcelain 9cm (3 1\/2 inch) Length and 5cm (2\") Wide Width Double Pole Double Throw (DPDT) Aerial Knife Switch.\u003c\/p\u003e\n\u003cp\u003eModel number BN 1004. 10A\/250V\u003c\/p\u003e\n\u003cp\u003eB within a triangle makers mark\u003c\/p\u003e\n\u003cp\u003eMade in Germany.\u003c\/p\u003e\n\u003cp\u003eThere are a few scuffs and surface blemishes but it's in good condition for its age.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Size\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase Length: 9cm \u003c\/li\u003e\n\u003cli\u003eHeight with switch horizontal: 3.5 cm\u003c\/li\u003e\n\u003cli\u003eBase Width: 5 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA lovely item for collectors of electrical devices or steampunk!\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\"\u003evintage technology.\u003c\/a\u003e\u003c\/p\u003e","brand":"Unknown","offers":[{"title":"Default Title","offer_id":42795646681345,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/IMG_3344.jpg?v=1651570593"},{"product_id":"1960s-mechanical-west-german-ankle-pedometer-in-original-box","title":"1960s Mechanical West German Ankle Pedometer In Original Box","description":"\u003ch1\u003e1960s Mechanical West German Ankle Pedometer In Original Box\u003c\/h1\u003e\n\u003cp\u003eThis lovely 1960s Mechanical West German Ankle Pedometer In Original Box is in pristine condition. It doesn't look to have had any use!  \u003c\/p\u003e\n\u003cp\u003eBesides its original plastic box, it comes with the outer cardboard box, leather ankle strap, and instruction leaflet. It appears to be working but I can't attest to its accuracy.\u003c\/p\u003e\n\u003cp\u003eWalking distance is indicated by a pointer on the instrument dial. Recommended placement is just above the ankle as the four pedometer scales are calibrated to four pace lengths, ranging from 19 to 25 inches.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApproximate Size:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFace Diameter: 38mm \u003c\/li\u003e\n\u003cli\u003ePlastic Box (WHD): 14.2 x 2.3 x 4.4 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA nice little vintage piece of technology for the ardent rambler!\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more\u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e vintage technology tests\/measures\/meters.\u003c\/a\u003e\u003c\/p\u003e","brand":"Unknown","offers":[{"title":"Default Title","offer_id":43160830017793,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC01214_65a62110-68da-47c6-b1f2-0d247ac7bb6f.jpg?v=1659617724"},{"product_id":"1930-tavo-meci-multimeter-with-avostat-23-39-by-siegfried-guggenheimer","title":"1930 Tavo Meci Multimeter With Avostat 23 \/ 39 by Siegfried Guggenheimer","description":"\u003ch1\u003e1930 Tavo Meci Multimeter With Avostat 23 \/ 39 by Siegfried Guggenheimer\u003c\/h1\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThis 1930 Tavo Meci Multimeter With Avostat 23 \/ 39 by Siegfried Guggenheimer is a real survivor and has an unusual history.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eMade by the German company, Siegfried Guggenhemier, (prior to becoming Metrawatt AG in 1933), this case of Tavo accessories was bought in 1930 in France for the Chief Engineer, (Mr V. Cockle), of Service\/Installations at Pathé:  a major film equipment and production company.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe instructions for using the multimeters is on a metal label, attached to the rear of the meters, and written in French. There is also an accompanying instruction booklet written in French: which is slightly grubby but intact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe transit case is in fair condition with scuffs and tears in the surface covering. The actual multimeter accessories are in very good condition but have not been tested.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTransit case size\u003c\/strong\u003e: - 24 x 22.5 x 7 cm \u003c\/p\u003e\n\u003cp\u003eThe chief engineer obviously didn't trust his colleagues as he has written his name and company address on the inside of the case!\u003c\/p\u003e\n\u003cp\u003eThe contents comprise the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAvostat 23 No. 423645: used for direct current for measuring current and voltage measurements\u003c\/li\u003e\n\u003cli\u003eAvostat 39 No. 423647: used for alternating \u003cspan data-mce-fragment=\"1\"\u003ecurrent for measuring current and voltage measurements\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eTAVO MECI: moving coil movement; Direct current; \u003cbr data-mce-fragment=\"1\"\u003eScales: 0 ... 30 V= \/ 0 ... 120 V~ \/ 0 ... 30 V~ (non-linear scales)\u003c\/li\u003e\n\u003cli\u003e30A Shunt\u003c\/li\u003e\n\u003cli\u003e15A Shunt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFantastic collectible for those of us whom love \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\"\u003evintage technology\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for \u003ca href=\"https:\/\/www.historische-messtechnik.de\/downloads\/dr.-s.-guggenheimer---tavo-1930-gebrauchsanwei.pdf\" target=\"_blank\"\u003ean instruction book written in German\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cem\u003eAn \u003c\/em\u003e\u003ci\u003eEnglish Translation of an excerpt from the instructions: \u003c\/i\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eAvostat for direct current, namely those for current or voltage measurements and those for current and voltage measurements (Avo 21-29.)\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eTerminal designation a+nd - .\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eThe connection is made to the two terminals, namely for voltage measurements according to FIG. 2\/for current measurements according to FIG. 1, taking into account the terminal designations + and -. (See page 3.) If the pointer on the reading instrument deflects incorrectly, the two connections must be reversed.\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eThe reading is taken on scale I.\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eThe values read off the scale are to be multiplied as follows for the different measuring ranges...\u003c\/em\u003e\u003c\/p\u003e","brand":"Siegfried Guggenheimer","offers":[{"title":"Default Title","offer_id":43222724837633,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC04864_ced70a0d-b529-4561-852e-9daec55535d2.jpg?v=1661181656"},{"product_id":"vintage-william-widdop-4-inch-barometer-with-brass-and-wood-surround","title":"Vintage William Widdop 4 Inch Barometer With Brass and Wood Surround","description":"\u003ch1\u003eVintage William Widdop 4 Inch Barometer With Brass and Wood Surround\u003c\/h1\u003e\n\u003cp\u003eIf you love vintage scientific instruments then this small Vintage William Widdop 4 Inch Barometer With Brass and Wood Surround is just for you! It has a round brass hook to allow you to wall hang.\u003c\/p\u003e\n\u003cp\u003eDating to about the 1950s, the circular barometer is in good condition, with no chips or cracks. It appears to be working but I’m not sure as to it’s accuracy. There are a few marks in the brass surround and the face dial, and some scuffs on the wood.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Dimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase Diameter: 12.8cm (5\")\u003c\/li\u003e\n\u003cli\u003eBarometer Diameter: 10cm (4\")\u003c\/li\u003e\n\u003cli\u003eMaximum Depth: 4cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA wonderful looking barometer to complement any home décor \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaker’s Mark on the face of the Barometer:-\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWm Widdop Est. 1883\u003c\/p\u003e\n\u003cp\u003eMade in Germany (probably by Fischer)\u003c\/p\u003e\n\u003cp\u003ePlease click on the following links for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/meterological-weather\" target=\"_blank\"\u003eweather\/meteorological instruments\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"font_8\"\u003e\u003cspan\u003eWilliam Widdop was established in 1883, Brighouse, Yorkshire, originally as a clock maker but has since expanded into other product lines and gift ware. \u003c\/span\u003e\u003c\/p\u003e\n\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e","brand":"William Widdop","offers":[{"title":"Default Title","offer_id":43331751772417,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC04840.jpg?v=1662982758"},{"product_id":"vintage-pw-allen-visual-inspection-light-probes-in-a-wooden-case","title":"Vintage PW Allen Visual Inspection Light probes In A Wooden Case","description":"\u003ch1 class=\"override-listing-title normal break-word mb-xs-2\" data-buy-box-listing-title=\"\" data-listing-id=\"682578149\"\u003eVintage PW Allen Visual Inspection Light probes In  A Wooden Case\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThis is a very nice set of engineering Vintage PW Allen Visual Inspection Light probes In A Wooden Case. It was made by PW Allen \u0026amp; Co of 253, Liverpool Road, London, N1. It would have been used in industry as an inspection lamp for Non Destructive Testing (NDT).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eIn good cosmetic working condition, it c\u003cspan data-mce-fragment=\"1\"\u003eomprises five light probe arms, four 'dental mirror' styled magnifiers and a box of spare bulbs. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe body takes two 'D' cell\/batteries, which are not included due to the difficulty in shipping anything containing batteries.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSummary\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e* PW Allen Type \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Made by PW Allen \u0026amp; Co. (Visual Inspection Engineers whom are now part of Allen- Vanguard)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Approximate Case Size excluding strap (WHD Width, Height, Depth): 26.4 cm x 7.1 cm x 14.5 cm\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/tests-measures\" target=\"_blank\"\u003eVintage testing equipment.\u003c\/a\u003e\u003c\/p\u003e","brand":"PW Allen","offers":[{"title":"Default Title","offer_id":43547227783425,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC05289_b807d95a-59f3-4b94-9e8f-b630fdc123e5.jpg?v=1667829318"},{"product_id":"1920s-set-of-six-mcmichael-hesketh-mh-barrel-type-hf-transformers","title":"1920s Set of Six McMichael Hesketh MH Barrel Type HF Transformers","description":"\u003ch1\u003e1920s Set of Six McMichael Hesketh MH Barrel Type HF Transformers\u003c\/h1\u003e\n\u003cp\u003eThis is a 1920s Set of Six McMichael Hesketh MH Barrel Type HF Transformers. \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThey come with their original leather covered box with faux silk and velvet lining, which is in fairly good condition with a few tears, scuffs and surface blemishes.\u003c\/p\u003e\n\u003cp\u003eThe six McMichael transformers cover the range 80-7000 metres and are in excellent condition.\u003c\/p\u003e\n\u003cp\u003eEach transformer is marked:- \u003c\/p\u003e\n\u003cp\u003eRd DSN no. 705426 (dates to 1924)\u003c\/p\u003e\n\u003cp\u003e0.0003 µF across Primary\u003c\/p\u003e\n\u003cp\u003eRange of Each Transformer (Metres)\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e80-150\u003c\/li\u003e\n\u003cli\u003e150-300\u003c\/li\u003e\n\u003cli\u003e300-600\u003c\/li\u003e\n\u003cli\u003e550-1200\u003c\/li\u003e\n\u003cli\u003e1100-3000\u003c\/li\u003e\n\u003cli\u003e2500-7000\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eTwo small leaflets are included; the one on 'Neutrodyning' refers you to page 326 of the \u003cem\u003eWireless Constructor- \u003c\/em\u003eFeb 1925!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eL McMichael Ltd were Radio Engineers based at Hasting House, Norfolk St, Strand WC.\u003c\/li\u003e\n\u003cli\u003eB Hesketh Ltd were Scientific Instrument Makers in Slough, UK\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eIn 1922 the two companies merged and adopted the trade-mark \u003c\/span\u003e\u003ci\u003eMH\u003c\/i\u003e\u003cspan\u003e (McMichael Hesketh).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-domestic-military-amateur-radios-and-radio-equipment\" target=\"_blank\" rel=\"noopener noreferrer\"\u003evintage radio equipment\u003c\/a\u003e.\u003c\/p\u003e","brand":"MH McMichael\/Hesketh","offers":[{"title":"Default Title","offer_id":43607409361153,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC05394_1_e34eb636-daa8-4806-a7d3-f99f292bc36d.jpg?v=1669300244"},{"product_id":"ww2-acweeco-universal-avo-minor-moving-coil-multimeter","title":"WW2 ACWEECO Universal AVO Minor Moving Coil Multimeter","description":"\u003ch1\u003eWW2 ACWEECO Universal AVO Minor Moving Coil Multimeter\u003c\/h1\u003e\n\u003cp\u003eThis amazing little gadget is a 1940s WW2 ACWEECO Universal AVO Minor Moving Coil Multimeter made for the British Army.\u003c\/p\u003e\n\u003cp\u003eA wonderful piece of electronic history, it does appear to be working but is being sold as a collectible only, and without probes. \u003c\/p\u003e\n\u003cp\u003eIt measures:-\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDC Volts: 5, 25, 100, 250, 500 \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDC mA: 2.5, 5, 25, 100, 500 \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAC Volts: 5, 25, 100, 250, 500 \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNon-linear scale for 5 volts A.C\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eResistance 0- 20k ohm \u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe instrument was designed to take an EverReady U10 battery, which is now obsolete, and is not included.  An AA cell could be used with, for example, a spacer or modified spring. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSerial number 115516-1151\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe meter is in fair cosmetic condition with surface scuffs and blemishes. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAVO Minor Meter: (\u003cstrong\u003eAcweeco\u003c\/strong\u003e: \u003cstrong\u003eA\u003c\/strong\u003eutomatic \u003cstrong\u003eC\u003c\/strong\u003eoil \u003cstrong\u003eW\u003c\/strong\u003einder And \u003cstrong\u003eE\u003c\/strong\u003electrical\u003cstrong\u003e E\u003c\/strong\u003equipment \u003cstrong\u003eCo\u003c\/strong\u003e. Ltd)\u003c\/li\u003e\n\u003cli\u003eManufacturing Date: 1940s\u003c\/li\u003e\n\u003cli\u003eLabelled with the Army Stores Number ZD 00024, and with the military arrow ↑\u003c\/li\u003e\n\u003cli\u003eMeter Type: Moving Coil Multimeter measures in milliamps and volts\u003c\/li\u003e\n\u003cli\u003eBody: Black \u003c\/li\u003e\n\u003cli\u003eMetal label screwed on the rear with the \u003cem\u003eInstructions For Use\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003eApproximate Meter Size (W.H.D): 12 cm  x 9.6 cm x 4.6 cm \u003c\/li\u003e\n\u003cli\u003eMade in England by The Automatic Coil Winder And Electrical Equipment Co. Ltd, Winder House, Douglas Street, London S.W.1\u003c\/li\u003e\n\u003c\/ul\u003e\nPlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage tests, measures and meters.\u003c\/a\u003e","brand":"AVO (ACWEECO)","offers":[{"title":"Default Title","offer_id":43610485850369,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC05458.jpg?v=1669461420"},{"product_id":"1940-air-ministry-am-tester-microphone-type-1-10a-8243-made-by-ferranti","title":"1940 Air Ministry AM Tester Microphone Type 1 10A\/8243 Made By Ferranti","description":"\u003ch1\u003e1940 Air Ministry AM Tester Microphone Type 1 10A\/8243 Made By Ferranti\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThis strange looking device is a WW2 1940 Air Ministry AM Tester Microphone Type 1 10A\/8243 Made By Ferranti.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eA very nice RAF test set related to all the ~WT voice sets. The inbuilt Ferranti voltmeter (scale: 0-10 volts) has the RAF stores reference number 10\/8250 with a resolution of 1000 ohm\/volt. It was designed to test the sensitivity of carbon microphones and worked in conjunction with a noise generator (10A\/ 10154) which is not included.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eIn pretty good condition, there is damage on the left hand side of the top of the jointed mahogany case, which also has various scuffs and blemishes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eApproximate Size (WHD): 17 x 13.2 x 12.5 cm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSold as a collectible for display only, a nice piece of ephemera for the \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/militaria\" target=\"_blank\"\u003emilitaria\u003c\/a\u003e collector!\u003c\/p\u003e","brand":"Air Ministry","offers":[{"title":"Default Title","offer_id":43637958902017,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/1940_Air_Ministry_AM_Tester_Microphone_Type_1_10A_8243_Made_By_Ferranti.jpg?v=1733572999"},{"product_id":"1930s-rogers-violet-ray-home-vitalator-antique-medical-electrotherapy-appliance","title":"1930s Roger's Violet Ray Home Vitalator Antique Medical Electrotherapy Appliance","description":"\u003ch1\u003e1930s Roger's Violet Ray Home Vitalator Antique Medical Electrotherapy Appliance\u003c\/h1\u003e\n\u003cp\u003eThis wonderful piece of quackery is a 1930s Roger's Violet Ray Home \u003cem\u003eVitalator\u003c\/em\u003e Antique Medical Electrotherapy Appliance. \u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003eIt will not pass modern Health and Safety standards and is sold as a collectible, for display only: it has not been tested.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt comes with three electrode attachments and a bakelite applicator handle, which fit neatly into the jointed wood box containing the 'Vitalator.' In fair condition, there are blemishes and rust on the kit: please see images.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe Vitalator comprises two dials, one changes the voltage and the other increases the power.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eBox Size (WHD)\u003c\/strong\u003e: 26.3 x 18.5 x 18 cm\u003c\/p\u003e\n\u003cp\u003eThe box is scuffed and blemished with cracks in the rear panel. It could probably be restored to a better shine if you're looking for a winter project.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis high voltage, high frequency kit produced Ultraviolet rays (UV). Made by Rogers Electric Sales Co. of Craven Street London but actually sold by \u003cmeta charset=\"utf-8\"\u003eHeal Home Electrical Appliances Ltd, 45 Great Ormond Street, London WC1; now part of Great Ormond Street Hospital (GOSH).\u003c\/p\u003e\n\u003cp\u003eThis type of electrotherapy device was invented by Tesla as a home curative for many different ailments. Although it may look like something from a SciFi 'B' movie, a modern version of this is now available for treating a range of conditions including rheumatism.\u003c\/p\u003e\n\u003cp\u003eThe equipment is labelled:-\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUniversal Voltage No. 3457\u003c\/li\u003e\n\u003cli\u003eType S\u003c\/li\u003e\n\u003cli\u003eBritish Manufacture \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eA great vintage scientific curio for collectors of eclectic devices!\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/vintage-technology-scientific-engineering-imaging-medical-equipment-instruments-tools\" target=\"_blank\"\u003evintage tech.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis website has a very useful manual which helps explain the Vitalator's curative powers and gives a description of all the attachments that were available!!\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003ehttps:\/\/www.extremeelectronics.co.uk\/other\/violet-wand-repair\/manual-late-1930s-rogers-vitalator-violet-ray-machine\/\u003c\/p\u003e","brand":"Rogers","offers":[{"title":"Default Title","offer_id":43675414135041,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC05526.jpg?v=1672234078"},{"product_id":"copy-of-vintage-scleroscope-hardness-tester-by-coats-tool-company","title":"Vintage Scleroscope Hardness Tester By Coats Tool Company","description":"\u003ch1\u003eVintage Scleroscope Hardness Tester By Coats Tool Company\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThis fantastic looking scientific instrument is a Vintage Scleroscope Hardness Tester By \u003cem\u003eCoats Tool Company\u003c\/em\u003e. It is exquisitely engineered and comes with its original wood carry box.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApproximate Box Size:\u003c\/strong\u003e-\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWidth: 19.6cm \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeight: 50cm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDepth: 20.3cm\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe instrument is defined as a portable piece of testing equipment but its incredibly heavy!\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA \u003c\/span\u003escleroscope\u003cspan\u003e is a device used to measure rebound hardness based on the elasticity of a \u003c\/span\u003e\u003cspan\u003ematerial without marking the material under test. The device was invented in 1907 by Shore Instruments Manufacturing Company: see schematic from the original patent: \u003c\/span\u003e\u003ca href=\"https:\/\/patents.google.com\/patent\/US962790A\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eUS962790A\u003c\/a\u003e. \u003c\/p\u003e\n\u003cp\u003eThis particular instrument, No. 22295, probably dates to the 1920s and is in wonderful condition. We think that a few parts are missing, including the rubber pressure squeeze bulb, glass from the magnifier, and the scale: replacements could easily be found for the first two.\u003c\/p\u003e\n\u003cp\u003eThe wooden box has internal scuffs and scratches commensurate with age and use.\u003c\/p\u003e\n\u003cp\u003eIt still makes for a very interesting display item. A piece of Scientific and Engineering history!\u003c\/p\u003e\n\u003cp\u003eThere are printed and metal labels on the instrument with the following information:-\u003c\/p\u003e\n\u003cp\u003eCoats Machine Tool Co. Ltd, London, SW1 No. 22295\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures\" target=\"_blank\"\u003evintage tests and measures.\u003c\/a\u003e\u003c\/p\u003e","brand":"Coats Machine Tool Company","offers":[{"title":"Default Title","offer_id":43744808730881,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC07957_b6defca2-b050-4879-9cdd-154fdc6d6ca5.jpg?v=1675431550"},{"product_id":"1930s-apex-599f-ceramic-and-metal-electrical-fuse-box","title":"1930s Apex 599F Ceramic and Metal Electrical Fuse Box","description":"\u003ch1\u003e1930s Apex 599F Ceramic and Metal Electrical Fuse Box\u003c\/h1\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eThis wonderful looking object is a 1930s Apex 599F Ceramic and Metal Electrical Fuse Box, made by the Apex Steel company, Sheffield.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003eThe item has not been electrically tested and would not meet current electricity standards and legislation. It is being sold as a collectible only. \u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003ePatented in 1927, It dates to approximately the 1930s and has two ceramic fuse holders.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eThe following is embossed on the face:-\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"color: #000000;\"\u003eApex \u003c\/span\u003e\u003c\/em\u003e\u003cspan style=\"color: #000000;\"\u003e(this is the manufacturer of the steel box)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"color: #000000;\"\u003e15 Amps 250 Volts \u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"color: #000000;\"\u003eOn\/Off\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"color: #000000;\"\u003eBR. PAT 21090\/27\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eApproximate Size\u003c\/strong\u003e:  (Height) x  (Width; including lever) x cm (Depth)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eIn distressed condition, the steel outer fuse box was once grey\/blue but is now rusty and corroded . The steel isolator switch\/lever can move to the on-off position and vice versa but is very stiff. The porcelain fuse holders are intact and in pretty good condition.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"color: #000000;\"\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/home-decor-architectural-salvage\" target=\"_blank\"\u003earchitectural salvage and home decor\u003c\/a\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Apex Steel Co","offers":[{"title":"Default Title","offer_id":43768466800897,"sku":"","price":35.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC06027_1.jpg?v=1677083781"},{"product_id":"vintage-charles-frank-ramsden-instrument-eyepiece-1-4-in-black-coated-brass-stand","title":"Vintage Charles Frank Ramsden Instrument Eyepiece 1\/4\" In Black Coated Brass Stand","description":"\u003ch1\u003eVintage Charles Frank Ramsden Instrument Eyepiece 1\/4\" In Black Coated Brass Stand\u003c\/h1\u003e\n\u003cp\u003eThis is a wonderfully heavy Vintage Charles Frank Ramsden Instrument Eyepiece 1\/4\" In Black Coated Brass Stand. It was made by the famous instrument makers, Charles Frank of of 67-73 Saltmarket, Glasgow C.1, founded in 1907.\u003c\/p\u003e\n\u003cp\u003eThe brass eyepiece is in fair cosmetic condition with surface scuffs and blemishes commensurate with age and use. The lenses look a little dusty\/cloudy. Screwed into a black coated brass stand, I've no idea if the item is complete or how it was actually used...\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Size\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEye piece Diameter:- 3.6cm\u003c\/li\u003e\n\u003cli\u003eHeight including stand:-8.2cm\u003c\/li\u003e\n\u003cli\u003eBase Width: 6.4cm\u003c\/li\u003e\n\u003c\/ul\u003e\nMakes a nice addition to the \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\"\u003evintage microscopy collection\u003c\/a\u003e or just as a scientific curio \/ paperweight for the vintage office.\u003cspan style=\"border-top-left-radius: 2px; border-top-right-radius: 2px; border-bottom-right-radius: 2px; border-bottom-left-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font-style: normal; font-variant-caps: normal; font-weight: bold; font-stretch: normal; font-size: 11px; line-height: 20px; font-family: 'Helvetica Neue', Helvetica, sans-serif; color: #ffffff; background-image: url(data:image\/svg+xml; base64,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); background-size: 14px 14px; background-color: #bd081c; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; border: none; -webkit-font-smoothing: antialiased; background-position: 3px 50%; background-repeat: no-repeat no-repeat;\"\u003eSave\u003c\/span\u003e\u003cspan style=\"border-top-left-radius: 2px; border-top-right-radius: 2px; border-bottom-right-radius: 2px; border-bottom-left-radius: 2px; text-indent: 20px; width: auto; padding: 0px 4px 0px 0px; text-align: center; font-style: normal; font-variant-caps: normal; font-weight: bold; font-stretch: normal; font-size: 11px; line-height: 20px; font-family: 'Helvetica Neue', Helvetica, sans-serif; color: #ffffff; background-image: url(data:image\/svg+xml; base64,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); background-size: 14px 14px; background-color: #bd081c; position: absolute; opacity: 1; z-index: 8675309; display: none; cursor: pointer; border: none; -webkit-font-smoothing: antialiased; background-position: 3px 50%; background-repeat: no-repeat no-repeat;\"\u003eSave\u003c\/span\u003e","brand":"Charles Frank","offers":[{"title":"Default Title","offer_id":43821726761217,"sku":"","price":22.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC05765.jpg?v=1679585896"},{"product_id":"vintage-protimeter-surveymaster-moisture-meter-for-moisture-measurements-in-timber-plaster-brick","title":"Vintage Protimeter Surveymaster Moisture Meter For Timber, Plaster \u0026 Brick","description":"\u003ch1\u003eVintage Protimeter Surveymaster Moisture Meter For Timber, Plaster \u0026amp; Brick\u003c\/h1\u003e\n\u003cp\u003eThis interesting testing instrument is a Vintage Protimeter Surveymaster Moisture Meter For Timber, Plaster \u0026amp; Brick in its original case with instructions, probes and battery storage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Case Size (WHD):  15.2 x 9 x  17.4 cm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eManufactured by Sir John Gallwey (Instruments) ltd, Marlow, Bucks, UK in the 1960s\/70s. \u003cmeta charset=\"utf-8\"\u003eIt is battery operated with the batteries housed externally in a bespoke cradle. The 2-prong probe is held against the test surface e.g. timber, brick or plaster and the moisture level read from the meter.\u003c\/p\u003e\n\u003cp\u003eIn very good condition, it hasn't been tested as the original B123 batteries supplied with the meter are, not surprisingly given their age, flat.\u003c\/p\u003e\n\u003cp\u003eThe instrument required three x 30v B123 (A413) Ever Ready Batteries which have\u003cspan data-mce-fragment=\"1\"\u003e contacts on each end. These batteries are obsolete but modern alkaline equivalents can be found. \u003cmeta charset=\"utf-8\"\u003e\n\u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003eNB: batteries will not be included due to the problems with shipping items containing batteries.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/tests-measures-meters\" target=\"_blank\" rel=\"noopener noreferrer\"\u003evintage test meters\u003c\/a\u003e\u003c\/p\u003e","brand":"John Gallwey Instruments","offers":[{"title":"Default Title","offer_id":43886044086529,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/DSC06544_a89f0dbd-609f-45e0-b0bc-2408c6929b73.jpg?v=1683734200"},{"product_id":"weston-normal-cell-by-cambridge-instrument-company","title":"Weston Normal Cell By Cambridge Instrument Company","description":"\u003ch1\u003eWeston Normal Cell By Cambridge Instrument Company\u003c\/h1\u003e\n\u003cp\u003eThis is a portable Vintage Weston Normal Cell By Cambridge Instrument Company, which would have been used as a laboratory standard for voltage. They typically stabilised at around 1.018638 Volts. No current was normally drawn from the cell.\u003c\/p\u003e\n\u003cp\u003eThis type of cell was made between 1924-1967 and are no longer in use. \u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003eWe are selling this as a scientific curio\/display item only\u003c\/span\u003e\u003c\/strong\u003e but it is working with a measured output of 1.018 volts at 20ºC.  \u003c\/p\u003e\n\u003cp\u003eThe cell consists of a brass cylinder with 2 connections at top marked ‘+’ and ‘-’.  It is labelled:\u003c\/p\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003eWeston Normal Cell\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003eNP 53754\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003eNo. 15551\u003c\/div\u003e\n\u003cdiv style=\"padding-left: 30px;\"\u003eCambridge Instrument Co. Ltd England\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003eInvented by Edward Weston in 1893, it was adopted as the International Standard for EMF from 1911 until superseded by the Josephson voltage standard in 1990.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Dimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDiameter: 9cm\u003cbr\u003eMax Height: 14.5cm\u003c\/p\u003e\n\u003cp\u003eThis beautiful scientific instrument is a must-have for collectors of \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/tests-measures\" target=\"_blank\"\u003e\u003cstrong\u003evintage electronic\/physics\/science equipment\u003c\/strong\u003e\u003c\/a\u003e as a display item in an office, University, or man-cave.\u003c\/p\u003e\n\u003cp\u003eNB: The photos have been taken with and without flash, hence the differences in colour.\u003c\/p\u003e\n\u003ch2\u003e\u003c\/h2\u003e","brand":"Cambridge Instruments (CI Co)","offers":[{"title":"Default Title","offer_id":43907703996673,"sku":"","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/DSC06683.jpg?v=1686840281"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/collections\/VINT_STETHOSCOPE.png?v=1768311966","url":"https:\/\/mullardantiques.co.uk\/collections\/vintage-scientific-instruments-and-engineering-collectibles.oembed?page=4","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}