{"product_id":"c13-larkspur-radio-aerial-tuning-unit-atu-no-11-5820-99-949-0507","title":"C13 Larkspur Radio Aerial Tuning Unit ATU No.11 5820-99-949-0507","description":"\u003ch1\u003eC13 Larkspur Radio Aerial Tuning Unit ATU No.11 5820-99-949-0507\u003c\/h1\u003e\n\u003cp\u003eThis is an incredibly rare vintage C13 Larkspur Radio Aerial Tuning Unit ATU No.11 5820-99-949-0507, dating to the 1960s.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDark green in colour and in good condition with surface scuffs and scratches commensurate with age and use: it has not been tested. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e(NB: The images were taken with and without flash hence the colour differences. The ATU is dark British Army green in colour).\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMetal label on the left hand side is marked:-\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eTuner Radio Frequency No.11 ↑\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e5820-99-949-0507\u003c\/em\u003e (which is the NATO stores reference number with -99- indicating manufacture in the UK)\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eBCN XM 8225\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Size:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax. Depth: 29cm\u003c\/li\u003e\n\u003cli\u003eHeight: 15cm\u003c\/li\u003e\n\u003cli\u003eDiameter: 12.5cm \u003c\/li\u003e\n\u003cli\u003eUnpacked Weight: 4 kg \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Aerial Tuning Unit No.11 would have been used in conjunction with a C13 Station radio, which was used as a ground station or in vehicles, superseding the C12 and WS19 on which it is based. The tuner matched the 70Ω set output to rod\/aerial wires located adjacent to the C13 set or, remotely, if connected via a 70Ω coaxial feeder with an antenna adapter box. \u003c\/p\u003e\n\u003cp\u003eNB: See appended image of a C13 radio set with a red arrow indicating the position of the ATU No. 11.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFor more information \u003c\/b\u003esee L. Meulstee \u003cem\u003eWireless for the Warrier\u003c\/em\u003e Compendium 2, pages 343\/4.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePlease click on the following links for more\u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/militaria\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e militaria\u003c\/a\u003e or \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/radio-equipment-accessories\" rel=\"noopener noreferrer\" target=\"_blank\"\u003evintage radio equipment.\u003c\/a\u003e\u003c\/p\u003e","brand":"British Military","offers":[{"title":"Default Title","offer_id":57304473862519,"sku":null,"price":253.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/C13_Larkspur_Radio_Aerial_Tuning_Unit_ATU_No.11_5820-99-949-0507_2.jpg?v=1769180259","url":"https:\/\/mullardantiques.co.uk\/en-us\/products\/c13-larkspur-radio-aerial-tuning-unit-atu-no-11-5820-99-949-0507","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}