{"product_id":"sg-brown-head-phones-type-f-r4000-ohms-4","title":"SG Brown Head Phones Type F R4000 Ohms","description":"\u003ch1 class=\"product-single__title\"\u003eSG Brown Head Phones Type F R4000 Ohms\u003c\/h1\u003e\n\u003cp\u003eThese SG Brown Head Phones Type F R4000 Ohms are in pretty good condition considering their age. A fantastic representative of radio\/broadcasting history. A wonderful addition to a radio ephemera collection, and very stylish!\u003c\/p\u003e\n\u003cp\u003eThese Type F have Black bakelite earpieces, Aluminium earpiece cradle, and headband with the original leads. The headphones have a few scuffs and surface scratches commensurate with age and use. The outer part of the black cord is in pretty good condition.  They have been tested and they are working with a total output of ~ 3800 Ohms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSummary\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAluminium Headband\u003c\/li\u003e\n\u003cli\u003eS.G Brown Ltd\u003c\/li\u003e\n\u003cli\u003eType F\u003c\/li\u003e\n\u003cli\u003eMade in Watford, England\u003c\/li\u003e\n\u003cli\u003eBlack Ear piece\u003c\/li\u003e\n\u003cli\u003eOriginal cord\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSome Trivia For You!\u003c\/h2\u003e\n\u003cp\u003ePatent 203121 was granted in 1923, and the headphones initially produced at SG Brown Ltd in Acton, London, UK. They were well known for their radio equipment, microphones and military radio. Brown’s described Type F head receivers as featherweight and having ‘dependability.’\u003c\/p\u003e\n\u003cp\u003eThe company was taken over by Racal Electronics Ltd in the 1980s.\u003c\/p\u003e\n\u003cp\u003ePlease click on the following link for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/amateur-radio-equipment\" target=\"_blank\"\u003evintage radio ephemera.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\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\u003c\/p\u003e","brand":"SG Brown","offers":[{"title":"Default Title","offer_id":45132880150785,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/DSC09125_1.jpg?v=1715782318","url":"https:\/\/mullardantiques.co.uk\/en-us\/products\/sg-brown-head-phones-type-f-r4000-ohms-4","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}