{"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":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/products\/DSC09504_75a79303-8296-4ee7-a130-72d2cb8d9726.jpg?v=1605018331","url":"https:\/\/mullardantiques.co.uk\/en-us\/products\/1920s-ferranti-af5-large-audio-frequency-transformer","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}