{"product_id":"1930s-mullard-pm12a-metallised-screened-grid-valve-in-its-original-box","title":"1930s Mullard PM12A Metallised Screened Grid Valve In Its Original Box","description":"\u003ch1\u003e1930s Mullard PM12A Metallised Screened Grid Valve In Its Original Box\u003cbr\u003e\n\u003c\/h1\u003e\n\u003cp\u003eThis amazing collectible is a 1930s Mullard PM12A Metallised Screened Grid Valve In Its Original Box; where PM stands for Philips-Mullard. \u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eA nice display item for the office or radio shack!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is nearly 100 years old, has never been used and hasn't been tested. As a piece of radio history made by Mullard Radio Valve Co. Ltd, Nightingale Lane, Balham, London, it is being sold as a collectible for display only. According to \u003cem\u003eThe\u003c\/em\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cem\u003e History of the British Radio Valve to 1940, \u003c\/em\u003ethe valve was introduced in 1935.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eThis is an early version of the valve with a bakelite top cap. \u003c\/span\u003eThe cardboard box, with the cut out in the lid, is intact with scuffs and blemishes commensurate with age and storage. The colours have faded but are still legible.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOriginal Specification:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Mullard Radio Valve Co.Ltd \u003c\/li\u003e\n\u003cli\u003eType: Metallised Screened Grid Tetrode Valve PM12A (where A = high slope) with a top cap terminal\u003c\/li\u003e\n\u003cli\u003eMarked with the BVA logo\u003c\/li\u003e\n\u003cli\u003eBakelite Base: 4-Pin B4 with a single slot in each pin (split pin)\u003c\/li\u003e\n\u003cli\u003eFilament: \u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eVoltage 2.0 Volts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eCurrent ~0.18 amps \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli\u003eAnode Voltage 150 Volts\u003c\/li\u003e\n\u003cli\u003eFor High Frequency Amplification\u003c\/li\u003e\n\u003c\/ul\u003e\nPlease click on the following links for more \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/thermionic-valves-tubes\" target=\"_blank\"\u003evintage valves\u003c\/a\u003e and \u003ca href=\"https:\/\/mullardantiques.co.uk\/collections\/amateur-radio-equipment\" target=\"_blank\"\u003eradio ephemera\u003c\/a\u003e\u003cbr\u003e","brand":"Mullard","offers":[{"title":"Default Title","offer_id":44173627162881,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/1930s_Mullard_PM12A_Metallised_Screened_Grid_Valve_In_Its_Original_Box.jpg?v=1761572473","url":"https:\/\/mullardantiques.co.uk\/en-us\/products\/1930s-mullard-pm12a-metallised-screened-grid-valve-in-its-original-box","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}