{"product_id":"ecc81-12at7-mullard","title":"ECC81 (12AT7) Mullard","description":"\u003cdiv class=\"n6owBd awi2gc\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-hveid=\"CAIIAAgACAoQAA\" data-complete=\"true\"\u003e\n\u003cspan data-subtree=\"aimfl,mfl\"\u003eThe Mullard ECC81 (also known as the American \u003c\/span\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e12AT7\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e equivalent or British military \u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eCV4024\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e \/ \u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eM8162\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e) is \u003cmark class=\"b6AQX\" data-wiz-attrbind=\"class=H3bvM_t\/cFwyDc\" data-sfc-root=\"ep\" data-epip=\"\" data-ved=\"2ahUKEwjd9tv_2cWXAxUCXEEAHalNHZ0QuJAPegoIAggACAAIChAB\" data-complete=\"true\"\u003ea classic medium-impedance dual-triode vacuum tube designed originally for high-frequency (RF) and audio applications\u003c!--TgQPHd|||[[[null,null,null,null,null,null,null,null,null,null,null,null,[247864,null,0]]]]--\u003e\u003c\/mark\u003e.\u003cspan\u003e [\u003ca href=\"https:\/\/www.r-type.org\/exhib\/aai0246.htm\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.tubedepot.com\/products\/12at7-ecc81-mullard\"\u003e2\u003c\/a\u003e, \u003ca href=\"https:\/\/www.diyaudio.com\/community\/threads\/ecc81-or-cv4024.13406\/\"\u003e3\u003c\/a\u003e]\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\" data-sfc-inited=\"2\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"ZLzG0d ncoeY E8xBUb\" role=\"heading\" aria-level=\"3\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-wiz-attrbind=\"aria-level=H3bvM_13\/fLk2Md\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eKey Characteristics \u0026amp; Tone\u003c!--TgQPHd|||[[2,[null,null,null,null,null,null,null,null,null,null,null,null,[351768,null,0]],[],null,1]]--\u003e\n\u003c\/div\u003e\n\u003cdiv data-bfc=\"\" class=\"\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-ved=\"2ahUKEwjd9tv_2cWXAxUCXEEAHalNHZ0Qi4wTegoIAggACAAIExAA\" data-hveid=\"CAIIAAgACBMQAA\" data-complete=\"true\"\u003e\n\u003cul class=\"XSq4R KI3fJ\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-hveid=\"CAIIAAgACBMQAQ\" data-complete=\"true\"\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-hveid=\"CAIIAAgACBMQAg\" data-complete=\"true\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eSound Profile:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Renowned for delivering a warm, clean, and dynamic sound with smooth, open highs and rich overtones without excessive high-gain preamp harshness.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/www.watfordvalves.com\/product_detail.asp?id=630\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.watfordvalves.com\/product_detail.asp?id=4092\"\u003e2\u003c\/a\u003e, \u003ca href=\"https:\/\/www.tubedepot.com\/products\/12at7-ecc81-mullard\"\u003e3\u003c\/a\u003e]\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-hveid=\"CAIIAAgACBMQBw\" data-complete=\"true\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eMilitary Spec (CV4024):\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Many surviving Mullard ECC81 tubes are built to the ruggedized \u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eCV4024\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e specification supplied to the UK RAF and NATO forces. These feature a double-ribbed ladder plate anode structure and special copper plate supports designed to resist shock (up to 500g) and greatly reduce microphonics and noise.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/www.watfordvalves.com\/product_detail.asp?id=8271\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.watfordvalves.com\/product_detail.asp?id=630\"\u003e2\u003c\/a\u003e]\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-hveid=\"CAIIAAgACBMQDA\" data-complete=\"true\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eCommon Uses:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Used in vintage and modern hifi audio amplifiers, guitar amp phase inverters, reverb\/gain stages, and vintage broadcast gear.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/www.youtube.com\/watch?v=-bECCl1QkYM\u0026amp;t=306\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.watfordvalves.com\/product_detail.asp?id=4092\"\u003e2\u003c\/a\u003e, \u003ca href=\"https:\/\/www.watfordvalves.com\/product_detail.asp?id=630\"\u003e3\u003c\/a\u003e]\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/ul\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\" data-sfc-inited=\"2\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e\n\u003cdiv data-bfc=\"\" class=\"\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-ved=\"2ahUKEwjd9tv_2cWXAxUCXEEAHalNHZ0Qi4wTegoIAggACAAIFRAA\" data-hveid=\"CAIIAAgACBUQAA\" data-complete=\"true\"\u003e\n\u003chr class=\"s6NV4e\" data-sfc-root=\"ep\" data-epip=\"\" data-sfc-pl=\"|||[]\" data-complete=\"true\"\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\" data-sfc-inited=\"2\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e\n\u003cdiv data-bfc=\"\" class=\"\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-ved=\"2ahUKEwjd9tv_2cWXAxUCXEEAHalNHZ0Qi4wTegoIAggACAAIFhAA\" data-hveid=\"CAIIAAgACBYQAA\" data-complete=\"true\"\u003e\n\u003cdiv class=\"ZLzG0d ncoeY E8xBUb\" role=\"heading\" aria-level=\"3\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-wiz-attrbind=\"aria-level=H3bvM_28\/fLk2Md\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eComparison of Popular ECC81 \/ 12AT7 Variants\u003c!--TgQPHd|||[[2,[null,null,null,null,null,null,null,null,null,null,null,null,[351768,null,0]],[],null,1]]--\u003e\n\u003c\/div\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\" data-sfc-inited=\"2\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e\n\u003cdiv data-bfc=\"\" class=\"\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-ved=\"2ahUKEwjd9tv_2cWXAxUCXEEAHalNHZ0Qi4wTegoIAggACAAIGxAA\" data-hveid=\"CAIIAAgACBsQAA\" data-complete=\"true\"\u003e\n\u003cdiv class=\"Fv6NCb\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-ved=\"2ahUKEwjd9tv_2cWXAxUCXEEAHalNHZ0Q-q4QegoIAggACAAIGxAB\" data-hveid=\"CAIIAAgACBsQAQ\" data-complete=\"true\" data-sfc-inited=\"2\"\u003e\n\u003ctable class=\"NRefec\" data-animation-nesting=\"\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"cZCYO\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eVariant \/ Brand\u003c!--TgQPHd|||[]--\u003e\n\u003c\/th\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eOrigin \/ Type\u003c!--TgQPHd|||[]--\u003e\n\u003c\/th\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eNotable Features\u003c!--TgQPHd|||[]--\u003e\n\u003c\/th\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eTypical Tone \/ Application\u003c!--TgQPHd|||[]--\u003e\n\u003c\/th\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\n\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eMullard CV4024 \/ ECC81\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eUK (Mullard \/ Mitcham)\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eDouble-ribbed ladder plates, ruggedized military build, low microphonics\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eWarm, dynamic, clean highs, classic British vintage audio\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\n\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eGeneral Electric (GE) 6201 \/ 12AT7WB\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eUSA (GE 5-Star)\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eHigh-reliability industrial\/military grade, sturdy construction\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eNeutral, crisp, high durability, lower coloration\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003c!--TgQPHd|||[]--\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"cZCYO\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003e\n\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eJJ Tesla ECC81\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eSlovakia (Modern Production)\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eAvailable in standard and gold-pin variants\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-complete=\"true\"\u003eBalanced response, modern availability, budget-friendly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mullard","offers":[{"title":"Default Title","offer_id":67788518228047,"sku":null,"price":1500.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0669\/4354\/9519\/files\/images_47f4da7c-7d31-4aca-9db0-6a378d658805.jpg?v=1792399978","url":"https:\/\/theoldstockroom.com\/products\/ecc81-12at7-mullard","provider":"The Old Stockroom","version":"1.0","type":"link"}