{"product_id":"nos-brimar-12ax7-ecc83-cv4004","title":"(NOS) Brimar 12AX7 \/ ECC83 \/ CV4004","description":"\u003cdiv class=\"ZLzG0d ncoeY E8xBUb\" role=\"heading\" aria-level=\"3\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-wiz-attrbind=\"aria-level=BLdPsf_16\/fLk2Md\" data-sfc-root=\"ep\" data-epip=\"\"\u003eKey Characteristics \u0026amp; Tonal Qualities\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=\"2ahUKEwjNrYuHicaXAxXnUEEAHYROM5EQi4wTegoIAggACAAIExAA\" data-hveid=\"CAIIAAgACBMQAA\"\u003e\n\u003cul class=\"XSq4R KI3fJ\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-hveid=\"CAIIAAgACBMQAQ\"\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-hveid=\"CAIIAAgACBMQAg\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eTonal Profile:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Brimar 12AX7 and ECC83 tubes are typically prized for a brighter, more open top-end response compared to mid-heavy vintage alternatives like Mullard, while still offering a lush and dynamic mid-range.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/www.ebay.com\/shop\/brimar-ecc83?_nkw=brimar+ecc83\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.youtube.com\/watch?v=OPAIUICJuEQ\u0026amp;t=1\"\u003e2\u003c\/a\u003e, \u003ca href=\"https:\/\/www.ebay.com\/itm\/356947724763\"\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\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eConstruction:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Vintage variants often feature long or short black plates with square or ring getters manufactured in England during the 1950s and 1960s.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/www.ebay.com\/shop\/brimar-ecc83?_nkw=brimar+ecc83\"\u003e1\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\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eModern Production:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e New-production and reissue options are also available through \u003cspan data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-wiz-uids=\"BLdPsf_1t\" data-sfc-inited=\"2\"\u003e\u003cspan class=\"\"\u003e\u003ca class=\"H23r4e\" rel=\"noopener\" data-ved=\"2ahUKEwjNrYuHicaXAxXnUEEAHYROM5EQy_kOegoIAggACAAIExAN\" data-hveid=\"CAIIAAgACBMQDQ\" href=\"https:\/\/brimaruk.com\/product\/brimar-tp-12ax7\/\" target=\"_blank\"\u003eBrimar Thermionic Products\u003c\/a\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[[\u0026quot;https:\/\/brimaruk.com\/product\/brimar-tp-12ax7\/\u0026quot;,null,null,[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[{\u0026quot;1218\u0026quot;:[16,null,null,null,[1]]}]],16,null,\u0026quot;Brimar TP 12AX7 - Brimar Thermionic Products - Official Site\u0026quot;,\u0026quot;Product: Brimar TP 12AX7 Double Triode \/ ECC83 valve (SKU: BTP-12AX7, Price: £22.50). Specifications: Long plate, spiral filament, robust dual\/double triode design, B9A base, high gain. Applications: Musical instrument amplifiers, pre-amp applications. Features: Smooth bite, provides more gain than predecessors, functionally similar alternative ECC83 offers slightly warmer performance.\u0026quot;,\u0026quot;https:\/\/encrypted-tbn2.gstatic.com\/images?q\\u003dtbn:ANd9GcTTHsU5b5hRs689OU6K3wffVSaUnVyQ9lmq4HdKmIyQ00EgjzH72ObBuhZ0sO8xABWFF0xZtbF5AqZ7aAg\u0026quot;,\u0026quot;Brimar Thermionic Products\u0026quot;,\u0026quot;https:\/\/encrypted-tbn2.gstatic.com\/faviconV2?url\\u003dhttps:\/\/brimaruk.com\\u0026client\\u003dAIM\\u0026size\\u003d128\\u0026type\\u003dFAVICON\\u0026fallback_opts\\u003dTYPE,SIZE,URL\u0026quot;,[[1792412542490317,4280551,2436058756],null,null,null,null,[[2,0,0,20]]],null,\u0026quot;58e6a5d4-780b-40ad-b8d5-2540abb252ab\u0026quot;]]--\u003e\u003c\/span\u003e, which continues to craft high-gain pre-amp valves.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/brimaruk.com\/product\/brimar-tp-12ax7\/\"\u003e1\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-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=\"2ahUKEwjNrYuHicaXAxXnUEEAHYROM5EQi4wTegoIAggACAAIFhAA\" data-hveid=\"CAIIAAgACBYQAA\"\u003e\n\u003cdiv class=\"ZLzG0d ncoeY E8xBUb\" role=\"heading\" aria-level=\"3\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-wiz-attrbind=\"aria-level=BLdPsf_26\/fLk2Md\" data-sfc-root=\"ep\" data-epip=\"\"\u003eApplications\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 data-bfc=\"\" class=\"\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-ved=\"2ahUKEwjNrYuHicaXAxXnUEEAHYROM5EQi4wTegoIAggACAAIGRAA\" data-hveid=\"CAIIAAgACBkQAA\"\u003e\n\u003cul class=\"XSq4R KI3fJ\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-hveid=\"CAIIAAgACBkQAQ\"\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-hveid=\"CAIIAAgACBkQAg\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eGuitar Amplifiers:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Used in V1 and preamp stages to inject a smooth bite and articulate high-frequency response.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/brimaruk.com\/product\/brimar-tp-12ax7\/\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.youtube.com\/watch?v=OPAIUICJuEQ\u0026amp;t=1\"\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=\"CAIIAAgACBkQBw\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eHi-Fi \u0026amp; Studio Preamps:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Utilized in audiophile equipment and vintage broadcast gear for low microphonics and a warm, dynamic sound stage.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/www.ebay.com\/itm\/356947724763\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.ebay.com\/shop\/brimar-ecc83?_nkw=brimar+ecc83\"\u003e2\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-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=\"2ahUKEwjNrYuHicaXAxXnUEEAHYROM5EQi4wTegoIAggACAAIGhAA\" data-hveid=\"CAIIAAgACBoQAA\"\u003e\n\u003cdiv class=\"Fv6NCb\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-ved=\"2ahUKEwjNrYuHicaXAxXnUEEAHYROM5EQ-q4QegoIAggACAAIGhAB\" data-hveid=\"CAIIAAgACBoQAQ\" 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=\"\"\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eOption Type\u003c!--TgQPHd|||[]--\u003e\n\u003c\/th\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eBest Suited For\u003c!--TgQPHd|||[]--\u003e\n\u003c\/th\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eKey Sound Trait\u003c!--TgQPHd|||[]--\u003e\n\u003c\/th\u003e\n\u003cth class=\"iry6k\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eAvailability\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=\"\"\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003e\n\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eVintage \/ NOS Brimar 12AX7 \/ ECC83\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=\"\"\u003eCollectors \u0026amp; vintage guitar\/hi-fi purists\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eBright top end, rich British character, dynamic response\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eRare \/ Found via secondary markets (e.g., \u003cspan data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-wiz-uids=\"BLdPsf_38\"\u003e\u003cspan class=\"\"\u003e\u003ca class=\"H23r4e\" rel=\"noopener\" data-ved=\"2ahUKEwjNrYuHicaXAxXnUEEAHYROM5EQy_kOegoIAggACAAIGhAC\" data-hveid=\"CAIIAAgACBoQAg\" href=\"https:\/\/www.hifishark.com\/search?q=Brimar+12AX7\" target=\"_blank\"\u003eHifiShark\u003c\/a\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[[\u0026quot;https:\/\/www.hifishark.com\/search?q\\u003dBrimar+12AX7\u0026quot;,null,null,[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[{\u0026quot;1218\u0026quot;:[16,null,null,null,[1]]}]],16,null,\u0026quot;Used Brimar 12AX7 for Sale | HifiShark.com\u0026quot;,\u0026quot;Used Brimar 12Ax7 for sale on 400+ second hand hifi sites \\u0026 shops. Use Hifi Shark to monitor pricing and global availability.\u0026quot;,\u0026quot;https:\/\/encrypted-tbn0.gstatic.com\/images?q\\u003dtbn:ANd9GcT5o-elYMMGBzpJR6lYeTK3fRb4iOtxPFRPbzqZWZekJBR5yPa1nFbK_ICVIoNwgm48XDeGkTgtLfcaTjo\u0026quot;,\u0026quot;HifiShark\u0026quot;,\u0026quot;https:\/\/encrypted-tbn0.gstatic.com\/faviconV2?url\\u003dhttps:\/\/www.hifishark.com\\u0026client\\u003dAIM\\u0026size\\u003d128\\u0026type\\u003dFAVICON\\u0026fallback_opts\\u003dTYPE,SIZE,URL\u0026quot;,[[1792412542490317,4280551,2436058756],null,null,null,null,[[2,0,0,27]]],null,\u0026quot;3fb18288-9fd9-4ec8-9f6b-e695f1a5db46\u0026quot;]]--\u003e\u003c\/span\u003e)\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=\"\"\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003e\n\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eBrimar TP 12AX7 (Modern)\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=\"\"\u003eGuitar and high-gain pre-amp applications\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eSmooth bite, higher gain structure\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eAvailable direct via \u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eBrimar Thermionic Products\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\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=\"\"\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003e\n\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eBrimar TP ECC83 (Modern)\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=\"\"\u003eAudiophile hi-fi preamps (warm audio)\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eNeutral gain character, soft anode design, warm tone\u003c!--TgQPHd|||[]--\u003e\n\u003c\/td\u003e\n\u003ctd class=\"Vk1lqb\" colspan=\"undefined\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\"\u003eAvailable direct via \u003cspan data-sfc-cp=\"\" data-sfc-root=\"ep\" data-epip=\"\" data-wiz-uids=\"BLdPsf_3n\" data-sfc-inited=\"2\"\u003e\u003cspan class=\"\"\u003e\u003ca class=\"H23r4e\" rel=\"noopener\" data-ved=\"2ahUKEwjNrYuHicaXAxXnUEEAHYROM5EQy_kOegoIAggACAAIGhAD\" data-hveid=\"CAIIAAgACBoQAw\" href=\"https:\/\/brimaruk.com\/product\/brimar-tp-ecc83m\/\" target=\"_blank\"\u003eBrimar Thermionic Products\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Brimar","offers":[{"title":"Default Title","offer_id":67791279784015,"sku":null,"price":1650.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0669\/4354\/9519\/files\/download_88026ca1-5e0d-49a1-a8f0-2ac53dac404e.webp?v=1792412538","url":"https:\/\/theoldstockroom.com\/products\/nos-brimar-12ax7-ecc83-cv4004","provider":"The Old Stockroom","version":"1.0","type":"link"}