{"product_id":"12ax7-electro-harmonix","title":"12AX7 Electro-Harmonix","description":"\u003cdiv class=\"n6owBd awi2gc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-hveid=\"CAIIAAgACAwQAA\" data-complete=\"true\"\u003e\n\u003cspan data-subtree=\"aimfl,mfl\"\u003eThe \u003c\/span\u003e\u003cspan data-sfc-cp=\"\" data-sfc-root=\"c\" data-wiz-uids=\"WzPNXd_r\" data-complete=\"true\"\u003e\u003cspan class=\"\"\u003e\u003ca class=\"H23r4e\" rel=\"noopener\" data-ved=\"2ahUKEwjHqoDEvdOXAxXdS0EAHXwPKsAQy_kOegoIAggACAAIDBAB\" data-hveid=\"CAIIAAgACAwQAQ\" href=\"https:\/\/shop.ehx.com\/item\/12ax7eh\/\" target=\"_blank\"\u003eElectro-Harmonix 12AX7-EH \/ ECC83\u003c\/a\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[[\u0026quot;https:\/\/shop.ehx.com\/item\/12ax7eh\/\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;Electro\u0026quot;,\u0026quot;Electro-Harmonix 12AX7 • Ultra-low noise thanks to unique spiral filament which eliminates cathode-to-filament induced hum on certain amps • Best all-around choice and best value for 12AX7 • ECC83\/7025 equivalent • Many OEMs use relabeled Electro-Harmonix vacuum tubes in their amplifiers Tube Specs: http:\/\/shop.ehx.com\/catalog\/tubes-specs\/12AX7EH-SV.pdf Preamp Tube Country of Origin: RUSSIA Platinum Matching not available. Related Items Previous\u0026quot;,\u0026quot;https:\/\/encrypted-tbn1.gstatic.com\/images?q\\u003dtbn:ANd9GcS9S2RzlN7c8geEh1SsvbfHs29BV1NnYCdjWuIi-3ts-GFbpPhqRoBwvbUSr825XZHt5fgHZeMa61JDJZc\u0026quot;,\u0026quot;Electro-Harmonix\u0026quot;,\u0026quot;https:\/\/encrypted-tbn0.gstatic.com\/faviconV2?url\\u003dhttps:\/\/shop.ehx.com\\u0026client\\u003dAIM\\u0026size\\u003d128\\u0026type\\u003dFAVICON\\u0026fallback_opts\\u003dTYPE,SIZE,URL\u0026quot;,[[1792873305478471,4279261,3223981948],null,null,null,null,[[2,0,0,10]]],null,\u0026quot;e8898c4f-74d6-44fe-9741-fb5eea9968cd\u0026quot;]]--\u003e\u003c\/span\u003e is a \u003cmark class=\"b6AQX\" data-wiz-attrbind=\"class=WzPNXd_s\/cFwyDc\" data-sfc-root=\"c\" data-ved=\"2ahUKEwjHqoDEvdOXAxXdS0EAHXwPKsAQuJAPegoIAggACAAIDBAC\" data-complete=\"true\"\u003ehigh-gain, dual-triode vacuum tube manufactured in Saratov, Russia, by the New Sensor Corporation\u003c!--TgQPHd|||[[[null,null,null,null,null,null,null,null,null,null,null,null,[247864,null,0]]]]--\u003e\u003c\/mark\u003e. It serves as a direct replacement for standard 12AX7, ECC83, and 7025 preamp tubes.\u003cspan\u003e [\u003ca href=\"https:\/\/www.tonetubes.co.za\/12ax7\/ecc83.html\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.sweetwater.com\/store\/detail\/12AX7EH--electro-harmonix-12ax7-preamp-tube\/reviews\"\u003e2\u003c\/a\u003e, \u003ca href=\"https:\/\/shop.ehx.com\/item\/12ax7eh\/\"\u003e3\u003c\/a\u003e]\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\" data-sfc-cp=\"\" data-sfc-root=\"c\" 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=WzPNXd_12\/fLk2Md\" data-sfc-root=\"c\" data-complete=\"true\"\u003eKey Features \u0026amp; Design\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=\"c\" data-ved=\"2ahUKEwjHqoDEvdOXAxXdS0EAHXwPKsAQi4wTegoIAggACAAIFRAB\" data-hveid=\"CAIIAAgACBUQAQ\" data-complete=\"true\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\"\u003eSpiral Filament:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Features a unique spiral heater filament that counteracts and eliminates cathode-to-filament AC-powered hum.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/shop.ehx.com\/item\/12ax7eh\/\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.tonetubes.co.za\/12ax7\/ecc83.html\"\u003e2\u003c\/a\u003e]\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv data-bfc=\"\" class=\"\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-ved=\"2ahUKEwjHqoDEvdOXAxXdS0EAHXwPKsAQi4wTegoIAggACAAIFRAH\" data-hveid=\"CAIIAAgACBUQBw\" data-complete=\"true\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\"\u003eShort Plate Structure:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Helps reduce microphonics and unwanted feedback in high-gain guitar and audio amplifiers.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/blog.thetubestore.com\/review-electro-harmonix-12ax7\/\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.ehx.com\/tubes\/\"\u003e2\u003c\/a\u003e]\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv data-bfc=\"\" class=\"\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-ved=\"2ahUKEwjHqoDEvdOXAxXdS0EAHXwPKsAQi4wTegoIAggACAAIFRAN\" data-hveid=\"CAIIAAgACBUQDQ\" data-complete=\"true\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\"\u003eGain \u0026amp; Output:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Delivers a robust gain (around 90–100 μ) with an ultra-low noise floor and responsive overdrive characteristics.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/www.parts-express.com\/Electro-Harmonix-12AX7EH-Vacuum-Tube-072-865\"\u003e1\u003c\/a\u003e, \u003ca href=\"https:\/\/www.tonetubes.co.za\/12ax7\/ecc83.html\"\u003e2\u003c\/a\u003e]\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv data-bfc=\"\" class=\"\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-ved=\"2ahUKEwjHqoDEvdOXAxXdS0EAHXwPKsAQi4wTegoIAggACAAIFRAT\" data-hveid=\"CAIIAAgACBUQEw\" data-complete=\"true\"\u003e\n\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\"\u003e\u003cstrong class=\"rQesXe MPyX\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-complete=\"true\"\u003eGold Pin Option:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e An upgraded version (\u003cspan data-sfc-cp=\"\" data-sfc-root=\"c\" data-wiz-uids=\"WzPNXd_20\" data-complete=\"true\" data-sfc-inited=\"2\"\u003e\u003cspan class=\"\"\u003e\u003ca class=\"H23r4e\" rel=\"noopener\" data-ved=\"2ahUKEwjHqoDEvdOXAxXdS0EAHXwPKsAQy_kOegoIAggACAAIFRAV\" data-hveid=\"CAIIAAgACBUQFQ\" href=\"https:\/\/shop.ehx.com\/item\/12ax7ehg\/\" target=\"_blank\"\u003eElectro-Harmonix Gold 12AX7\u003c\/a\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[[\u0026quot;https:\/\/shop.ehx.com\/item\/12ax7ehg\/\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;Electro\u0026quot;,\u0026quot;Electro-Harmonix Gold 12AX7 Gold Pins Superior high gain \\\u0026quot;gold pins\\\u0026quot; Twin Triode short plate with ultra-low noise and detailed, musical tone. Excellent replacement\/upgrade for all circuits requiring 12AX7\/ECC83 types. • Ultra-low noise thanks to unique spiral filament which eliminates cathode-to-filament induced hum on certain amps • Gold plated pins for superior conductivity • ECC83\/7025 equivalent EH Gold tubes are all new designs and are of excellent quality. Many OEMs use relabeled EH Gold vacuum tubes in their amplifiers. If you want great sounding tubes at a very reasonable price, then Electro-Harmonix tubes should be on your list. Tube Specs: http:\/\/shop.ehx.com\/catalog\/tubes-specs\/12AX7EH%20gold.pdf Preamp Tube Country of Origin: RUSSIA Platinum Matching not available. Related Items Previous\u0026quot;,\u0026quot;https:\/\/encrypted-tbn2.gstatic.com\/images?q\\u003dtbn:ANd9GcS8N5Oa7ZL8hVRPMrq-byfMs0SOuAqA-rriLDriOp-pE7xsL54x-bliHOoQSllrv3_Ttvn0xn9D1BJJdZE\u0026quot;,\u0026quot;Electro-Harmonix\u0026quot;,\u0026quot;https:\/\/encrypted-tbn0.gstatic.com\/faviconV2?url\\u003dhttps:\/\/shop.ehx.com\\u0026client\\u003dAIM\\u0026size\\u003d128\\u0026type\\u003dFAVICON\\u0026fallback_opts\\u003dTYPE,SIZE,URL\u0026quot;,[[1792873305478471,4279261,3223981948],null,null,null,null,[[2,0,0,23]]],null,\u0026quot;680c63f1-ace1-4663-86b6-ad9332ffd250\u0026quot;]]--\u003e\u003c\/span\u003e) features gold-plated pins for improved conductivity and corrosion resistance.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e [\u003ca href=\"https:\/\/shop.ehx.com\/item\/12ax7ehg\/\"\u003e1\u003c\/a\u003e]\u003c\/span\u003e\n\u003c\/div\u003e","brand":"Electro-Harmonix","offers":[{"title":"Default Title","offer_id":67861909110863,"sku":null,"price":480.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0669\/4354\/9519\/files\/images_0da3dae1-474a-46e8-8226-c292690ac60b.jpg?v=1792873250","url":"https:\/\/theoldstockroom.com\/products\/12ax7-electro-harmonix","provider":"The Old Stockroom","version":"1.0","type":"link"}