{"product_id":"12ax7-ecc83-baldwin-selection-sylvania-raytheon-toshiba-very-strong-low-noise-mic-tubes-amplitrex-tested","title":"12AX7 ECC83 Baldwin Selection - Sylvania, Raytheon, Toshiba - Very Strong - Low Noise \u0026amp; Microphonics Tubes - AMPLITREX Tested","description":"\u003cp\u003e\u003cstrong\u003e12AX7 ECC83 Baldwin Selection - Sylvania, Raytheon, Toshiba - Very Strong - Low Noise \u0026amp; Mic Tubes - AMPLITREX Tested\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eThis \u003cspan class=\"s1\"\u003e\u003cb\u003emixed quartet of 12AX7 (ECC83) Baldwin Selection\u003c\/b\u003e\u003c\/span\u003e brings together three prestigious productions: \u003cspan class=\"s1\"\u003e\u003cb\u003eSylvania, Raytheon and Toshiba\u003c\/b\u003e\u003c\/span\u003e , all Baldwin branded and originally selected for professional applications.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cspan class=\"s2\"\u003eThis is a\u003c\/span\u003e \u003cb\u003eheterogeneous lot in terms of construction\u003c\/b\u003e \u003cspan class=\"s2\"\u003e, but united by one key element:\u003c\/span\u003e \u003cb\u003every high output, energetic sound response and marked musical character\u003c\/b\u003e \u003cspan class=\"s2\"\u003e.\u003c\/span\u003e It is not a matched set and was not created for laboratory symmetry, but for those seeking \u003cspan class=\"s1\"\u003e\u003cb\u003epersonality, push and lively sound behavior\u003c\/b\u003e\u003c\/span\u003e .\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAll tubes were individually tested on \u003cspan class=\"s1\"\u003e\u003cb\u003ethe AMPLITREX AT-1000\u003c\/b\u003e\u003c\/span\u003e and rated \u003cspan class=\"s1\"\u003e\u003cb\u003eVERY STRONG\u003c\/b\u003e\u003c\/span\u003e , with values well above average.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eGeneral response\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p3\"\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003eFull, dynamic and authoritative\u003c\/b\u003e\u003c\/span\u003e sound, with a feeling of immediate energy and great presence.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eThe high output translates into \u003cspan class=\"s2\"\u003e\u003cb\u003eheadroom, impact and a prompt response\u003c\/b\u003e\u003c\/span\u003e , particularly appreciated in musical circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMidrange:\u003c\/strong\u003e Rich and present, with a strong character that brings instruments and voices to the fore.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eEach valve retains its own personality, making the lot ideal for experimenting and shaping the circuit's behavior.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamics:\u003c\/strong\u003e Lively and responsive, with a response that follows touch and signal variation well.\u003c\/p\u003e\n\u003cp class=\"p4\"\u003e\u003cspan class=\"s3\"\u003eHere, character prevails over perfection:\u003c\/span\u003e \u003cb\u003ethese are valves that can be felt, not hidden\u003c\/b\u003e \u003cspan class=\"s3\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e🎸 \u003cstrong\u003eUse in Musical Instrument Amplifiers\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003eParticularly suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\u003cb\u003eguitar amplifiers\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003epositions\u003c\/span\u003e \u003cb\u003eV1, V2, gain stages, reverb\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003ethose looking for\u003c\/span\u003e \u003cb\u003edrive, character and immediate response\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003eblues, rock, jazz\u003c\/li\u003e\n\u003cli class=\"p1\"\u003eenergetic cleans and dynamic crunches\u003c\/li\u003e\n\u003cli class=\"p1\"\u003etimbre experimentation between different preamplifier positions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eNot recommended as \u003cspan class=\"s2\"\u003e\u003cb\u003ea phase inverter\u003c\/b\u003e\u003c\/span\u003e or where absolute symmetry is required.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eComposition of the lot\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2× Sylvania Baldwin – Long Gray Plates\u003c\/li\u003e\n\u003cli\u003e1× Raytheon Baldwin – Long Black Plates\u003c\/li\u003e\n\u003cli\u003e1× Toshiba Baldwin – Short Gray Plates, Red Tip\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p3\"\u003eSerigraphs partially worn by time, fully consistent with their age and original use.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTest Results:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eValve tested on \u003cstrong\u003eAMPLITREX AT-1000\u003c\/strong\u003e Tube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTest Conditions:\u003c\/strong\u003e \u003cspan\u003eVa = 250V ; Vg = -2V\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAverage 100%:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1600 ; Ia = 1.2 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTest Result:\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eValve 1:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1600 ; Ia = 1.2 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1400 ; Ia = 0.8 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eValve 2:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1700 ; Ia = 1.1 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1400 ; Ia = 0.8 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eValve 3:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1800 ; Ia = 1.4 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1300 ; Ia = 1.0 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eValve 4:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSection 1:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1900 ; Ia = 1.5 mA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSection 2:\u003c\/strong\u003e\u003cspan\u003e\u0026nbsp;\u003c\/span\u003eGm = 1700 ; Ia = 1.2 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cstrong\u003eAdditional Tests Performed:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eMicrophonics:\u003c\/strong\u003e Low. Tested and approved for use in guitar amplifiers, including V1.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBalance:\u003c\/strong\u003e The sections have a moderate misalignment; this tube is suitable for use in non-critical stages (input\/driver) and in guitar amplifiers. Not recommended as a phase inverter or where perfect balance between the sections is required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eOutput Quality:\u003c\/strong\u003e Excellent – Very strong and stable output, no fluctuations.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eShort circuits and GAS:\u003c\/strong\u003e Absent.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eConditions:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Vintage tubes - Tested and in perfect working order. Shipped in our custom box for optimal protection.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFunctionality:\u003c\/strong\u003e Fully functional.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAesthetic condition:\u003c\/strong\u003e Good – Writings \u003cmeta charset=\"utf-8\"\u003eeroded or partially eroded, but still legible. Valve body in good condition. See photos for details.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e -\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SYLVANIA, RAYTHEON, TOSHIBA","offers":[{"title":"Default Title","offer_id":55721810919772,"sku":"03198","price":99.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_f7896e72-fbaf-43a0-8812-cc7946afb9b1.jpg?v=1760426775","url":"https:\/\/vacuumtubestreasures.com\/en-hr\/products\/12ax7-ecc83-baldwin-selection-sylvania-raytheon-toshiba-very-strong-low-noise-mic-tubes-amplitrex-tested","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}