{"product_id":"ef86-6267-amperex-nos-valvo-plant-short-mesh-plate-halo-getter-made-in-germany-1960","title":"EF86 6267 NOS Amperex – Short Mesh Plate Halo Getter Tube Valvo Germany 1960","description":"\u003cp\u003e\u003cstrong\u003eEF86 ( 6267 ) AMPEREX NOS, Valvo Plant, Short Mesh Plate, Halo Getter, Made in Germany, 1960\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e \u003cstrong\u003eDescription:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"258\" data-end=\"566\" class=\"\"\u003e The \u003cstrong data-start=\"261\" data-end=\"294\"\u003eEF86 Amperex Short Mesh Plate\u003c\/strong\u003e , produced in \u003cstrong data-start=\"309\" data-end=\"354\"\u003e1960 at the Valvo factory in Germany\u003c\/strong\u003e , is an extremely balanced and quiet NOS version of this famous low-noise pentode, widely used in professional audio, high-end hi-fi and guitar tube heads.\u003c\/p\u003e\n\u003cp data-start=\"568\" data-end=\"888\" class=\"\"\u003e This version with \u003cstrong data-start=\"588\" data-end=\"625\"\u003eshort mesh plates\u003c\/strong\u003e and \u003cstrong data-start=\"628\" data-end=\"655\"\u003ehalo getters\u003c\/strong\u003e offers a transparent, controlled and musically neutral sound, with excellent definition throughout the audio range and a drier and more analytical tonal signature than the Mullard counterparts, but still pleasant and refined.\u003c\/p\u003e\n\u003cp data-start=\"890\" data-end=\"1069\" class=\"\"\u003e \u003cstrong data-start=\"890\" data-end=\"899\"\u003eBass\u003c\/strong\u003e : Linear and precise, with a quick and well-articulated response. It lacks the punch of the \"warmer\" versions, but it provides solidity and control even on revealing systems.\u003c\/p\u003e\n\u003cp data-start=\"1071\" data-end=\"1242\" class=\"\"\u003e \u003cstrong data-start=\"1071\" data-end=\"1079\"\u003eMids\u003c\/strong\u003e : Clear, focused, and very clean. Excellent reproduction of vocals and solo instruments, with a dry, uncolored tone, ideal for those seeking neutrality.\u003c\/p\u003e\n\u003cp data-start=\"1244\" data-end=\"1415\" class=\"\"\u003e \u003cstrong data-start=\"1244\" data-end=\"1252\"\u003eHighs\u003c\/strong\u003e : Extended and transparent, with a good level of fine detail, without grain or harshness. The balance in the high range is maintained even in highly reflective environments.\u003c\/p\u003e\n\u003cp data-start=\"1417\" data-end=\"1566\" class=\"\"\u003e \u003cstrong data-start=\"1417\" data-end=\"1429\"\u003eDynamics\u003c\/strong\u003e : Lively and responsive, with excellent management of microtransients and a response that makes the sound realistic and vivid even at low volume.\u003c\/p\u003e\n\u003cp data-start=\"1568\" data-end=\"1736\" class=\"\"\u003e \u003cstrong data-start=\"1568\" data-end=\"1582\"\u003eSoundstage\u003c\/strong\u003e : Well-structured, stable, and precise. The soundstage is clear, coherent, and correctly sized, with a typically German sense of order.\u003c\/p\u003e\n\u003cp data-start=\"1738\" data-end=\"2103\" class=\"\"\u003e The \u003cstrong data-start=\"1741\" data-end=\"1769\"\u003eEF86 Amperex Valvo Plant\u003c\/strong\u003e is an ideal tube for applications requiring \u003cstrong data-start=\"1825\" data-end=\"1881\"\u003emaximum silence, precision and timbral coherence\u003c\/strong\u003e , both in hi-fi and professional fields. Excellent in \u003cstrong data-start=\"1936\" data-end=\"1980\"\u003ephono preamps, microphone stages, line stages\u003c\/strong\u003e , but also in amplifiers such as the \u003cstrong data-start=\"2016\" data-end=\"2035\"\u003eVox AC15 or AC30\u003c\/strong\u003e , where you want to obtain a clean, detailed and stable response.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e \u003cstrong\u003eTest Results:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e Valve tested on \u003cstrong\u003eAMPLITREX AT-1000\u003c\/strong\u003e Tube Tester:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eTest Conditions:\u003c\/strong\u003e \u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eVa = 250V, Vg2 = 150V, Vg = -2V\u003c\/span\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eAverage 100%:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGm = 1800 ; Ia = 3.0 mA\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eTest Result:\u003c\/strong\u003e VERY STRONG\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003cstrong\u003eValve:\u003c\/strong\u003e Gm = 2200 ; Ia = 3.0 mA\u003c\/p\u003e\n\u003cdiv\u003e \u003cstrong\u003eAdditional Tests Performed:\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cstrong\u003eMicrophonics:\u003c\/strong\u003e Low. Tested and approved for use in hi-fi and guitar amplifiers.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cstrong\u003eOutput Quality:\u003c\/strong\u003e Excellent – ​​Very strong and stable output, no fluctuations.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e \u003cspan\u003e\u003cstrong\u003eShort circuits and GAS:\u003c\/strong\u003e Absent.\u003c\/span\u003e\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e \u003cstrong\u003eConditions:\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eCondition:\u003c\/strong\u003e NOS - New Old Stock - Tested and working - In aftermarket box.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eFunctionality:\u003c\/strong\u003e Fully functional.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eCosmetic condition:\u003c\/strong\u003e Excellent – ​​Perfectly preserved lettering, minimal signs of aging. See photos for details.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n \u003cstrong\u003eManufacturing Code:\u003c\/strong\u003e 8?3 D0F2 - D0F2 D →\u003cmeta charset=\"utf-8\"\u003e Valvo Hamburg - 0 (out of four digits) → 1960 - F → June - 2 → 2nd week of the month\u003cbr\u003e\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003ca rel=\"noopener\" title=\"Why our tubes are different – ​​the VTT protocol that improves sound, reliability and durability\" href=\"https:\/\/vacuumtubestreasures.com\/blogs\/notizie\/perche-le-nostre-valvole-sono-diverse\" target=\"_blank\"\u003eFind out why our valves are different →\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"AMPEREX","offers":[{"title":"Default Title","offer_id":54222926315868,"sku":"02853","price":6800.0,"currency_code":"ALL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0616\/3775\/5127\/files\/1_84d2f65a-8e54-491f-a37a-c65175d19196.jpg?v=1743084000","url":"https:\/\/vacuumtubestreasures.com\/en-al\/products\/ef86-6267-amperex-nos-valvo-plant-short-mesh-plate-halo-getter-made-in-germany-1960","provider":"Vacuum Tubes Treasures","version":"1.0","type":"link"}