{"type":"product","schema_version":"1.0","item_id":"100861623286","canonical_url":"https://tw.bid.yahoo.com/item/100861623286","title":"美國TUNG-SOL原廠製6AU5-GT功率放大用五極真空管四支，單端出力4W，噴黑碳屏，甜美豐潤；高互導值，反應快速。","subtitle":null,"condition":"全新品","currency":"TWD","observed_at":"2026-04-25T19:10:21.685Z","current_price":1800,"original_price":null,"stock_status":"low_stock","available_quantity":1,"sold_quantity":0,"seller":{"id":"Y5745547719","name":"Y5745547719","positive_rate":null,"rating_count":null},"images":[{"url":"https://img.yec.tw/ob/image/335a9732-1b4d-46c7-b7b0-b4e7a915620a.jpg","role":"main","alt":"商品主圖","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/b1711196-0d36-4e8e-9ce1-d740de3bafc4.jpg","role":"detail","alt":"商品圖片 2","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/97165042-6c09-4999-a2a9-d6b87fcad27f.jpg","role":"detail","alt":"商品圖片 3","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/3bb778b6-089f-4135-9677-57c27fefaec5.jpg","role":"detail","alt":"商品圖片 4","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/36306c62-a89e-4d79-9bbb-7e655733e3ee.jpg","role":"detail","alt":"商品圖片 5","width":null,"height":null},{"url":"https://img.yec.tw/ob/image/754f804e-4700-45fd-aaa2-1292faa22ef6.jpg","role":"detail","alt":"商品圖片 6","width":null,"height":null}],"description":"這四支一套由美國TUNG-SOL真空管大廠所產製的6AU5-GT，原始設計用於電視機內的水平導向放大電路，在既設的工作條件下，具有低屏壓與高屏流的小內阻特性，意即高互導值，所以時間常數小，得以在高頻作業環境下，將相位失真降至最低。\n\n說起TUNG-SOL，在膽Hi-Fi的熱圈裏，應是無人不知，無人不曉的一線品牌。其生產的諸多管型當中，最為玩家所追捧的葫蘆型6550，正是出自其手筆。該管穩定的大電流高功率輸出特性，在過去廣受業界好評，故為許多經典銘機爭相追捧使用。它也是繼廿年前日本人重開WE西電300B產線，進行短期小量復刻後，唯一再由俄羅斯所直接冠名重啟的特例。TUNG-SOL的好，不說您也知道。\n\n個人始終相信材料特性是一切的根本。加工材質的純淨、合理的配比，與精度的嚴格把關，幾乎等於決定了產品品質。當然，各家大廠也都有各自合於指標的絕技。這也正是為何GE的管子聽來多是音色清麗，空間感好；而SYLVANIA的則醇厚濃郁，沁人心脾；暨RCA的中規中矩，帶點甜味，久聽不噪耳....等等。也正是如此多樣的繽紛呈現，提供了玩家很多的好選擇。在此興味當中，固然創造了不少神話，也有些著實挨了幾馬扎。\n\n依據1955年原廠的公佈數據與後續估選，提供三個單端建議工作點如下。第一組則可酌量調整輸出負載至2KΩ，第二、三組則為標準的市售規格。\n\n一、屏壓115V，簾柵壓175V，偏壓-20V，屏流60mA，簾柵流6.8mA，負載1.9KΩ，出力3.45W。\n\n二、屏壓200V，簾柵壓150V，偏壓-25V，屏流30mA，簾柵流10mA，負載7KΩ，出力3.15W。\n\n三、屏壓200V，簾柵壓150V，偏壓-24V，屏流40mA，簾柵流10mA，負載5KΩ，出力4W。\n\n值得一提的是，此組管的屏極板均經過噴碳處理，音色走甜美豐盈路線，這也是最傳統的製作工序，與黑膠的古早風味格外契合。此外，屏極板的肋狀圓弧架構，與銘管300B的式樣相仿，在音樂細節的刻畫上，也必然更加的韻潤有致。\n\n好物推薦，精品無虞，高CP值嚴選，僅此一套特供分享，喜歡它們的朋友，歡迎購製體驗，享受快意人生！","shipping_methods":[{"name":"郵局掛號","fee":0,"currency":"TWD"},{"name":"7-ELEVEN取貨付款","fee":0,"currency":"TWD"},{"name":"宅配/貨運","fee":0,"currency":"TWD"},{"name":"離島配送","fee":0,"currency":"TWD"}],"lowest_shipping_fee":null,"payment_methods":["ATM轉帳","7-ELEVEN取貨付款"],"category_id":"2092107940","category_name":"真空管擴大機","breadcrumb":[{"id":"2092101502","name":"家電與影音視聽","url":"/tw/%E5%AE%B6%E9%9B%BB%E8%88%87%E5%BD%B1%E9%9F%B3%E8%A6%96%E8%81%BD-2092101502-category.html"},{"id":"2092105885","name":"影音/視聽/MP3","url":"/tw/%E5%BD%B1%E9%9F%B3-%E8%A6%96%E8%81%BD-MP3-2092105885-category.html"},{"id":"2092075249","name":"擴大機","url":"/tw/%E6%93%B4%E5%A4%A7%E6%A9%9F-2092075249-category.html"},{"id":"2092107940","name":"真空管擴大機","url":"/tw/%E7%9C%9F%E7%A9%BA%E7%AE%A1%E6%93%B4%E5%A4%A7%E6%A9%9F-2092107940-category.html"}],"view_count":2,"watch_count":5}