12ax7 ecc83 Mullard 一套三支英國貓乸1970年代製造細圓環短灰屏有盒配對 quad set short plate small round getter matched strong

Price per trio : 價錢一套三支 : $1700
Price per tube : 價錢一支：$600

品牌：英國大盾貓乸
型號：12ax7 / Ecc83
類別：細圓環銅柱短灰屏
型號: I63 B1A4, I63 B2A5, I63 B3L2
新淨：90％
出產地 ：英國，Blackburn 工廠
出產日期：1971， 1972，1973
特點：有貓乸盒，運作正常
交收地點：佐敦，尖沙咀，柯士甸地鐵站, 順豐到付

Brand：Mullard
Model：12ax7 / Ecc83
Type：short plate copper post small round getter
Code: I63 B1A4, I63 B2A5, I63 B3L2
Condition ：90％
Manufacture location: Great Britain, Mullard Blackburn Factory
Manufacture date: 1971， 1972，1973
Remark：have original box, perfect working condition
Trade: Jordan, Tsim Sha Tsui, Austin MTR station, SF express (pay by buyer)

膽入盒之前會放在膽機內測試功能和保證運作一切正常，然後拍照和发送。
Tubes will be installed and tested in a tube preamp for functionality and no shorts before packing into box. Photos of the functioning tube will be then sent.