Auction is for one Platinum Matched Pair (2 tubes) 12AX7 Telefunken ECC83
Smooth plates, RARE two big side holes, diamond bottom, the same Berlin tube plant codes.
Pull outs Tested 100% of NOS values. Very nice, perfectly balanced tubes with a lot of life left in them.
Tested also for hum and microphonics in RIAA preamp.
They are tested with 250V on anodes and -1.5V on grids, 100% is 2.15 mA, they test (2.2/2.1) (2.2/2.2) mA
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I collect tubes and tube gear for more then 35 years and I start to sell recently, please be sure to check my other items and visit my store for more rare NOS tubes and parts.
I have more than 250000 NOS tubes in stock and just small part is listed here, if you are interested in any specific tube or part, please send me message.