Originally Posted by Sanlitun
There was a lot of talk about these tubes in the old thread. I am a Telefunken junkie and I bought a pair of them out of curiosity and they had unusual green labels and bent pins (on the left in the first pin)
The stories I heard about these tubes (U2108604f and U3218104) were worthy of a cloak and dagger screenplay, I seriously considered writing a short story on the tube biz for a while.
One of the reasons I gave up my Lyr and have not been running tubes for a while was that it was nearly impossible to find genuine NOS tubes of the better brands. A couple of my best tubes blew out in the same month and I just couldn't bear to put the effort again into finding replacements for them. They are by any measure of the word extinct.
If I could be certain 100% that these tubes were the real deal I would buy a box as an investment without thinking twice about it. Despite their condition they did sound quite good though.
Did you buy those E88CCs from upscale as NIB?
I've had a beautiful pr of Siemens CCa's burn out on me years ago. And a Philps Miniwatt. I feel your pain. Back then the CCa's could be bought for $200 a pr - now they're $400+. So I had read about these Voskhod Rocket 6n23p's on AA, so I tried to find them, they were impossible to find. Until a guy from Fl listed some on Audiogon $35 for 1980s. I bought a pr. They were pretty good. I ran those 8 hours a day for three years, without issue. Then I bought the Lyr and came across this thread I began revisiting them. Discovering the Russian dealers on ebay, that began a long journey. Now as I look back, it was serendipity. As I discovered better and better 6n23p's, I got very interested and focused. The HG's have been transformational to my audio experience. And as of today I've never had a 6n23p burn out on me...running them 24/7 in my two audio amps. They seem quite durable, of course if they truly are NOS testing to start with.
PS Even the date printing seems much more durable on the Russians then the European brands. It seems they sort of etched it into the glass, where the Euros are kinda weakly painted on. I've never have come across a 6n23p I couldn't read - although some are faint they still can be read under a bright light. I have seen many 6922s, 12ax7's, 12au7's where the print is just gone.Edited by rb2013 - 6/14/14 at 9:12am