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My phono stage uses a 6922 and a 12AX7. Are there any new production 6922's that are as good as NOS or old tubes?Thanks,
Dave
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New made 6922 better than NOS? Which tubes are that supposed to be?
I tested thousands of NOS and new made 6922. This is the most difficult tube there is.
Really terrible I found JJ, they seemed not burned in to me. The ones I had changed their plate current in an unacceptable way within 48 hours.
EHX is not good also. Some 80% of the ones I was send, were a bit low on plate current. When the avarage is 15mA, you open a box of 100pcs, and they are average 13mA, whereas even the questionable 11mA ones, they make troube when you want to send them back for replacement. In the end, they refused to give me even simples test criteria, so they refused to tell me how I can do incoming inspection. They only sell good tubes, they told me, and if I don't like that I should't buy them.
Or, Chinese 6922, are these supposed to be better than NOS?
The JJ tube is warm, but some people think they are grainy towards the top. That leaves you with China and Russia. I don't know anybody using Chinese 6922. In Russia the best ones are made by Reflektor, and are sold three ways.
The Electro Harmonix, which is great, measures well, with a warm presentation. The Gold Lion which is in essence the same tube from the same factory, but supposedly better tolerances. They perform the same to me.
The older Reflektor, commonly referred to as a 6H23-EB. It is quieter and more durable than the EH and Gold Lion tube in tough situations. It has more of a "straight line" sound. Not quite as warm. But is the best choice (really one of the only choices) for Audible Illusions gear.
There is still a ton of NOS available. In a phono stage it would be a good idea to go somewhere that tests them. One choice that is superb, quiet, and not too expensive is the Tungsram.
If you can afford it, there was a batch of perfect Telefunken E88CC available that will never exist again. That is the best that I know of. If you want a softer top end and rounder bass, try an Amperex 7308. Excellent tube.
It would be good to know what gear it's going in.
"The Electro Harmonix, which is great, measures well, with a warm presentation."While you describe your impression of the EH tube as "warm" that is not a widely held view based on what I read and hear. My own opinion is the opposite. Yes, maybe compared to the older Sovtek branded 6922 the EH is "warm", but that's about it IMHO. That's not to say it isn't a very good tube, and the added bit of warmth as compared to the older Russian 6922 stuff is indeed most welcome.
"The Gold Lion which is in essence the same tube from the same factory, but supposedly better tolerances."
At least as compared to the EH, in my experience the Genalex tend to have closer Gm and cathode current match between sections.
One of our fellow inmates was able to find out from NS that the cathode melt on the Genalex is different/better than the EH. Again IMHO that is not a small difference.
Edits: 04/23/14
Based on my recent comparisons I could be easily be persuaded to believe the Sovtek and EH are identical, there was not much light between them even though the EH was the gold pins version, but EH same as the GL ... No way!
Never trust an Atom, they Make Up everything!
Caveat, implicit, indeed, near explicit in my last post: beware substitutions. For example, the Ebay item identified in this thread is a Russian 6N1P, with the rocket logo, from Voskhod. This manufacture of the 6N23P may simply be substituted for a 6922, but the 6N1P may not. As one online seller in my country (he supplies among others, well known guitarists) points out online: ‘[The 6N1P] is similar to the 6922 family of valves but the main difference is that the filament current is 0.55 A of the 6N1P-VI compared with 0.36 A of the ECC88/6922 type. So if you are doing this substitution it is at your risk and I would also consult the manufacturer of you equipment.’ Do your homework before you commit. Avoid potentially costly and damn frustrating mistakes.
Edits: 04/22/14
Check these out! They're not new production, they're NOS! And if they are 6N23-EB, like they look, they are super clean! Basically a 6922, but not as steril! And the price is great!!
Also JJ makes a good new production tube! E88CC,..supposed to be a SEIMANS copy!
like and/or dislike about the sound?
Don’t wish to sound churlish, but such a thing has been discussed on this forum seemingly ad nauseam. For example, just scroll down the Tubes Asylum listings and lo and behold “Gold Lion E88CC” thread. Search and you shall, surely, find.
Edits: 04/20/14
Thanks.I didn't know E88CC is the same as 6922.
Now, your generosity is making me feel a little guilty that my initial response to your posting was not sufficiently liberal.
You may have already started to build up your understanding of vacuum tubes, their nature, types, manufactures and so forth, so that you might now be aware that in many, or some, but not all applications, a 6DJ8 or a ECC88 or a 6N23P may be substituted. If you are not yet acquainted might I recommend Duncan’s Amp Pages in addition to working your way through relevant postings on this website.
He is an AA sponser at this site. Honest fellow and tested tubes. Good on advise.
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