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This was boxed a number of ways. They currently come in Electro Harmonix boxes, but we've also had them branded Sovtek, or with the original military markings calling them a 6H23. What counts is the sound, which is excellent. They are slightly relaxed... just a smidge warmer than the Type 3. If you have a Sonic Frontiers or ARC they will help you have a more palpable midrange. Will also alleviate some of that harshness found in some of those 90's vintage Sovteks with the silverish plates.
This tube and the 6922 / 6H23 Type 3 are the only 6922 tubes we recommend using in Audible Illusions, CAT, and other troublesome preamps. Except the Matsushita 7DJ8 / PCC88 on our website. While I have them I suggest the Matsushita. So organic you'll want to grow pot. Do a search under PCC88 or look in the 6922 category and it comes up. The Matsushita PCC88 is the greatest find I have made in years.
So, let's see what we've learned. Russian 6922 Type 2 are warm, Type 3 are more vivid, and Matsushita PCC88 make you want to break out a bong pipe. You decide.
Platinum grade - The best of the best. Lowest noise and microphony with the tightest triode balance we have available. This is typically 10% or tighter, but may be higher depending on available stock.
Gold grade - Low noise and microphonics with a triode balance typically between 15% and 20%, but may be higher depending on available stock.
Driver grade - Lowest noise but not the lowest in microphony. Triode balance will be similar to Gold grade.
This grade is only suitable for use in the driver stage of an amplifier, or the output/buffer stage of a DAC or CD Player.
If you have a preamp or phonostage, you need at least Gold grade.
Click here for a more in depth discussion on how we grade tubes.
Price includes matching in any quantity you need at no extra charge.