CK722
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I have 11 (5 pairs+1) 6H23 / 6922 Type 3 Platinum grade tubes for sale. All of them were Cryogenically Treated. I bought these for my Zen Ultra I no longer have. None of these were used for more than a few hours, some not at all. I have tested all of them on my MaxiPreamp tube tester. All of them test with low noise and NOS readings. When I get a chance I will list the tested gain of each triode or if interested let me know and I can send you the readings.
Asking $150 for all 11 tubes.
“The NOS 6H23n-EB tube is a very noticeable upgrade over the Sovtek 6922 tube and Electro Harmonix 6922 tube. They are incredibly durable and can handle the punishment of modern pre-amps, including those made by Audible Illusions. They excel in detail, speed, and soundstage. The highs have air and sound natural. This premium Russian built NOS 6922 tube replacement is also known by various Russian names, including 6N23n-EB, 6H23N-EB and 6N23. These are the hard to find NOS (new old stock) of premium quality in both sound and construction. The 6922 / 6DJ8 tube type is equivalent to the European ECC88 / E88CC tube and can be used in any 6922, 6DJ8 or ECC88 circuit.”
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