Was always pleased with the NOS ones that the Tube Store provided. At the time Jon provided RCA and................. believe it was Sylvania, but I won't swear to that. In several years of use I never had one go bad. Always quiet and channels well matched. When I got my amp and found it was a newer one and did not use the 6922 I was disappointed. That did not last long. 12BH7A is a great tube.
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Glenn...
Canton Reference 9 Clearaudio SM Pro Focal Bathys JLA 10" Dominion Kuzma Stabi S w/MC & MM Magnepan 1,7i McIntosh MA8950 & MR88 Oppo 203 Roon Nucleus Rose Hifi RS150B Shunyata Gemini-4 Sony ST-A6B, TA-F6B, ST-J75 & PS-X75 Sorane SA1.2 & TA-1L Stillpoints LP1v2 WW Pt, Au & Ag
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