Magnum Dynalab MD-108T tubes


Member Sponsor
Oct 5, 2012
I use (and enjoy) MD 108T for quite some time but I think it's time to change tubes. MD stock "CryoValve" 6922/ECC88 should be the first choice but based on a review (by Robert H. Levi) in Positive Feedback (issue 22) that suggested GE or RCA 5751, I'm thinking about other possibilities too. Any Magnum Dynalab users here with tube rolling experiences?


Member Sponsor & WBF Founding Member
Apr 21, 2010
Are you serious about replacing a 6922 with a 5751? Did somebody tell you that would actually work in the MD-108T?

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