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Questions about tubes and gear that glows. FAQ

RE: 6SL7

"in general, is there a better chance that the short plate 6SL7's wont be microphonic?"

Yes, in general the smaller the plate area the less likely the tube will be microphonic.

Of the "normal" type 6sl7 "round" plate tubes, I find the short bottle GE 6sl7 to be the least microphonic.

You might look for the 6188, shown above, with ladder type box plates kind of like a 12ax7.

Those should be even less microphonic.

There is also a 6sl7 with real short black plates. See link.

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