In Reply to: RE: EF39 as 300B driver... posted by Aldovan on June 13, 2015 at 16:37:23:
The EF37A is what I use as a driver in my 91A clone. It's a great sounding tube.
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Follow Ups
- RE: EF39 as 300B driver... - vinnie2 18:21:07 06/13/15 (0)