In Reply to: RE: Eimac tetrode verses pentode in triode conection. posted by PakProtector on April 11, 2014 at 03:31:52:
Gday Douglas
have you tried the cheaper (currently) 4d21 tube to compare?
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Follow Ups
- RE: Eimac tetrode verses pentode in triode conection. - amnesiac 13:14:51 04/11/14 (1)
- RE: Eimac tetrode verses pentode in triode conection. - PakProtector 10:04:43 04/19/14 (0)