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In Reply to: RE: Here is the thing Mendel posted by Mendel on April 8, 2016 at 07:41:07:
Unstable bias could indicate that the grid resistor is not small enough to keep the tube in a stable condition.
And a vendor that "don't have a clue" is not uncommon.
Why not open up and examine the value of the grid resistor ( or check the schematics) so we could end this (sub)discussion.
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Follow Ups
- RE: Here is the thing Mendel - tubular.well 08:25:28 04/08/16 (1)
- RE: Here is the thing Mendel - RhythmDevil 11:21:50 04/09/16 (0)