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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: RE: Question on testing 12AX7s - gm vs. mA posted by Tre' on April 5, 2017 at 16:25:08:
That means lowering the grid bias to around .8-1 V. The gm goes way up, to around 1800.
(I can make any poor performing tube read high that way. )
Pete
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Follow Ups
- RE: Question on testing 12AX7s - gm vs. mA 539C - PeterI 08:35:13 04/06/17 (1)
- RE: Question on testing 12AX7s - gm vs. mA 539C. The sound test and Gm. - Mechans 11:18:49 04/08/17 (0)
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