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In Reply to: Changing the Gain posted by TomWh on March 16, 2017 at 07:08:49:
Some tubes are made with a control grid helix that varies in pitch. Remote cutoff pentodes associated with AGC are pretty common. In triodes, the 6ES8 comes to mind.
The mu varies with the amount of bias voltage applied. The association with AGC should be obvious.
Eli D.
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Follow Ups
- RE: Changing the Gain - Eli Duttman 09:24:49 03/16/17 (3)
- RE: Changing the Gain - TomWh 10:26:53 03/16/17 (2)
- RE: Changing the Gain - Eli Duttman 13:27:55 03/16/17 (1)
- RE: Changing the Gain - Victor Khomenko 16:31:12 03/16/17 (0)