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In Reply to: RE: Changing the Gain posted by Victor Khomenko on March 18, 2017 at 09:55:53:
" Gain directly depends on it."No it isn't.
The mu of the tube changes very little no matter what you do.
Lowering the plate load resistor will limit the max output swing but will not lower the mu (and therefore the gain of the stage) at all.Edit, I should have said "will not lower the mu enough to make any real difference"
Edit again, Yes you can lower the mu enough to make a real difference but by the time you've done that the plate resistor is so small that the load line is very vertical and the harmonic distortion is unacceptably high.
Bottom line, for all practical purposes the gain of a tube is what it is. If it's to high, get a different tube.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 03/18/17 03/18/17 03/18/17
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Follow Ups
- RE: Changing the Gain - Tre' 19:40:52 03/18/17 (6)
- RE: Changing the Gain - Victor Khomenko 06:02:43 03/19/17 (5)
- RE: Changing the Gain - Tre' 07:51:14 03/19/17 (4)
- RE: Changing the Gain - Victor Khomenko 08:35:31 03/19/17 (3)
- Read what? - Tre' 09:36:30 03/19/17 (2)
- RE: Read what? - Naz 04:56:54 03/21/17 (1)
- Agreed - Tre' 07:46:03 03/21/17 (0)