|
SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
|
|
|
SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
|
In Reply to: You guys were right !.. it needs a bias resistor ..... posted by drummerwill on January 19, 2015 at 12:30:42:
The larger you make the value of the grid resistor (within the limits of the tube) the happier the stage before it will be."I generally stick to grid leak resistor values of 250K or less with the 26 as they tend to have significantly higher grid current than more modern types.
Grid leak resistor values aren't given in any 26 datasheet I have looked at - probably because the 26 was commonly used in transformer coupled circuits. "
As a separate issue, with a 100k resistor and a .1uf coupling cap you will have a -3db point of that high pass filter at 15.9Hz. The amplitude and phase will remain somewhat disturbed clear up to 159Hz.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 01/19/15
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: You guys were right !.. it needs a bias resistor ..... - Tre' 18:30:55 01/19/15 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
