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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Bias source from B+ or seperate trans, which is better? posted by DAK on August 8, 2014 at 09:29:28:
A separate bias transformer, and a FULL WAVE bridge, is always superior to a tap off a HV winding and a typical half wave, quasi rectified bias voltage !!
Your VA rating will be fine, backwards, forwards or side ways. Separate bias supplies are the best way to do fixed bias. Maybe you can fit a ( small ) choke input filter after the Full Wave Bridge. !!!
Always remember, the bias supply is on the MUSIC GRID of the tube, and it needs to be squeeky clean in execution !!!
Jeff Medwin
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Follow Ups
- RE: Bias source from B+ or seperate trans, which is better? - drlowmu 09:46:18 08/08/14 (15)
- This is what i am planning to do - DAK 22:22:08 08/09/14 (2)
- RE: This is what i am planning to do - Tre' 11:24:30 08/10/14 (1)
- RE: This is what i am planning to do - DAK 22:36:58 08/10/14 (0)
- Jeff, what about the argument... - FenderLover 19:23:02 08/08/14 (2)
- RE: Jeff, what about the argument... - drlowmu 23:39:08 08/08/14 (1)
- RE: Jeff, what about the argument... - FenderLover 01:11:20 08/09/14 (0)
- RE: Bias source from B+ or seperate trans, which is better? - Lee of Omaha 10:21:49 08/08/14 (8)
- RE: Bias source from B+ or seperate trans, which is better? - drlowmu 17:15:34 08/08/14 (3)
- Another dead professor! - gusser 10:30:04 08/11/14 (0)
- RE: Bias source from B+ or seperate trans, which is better? - rage 07:44:12 08/11/14 (0)
- Interesting comments - unclestu 18:19:03 08/09/14 (0)
- RE: Bias source from B+ or seperate trans, which is better? - DAK 15:35:06 08/08/14 (1)
- RE: Bias source from B+ or seperate trans, which is better? - Blackdog 05:32:45 08/09/14 (0)
- RE: Bias source from B+ or seperate trans, which is better? - SteveBrown 11:46:08 08/08/14 (1)
- RE: Bias source from B+ or seperate trans, which is better? - Tre' 13:00:34 08/08/14 (0)
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