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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: Newbie question: How often does the bias need to be set/checked on a tube amp? posted by psgary on August 19, 2014 at 09:47:39:
If the amp (or power tubes) is/are brand new check it fairly frequently - after 5-10 hours, and again after 25 and 100 hours of use. If your amp uses a tube rectifier check the bias whenever you change rectifiers - as well as whenever you change power tubes.For an amp or tubes that are not new I check it every 3-6 months, depending on use. Some amps are more stable than others, so once you get to know yours you can make a judgement call. That holds true for a new amp or tube set too, after there's some use on it/them they don't need as frequent checking/adjusting.
There is no exact specifications on how often to check, but what I described above works well for me.
There are some biasing tips in the FAQ, check out the link below.
Edited to clarify...
Edits: 08/19/14 08/19/14
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Follow Ups
- RE: Newbie question: How often does the bias need to be set/checked on a tube amp? - Jim McShane 11:38:28 08/19/14 (4)
- RE: Newbie question: How often does the bias need to be set/checked on a tube amp? - tube Tom 14:20:32 08/20/14 (1)
- RE: Newbie question: How often does the bias need to be set/checked on a tube amp? - Jim McShane 14:25:06 08/20/14 (0)
- RE: Newbie question: How often does the bias need to be set/checked on a tube amp? - ahendler 16:50:58 08/19/14 (1)
- Except when - Frihed89 03:37:18 08/20/14 (0)
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