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In Reply to: biasing and old power tubes etc. posted by razzwill@gmail.com on February 6, 2007 at 20:54:14:
I suspect the previous owner converted the amp from Class A to Class AB1 and the amp no longer runs the tubes at the higher bias settings. I would stick with the 45 max negative bias.Are the amps supposed to be Class A?
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Follow Ups
- Re: biasing and old power tubes etc. - Catch22 21:53:55 02/06/07 (2)
- Re: biasing and old power tubes etc. - Rob Mercure 08:08:53 02/08/07 (0)
- Re: biasing and old power tubes etc. - razzwill@gmail.com 06:57:50 02/07/07 (0)