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In Reply to: Audio Research D-76 - advice on biasing posted by mark944s2@yahoo.co.uk on January 25, 2010 at 11:41:01:
When I worked there in the 70s, for best sound, we liked 55ma on the low side and 60-65ma on the high side.
However, there's no doubt the tubes won't last as long.
I might suggest comparing 50ma & 60ma and see what you prefer, absolute best sound or better tube life.
I wish I could say how much shorter the tube life would be at 60ma, but I don't actually know.
Best regards,
Jim Smith
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Follow Ups
- Agree w/Dman, except maybe... - Jim Smith 01/25/1015:29:56 01/25/10 (1)
- RE: Agree w/Dman, except maybe... - Dman 07:09:59 01/26/10 (0)
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