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In Reply to: Re: Bias adjustment Graaf GM-20 posted by papworth on April 8, 2005 at 06:09:09:
It is extremely important that the tubs ar mathed. The bias current is 30mv. But Graaf has posted that the bias i sett to 25mv (for longer lasting tubs) you also have to set the ofset, which must be as close to null as possible. Ther is one adjustment for each side. You adjust two tubs at the time the same gos for the ofset. This tubs shuld be adjusted every ten hours the first hundred. If not the tubs my fail earlier than expectet.
I own two GM 20 bridge mono/brian
Norway
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Follow Ups
- Re: Bias adjustment Graaf GM-20 - proac@operamail.com 07:18:28 04/08/05 (2)
- Re: Bias adjustment Graaf GM-20 - edje999 03:18:47 04/18/05 (1)
- Re: Bias adjustment Graaf GM-20 - Fosse 05:05:00 06/14/05 (0)
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