Inconsistent bias readings.

Tubes Asylum

Questions about tubes and gear that glows. FAQ

I always check the bias on my cary monoblocks after being fully on for half an hour. The bias reading is wandering showing a drop of 15mA on one amp and 10mA on the other. It keeps dropping back later after adjustment. With it being a drop rather than a gain, can I rule out leaky copper foil caps. I suspect its the 300B tubes, as they won't zero, and I've had them a long time. Thanks.

[Badfinger]

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Kimber Kable

Topic - Inconsistent bias readings. - [Badfinger] 20:34:13 01/12/04 (1)

Re: Inconsistent bias readings. - MrTanner 03:09:39 01/13/04 (0)

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