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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: Re: Bias adjustment Graaf GM-20 posted by edje999 on April 18, 2005 at 03:18:47:
Turn the amplifier on. Let it warm up for a while. Turn it upside-down. Remove the bottom-plate. Adjust the bias to 20-30 mV. (maks 30, 20 makes the tubes last longer). Adjust the offset as close to 0 as possible. Make small adjustments and wait for the value to "settle" down.
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- Re: Bias adjustment Graaf GM-20 - Fosse 05:05:00 06/14/05 (0)
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