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146.18.173.105
In Reply to: RE: welborne Labs drd 300b posted by horny on March 17, 2015 at 09:47:42
Just measure the parts in your amp.
Follow Ups:
I buy these amps and i think it is not original anymore
they used very good components like Shinko resistors and black gate caps
but i don't now if the values are as the original amp used to be
so i will check it with a schematic
R4 and R5 are the only two absolutely critical values. You can tell if the existing values are correct if the 300B is passing around 90 mA. If someone messed with the values, they would have to know what they were doing or the amp would not work.
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