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Old 11-27-2021, 11:44 AM   #8
Solder Sloth
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Join Date: Nov 2012
City & State: CO
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Default Re: Frying amplifier finals... audio, not rf...

drift happens ...but enough to cause it to leak too much and meltdown? Still if you have a bias current of 20mA and it goes to 50mA, it should still be able to tolerate the heat as it's still lower than RMS draw at high volume...

I suppose it's best when someone designs the amp using semiconductor voltages like diode drop voltages to regulate against drift.
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