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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