![]() ![]() There are other factors that you would need to consider apart from just biasing, that would keep the amplifier healthy over long periods of use.Ģ. ![]() You would also need to look at DC Offset calibration and not just bias, for some amplifiers the service manuals would not be readily available and this makes proper accurate bias adjustment a challenge.Ī video will surely not help as the procedure will be different for different amplifiers. The best way to go about this is to restore the amp to a good condition and then bias it accordingly, or change the biasing potentiometers if they are damaged and replace them with new sealed type bourns potentiometers. ![]() Ideally there would be no need to calibrate the bias of a amplifier, unless the amp has aged components which are weak or the bias has deviated due to damaged potentiometers. The other principle for Biasing procedure requires adjustments in current and not necessarily voltage for which you would need a ammeter to calibrate. Ideally the biasing test points would be across the emitters of NPN and PNP transistor pair in most solid state amplifiers, where in DC Voltage is being measured or calibrated. This is a big topic and a debate as well, the biasing procedure is different for each and every amplifier with varied test points. ![]()
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