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Amplifier input signal overdrive auto-protection

2016-09-23 00:44  
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Amplifier input signal overdrive auto-protection
That circuit protects the overdriven signals going into an amplifier. Instead of a zener diode we use a transistor. That way we ensure that the above the ordinary input voltages ( 1 volt r.m.s.) can be acheaved without distortion. Also the use of a transistor limits the number of components used in this schematic. Source: NEXT.GR