wideband amplifier with agc.
eeded if extremely slow decay times are required.) The emitter
–follower Q2 drives the AGC Pin 5 of the MC1490P and reduces the gain. R3 controls the slope.
OF SPEECH COMPRESSOR The amplifier drives the base of a PNP transistor operating common
–emitter with a voltage gain of approximately 20. The control R1 varies the quiescent Q point of this transistor so that varying amounts of signal .
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