Circuit arrangement for eliminating turn-on and turn-off clicks

Details Circuit arrangement for eliminating turn-on and turn-off clicks Circuit arrangement for eliminating turn-on and turn-off clicks

1980-07-24

1983-02-01

Mullins, James B.

Amplifiers

Combined with automatic amplifier disabling switch means

455174, H03F 114

Patent

active

043718418

ABSTRACT:
The circuit arrangement in accordance with the invention comprises an RC-element, to which the same direct voltage is applied as the amplifier. When the direct voltage is switched on or off the capacitor is either charged or discharged, the resulting oppositely directed voltages being applied to the anti-parallel base-emitter junctions of two transistors, whose collectors are interconnected. The collector voltage of these transistors serves to control a semiconductor switch included in the audio frequency branch.

REFERENCES:
patent: 3992677 (1976-11-01), Tsurushima

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