Power circuit for loudspeaker telephone

Patent

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Details

179 77, H04M 160

Patent

active

043049699

ABSTRACT:
A power circuit for a loudspeaker telephone station incorporates separate capacitors across the power terminals of the transmitting and receiving amplifiers, with a regulating circuit for charging the capacitor connected across the receiving amplifier only after the other capacitor has been fully charged. A control circuit for the telephone station is connected in parallel with the transmitting amplifier.

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