Power supply circuit for use with an electrostatic transducer

Details Power supply circuit for use with an electrostatic transducer Power supply circuit for use with an electrostatic transducer

1974-11-13

1976-06-01

Shoop, William A.

Electrical transmission or interconnection systems

Miscellaneous systems

Power packs

307 46, 179 1A, 179 2C, H02J 700

Patent

active

039612023

ABSTRACT:
A first power supply and output circuit and a second power supply and output circuit for use with a microphone unit having an electrostatic transducer and pre-amplifier transistor is disclosed. DC power to the microphone unit is supplied from the first circuit through a single core cable. An output signal from the microphone unit also passes through the cable to an output transformer in the first circuit. The first circuit has a first battery and the second circuit a DC power source which, when connected to the first circuit, stops drain on the first battery.

REFERENCES:
patent: 2377121 (1945-05-01), Bachman
patent: 3015695 (1962-01-01), Claras et al.
patent: 3048659 (1962-08-01), Crow et al.
patent: 3305638 (1967-02-01), Teachout
patent: 3848197 (1974-11-01), Boyd et al.
patent: 3862367 (1975-01-01), Kono et al.

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