Power supply switching circuit for combined audio system

Details Power supply switching circuit for combined audio system Power supply switching circuit for combined audio system

1974-09-13

1976-02-10

Claffy, Kathleen H.

H04B 100

Patent

active

039378861

ABSTRACT:
In a combined audio system including main audio apparatus, auxiliary audio apparatus comprising at least one of a phonograph record player and a magnetic recorder and/or reproducer having automatic shut-off mechanisms, a power supply switching circuit is disclosed comprising a main switch and a plurality of auxiliary switches for applying power to the main audio apparatus and the auxiliary audio apparatus. The auxiliary switches are controlled by the automatic shut-off mechanism to de-energize the auxiliary audio apparatus and, additionally, selectively supply power therethrough to the main audio apparatus whereby the main audio apparatus is de-energized when the auxiliary audio apparatus is de-energized.

REFERENCES:
admiral Co., Console Model Y17015, Manual in Sams Set 986, (1968).
Gen. Elec. Co., Console Chassis T7C, Manual in Sams Set 987 (1968).
Vissers, W., "H. F. Switching," Radio & TV News, May 1955.

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