Monolithic integrated selection circuit

Details Monolithic integrated selection circuit Monolithic integrated selection circuit

1979-03-12

1980-08-05

Witkowski, S. J.

Music

Instruments

84DIG2, 307251, 307303, 307304, 328137, 328154, 340147LP, G10H 100, H04Q 300

Patent

active

042156157

ABSTRACT:
The circuit enables the selection of the upper or the lower tone of an electronic organ chord with regard to a switching signal. In response to said switching signal each tone frequency signal handled is either fed to the anode or the cathode of a switch component of a plurality of switch components connected in series whereas the switch components of the tone frequency signal not handled are switched on.

REFERENCES:
patent: 3746775 (1973-07-01), Uchiyama
patent: 3781450 (1973-12-01), Nakajima
patent: 3825667 (1974-07-01), Schrecongost
patent: 4016792 (1977-04-01), Schrecongost
patent: 4064777 (1977-12-01), Akamatsu
Funk-Technik, 1972, Nr. 20, pp. 737-740.

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