Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1974-10-18

1976-04-13

Hix, L. T.

Music

Instruments

84445, 84DIG7, 200 11DA, G01H 100, G10H 502

Patent

active

039496384

ABSTRACT:
An absolute pitch selector apparatus provides a set of audio-frequency tone signals for a musical instrument. These are selected from a larger number of tone generator circuits by means of a rotary pitch selector switch. Stationary input and output contacts of the switch are printed on the same side of a stationary circuit board. The output contacts are shaped like the arcs of circles that are coaxial with the single circle of input contacts. A rotor carries a first set of spring contacts bearing on the stationary input contacts, a second set of spring contacts bearing on the stationary output contacts, and bridging conductors.

REFERENCES:
patent: 2539130 (1951-01-01), Grudin
patent: 3023659 (1962-03-01), Bode
patent: 3030848 (1962-04-01), Wick
patent: 3056326 (1962-10-01), Seybold
patent: 3674907 (1972-07-01), Derry
patent: 3800060 (1974-03-01), Hallman, Jr.
patent: 3824325 (1974-07-01), Obayashi et al.
patent: 3828285 (1974-08-01), Yokoyama et al.
patent: 3836909 (1974-09-01), Cockerell

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