Electronic apparatus

Details Electronic apparatus Electronic apparatus

1978-09-18

1980-11-25

Truhe, J. V.

Music

Instruments

84 116, 84DIG7, 84 124, 338 69, G10H 100, H01C 1000

Patent

active

042351413

ABSTRACT:
An apertured insulating strip permits closing a circuit only at contact points defined by the apertures between a low resistance conductor and a high resistance conductor in an electronic circuit of the type which produces musical notes each having a frequency dependent upon the resistance downstream of a particular contact point.

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patent: 3776087 (1973-12-01), Ogi
patent: 3960044 (1976-06-01), Nagai et al.
patent: 4044642 (1977-07-01), Pearlman et al.
patent: 4079651 (1978-03-01), Matsui
patent: 4121488 (1978-10-01), Akiyama

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