1974-06-24
1976-06-01
Hix, L. T.
Music
Instruments
84 111, 84DIG9, 307295, 333 70R, G10H 100, G10H 500
Patent
active
039600432
ABSTRACT:
A filter circuit for use in a musical instrument, such as an electronic organ, eliminating undesirable keying transients introduced into the signals provided by tone generators of the organ. The filter circuit includes a bandpass filter filtering from the keyed tone generator signals frequencies which are below and above the desired audio frequency spectrum of the output sound.
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C. L. Searle et al., Elementary Circuit Properties of Transistors, Semiconductor Electronics Education Committee, vol. 3, John Wiley & Sons, Inc., Second Printing, Oct., 1966, Copyright 1964, pp. 227-230.
Hix L. T,.
Warwick Electronics Inc.
Witkowski Stanley J.
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