Musical instrument performance amplifier

Details Musical instrument performance amplifier Musical instrument performance amplifier

1979-12-26

1982-08-24

Truhe, J. V.

Music

Instruments

84 127, 330264, 330269, G10H 102, H03F 326

Patent

active

043455026

ABSTRACT:
The output section of a musical instrument performance amplifier comprises a pair of high impedance power field effect transistors connected to an output transformer to provide a relatively low push-pull drain load that effectively presents a high impedance constant current source to a loudspeaker. The amplifier, having such high impedance constant current source output, amplifies and sustains instrument sound, provides large amounts of power to the speaker over a wide range of speaker impedances, and enables production of high power harmonics.

REFERENCES:
patent: 3862367 (1975-01-01), Kono et al.
patent: 4096443 (1978-06-01), Gilson
patent: 4235144 (1980-11-01), Lubow et al.
patent: 4241313 (1980-12-01), Takehara
patent: 4241314 (1980-12-01), Iwamatsu
Noll, FET Principles, Experiments & Projects, p. 56, (1975).

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