Power amplifier with switchable voicing elements

Amplifiers – With plural diverse-type amplifying devices

Patent

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Details

330118, 330123, H03F 328

Patent

active

057932522

ABSTRACT:
An electronic amplifying apparatus for sound reproduction and musical instrument amplification including at least two pairs of power output devices which are independently switchable between triode and pentode operation. The amplifier further contains a switch apparatus to select the amount of negative feedback within the amplifier.

REFERENCES:
patent: 3566236 (1971-02-01), Johnson
patent: 4532476 (1985-07-01), Smith
patent: 4593251 (1986-06-01), Smith
patent: 5550509 (1996-08-01), Trentino
patent: 5559469 (1996-09-01), Smith
patent: 5705950 (1998-01-01), Butler

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