Reverb and selectable tremolo and vibrato electron tube preampli

Details Reverb and selectable tremolo and vibrato electron tube preampli Reverb and selectable tremolo and vibrato electron tube preampli

1992-05-22

1994-07-26

Isen, Forester W.

Electrical audio signal processing systems and devices

Sound effects

Tremelo or vibrato effects

381 63, 381 64, 84705, 84706, 84707, H03G 300

Patent

active

053332032

ABSTRACT:
A preamplifier device employing electron tubes wherein the preamplifier has tremolo/vibrato circuits independent from reverb circuits allowing continuously variable control of either tremolo or vibrato effects simultaneous with continuously variable control of the reverb effect. A mixer control for controlling the level of reverb and a tone control is provided. Connections are provided for external switches used to disable any one of the above effects.

REFERENCES:
patent: 2318417 (1943-05-01), Phelps
patent: 2534342 (1950-12-01), Daniel
patent: 2817708 (1987-12-01), Fender
patent: 2892372 (1959-06-01), Bauer
patent: 2967909 (1961-01-01), Rice
patent: 3076370 (1963-02-01), Williams
patent: 3388257 (1968-06-01), Ten Eyck
patent: 3413403 (1968-11-01), Jacob
patent: 3431358 (1969-03-01), Goncharoff
patent: 3492425 (1970-01-01), Evans

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