Variable level converter

Details Variable level converter Variable level converter

1979-08-29

1982-03-16

Mullins, James B.

Amplifiers

With pilot frequency control means

330284, H03G 330

Patent

active

043203485

ABSTRACT:
A variable level converter comprising a first variable level converting unit, a second variable level converting unit and an amplifying transistor connected therebetween. Each of the first and second variable level converting units comprises an inverted L-type variable attenuator which includes a variable impedance element. Each variable impedance element is controlled by the same level control signal and has the same electric characteristics.

REFERENCES:
patent: 3360737 (1967-12-01), Harris et al.
patent: 3671886 (1972-06-01), Fudemoto et al.
Stadnik, "A Phase-Shift Generator," Instruments and Experimental Techniques, vol. 17 No. 6, Pt. 2, Nov.-Dec. 1974 (Publ. May 1975), pp. 1710-1711.

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