Reflected plate amplifier

Details Reflected plate amplifier Reflected plate amplifier

1994-07-28

1995-09-12

Mottola, Steven

Amplifiers

With plural diverse-type amplifying devices

330288, H03F 500

Patent

active

054500346

ABSTRACT:
A reflected plate amplifier (RPA) for use with electronic audio equipment. The RPA comprises an input circuit for receiving an input signal, a vacuum tube, a plate current reflector, and an output circuit for delivering an output signal. The vacuum tube has a control grid coupled to the input circuit for receiving the input signal, and a plate for delivering a plate current responsive to the input signal. The plate current reflector is a transistor having an input terminal coupled to the plate of the vacuum tube for receiving the plate current, and an output terminal for delivering a reflected current which is responsive to the plate current of the vacuum tube and therefore responsive to the input signal, while the plate current reflector holds the plate voltage of the vacuum tube substantially constant for a wide range of the plate current of the vacuum tube.

REFERENCES:
patent: 5017884 (1991-05-01), Perandi

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