Device for improving output waveform of manually controllable pu

Details Device for improving output waveform of manually controllable pu Device for improving output waveform of manually controllable pu

1978-06-02

1980-07-01

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307290, 307350, H03K 5153

Patent

active

042108284

ABSTRACT:
An output waveform of a manually operable tuning pulse generator of an electronic preset type tuning control device of a tuner using varactor diodes for a multi-band radio receiver is improved by using Schmitt trigger circuit means which may be provided with a trigger level checking circuit, both being provided as IC.

REFERENCES:
patent: 3604945 (1971-09-01), Hoffman et al.
patent: 3621452 (1971-11-01), Ho

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