Key assembly

Details Key assembly Key assembly

1981-04-16

1983-01-11

Gensler, Paul L.

Tuners

Tuner unit directly responsive to voltage and/or current...

Reactance tuning

334 7, 334 87, H03J 102

Patent

active

043684416

ABSTRACT:
A key assembly for receivers for communication systems, especially radio television receivers, comprises a casing, keys adapted for mutual release by means of a spring-loaded locking plate for switching in storable, selectively adjustable electrical values of channel memories consisting of a plurality of voltage dividers for variable capacitance diode tuning, rotary and slidable press buttons associated with the respective keys for channel tuning and optionally for selecting a frequency range, which is adjustable in a preferably pressed position of the rotary press button being different from the tuning position by turning into various locking angular positions, as well as a channel and frequency range indicator scale. According to the invention said indicator scale simultaneously is the locking plate for the keys.

REFERENCES:
patent: 3508176 (1970-04-01), Labude et al.
patent: 3743976 (1973-07-01), Meyer et al.
patent: 4097828 (1978-06-01), Hinderlmayr et al.

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