Tuning circuit for AM receiver

Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination

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Details

455193, 455300, 455347, 455349, H04B 110

Patent

active

047425695

ABSTRACT:
In a tuning circuit for AM receiver, tuning coils, oscillation coils and capacitance elements of an antenna tuning circuit, a radio frequency amplifier circuit, and a local oscillator circuit are accommodated in discrete shield casings for high frequency coils; and the discrete shield casings are disposed in a row and united with each other in the form of blocks, thereby eliminating the necessity to effect tracking adjustment.

REFERENCES:
patent: 3643168 (1972-02-01), Manicki
patent: 3723882 (1973-03-01), Carlson
patent: 3783420 (1974-01-01), Bastian

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