Crystal oscillating circuit

Details Crystal oscillating circuit Crystal oscillating circuit

1977-03-30

1978-08-01

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331158, 331177V, H03B 536

Patent

active

041045998

ABSTRACT:
A quartz crystal oscillation circuit comprising an active oscillation element; a quartz crystal resonant element connected to the active oscillation element; first and second variable capacity diodes respectively connected in series and in parallel with the quartz crystal resonant element; and means connected to the quartz crystal resonant element for varying the frequency of the oscillation circuit.

REFERENCES:
patent: 3477039 (1969-11-01), Chan
patent: 3523258 (1970-08-01), Niemoeller et al.
patent: 3569865 (1971-03-01), Healey
patent: 3982210 (1976-09-01), Gehrke

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