Quartz crystal vibrator unit

Details Quartz crystal vibrator unit Quartz crystal vibrator unit

1974-08-30

1976-08-03

Budd, Mark O.

Electrical generator or motor structure

Educational or construction units or kits

310 81, 310 82, 310 91, H01L 4104

Patent

active

039731480

ABSTRACT:
A quartz crystal vibrator unit having a passive electronic element such as a condenser is disclosed. The passive electronic element having the value to compensate the deviation of oscillating frequency from the predetermined center frequency is selected and fixed on the case of quartz crystal vibrator. Since frequency adjustment at assembling process is eliminated, work efficiency is remarkably increased.

REFERENCES:
patent: 3404298 (1968-10-01), Roberts
patent: 3568093 (1971-03-01), Ishida
patent: 3791133 (1974-02-01), Hashimura et al.
patent: 3803828 (1974-04-01), Keeler et al.
patent: 3842585 (1974-10-01), Lupoli

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