FSK receiver (CB14568E)

This circuit is from the Motorola Linear Databook of 1990. The coils must be according to the frequency of the signal.

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Microtransmitter (CB23575E)
This VHF transmitter was found in Radio Electronics magazine from June 1964. The transistor is an...
Relaxation Oscillator Using PUT (MSB075E)
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SCR photo control (CB8276E)
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