Field intensity meter (CB7365E)

Found in a 1966 publication, this circuit is a simple version of a field strength meter. The diode is a general-purpose germanium type.

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1kHz Double T Oscillator 2 (CB10958E)
This circuit came out in a Popular Electronics from December 1995. It is a double T configuration that...
Narrow Pulse Sensor (CB21508E)
Found in a 1967 Electronic Design, this circuit can detect pulses as narrow as 0.2 us. Active...
Colpitts CMOS Oscillator (CB22397E)
This is the basic configuration of a Colpitts LC oscillator using a CMOS gate. ...