Electronic Fuse (CB25411E)

This circuit was found in the December 1991 issue of Radio Electronics magazine. The circuit is based on a current transformer driving a SCR.

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High Impedance Sensor (CB19555E)
This JFET sensor was found in a 1989 publication. Virtually any FET like the BF245 can be used and the...
1kHz Double T Oscillator (CB10957E)
This circuit came out in a Popular Electronics from December 1995. It is a double T configuration that...
Light Detector (CB19923E)
The integrated circuit used in this application is not currently common and the sensor can be any...