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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Geiger Detector (CB4390E)
This circuit was found in a 1962 publication. At the time there were high voltage batteries like the...
Super Regenerative Receiver for 90 to 150 MHz Ban (CB1427E )Super Regenerative Receiver for 90 to 150 MHz Ban (CB1427E )
This receiver receives signals from the VHF band with earpiece or application in a power stage. The...
Mixer (CB6866E)
This 6-input mixer circuit is from 2004 documentation. The power source must have excellent...