This circuit can be used with 5 to 15 V sources and the zener diode must be chosen according to the trip voltage of the protector. The circuit blows the fuse when the voltage exceeds the zener value.
This circuit was obtained in a Hobbyst Handbook from 1990. The circuit can be easily assembled...
This simple oscillator generates a 455 kHz signal. The circuit is from an 80's documentation and its...
This circuit was found in a 1967 Electronic Design. The FET is from that time. Capacitor C is...