100 kHz Colpitts (CB25681E)

This crystal-controlled oscillator was found in the January 1994 issue of Electronics Now. Other frequency crystals can be used.

AC Load Crowbar Circuit (CB5881E)
This circuit trips by shorting the load to quickly blow the fuse when the voltage exceeds a...
Epson SG 8018 Crystal Programmable Oscillators
Epson SG 8018 Epson Crystal Programmable Oscillators Available from Mouser Electronics, these...
FM demodulator for optical transmitter (CB25537E)
This circuit works with the previous two by demodulating the signals received modulated in FM. The...