NE602 Crystal Oscillator (CB26005E)

This oscillator reaches 50 MHz with an overtone crystal. The circuit is from Electronics Now magazine from February 1997.

Improved 1 kHz Astable (CB24840E)
This circuit was found in the September 1984 issue of Radio Electronics magazine. The frequency is given...
Sensitive Electronic Relay (CB15115E)
We found this circuit in an Argentine documentation from 1973. The transistor admits a more modern...
Triac Switch (CB25869E)
This triac synchronized circuit was found in the July 1995 issue of Electronics Now magazine. The...