This crystal-based circuit can generate accurate 50 or 60 Hz signals. The circuit is from a November 1998 Electronics Now magazine. The output signal consists of rectangular pulses.
Found in a 90s Silicon Chip documentation, this circuit provides a current of 3 A and the voltages...
This circuit from Radio Electronics from February 1983 shows how to use a clock radio in home...
The circuit shown below was obtained from an Italian magazine Sperimentare from 1977. All...