Micro metronome (CB20743E)

This simple CMOS metronome circuit can be mounted in a small box, providing both sound and light sources.

1kHz Triggered Oscillator 555 (CB25513E)
We found this circuit in the October 1992 Radio Electronics magazine. The frequency is given by C1...
PNP Mini Flasher (CB17511E)
This conventional LED flasher circuit has a configurable multivibrator configuration with PNP...
1-cycle-per-30-day oscillator (CB26073E)
This extremely slow circuit produces one pulse per month and can be used in a timer. We found it...