Found in an American documentation from the 90s, this circuit uses small low voltage lamps (6 to 12 V0. The circuit can be adapted to use LED indicators.
Sawtooth-type waveforms are typically generated by relaxation oscillators with unijunction...
This circuit was obtained in an Argentine publication in 1976. It consists of a series voltage...
Using a 4046 PLL, which is uncommon today, this circuit was found in the October 1994 issue of...