This circuit shows that we can implement a voltage-controlled oscillator with almost any CMOS that can be connected as an inverter. The circuit is from Radio Electronics from January 1987.
The purpose of this circuit is to power a small fluorescent lamp from from a 12 V battery. The circuit...
This circuit was found in a 1968’s publication and uses germanium transistors. Equivalents can be...
This circuit generates the busy tone of ordinary telephones. The transistors can be the BC548 and...