The figure shows how to generate a sinusoidal signal using a CMOS integrated circuit. The circuit is from a Radio Electronics from November 1976. The frequency depends on the capacitors.
This SCR circuit activates a buzzer when triggered. The circuit is from a Popular Electronics from...
This circuit is used for incandescent lamps and other resistive loads up to 3A using the TIC206. This...
This circuit is from 1995 documentation, but can be easily assembled today, as the components used are...