Similar to other circuits found in this section, this circuit is from a 1996 Electronics World; FET is general-purpose and the output circuit must be resonant at 100 kHz.
This circuit was found in a Popular Electronics from the 90s. The circuit uses general purpose...
This old circuit from the 80's generates logic signals with 50% active cycle (squares). The...
In the figure we have the way to control a TIC series triac with a reed switch. The current in the...