Found in Radio Electronics from the 90s, this circuit is intended for analog TV applications of the time. The transistor used as well as the module are uncommon components today.
This circuit is from an old publication, but it can be assembled with modern components. We can...
The purpose of this circuit found in a 1995 magazine is to monitor an alarm via telephone. When we...
Indicated for testing remote controls, this circuit was obtained from the June 1997 issue of...