Designed to operate with a video camera, this small transmitter was found in the February 1993 issue of Radio Electronics magazine. The microphone is electret.
Suggested by National Semiconductor in documentation from the 90s, this circuit uses a switched...
This circuit drives two-color LEDs at a speed that is set in the 100k pot. The circuit can be...
Found in old American documentation, this circuit is intended for the control of heating elements. The...