This receiver, called Peace, was manufactured in the 1960s in Japan and was powered by a 9 V battery. The radio for medium waves had an earphone and good sensitivity.
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...