This circuit was found in General Electric documentation from the 1980s. The circuit is intended to receive 50 kHz modulated optical signals. The components support modern equivalents.
We do not know exactly what sound a flying saucer makes, or if it makes a sound! But this is not...
This ultrasonic digital remote-control transmitter was found in the January 1976 issue of Radio...
This circuit converts 12 V to 127Vac to power small electronics in the car. It was found in the...