This car alarm was found in a 1965 General Electric manual. The SCR can be commonly used with the TIC106 and sensors are placed in the doors using the existing courtesy light switches.
This VCO makes use of components from the 1980s. The circuit can be implemented with modern...
This circuit uses an LDR as a sensor to trigger an LED indicator at a preset lighting level. The...
This circuit was found in a 1968 General Electric documentation. It has an input impedance of 2 M ohms...