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 circuit drive an LED with constant current determined by the values of the resistors of 10...
The circuit shown in the figure has a more efficient action, with an attenuation of 12 dB per...
This circuit with current up to 100 mA according to the transformer was found in the Radio...