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.
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
The division by eight using the 4018 is made as shown here. It isn't necessary to use additional...
We found this circuit in a Popular Electronics of the 90s. The circuit still uses light bulbs, but...