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.
Two operational are used on this triangular-rectangular oscillator suggested by Motorola in its...
This circuit from a Popular Electronics from the 90's can generate signals from 0.03 Hz to 3 kHz...
With 8 to 30 V power supply, the output power depends on both the voltage and the load. The...