Found in Popular Elecronics, this configuration also appears in this section, but obtained from other sources. The 14.4 V supply allows the circuit to be used in the car.
This signal generator found in Japanese documentation of 1973 uses an unusual integrated circuit...
This circuit is from a Texas Instruments manual from 1968 but can be applied to current controls...
We found this circuit in an 80s Intersil documentation. Modern equivalent operating systems can be...