This inverter circuit for a capacitive discharge ignition system was found in a Radio Electronics magazine from February 1967. The power transistors must be equipped with heatsinks.
This circuit, with the LM3900 transconductance amplifier, has an adjustment to obtain zero output...
This analog tachometer was found in Radio Electronics from the 90s. The components used can still...
We found this circuit in a 1967 Electronics World. The circuit can be designed to control other...