High impedance comparator (CB9594E)

This circuit can be implemented with other operational ones. We found it in documentation from the 1980s. The power supply must be symmetrical.

PWM speed control (CB7173E)
Suggested by Motorola documentation from the 1980s, this circuit can be implemented with...
Temperature sensor (CB9478E)
This circuit has an interface for a multimeter or electronic voltmeter. We found it in a 90s...
1 W Integrated Amplifier (CB6282E)
Using a component of the era, this 1968 Mallory circuit uses an output transformer whose...