High current buffer (CB7280E)

Suggested by Popular Electronics, it is a digital amplifier, for pulses with frequencies up to a few megahertz.

Contactless temperature sensor (CB7109E)
Found in an American documentation from 1968, this circuit senses the temperature through an...
Voltage Level Detector (CB4660E)
This circuit is intended to trigger an alarm when the input voltage exceeds one value and to...
6 W Amplifier (CB4934E)
This 80's amplifier delivers 6 W of 8 ohm speaker power without using an output transformer....