Triac Heating control (CB21372E)

We found this circuit in a 1966 RCA manual. The integrated circuit is unusual, and the Triac must match the load.

Pulsed Infrared Transmitter (CB20981E)
Found in old American documentation, this circuit is current as it uses the 555 to modulate an...
Complementary Amplifier (MSB028)
This audio amplifier uses 3 transistor in a traditional configuration named complementary output....
Gun Sounds Generator (CB4626E)
The UM3562 integrated circuit is a dedicated circuit found in many toys because it generates three types...