3 A switched regulator (CB8859E)

Found in a 90s Popular Electronics, this circuit provides a current of 3 to 5 A depending on the transistor.

TDM3700 Proximity Detector and Color Sensor
This new AMS device consists of a digital color sensor and proximity sensor that also incorporates an infrared...
Amplifier LM386 (CB15698E)
This amplifier produces a few hundred milliwatts of Input 100 pF audio over a load of 4 or 8 ohms...
Infrared Remote Control Transmitter (CB18696E)
This transmitter for modulated infrared remote control was found in documentation from the 90s....