CA3080 Amplifier (CB25131E)

This amplifier with an OTA has a gain of 40 dB. The power supply must be symmetrical. Found in Radio Electronics, May 1988.

Antenna Tuner (CB21637E)
The purpose of this circuit is to improve the reception of signals from the short-wave band. The...
Light detector (CB8338E)
This highly sensitive light sensor was found in a 1970 General Electric documentation. The circuit...
Wireless Headset Transmitter (CB20970E)
This circuit was found in a Popular Electronics from the 90's. The CMOS integrated circuit used is...