4066 Latching Touch Switch (CB25241E)

This circuit was found in the November 1989 Radio Electronics magazine. Power supply depends on the application.

Simple MW Receiver (CB10604E)
The circuit presented was obtained from a 1976 Italian Radio Elettronica but can be easily...
Operational with High Input Impedance (CB3950E)
This voltage amplifier with operational amplifier was found in an old documentation. However, it can...
Fourth order low pass Sallen Key filter (CB6940E)
This filter was obtained from Radio Electronics from the 80's. The configuration applies to any...