4066 Latching Touch Switch (CB25241E)

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

6 Transistors MW Radio (CB16572E)
We found this transistorized AM receiver of the regenerative type of excellent quality in a...
Continuity Tester (CB4546E)
This continuity tester for low resistances was found in an English magazine from 1978. The circuit...
MW trap for short wave receiver (CB20935E)
Found in American documentation from the 1980s, this circuit rejects strong MW stations that may...