Flip Flop 4027 (CB25120E)

This circuit was suggested by an article in the April 1988 Radio Electronics magazine. The flip-flop is of the JK type.

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...