JK 4037 Flip Flop with Reset (CB25121E)

We found this circuit in the April 1988 issue of Radio Electronics magazine. The circuit can be reset electronically.

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...