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.

Battery Monitor (CB5412E)
We found this battery monitor in a 2005 Linear Technology application manual. The circuit uses...
Power switch without RFI (CB21543E)
This circuit was found in an Electronic Design from 1967. The circuit uses two triacs being T2...
Video Transmitter (CB13972E)
For the low channels (2 to 6) the coil is formed by 5 turns of wire 20 or 22 in a form of 1 cm...