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.

Circuit To Observe Transistor´s Characteristic Curve (CB1287E)
We found this circuit in an old publication on oscilloscopes. Its purpose is to observe the Ie /...
Magnetic Alarm (CB16638E)
The sensors in this alarm are reed-switches. In the diagram we have only one, but several can be...
Variable Reset Ramp Generator (CB5930E)
This circuit can be controlled by an external signal which allows its use as a shield. The circuit...