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.

Strength Test (CB16721E)
In this game, whoever tightens the sensors, which are metal bars or spent batteries, makes the...
One Transistor Mixer Preamplifier (CB871E)
This two input simple mixer uses two transistor and can b e upgraded to more inputs. Input...
Sound Level Indicator (CB10649E)
This circuit is from a 1987 American publication called Electronics Handbook. The circuit can be...