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.

Varicap Variable Frequency Oscillator (CB4587E)
The great advantage of the circuit shown in the figure is that its frequency is controlled by a...
TTL to MOS Converter (CB5106E)
This circuit can be used as a shield for microcontrollers. The circuit is from American...
Transistorized Oscilloscope (CB11568E)
Mounting an oscilloscope is the dream of many of our Internet users, although it comes up against...