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.

Crystal Pierce Oscillator (CB12703E)
The circuit shown is a Pierce type oscillator and operates at the fundamental frequency of the...
FET crystal Oscillator (CB8055E)
This 100 kHz oscillator was found in a 1966 Motorola publication. The transistors are of types...
TPS54200 LED Synchronized Buck Driver (COM195E)
January 2017 - Texas Instruments' new TPS54200 integrated circuit for excitation of LEDs with a...