Synchronized Triac Control (CB25497E)

This circuit was found in the August 1992 issue of Radio Electronics magazine. The circuit can be used as an isolated shield for microcontrollers.

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1 MHz FET Oscillator (CB6148E)
This circuit was obtained from HAM Radio magazine in an 80's issue. The FETs are types of the time...
Dual adjustable symmetrical power supply (CB25957E)
This dual adjustable power supply was found in the June 1990 issue of Radio Electronics magazine....
Low Frequency Stable Oscillator (CB5130E)
This 100 kHz crystal controlled oscillator was found in an American 1980s documentation. The...