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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SCS 5 kHz stages (CB9068E)
This SCS counter circuit was found in a 1964 General Electric documentation. The circuit has a...
Reflex receiver (CB23633E)
This simple 1-transistor reflex receiver was published in Radio Electronics magazine in September 1959....
High Impedance Differential Amplifier (CB4896E)
Operational amplifiers used in this 80's circuit is not very common today, but the setting can be...