This circuit is from a Radio Electronics magazine from August 1990. The indicator module is of a common type at the time.
This surge test circuit was found in a 1980s ON Semiconductor documentation. The circuit makes use...
Capacitance to voltage converter (CB6075E) This Texas Instruments circuit can be used on a...
Using 3 ports, this rectangular oscillator was found in the March 1996 issue of Electronics Now...