This circuit allows you to read capacitances on a common analog instrument. It is part of an article in the April 1990 Radio Electronics magazine.
This transistorized shift register was found in a 1970s RCA documentation. The used transistors can...
The integrated circuit used in this charger is not very common today. The circuit is from...
This zener test circuit was found in an English publication from 1989. The circuit tests zener up to...