This circuit was found in a 90's EDN. The circuit provides two 15 V outputs and one 5 V output from the 12V voltage of a car battery. The components are from that time.
These circuits use loads of 50 ohms to allow the use of a voltmeter in evaluating the output of a...
We found this source with the CI 723, common at the time, in a 1989 paper. Power transistors must be...
This project came out in an article of mine (Newton C. Braga) in the Popular Electronics magazine of...