This 1.2 to 32 V x 3 A regulator was found in an 80's EDN. The power components must be equipped with good heat sinks.
According to the author of this project, from a documentation on espionage from the 1980s, this...
This circuit suggested by Siemens can provide time intervals for triggering values that are given...
This circuit generates a good-intensity 1 kHz rectangular signal. The circuit is from Electronics Now...