This circuit was obtained from an old Electronic Design. The components are from the period but can be replaced with modern equivalents.
This sophisticated power supply for the laboratory of the maker or professional repaired was found...
The A3906 integrated circuit from Allegro MicroSystems (www.allegro.com) consists of a single-step motor...
This circuit for high power xenon lamps was found in the November 1974 issue of Radio Electronics...