This circuit was found in an American publication from 1965. The circuit uses components from that time. No information was given about the excitation transformer. Observe the high input power.
Suggested by Sprague in the 90's documentation, this circuit applies to AC motors. The...
This conventional circuit of the LM117 was found in the manual of linear integrated circuits of...
Found in the September 1992 issue of Radio Electronics magazine. This circuit generates pulses that...