This power control circuit was found in an article in the June 1995 Electronis Now magazine. The circuit makes use of a trigger transformer.
This oscillator with emitter follower was found in an American documentation from the 80's. The...
We found this circuit in 2005 Linear Technology documentation. The integrated circuit is LT1787...
The circuit is suggested by National Semiconductor in its 1994 Linear Applications Handbook. The...