Found in the Encyclopedia of Electronic Circuits volume 5 from 1995, this circuit uses a transformer. The circuit feeds a transformer that produces 200 V for a xenon lamp.
This is the traditional configuration of na Astable Multivibrator using two NPN ttransistor....
This treble and bass control drains some milliamperes from a 12 V supply and can be used with any...
This is a very simple configuration with a power transistor to control a DC motor from 3 to 12 V...