This circuit was found in a 1968 General Electric documentation. It has an input impedance of 2 M ohms and excites a load of 16 ohms. The integrated circuit of the time is the PA237.
September 2016 - It can be purchased from Mouser Electronics the new rectification controllers...
This 3-digit code switch was obtained from an old American documentation. The capacitor is 470 uF...
This small fluorescent lamp inverter (up to 20 W) can be powered by 12 V battery and even less. The...