Found in a 73 magazine for radio amateurs of the 90s, this circuit provides a 2 kV voltage with 7.5 mA of current for HeNe laser.
Texas Instruments ESD122 Electrostatic Discharge Diodes (ESD) can be ordered from Mouser...
Indicated on an 80's Radio Electronics, this circuit provides at its output a voltage that is the...
This traditional triac dimmer configuration was obtained in a 1987 documentation. The circuit can...