This power source for Gas Laser was obtained in a 90’s Electronic Design. The circuit uses a switched regulator from the time. Equivalents can be used.
Found in American documentation from the 1980s, this circuit applies to modern operational...
Found in Unitrode documentation from the 1980s, this circuit makes use of PUTs, currently common...
This high-powered battery powered flasher was found in General Electric documentation from the...