This HeNe laser power supply was found in the March 1989 issue of Radio Electronics magazine. This power supply generated a few thousand volts for gas ignition.
This bargraph circuit is from an ancient American documentation. It indicates the charge state of...
Launched in 2017 the Microchip CL88020 is an LED driver optimized for 120 VAC input applications with an...
Like the previous circuit, this is used in the analog part of the telephone lines. The same...