Found in American documentation from the 1990s, this simple circuit excites a LASER diode. The integrated circuit is from Sharp, uncommon nowadays.
This circuit was found in a 1964 Electronic Design. The components are of the time, and modern...
This circuit was found in a 1999 publication. Its purpose is to flash two LEDs according to the...
This circuit is from a Popular Electronics from the 90's. The circuit directly drives high power...