Found in American documentation from the 1990s, this simple circuit excites a LASER diode. The integrated circuit is from Sharp, uncommon nowadays.
This project was found in a 1982 documentation. Super-regenerative receivers can combine great...
This circuit can be used as a direct optical link or by optical fibers. We found it in a...
The purpose of this circuit is to alternately activate a two-tone horn with low sound and a horn...