This circuit was found in a 90s Silicon Chip documentation. The current of the transformer is 1 A maximum, a value given by the integrated circuits used.
This very old circuit, from a publication from the 1970s, uses a germanium transistor and two...
July 2017 - Mouser Electronics has in its stock the new infrared (IR) emitters from OSRAM Opto...
This circuit was found in a Radio Electronics issue from May 1989. Please note that it may not...