This circuit with 117 V output was found in a 1969 Electronic Design. Drive transistors admit equivalents and information about transformers is not given.
This IR light sensor circuit was found in the July 1992 issue of Radio Electronics magazine. It is...
Alongside the diagram of this control, which we find in a 1980s documentation are the component...
This circuit was found in an American documentation from 1968. The configuration can be adapted to...