Found in a 1980s manufacturer documentation, this circuit can be used as an optical shield. The integrated circuit is from the era and modern equivalents can be tried out.
This circuit was found in a 1980s documentation for amateur radio. The circuit makes use of...
A positive transition in the trigger makes the outputs change state and remain so for the time...
This traditional transistor source uses only two transistors found in a 1998 documentation. The...