This photoelectric relay was found in documentation from 1941. It makes use of a photoelectric tube or tube type that was common at the time. The circuit is powered directly by the power grid. The relay is a high voltage, low current coil type.

This photoelectric relay was found in documentation from 1941. It makes use of a photoelectric tube or tube type that was common at the time. The circuit is powered directly by the power grid. The relay is a high voltage, low current coil type.