Man working at an elaborate electronic desk inside an electronics plant, ca.1940

Photograph of a man working at an elaborate electronic desk inside an electronics plant, ca.1940. A man sits in a chair with his back facing the right, at the right corner of the room. The desk he sits at is a large structure with a tilted surface, and beside this sits a machine with two rows of knobs. At left, another desk-like piece of machinery can be seen, beside a metal(?) box on the floor.