White gummed label front lower right (partially scraped off)
Printed lower left of the back panel
overall: 8 3/4 in x 19 in x 6 1/2 in
Object is a metal chassis bearing 2 BNC connectors, 9 tube sockets (5 populated), and three transformers and two terminal strips. All this projects to the rear, the front panel is blank. A multi-wire cable is connected from the terminal strip to a 13-pin round screw connector.