1944 RCA Electron Tubes Print Ad - Traffic Light Electro-Matic Brain Automation

How RCA Electron Tubes Direct Traffic!

...

If your community could benefit from such a system, ask your local Safety Committee to get in touch with Automatic Signal Corp Norwalk, Conn.

...write, stating your problem, to RCA, Commercial Engineering Section, 621 South Fifth Street, Harrison, N. J.

GO

RCA

RADIO CORPORATION OF AMERICA

BUY WAR BONDS