Washington Police Radio

Radio Record, Volume VIII, Issue 29, 25 January 1935, Page 42

Washington Police Radio

National Union Valves Used _ Exclusively.

"THE Police Department in Washington D.C., U.S. A., the Federal Capital of the whole of the United States, has just advised the National Union Radio Corporation that in future National Union radio valves-will be used exclus-: ively in police radio systems in Washington. . The Police Department reports that the selection of National Union valves ‘for this highly exacting work was made only. after a long series of tests of every radio.valve on the American market. ' In America to-day, the Police Depart: ments of all the largest American cities are using National Union valves exclusively in their police radio systems. ae lg