Vf 10 Volt / If 3.2 Ampère / Direct / Specified voltage AC/DC
Description
Thoriated tungsten filament version of UV203. Mu 25, 100W, 15MHz, radiation cooled.
Jumbo large pins base.
Made by Amperex, Cunningham, GE, RCA, Taylor, Westinghouse.
Announced around mid '923, according to Sibley.