The RS5 CIIa is a transmitting tube made for Telefunken equipment used in the trenches of WWI (c.1918). This is an early example made by AEG for their subsiderary Telefunken. With high voltage the tube had an output of 20 watts.

Length = 7.38" Diameter = 1.80"
Max voltage = 800
Max current =
Fil voltage = 12?
Fil current =         GOTO INDEX