The 450TH or VT-108 is a 450 watt triode with a mu of 38 and usable at full power to 40 MHz. They originated from the 450T "HI" varient. Early versions had hemispherical anode caps and a grid pin horizontally through the envelope as in the second example (1944) like the 450T. In 1945 the more common types had the grid exiting the envelope at an angle.

Length = 12.62" Diameter = 5.13"
Max voltage = 6000
Max current = 600 ma
Fil voltage = 7.5
Fil current = 12 amps         GOTO INDEX