811

The 811 or VT-217 is a 55 watt triode with a mu of 160. Maximum frequency for full power is 60 MHz. Used in the WWII ART-13 transmitter as modulators. First marketed by RCA in 1939, it was replaced by the 811A.

Length = 6.60" Diameter = 2.45"
Max voltage = 1500
Max current = 150 ma
Fil voltage = 6.3
Fil current = 4 amps         GOTO INDEX