The 211E is a 65 watt triode with a mu of 12. The 211E is an improved 211D with built in RF coils. Most 211Es were made with a black composition base but as shown in the first example were also made with the metal shell base.

Length = 7.25" Diameter = 2.00"
Max voltage = 1000
Max current = 85 ma
Fil voltage = 10
Fil current = 3 amps         GOTO INDEX