The WE300B is a 40 watt triode with a mu of 3.85 and used as an audio output tube. Its popularity has lead to modern production by various makers as in the second example.
Length = 6.50" Diameter = 2.44"
Max voltage = 450
Max current = 100 ma
Fil voltage = 5
Fil current = 1.2 amps GOTO INDEX