The 3-500G is a 500 watt dissipation triode designed for zero bias operation. It appears to be a graphite plate version of the 3-500Z tube and was made by Jolida in China.
Length = 6.38" Diameter = 3.56"
Max voltage = 4000
Max current = 400 ma
Fil voltage = 5
Fil current = 14.6 amps GOTO INDEX