The 303U is a 125 watt triode with a mu of 21 made by United for use in diathermy. Length = 8.50" Diameter = 2.31" Max voltage = 1500 Max current = 200 ma Fil voltage = 10 Fil current = 3.25 amps GOTO INDEX
The 303U is a 125 watt triode with a mu of 21 made by United for use in diathermy.