The 4B/603E or CV398 is a 60 watt tetrode pulse modulator tube. Length = 5.63" Diameter = 2.38" Max voltage = 12000 Max current = 15 amps peak Fil voltage = 26 Fil current = 2 amps GOTO INDEX
The 4B/603E or CV398 is a 60 watt tetrode pulse modulator tube.