The 4-400C or 6775 is a 400 watt dissipation tetrode. The usable frequency for maximum ratings is 110 MHz. The 4-400C was designed for long life performance. The first example was made by Amperex and the second by Penta (PL-6775).
Length = 6.38" Diameter = 3.56"
Max voltage = 4000
Max current = 350 ma
Fil voltage = 5
Fil current = 14.5 amps GOTO INDEX