The 4PR400A or 8188 is a 400 watt dissipation tetrode designed for use as a pulse modulator. Length = 6.00" Diameter = 3.37" Max voltage = 20000 Max current = 4 amps peak Fil voltage = 5 Fil current = 13.5 to 14.7 amps GOTO INDEX
The 4PR400A or 8188 is a 400 watt dissipation tetrode designed for use as a pulse modulator.