The H-800S is a varient or special marking of the 3CX1200D7/YU-121 and is a 1200 watt triode with a mu of 200 and a maximum frequency of 110 MHz. It was designed for grounded grid, zero-bias amplifiers. It currently resides in my 160 meter amplifier.
Length = 5.37" Diameter = 3.37"
Max voltage = 5500
Max current = 800 ma
Fil voltage = 6.3
Fil current = 25 amps GOTO INDEX