The 3CX20000H3 is a metal ceramic, forced air-cooled triode with a thoriated tungsten carbide cathode. It has a medium amplification factor. The anode power dissipation is 20kW when working at 90MHz. It’s mainly used in industrial oscillators in the low frequency to lower very high frequency (VHF) range, but also in modulators or linear amplifiers of radio frequency modulation stages in AM broadcasting.
Specifications:
Filament Voltage……10V
Filament Current……160A
Transconductance……11mA/V
Interelectrode Capacitances (Grounded-cathode)
Input……70pF Feedback……2.3pF Output……43Pf
Installation……upright
Cooling……forced air for core column and anode
Weight……9.1kg
Temperature at anode shell and sealing joint……250℃
Maximum ratings (class C industrial oscillation)
DC Anode Voltage……12kV
DC Anode Current……8A
DC Grid Voltage……-2000V
DC Grid Current……1.5A
Anode Dissipation……20Kw
Grid Dissipation……750W
