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