FU-921F Power supply Metal Ceramic High Frequency Electron Tetrode, Equivalent to 4CX10000D

Introduction:
1. The FU-921F electron tube has a cermet structure, a thorium carbide cathode, and a forced air-cooled tetrode. The maximum output power is 16kW, the rated operating frequency is 110MHz, and the rated board consumption is 10kW.
2. Mainly used as oscillator, amplifier or modulator.
3. It can be used interchangeably with imported 4CX10000D electronic tubes.
 

Characteristic parameter
Filament Voltage………7.5V                                     
Filament Current…………75A                       
Amplification Factor……4.5
Interelectrode Capacitances（Grounded Filament）
Input……………115pF                                 
Grid-Plate …… 0.7pF                                   
Output…………20.5pF                                 
Weight…………………5.5kg 
Maximum Length… 235mm
Maximum Diameter……178.5mm                     
Installation method: vertical installation
Maximum working temperature of the shell: 250℃
Cooling method: forced air cooling

Extreme use data
DC Plate Voltage…5kV
DC Screen Voltage……2kV
DC Plate Current… 2.5A
Plate Dissipation……6.65kW
Screen Dissipation……0.25kW
Grid Dissipation ……0.075kW 

Typical working state
DC Plate Voltage…5kV
DC Screen Voltage…0.5kV
DC Grid Voltage… -0.4kV
DC Plate Current…1.4A
DC Screen Cureent…0.26A
DC Grid Cureent…0.05A
Plate Dissipation…1.1kW
Plate Output Power…5.8kW