Product Details
FU-836F or FU-836FA is metal ceramic triode, directly heated Thorium tungsten cathode triode. The anode cooled by forced air. The anode dissipation power 30kW, the output power can up to 30kW when the frequency is less than 60MHz.The tube is mainly used as the amplifier and oscillator in industrial high frequency medium heating equipment.
Electrical Characteristics:
Filament Voltage |
10V |
Filament Current |
200A |
(Ia=0.2A) Transconductance |
≥60mA/V |
Amplification factor |
25 |
Interelectrode Capacitances |
Grid-Anode |
43.5pF |
Grid-Filament |
86pF |
Filament-Anode |
3.4pF |
Weight |
14.6kg |
Operating position |
Vertical anode up |
Cooling |
Forced air |
Anode cooling air flow |
1500m³/h |
Air flow on stem |
80m³/h |
Max temperature at any point tube envelope |
250℃ |
Limit Working Conditions:
| Max Frequency |
30MHz |
DC Anode Voltage |
12kV |
DC Grid Voltage |
-1500V |
Anode dissipation |
30kW |
Grid dissipation |
1000W |
DC Anode current |
8A |
DC Grid current |
2A |
Typical Operation:
| Frequency |
30MHz |
Filament voltage |
10V |
DC Anode Voltage |
10kV |
DC Grid Voltage |
--850V |
Grid RF peak voltage |
1200V |
DC anode current |
7.5A |
DC Grid current |
1.2A |
Output power |
60kW |
Dimension(mm):
Caution for the use:
1.While move and install the Electron Tube, should be put very carefully, strong vibration and been struck is forbidden.
2.Electron Tube should be stored in the dry place, the temperature should above -5℃. For long-term preservation, it should be better sealed in plastic bags and put some dry desiccant in.
3.Prevented from the extraneous matters contaminated the surface of the Electron Tube, especially the ceramics and the glasses part of the Electron Tube.
4.Electron tube and the vacuum chamber, valve socket are the constituent parts. They must be tight junction. While replace Electron Tube, should check if the leaf spring is still tight junction. If there is deformation, loose, fall off, it should be repaired immediately.
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