| Certification: | ISO |
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| Shape: | Metal Porcelain Tube |
| Shielding Type: | Sharp Cutoff Shielding Tube |
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The FD-911SD is a high power ceramic-metal triode. It has thoriated tungsten cathode and water cooling of plate.
The tube maximum plate dissipation is 80kW and maximum frequency operation is 26MHz.
The tube designed for oscillator in the industry high frequency heating applications.
GENERAL CHARACTERISTICS
| Output Power | 100KW |
| Anode voltage | 12KV |
| Anode dissipation | 80KW |
| General Characteristics | |
| Filament voltage | 12 V |
| Filament current | 205±15 A |
| Transconductance (Ia=12A) | ≥45 mA/V |
| Amplification factor | 25~40 |
| Interelectrode capacitance | |
| Grid- Cathode | 90 pF |
| Anode-Cathode | 1.2 pF |
| Anode Grid | 80 pF |
| Operating position | Vertical, anode down |
| Height | max 560 mm |
| Diameter | max 225 mm |
| Weight | max 18.5 kg |
| Cooling Water and forced air | |
| Water flow on anode | ≥120 L/min |
| Air flow on stem | ≥200 M3/h |
| Water outlet temperature | ≤55 |
| Max temperature at seal | ≤250 |
| Maximum ratings | |
| Filament voltage | max 12 V |
| Filament surge current | 315 A |
| Anode voltage | max 15 kV |
| Anode dissipation power | max 80 kW |
| Grid dissipation power | max 2.6 kW |
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