F4186
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BrandThomson-CSF
ClassTraveling Wave Tube Amplifier
BaseFlexible leads (supply), Coaxial OSM 202 (RF)
Filament6.3V @ 950mA
Construction
Primary TypeTraveling Wave Tube
EnvelopeConduction cooled
SectionsPeriodic permanent magnet focusing
Filament / Heater
Heater NotesHeater current range 800-1000 mA. Absolute maximum heater surge current 2000 mA.
Absolute Maximum Ratings
Plate Voltage2250 V
Grid 2 Voltage2200 V
Grid 1 Voltage70 V
Cathode Current40 mA
Audio Performance
Power Output3.5 W
Key Features
- Wideband
- High gain
- Control grid for easy modulation
- Helix isolated from ground for serrodyne operation
- Periodic permanent magnet focusing
- Conduction cooled
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 8 GHz | 1980V | - | - | - | 1mA |
Application Notes
The grid should always be in cut-off condition when the high voltage is not applied. Overcurrent interlock should be provided to remove helix, collector and grid voltages if the helix current exceeds 5 mA.
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