F4025B
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BrandTHOMSON-CSF
ClassTraveling Wave Tube
BaseDEUTSCH connector RSM 07.12.14.P.A.520
Filament6.3V @ 0.4mA
Construction
Primary TypeTWT
EnvelopeCeramic and Metal
Base MaterialMetal
SectionsSingle
Filament / Heater
Warm-up Time120s
Heater NotesRegulated heater supply recommended.
Absolute Maximum Ratings
Plate Voltage900 V
Plate Dissipation0.1 W
Cathode Current7 mA
Audio Performance
Power Output0.04 W
Key Features
- Wide band
- Low noise
- High gain
- Periodic permanent magnet focusing
- Rugged military airborne construction
- Integrated voltage distributing network
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation at 5.7 GHz | 850V | - | - | - | 0.9mA |
Application Notes
The tube helix should be connected to ground by means of a DC short or a crystal rectifier after installation. Pre-heat for two minutes before applying high voltage.
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