Tube-number record
TOP 1294
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BrandTHOMSON-CSF
ClassTraveling Wave Tube
BaseFlexible / flying leads
Filament6.3 V @ 2700 mA
Construction
Primary TypeOther / special
EnvelopeCeramic-and-metal
SectionsSingle
Filament / Heater
Warm-up Time2s
Heater NotesImpregnated cathode
Absolute Maximum Ratings
Plate Voltage4800 V
Plate Dissipation1800 W
Grid 2 Voltage4500 V
Cathode Current360 mA
Audio Performance
Power Output275 W
Key Features
- Periodic permanent magnet focalization
- Isolated collector (depressed operation)
- Metal-ceramic construction
- High ruggedness
- Special brazed helix for heat dissipation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Saturated @ 1.5 GHz | 4200 V | — | — | — | 17 mA |
Application Notes
Designed for microwave radio links, electronic countermeasures, broadband communication systems, telemetry, and missile guidance.
Datasheets
Datasheet: TOP1294.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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