Tube-number record
F4130
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BrandCSF
ClassTraveling Wave Tube (TWT)
BaseSpecial / none
Filament6.3 V @ 1300 mA
Construction
Primary TypeOther / special
EnvelopeMetal/Glass
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialOxide coated cathode
Warm-up Time180s
Heater NotesIndirect heating
Absolute Maximum Ratings
Plate Voltage1100 V
Grid 2 Voltage2300 V
Cathode Current60 mA
Audio Performance
Power Output20 W
Key Features
- Broadband amplifier
- Minimum 20W saturated power
- Permanent magnet focusing
- Low leakage magnetic field
- Robust and lightweight construction
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 2 GHz Amplifier | 1000 V | — | — | — | 58 mA |
Application Notes
Recommended to have a safety relay in the helix circuit acting when current exceeds 5 mA. Helix and collector voltages must be applied before anode voltage. Avoid ambient magnetic fields > 5x10^-4 T.
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