Tube-number record
F 4025
0 archive entries
F 4025 is a tube type in the TubeDatabase archive (class: Traveling Wave Tube). Recorded specifications: brand CSF, year 1965, construction Other / special, base Metal, socket Special / none, and maximum plate voltage 800 V. The archive does not yet hold a photographed example of this type.
BrandCSF
ClassTraveling Wave Tube
BaseSpecial / none
Filament6.3 V @ 450 mA
Construction
Primary TypeOther / special
EnvelopeMetal-Ceramic
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialOxide
Warm-up Time180s
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical at 5.5 GHz | 700 V | — | — | — | 1 mA |
Application Notes
Used in high-frequency wideband receivers to improve signal-to-noise ratio. Designed for shock, vibration, and temperature resistance.
0 results