Tube-number record
LD-550B
0 archive entries
LD-550B is a tube type in the TubeDatabase archive (class: Traveling Wave Tube). Recorded specifications: brand NEC, construction Other / special, base Metal, socket Waveguide, maximum plate voltage 3000 V, and maximum plate dissipation 56 W. The archive does not yet hold a photographed example of this type.
BrandNEC
ClassTraveling Wave Tube
BaseWaveguide
Filament6.3 V @ 600 mA
Construction
Primary TypeOther / special
EnvelopeMetal with Radiator
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialOxide Coated
Warm-up Time90s
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 7.2 GHz Typical | 1600 V | — | — | — | 33 mA |
| 7.8 GHz Typical | 1600 V | — | — | — | 33 mA |
| 8.5 GHz Typical | 1600 V | — | — | — | 33 mA |
Application Notes
Recommended to be operated in periodic permanent magnet focusing mount. Horizontal mounting preferred. Forced air cooling required if ambient exceeds 55°C.
0 results