Tube-number record
EM-779
0 archive entries
EM-779 is a tube type in the TubeDatabase archive (class: Traveling Wave Tube). Recorded specifications: brand Eimac (Eitel-McCullough, Inc.), construction Other / special, base Metal, socket Flexible / flying leads, and maximum plate voltage 3000 V. The archive does not yet hold a photographed example of this type.
BrandEimac (Eitel-McCullough, Inc.)
ClassTraveling Wave Tube
BaseFlexible / flying leads
Filament6.3 V @ 600 mA
Construction
Primary TypeOther / special
EnvelopeCeramic and Metal
Base MaterialMetal
SectionsSingle
Filament / Heater
Heater NotesUnipotential oxide coated cathode; Minimum heating time 60 seconds.
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Saturated CW | 2950 V | — | — | — | 23 mA |
Application Notes
Helix, collector, and anode are internally connected to the tube body. Cooling via passive heat sink.
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