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Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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EM-1011 vacuum tube outline illustration

Tube-number record

EM-1011

0 archive entries

EM-1011 is a tube type in the TubeDatabase archive (class: Traveling Wave Tube). Recorded specifications: brand Eitel-McCullough (Eimac), construction Other / special, base Metal Mounting Flange, socket Coaxial, and maximum plate voltage 2600 V. The archive does not yet hold a photographed example of this type.

BrandEitel-McCullough (Eimac)
ClassTraveling Wave Tube
BaseCoaxial
Filament6.3 V @ 600 mA

Construction

Primary TypeOther / special
EnvelopeCeramic and Metal
Base MaterialMetal Mounting Flange
SectionsSingle

Filament / Heater

MaterialOxide coated
Warm-up Time60s

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Saturated Amplifier2550 V———28 mA

Application Notes

The helix, collector and anode are internally connected to the tube body and are operated at the same potential. Cathode potential should be maintained within 1% to insure proper operation.

Filters

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Manufacturers

Brands

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    Heater NotesHeater voltage should be maintained within +/- 5%

    Absolute Maximum Ratings

    Plate Voltage2600 V
    Grid 1 Voltage-40 V
    Cathode Current30 mA

    Audio Performance

    Key Features
    • Periodic Permanent Magnet (PPM) focusing
    • Rugged ceramic and metal construction
    • Fully temperature compensated
    • Integral heat sink/mounting flange