Tube-number record
EM-1011
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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
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
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Saturated Amplifier | 2550 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.
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