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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