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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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2E31 vacuum tube outline illustration

Tube-number record

2E31

0 archive entries

2E31 is a tube type in the TubeDatabase archive (class: Subminiature Pentode). Recorded specifications: brand Raytheon, year 1956, construction Pentode, base Glass, socket Flexible / flying leads, and maximum plate voltage 45 V. The archive does not yet hold a photographed example of this type.

BrandRaytheon
ClassSubminiature Pentode
BaseFlexible / flying leads

Construction

Primary TypePentode
EnvelopeT-2X3 Glass
Base MaterialGlass
Sections1

Filament / Heater

Absolute Maximum Ratings

Plate Voltage45 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 Amplifier22.5 V500350000—0.4 mA

Application Notes

Designed for use as an RF or IF amplifier in applications requiring economy of space, weight and battery drain. Filament voltage must never exceed 1.55 volts.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Grid 2 Voltage
    45 V
    Cathode Current1 mA

    Audio Performance

    Key Features
    • Filament type
    • Fully-shielded
    • Subminiature construction
    • Flexible terminal leads