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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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Tube-number record

1287

0 archive entries

1287 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Raytheon, construction Pentode, socket Loctal, and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.

BrandRaytheon
ClassPentode
BaseLoctal
Filament12.6 V @ 150 mA

Construction

Primary TypePentode
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater Notesa-c or d-c

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Amplifier100 V1900250000—8.9 mA
Class A Amplifier250 V2000800000—9.2 mA

Application Notes

The 1287 is a pentode type amplifier tube with remote cutoff characteristics designed for RF amplifier in radio receivers.

Filters

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Manufacturers

Brands

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    Grid 2 Voltage
    100 V

    Audio Performance

    Key Features
    • Remote cutoff characteristics
    • Designed for RF amplifier in radio receivers