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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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3UP1 vacuum tube outline illustration

Tube-number record

3UP1

0 archive entries

3UP1 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Raytheon, year 1957, construction Display / CRT, base Plastic, socket Duodecal, and maximum plate voltage 2500 V. The archive does not yet hold a photographed example of this type.

BrandRaytheon
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 0.64 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialPlastic
Sections1

Filament / Heater

Heater Notes0.64 +/- 10% amps

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation2000 V———10 mA

Application Notes

primarily designed for oscilloscope applications. The small size and rectangular face makes it well adapted for use in small portable equipment.

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Brands

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    Plate Voltage2500 V
    Grid 1 Voltage-200 V
    H-C Voltage140 V

    Audio Performance

    Key Features
    • 3" electrostatic focus and deflection
    • Rectangular face
    • Portable equipment