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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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7BP7-B vacuum tube outline illustration

Tube-number record

7BP7-B

0 archive entries

7BP7-B is a tube type in the TubeDatabase archive (class: Cathode-Ray Tube). Recorded specifications: brand General Electric, construction Display / CRT, base Long Medium-shell Octal 8-Pin, socket Octal, and maximum plate voltage 8000 V. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassCathode-Ray Tube
BaseOctal
Filament6.3 V @ 600 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialLong Medium-shell Octal 8-Pin
SectionsSingle

Filament / Heater

Heater NotesAC or DC

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Standard Operation7000 V———0.2 mA

Application Notes

The 7BP7-B is a direct-view glass cathode-ray tube for oscilloscope and radar applications requiring long persistence. Anode voltage should not be less than 4000 volts for adequate brightness.

Filters

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Manufacturers

Brands

    0 results
    Plate Voltage8000 V
    Grid 2 Voltage700 V
    Grid 1 Voltage-180 V
    H-C Voltage180 V

    Audio Performance

    Key Features
    • High-resolution electron gun
    • Small spot size
    • Improved spot shape
    • Long persistence
    • Depth of focus