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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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7BFP vacuum tube outline illustration

Tube-number record

7BFP

0 archive entries

7BFP is a tube type in the TubeDatabase archive (class: Cathode-Ray Tube). Recorded specifications: brand Du Mont, construction Display / CRT, socket CRT / special base, maximum plate voltage 4000 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.

BrandDu Mont
ClassCathode-Ray Tube
BaseCRT / special base
Filament6.3 V @ 1800 mA

Construction

Primary TypeDisplay / CRT
Envelope4 x 6-Inch rectangular glass
SectionsThree-beam

Filament / Heater

Heater NotesCommon heater connections for all three beams

Absolute Maximum Ratings

Plate Voltage4000 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Standard Three-Beam Operation3000 V———0.015 mA

Application Notes

Designed for three simultaneous displays with high deflection sensitivity and brightness. Optimum Eb3/Eb2 ratio is 3.0.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Dissipation6 W
    Grid 2 Voltage12000 V
    Grid 1 Voltage-300 V
    H-C Voltage180 V

    Audio Performance

    Key Features
    • Three-beam independently controllable
    • Electrostatic focus
    • Electrostatic deflection
    • Linear post accelerator
    • Metal-backed screen
    • Separately scannable screen areas