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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

6866

0 archive entries

6866 is a tube type in the TubeDatabase archive (class: Display Storage Tube). Recorded specifications: brand RCA, year 1956, construction Display / CRT, base Small-Button Thirty-five-pin (JETEC E31-36), socket Special / none, and maximum plate voltage 14000 V. The archive does not yet hold a photographed example of this type.

BrandRCA
ClassDisplay Storage Tube
BaseSpecial / none
Filament6.3 V @ 600 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialSmall-Button Thirty-five-pin (JETEC E31-36)
SectionsWriting Section and Viewing Section

Filament / Heater

Heater NotesSeparate heaters for Writing and Viewing sections

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Viewing Section10000 V————

Application Notes

The cathode of the Writing Gun is operated at approximately -2500V with respect to the Viewing Gun cathode (usually grounded). Magnetic shielding is required.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Voltage14000 V
    Grid 2 Voltage2750 V
    H-C Voltage125 V

    Audio Performance

    Key Features
    • Non-equilibrium writing
    • Grid-control reading
    • 4-inch diameter display
    • Yellow phosphor (High-Visual-Efficiency Type)
    • Aluminized screen
    • Electrostatic focus and deflection