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Tube Database (7,341 tube types · 1,270 archive entries)

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T975D vacuum tube outline illustration

Tube-number record

T975D

0 archive entries

T975D is a tube type in the TubeDatabase archive (class: Monitor Tube). Recorded specifications: brand English Electric Valve Co. Ltd., construction Display / CRT, socket Duodecal, and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.

BrandEnglish Electric Valve Co. Ltd.
ClassMonitor Tube
BaseDuodecal
Filament6.3 V @ 300 mA

Construction

Primary TypeDisplay / CRT
Envelope21-inch diagonal, rectangular
SectionsSingle

Filament / Heater

Heater NotesSuitable for series or parallel operation. Surge heater voltage must not exceed 9.5 V r.m.s.

Absolute Maximum Ratings

Plate Voltage

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Monitor/Radar15000 V————

Application Notes

21-inch diagonal rectangular display tubes for monitor and radar applications. Features long necks enabling two sets of scan coils for display of alpha-numeric characters.

Datasheets

Datasheet: T975D.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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Manufacturers

Brands

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    18000 V
    Grid 2 Voltage600 V
    Grid 1 Voltage200 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Long neck for dual scan coils
    • Aluminised screen
    • Tinted faceplate
    • Flicker free display