Tube-number record
T940B
0 archive entries
T940B is a tube type in the TubeDatabase archive (class: Projection Cathode Ray Tube). Recorded specifications: brand English Electric Valve Co. Ltd., construction Display / CRT, base Duodecal, socket Duodecal, and maximum plate voltage 55000 V. The archive does not yet hold a photographed example of this type.
BrandEnglish Electric Valve Co. Ltd.
ClassProjection Cathode Ray Tube
BaseDuodecal
Filament6.3 V @ 0.66 mA
Construction
Primary TypeDisplay / CRT
Envelope5-inch diameter
Base MaterialDuodecal
Sections1
Filament / Heater
Heater NotesIndirectly Heated, Oxide Coated; parallel operation only; heater should preferably be connected to cathode.
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 50000 V | — | — | — | 0.5 mA |
Datasheets
Datasheet: T940B.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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