Tube-number record
31C13
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31C13 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Ediswan, construction Display / CRT, base Duodecal, socket Duodecal, and maximum plate voltage 10000 V. The archive does not yet hold a photographed example of this type.
BrandEdiswan
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
Envelope6 inch diameter flat face, aluminised
Base MaterialDuodecal
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radio DF Compass | 9500 V | — | — | — | 0.15 mA |
Application Notes
A resistance should be inserted in the anode circuit in order to limit the discharge current to 100 mA(max), in the event of a flash-over inside the tube.
Datasheets
Datasheet: 31C13.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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