Tube-number record
MF 31-22
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MF 31-22 is a tube type in the TubeDatabase archive (class: Radar Tube). Recorded specifications: brand PHILIPS, construction Display / CRT, socket Duodecal, and maximum plate voltage 12000 V. The archive does not yet hold a photographed example of this type.
BrandPHILIPS
ClassRadar Tube
BaseDuodecal
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeMetal-backed (aluminized) screen
SectionsSingle gun
Filament / Heater
Heater NotesIndirect heating, series or parallel supply. In series chain, heater voltage must not exceed 9.5V when switched on.
Absolute Maximum Ratings
Plate Voltage
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 9000 V | — | — | — | — |
Application Notes
The tube has a screen which is liable to burn if a stationary or slowly moving spot is used even with low values of mean beam current.
Datasheets
Datasheet: MF31-22.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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