Tube-number record
MW 31-74
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BrandPhilips
ClassTelevision Picture Tube
BaseDuodecal
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass with filterglass face plate
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated by A.C. or D.C.; series or parallel supply. In a series chain, switch-on voltage must not exceed 8.5 V.
Absolute Maximum Ratings
Plate Voltage11000 V
Grid 2 Voltage410 V
Cathode Current5 mA
H-C Voltage200 V
Audio Performance
Key Features
- Ion trap
- Filterglass face plate
- Magnetic deflection
- Magnetic focusing
- Indirect heating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation 1 | 7000 V | — | — | — | — |
| Typical Operation 2 | 9000 V | — | — | — | — |
Application Notes
Identical to type MW 31-16 except for the filterglass face plate. The anode connection must be in a vertical plane through the axis of the tube. Power supply should be limited-energy type to limit short-circuit current to 5 mA.
Datasheets
Datasheet: MW31-74.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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