MF31-55
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BrandPhilips
ClassRadar Cathode Ray Tube
BaseDUODECAL 7-pin
Filament6.3V @ 300mA
Construction
Primary TypeCathode Ray Tube
EnvelopeGlass, round metal-backed
SectionsSingle
Filament / Heater
Heater NotesIndirect by A.C. or D.C.; series or parallel supply
Absolute Maximum Ratings
Plate Voltage15500 V
Grid 2 Voltage600 V
Grid 1 Voltage-250 V
Cathode Current0.15 mA
H-C Voltage150 V
Audio Performance
Key Features
- Metal-backed screen
- Magnetic focusing
- Double magnetic deflection
- Round screen
- Aluminized
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radar Operation | 15000V | - | - | - | - |
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.
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