MW 13-35
0 Tubes in archive
BrandPhilips
ClassTelevision Viewfinder Tube
BaseOctal 8-pin
Filament6.3V @ 300mA
Construction
Primary TypeCRT
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirect heating; AC or DC; series or parallel supply
Absolute Maximum Ratings
Plate Voltage11000 V
Grid 2 Voltage500 V
Grid 1 Voltage-200 V
H-C Voltage200 V
Audio Performance
Key Features
- Metal-backed screen
- Aluminized screen
- Indirectly heated
- Magnetic deflection
- Magnetic focusing
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Viewfinder Operation | 7000V | - | - | - | - |
Application Notes
When the tube is used in a series heater chain, the heater voltage must not exceed 9.5 V when the supply is switched on. If necessary a current limiting device must be used.
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