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BrandFerranti
ClassFlying Spot Scanner Tube
BaseB12A (Duodecal)
Filament6.3V @ 300mA
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage25000 V
Cathode Current0.2 mA
H-C Voltage100 V
Audio Performance
Key Features
- Metal backed screen
- Magnetic focus
- Electrostatic deflection
- Green fluorescence
- Ultra-short persistence
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 20000V | - | - | - | 0.15mA |
Application Notes
The grid should never be positive with respect to the cathode. Shielding may be required to protect against X-ray radiation when operated at high anode voltages.
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