30C3
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BrandEdiswan
ClassMeasurement Cathode Ray Tube
BaseB12D
Filament4V @ 720mA
Construction
Primary TypeCathode Ray Tube
EnvelopeGlass
Base MaterialPlastic/Bakelite
SectionsSingle gun
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage6000 V
Grid 2 Voltage2500 V
Audio Performance
Key Features
- Electrostatic Focus
- Electrostatic Deflection
- 5.25 inch polished glass face
- Side arm deflector plate connections
- Low lead inductance and capacitance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 2kV Operation | 2000V | - | - | - | 0.2mA |
| 6kV Operation | 6000V | - | - | - | 0.2mA |
Application Notes
Intended particularly for H.F. and pulse measurements. The Final Anode and the Bulb coating are brought out separately to allow higher writing speeds or finer spots.
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