Tube-number record
GL-6849
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BrandGeneral Electric
ClassTelevision Camera Tube
BaseDiheptal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialAnnular Shoulder Base and Diheptal Base
SectionsImage, Multiplier, Scanning
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage1350 V
Grid 2 Voltage350 V
Grid 1 Voltage-125 V
H-C Voltage125 V
Audio Performance
Key Features
- Magnetic Focus
- Magnetic Deflection
- Low-light-level pickup
- Wide target-to-mesh spacing
- High blue and green sensitivity
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 1250 V | — | — | — | 0.003 mA |
Application Notes
Television camera tube for extremely low-light-level pickup use such as starlight illumination or fluoroscopic screens. Wide spacing reduces lag and increases signal-to-noise ratio.
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