Tube-number record
TH 9303
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BrandTHOMSON-CSF
ClassImage-Intensifier Tube
BaseSpecial / none
Filament6.25 V @ 30 mA
Construction
Primary TypeElectrostatic Focus
EnvelopePrecision plastic cylinder
Base MaterialSilicone potted
SectionsThree cascaded stages
Filament / Heater
Heater NotesBattery DC input voltage for oscillator
Absolute Maximum Ratings
Plate Voltage6.5 V
Grid 1 Voltage6.5 V
Cathode Current40 mA
Audio Performance
Key Features
- Rugged construction
- Extended red photocathode
- Automatic Brightness Control
- Integral high-voltage supply
- Fiber-optics faceplates
- Fast-recovery (3 seconds) characteristics
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Nominal Operation | 6.25 V | — | — | — | 30 mA |
Application Notes
Image-intensifier tube designed to meet stringent military specifications. The supply design ensures luminance gain and output brightness vary with input illumination to avoid dazzling.
Datasheets
Datasheet: TH9303.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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