FW-109
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BrandITT Laboratories
ClassImage Tube
Construction
Primary TypeImage Intensifier
EnvelopeGlass with 0.0004 inch Mica window
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage16000 V
Audio Performance
Key Features
- Thin film mica exit window (0.0004 inch)
- Hermetically sealed anode terminal
- Allows direct photography contact without lens system loss
- Gains of 50 to 100 over direct photography reported
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Image Intensification | 16000V | - | - | - | - |
Application Notes
The FW-109 is designed for photography of stellar spectra where film is brought into intimate contact with the mica window to minimize resolution loss.
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