MX-11769 Image Intensifier F9815

The F9815 is a Gen 3 18mm image intensifier manufactured by ITT Industries Night Vision. The F9815 (MX11769 type) is used in the AN/PVS-14 night vision monocular and several weaponsights. Call or e-mail us for specific applications and use.

The F9815 series image intensifier consists of a high efficiency GaAs photocathode bonded to a glass input window, a microchannel plate (MCP) current amplifier, and a P-43 phosphor screen deposited on non inverting fiber optic output window. The Gen 3 photocathode is very sensitive to low radiation levels of visible and, especially, near infrared light. Tube lifespan is an average of 12,000 hours continuous use.

The F9815 also incorporates a variable gain power supply which gives the user the ability to adjust the tube gain or brightness in the field. This can be extremely helpful under high or low light conditions.

The F9815 is available in several grades (see chart below) based upon performance and blemishes (imperfections in the image). All F9815 tubes come with a tube data sheet listing the following specifications: Signal to Noise Ratio (S/N), Resolution, EBI (electronic background input), HALO, Photocathode Response (PR). These specifications are the most critical to the actual tube performance, as no two tubes are exactly alike.

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GEN III Tube Specifications

  MIL SPEC-ULT MIL SPEC-VG MIL SPEC-YG MIL GRADE HP+ MIL GRADE P+ COMMERCIAL P
Power Supply: Pinnacle Pinnacle Pinnacle Pinnacle Pinnacle Pinnacle
Signal to Noise Ratio: 25.0 min. 25.0 min. 25.0 min. 25.0 min. 20.0 min. 16.2 min.
Photocathode Response: 2200 min. 2000 min. 1800 min. 2200 min. 1750 min. 1350 min.
Halo: n/a ** n/a ** n/a ** n/a ** n/a ** n/a **
Electronic Background Input: 2.5 max. 2.5 max. 2.5 max. 2.5 max. 2.5 max. 2.5 max.
Resolution: 64 lp/mm min. 64 lp/mm min. 64 lp/mm min. 64 lp/mm min. 64 lp/mm min. 57 lp/mm min.
Max Spots Allowed in Each Zone, Spot Size (in.) ZONE
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...........>.012 - .015 0___0___0 0___0___0 0___0___0 0___0___0 0___0___0 0___0___0
...........>.009 - .012 0___0___0 0___0___0 0___0___0 0___0___0 0___0___0 0___0___1
...........>.006 - .009 0___0___1 0___0___1 0___1___1 0___0___1 0___1___1 0___2___2
...........>.003 - .006 0___0___2 0___0___2 0___2___2 0___0___2 0___2___2 0___2___3