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Posted: 8/18/2014 1:43:48 PM EDT
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I have not been able to locate datasheets for any of these tubes. I think tube one is very early Gen 3 based on PC color and date code
Tube 2 is possibley Gen 2 plus based on even number model number Tube 3 is possibly very late Everest series. All are slim ANVIS Tube 1 Circles are from overhead lights-not on output window. 
Tube 2 
Tube 3 
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Quoted: I have not been able to locate datasheets for any of these tubes. I think tube one is very early Gen 3 based on PC color and date code Tube 2 is possibley Gen 2 plus based on even number model number Tube 3 is possibly very late Everest series. All are slim ANVIS Tube 1 Circles are from overhead lights-not on output window. http://i1201.photobucket.com/albums/bb345/falcom5000/m855tubefront.jpg Tube 2 http://i1201.photobucket.com/albums/bb345/falcom5000/littonm844.jpg Tube 3 http://i1201.photobucket.com/albums/bb345/falcom5000/nv5049.jpg Better to ask this in Dino's thread... Anyway, I don't have data on these tubes either - though if you take a picture of "overhead lights" using reflection in the photocathode, up close, I might be able to tell you if it's Gen3 or Gen2... They both have the same color in a lot of litton tubes. That last tube is "leet"... From the serial it's clearly designed for "COD" players - ;) David |
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Tube 1 is Gen 2+ SHP.
I owned a Litton M942 Monocular that used one of those tubes. It was actually pretty darn nice and there were zero distinguishable blemishes in the tube. I upgraded to an ATN Gen 3 device, and ended up sending it back because the Litton Gen 2+ SHP actually outperformed it. The moonlit resolution on it was exceptional, and rivaled or exceeded my older Gen 3 stuff in all but the darkest environments. Product documentation in the manual from Litton. M851 18mm Gen III Anvis Type in the Litton M944 M855 18mm Gen II Plus Anvis Type in the Litton M942 |
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Tube 3. Late Everest series.
Exelis NV5049A- X7C Providing this is accurate. http://webcache.googleusercontent.com/search?q=cache:bb8nSD7HKA0J:search.getitnext.com/beta/new-nvbs-15-tougher-than-an-pvs-15-night-vision-goggle-vhp-everest-tubes/view/171300455823/an%2Bpvs+&cd=1&hl=en&ct=clnk&gl=us |
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