Night Vision Atn ps15 blinking left eye?

Machinist-Mills

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Banned !
Minuteman
Jul 5, 2014
155
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I'm leaving the upper peninsula of Michigan and its day 14 of rain and my ps15 didn't get that wet but ever since the other night they've been blinking in the left tube. It doesn't blink in complete darkness but even the slightest bit of Illumination or light makes it blink and it blinks faster and faster the more light and then turns off. I don't know if this is how the tube dies because I do use these quite a bit but.. any info would be great.
 
There could be an issue with the power supply that is causing problems with the aitogating. It sounds like the power supply could be lowering the voltage to the micro channel plate a bit too low when it senses a high light environment. I’m sure you already have but if you haven’t, I would definitely try a new battery before I panicked. What tubes are in the 15’s?

Jay
 
Bump with pictures I found the problem
 

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The diodes were broke. Don't know what they do but without them the left eye blinks.
When I touch the wires together that went to the diodes, the goggles turn off so that's not the answer.
 

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Looks like a pair of Reed Switches for the helmet mount auto cut-off.

Appears as though the glass capsule is shattered on one of them, hard to say for certain. Those glass capsules don't take to applied force, it doesn't take much to break them.

Was the left tube having the issue before the reed switch was broken?

Though far from impossible, it's unlikely these switches are the cause of your original issue.

Insulate those bare wires and check the power going directly to the problem tube or both tubes if you like.
 
When I first got the unit used it did have an auto shut-off when I tilted it up, but after a year or so that went away I didn't even notice at first. Is that what these Reed switches do? Can I just replace them with a resistor or something?