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New 4x30mm Night Vision Surveillance Scope Binoculars

220544737984 0 New 4x30mm Surveillance Night Scope Vision Binoculars US $0.90 (0 Bid)
End Date: Monday Jan-25-2010 2:56:41 PST
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NEW 4X30MM Surveillance Night Scope Vision Binoculars

220544738218 0 New 4x30mm Surveillance Night Scope Vision Binoculars US $0.44 (0 Bid)
End Date: Monday Jan-25-2010 2:57:57 PST
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KM 836 TACTICAL Military Marine compact Binoculars
KM 836 TACTICAL Military Marine compact Binoculars
Paypal   US $119.99
Bushnell Marine 7x50mm Binoculars
Bushnell Marine 7x50mm Binoculars
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NEW TASCO 7x50mm Waterproof Marine Binoculars OS19
NEW TASCO 7x50mm Waterproof Marine Binoculars OS19
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Binoculars 4x30mm Night Vision Surveillance Scope

280442902383 0 Kids Toy Binoculars 4x30mm Night Vision Stealth Light US $0.81 (0 Bid)
End Date: Monday Dec-28-2009 2:39:45 PST
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Kids Toy Binoculars 4X30mm Night Vision Stealth Light

300379722436 0 Kids Toy Binoculars 4x30mm Night Vision Stealth Light US $7.62
End Date: Monday Dec-28-2009 2:41:36 PST
Buy It Now for only: US $7.62
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STEINER WEST GERMANY MILITARY MARINE BINOCULARS 7X50
STEINER WEST GERMANY MILITARY MARINE BINOCULARS 7X50
Paypal   US $75.00
7x50 RC MARINE BINOCULARS W ILLUM COMPASS RF RETICLE
7x50 RC MARINE BINOCULARS W ILLUM COMPASS RF RETICLE
Paypal   US $99.99
Tasco Marine Series Rubber 7x50mm Binoculars W Case
Tasco Marine Series Rubber 7x50mm Binoculars W Case
Paypal   US $.99
WEST MARINE Binoculars 7x50 350ft 1000 yds Field 66
WEST MARINE Binoculars 7x50 350ft 1000 yds Field 66
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WWII CARL ZEISS JENA 6x30 MARINE binoculars MILITARY
WWII CARL ZEISS JENA 6x30 MARINE binoculars MILITARY
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Vintage 1973 74 Marine Binoculars Glass Avon Bottle
Vintage 1973 74 Marine Binoculars Glass Avon Bottle
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Why Do My Night Vision Binoculars Whine?

I bought a pair of 1st generation Seben binoculars and am curious as to what causes the whine when they are active. I understand the principle behind how they work, but what causes the whine?

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logo Why Do My Night Vision Binoculars Whine?
NEW TASCO 7x50mm Waterproof Marine Binoculars OS19
NEW TASCO 7x50mm Waterproof Marine Binoculars OS19
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7x50 MARINE BINOCULARS W RANGEFINDER RETICLE by BARSKA
7x50 MARINE BINOCULARS W RANGEFINDER RETICLE by BARSKA
Paypal   US $99.99
Avon Marine Binoculars Decanter
Avon Marine Binoculars Decanter
Paypal   US $.99

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