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

 

US Auctions Australian Auctions Austrian Auctions Belgian Auctions Canadian Auctions French Auctions German Auctions Indian Auctions Irish Auctions Italian Auctions Dutch Auctions Polish Auctions Spanish Auctions Swiss Auctions UK Auctions

Best Match Time: ending soonest Time: newly listed Price: lowest first Price: highest first Price + Shipping: lowest first Price + Shipping: highest first

HQ Binoculars 20 x 70 Spy Military Grade Bino Sporting Game Bird Watching Tools    US $49.95

1966 BUSHNELL BINOCULARS HUNTING BIRD WATCHING PRINT AD    US $9.00

Zion PowerView 20x 280x60mm Military Super Zoom Binoculars Bird Watching Hunting    US $89.99

Tasco Binoculars 7 X 50mm bird watching hunting camping fishing outdoors    US $9.99

SWIFT OPTICS Eaglet 731 Bird Watching BIRDING Binoculars 7 X 25 Japan W Case NR    US $129.99

a great pair of binoculars good for hunting fishing bird watching exc    US $30.00

Here are some items you might buy on Ebay auctions:

Zion 20X-280X60MM Military Super Power Zoom Binoculars

US $79.99 (0 Bid) End Date: Monday Dec-07-2009 11:55:15 PST Bid now | Add buying drugs online to watch list

New 4x30mm Surveillance Scope Night Vision Binoculars

US $0.99 (0 Bid) End Date: Monday Dec-07-2009 11:57:35 PST Bid now | Add to watch list

US Auctions Australian Auctions Austrian Auctions Belgian Auctions Canadian Auctions French Auctions German Auctions Indian Auctions Irish Auctions Italian Auctions Dutch Auctions Polish Auctions Spanish Auctions Swiss Auctions UK Auctions

Best Match Time: ending soonest Time: newly listed Price: lowest first Price: highest first Price + Shipping: lowest first Price + Shipping: highest first

10 x 50 Bird Watcher Watching BINOCULARS CASE STRAP    US $23.62

HQ Binoculars 20 x 70 Spy Military Grade Bino Sporting Game Bird Watching Tools    US $49.95

Zion PowerView 20x 280x60mm Military Super Zoom Binoculars Bird Watching Hunting    US $89.99

Tasco Binoculars 7 X 50mm bird watching hunting camping fishing outdoors    US $9.99

a great pair of binoculars good for hunting fishing bird watching exc    US $30.00

TASCO COMPACT BINOCULARS W POUCH STRAP BIRD WATCHING    US $7.99

Here are some items you might buy on Ebay auctions:

25x100 WATERPROOF BINOCULARS! GREAT FOR ASTRONOMY

US $329.99 End Date: Saturday Dec-05-2009 4:13:10 PST Buy It Now for only: US $329.99 Buy online pharmacy without prescription it now | Add to watch list

Night Working 15x- 180x100 IPD Zoom Binocular -- Bi 3

US $35.99 End Date: Saturday Dec-05-2009 4:13:22 PST Buy It Now for only: US $35.99 Buy it now | Add to watch list

US Auctions Australian Auctions Austrian Auctions Belgian Auctions Canadian Auctions French Auctions German Auctions Indian Auctions Irish Auctions Italian Auctions Dutch Auctions Polish Auctions Spanish Auctions Swiss Auctions UK Auctions

Best Match Time: ending soonest Time: newly listed Price: lowest first Price: highest first Price + Shipping: lowest first Price + Shipping: highest first

10 x 50 Bird Watcher Watching BINOCULARS CASE STRAP    US $23.62

HQ Binoculars 20 x 70 Spy Military Grade Bino Sporting Game Bird Watching Tools    US $49.95

Zion PowerView 20x 280x60mm Military Super Zoom Binoculars Bird Watching Hunting    US $89.99