Thank you for that informative answer:-) Jeff
On Dec 24, 2010, at 3:13 PM, Jason Brown wrote:

> Those are Ferrite Ring Filters. They are designed to help cut down on 
> interference. Here is a link to some of the do it yourself types.
> 
> http://www.camera2000.com/en/2-lots-tdk-clip-on-emi-rfi-filter-snap-around-ferrite.html
> 
> On 12/24/2010 4:49 PM, Jeffrey & Daile Engle wrote:
>> ok, here's a question I've had for awhile now....
>> 
>> You know when you get firewire cables or usb cables or audio cables, you see 
>> those big black plastic cylinder things on the cord about 2 inches from the 
>> end of the cable? what are they?
>> 
>> Jeff Engle
>> Kamiah, Idaho 83536
>> 
> 

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