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Author Topic: ferrite core ring noise suppressor  (Read 5383 times)

supernova777

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ferrite core ring noise suppressor
« on: April 25, 2015, 08:53:29 PM »
http://en.wikipedia.org/wiki/Ferrite_bead

Quote
A ferrite bead is a passive electric component that suppresses high frequency noise in electronic circuits. It is a specific type of electronic choke. Ferrite beads employ the dissipation of high frequency currents in a ferrite ceramic to build high frequency noise suppression devices. Ferrite beads may also be called blocks, cores, rings, EMI filters, or chokes

i noticed some edirol products came shipped with these to block noise
on headphone + signal inputs + outputs

anyone have experience using these to eliminate unwanted noise?

they are quite cheap:
http://www.ebay.com/itm/6-x-Clip-On-EMI-RFI-Noise-Ferrite-Core-Filter-for-7mm-Cable-/121525349805?pt=LH_DefaultDomain_0&hash=item1c4b79adad

i think i have seen them packaged with items i have bought but i didnt understand what it was for!
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supernova777

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Re: ferrite core ring noise suppressor
« Reply #1 on: April 25, 2015, 08:55:58 PM »
[youtube]http://www.youtube.com/watch?v=81C4IfONt3o[/youtube]
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mrhappy

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Re: ferrite core ring noise suppressor
« Reply #2 on: April 26, 2015, 05:37:56 PM »
That was a pretty interesting video!
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