On Wed, 7 Dec 2005 23:54:49 -0500, Martin, AA6E wrote:
>I've often had RFI on computer amp/speakers, but winding the Audio
>input on a ferrite core about 6-8 turns normally fixes them,
Yes. Virtually computer audio gear and sound cards have pin 1
problems, which is the basic cause of the RFI,. and the mulit-turn
ferrite choke is a pretty good fix. The number of turns and the
ferrite material depends on the frequency that is getting in.
Jim Brown K9YC
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