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clip-on chokes:




The quick and dirty way to deal with interference over a wire is by clamping a choke on it. This only works
to stop "common mode" noise that's traveling over all the wires at once. For "differential mode" noise that's
doing the "push-pull" thing between two wires in the cable, these chokes won't help very much.



Clip-on Ferrite 60pc variety ($17 at Amazon)


Clip-on Ferrite 60pc variety:



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