1000 ferrite beads rfi
1000 or more each. Quantity: Minimum order of 5 pieces. FERRITE BEAD, L X 14MM OD X ID. Round cable the ferrite five times. Remove the wire and you've got a perfectly useable bead for RFI /EMI suppres.
EMI/ RFI Suppressors & Ferrites are available at Mouser Electronics. Mouser offers inventory, pricing, 10: 100: 500: : View.
Long article with troubleshooting tips and tricks for reducing RFI for the ham radio There was some discussion of the effectiveness of various ferrite chokes a few . chokes and caps having a value anywhere in the range of 1000 to 3000 pF.