moyiesledhead
Active VIP Member
"A ferrite bead with a conductor through it is an inductor and so is used as a low pass filter. Typical use is for power cables to reduce EMI (electromagnetic interference). They are ferrite (magnetic) rings, over cables in order to suppress noise and filter out unwanted external interference."
Correct. More commonly called an RF choke.
Sorta like this one. Hmmmmmmm....my desk is dusty.