Re: wirewound resistors - how are they made? (and rheostats, same deal?)


dave wrote:
I guess nichrome wire wound around a ceramic core, then coated with (maybe?) epoxy. my biggest question: I assumed the resistance wire was originally UNcoated, bare wire, wrapped with each turn touching the next.



I've had several damaged wirewound resistors in which I could see the wire. There's a gap between each turn, and the lower resistance, generally the wider the gap because the wire is shorter.
.

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