Anyone who has ever wound a toroidal coil by hand can tell you that it’s not exactly a fun job. Even with the kinds of coils used in chokes and transformers for ham radio, which generally have ...

A wire winder made by John Cotherman (photo) and his father Bill mostly uses materials that John had on hand. A cattle operation uses lots of wire to create temporary paddocks and replace old fences.

Anyone who has ever wound a coil by hand has probably idly wondered “How do they do this with a machine?” at some point in the tedious process. That’s about when your attention wanders and the wire ...

Most wire manufacturers have applications for which magnetic particle clutches and brakes are suitable. Consider how a plant might control the rewind tension when transferring wire from one large roll ...