Unfortunately inductance is usually not a friend in these ... I briefly light up a nixie tube with a big ‘ole coil and a 9V battery. The demonstration is meant to show that inductors really ...

There are formulæ for deeply wound coils, and for coils of spaced turns of round wire or of flat tape. The discussion of inductance at high frequencies is less precise than the rest of the book ...

[Homemade Audio] takes us through their manufacturing process for these coils, and the result is a watchable video resulting in some very well-made components. The adjustable former is a machined ...

So, a copper coil that is used for either inductance, resistance or sometimes to move things, which is the electromagnetic properties of coils. So, it’s basically an old sub-supplier to IBM ...