winding coils around magnets

[walters]

honeycomb winding coil

Whats the difference between Formvar wire VS Enamel wire ?

Does the Scatter pattern produce different pickup outputs?

Whats the difference between fast scatters VS Slow scatters winding?

The Scatter pattern makes the LCR different because mostly the inductance and capacitance and resistance are in parallel when winding a pickup but when doing different scatter patterns it changes the inductance and capacitance and resistance to get like series/parallel combinations. The scatter pattern produces different kinds of series/parallel coil turns?

 

[Sceadwian]

hand winding coils

Scattering vs machine winding will produce different results because hand winding a coil (scattering) will produce different distance between each loop of wire. This will have two effects, each coil will be of a slightly different inductance in relation to it's neighbooring coils, and the capacitance will likley be lower because the coils aren't so tightly packed as on a machine wound coil. The variations in the LC will cause a filtering effect to take place which is why they say scattered coils produce 'charactor' on the pickup. The DC resistance stays constant depending on the length of the wire.

 

[walters]

Thanks for the information

do u know any other kinds of different winding techiques used for coils or transformers ?

 

[bjeservice]

One should remember the coil of printed circuit board that is look like several squared concenterd loops of the printed copper tray on PCB. this one has low inductance but it is working in high frequency range to take its effect.

 

[Kral]

walters,
Another method that is used for RF coils is "Honeycomb" winding. The turns are wound at an angle with respect to the axis of the coil. Each layer has an angle that is the negative of the angle of the previous winding. The result is that the turns of adjacent windings cross each other at an angle, and thus the inter-winding capcacitance is reduced.
~
If you would like a demonstration, go to a fabric store and ask the nice lady to give you a demonstration of a yarn winder. No, I'm not kidding! If you haven't seen one operate, you'll be fascinated. The result is a honeycomb coil. To see a picture, go to
h**p://www.joann.com/catalog.jhtml?CATID=53007&PRODID=80806
Regards,
Kral