| ampage Tube Amps / Music Electronics |
For current discussions, please visit Music Electronics Forum. |
ampage archive
Vintage threads from the first ten years
| previous: Dick Re: 3D? -- 9/5/2002 11:19 AM |  |
|---|
Why scatterwind?
 9/5/2002 12:37 PM |
||
Dr Strangelove | Why scatterwind? Dick said:
I've been puzzling over scatterwinding for a while and have come to several conclusions. Short version: The closer one winding is to another, the more they electrically couple and mud up the sound. To lessen this effect, you scatterwind the coil. Long version: John Suhr puts his own pickups on his guitars and said this a few years back: <http://uts.cc.utexas.edu/~mic/info/guitar/Suhr-On-TX-Specials> He uses a $10k programmable coil winder to put 60 different winding patterns on a bobbin. He contends that it repeatably minimizes the coil's distributed or self capacitance -- too much of that and the pickup sound turns muddy. That doesn't mean you need a $10k programmable coil winder to make the best pickups. It only means that some people think scatterwinding is so important and want repeatable results so much that they automate the winding process. To get it, they buy expensive coil winders. Others, like Jason Lollar and Chris Kinman, build their own. <http://www.lollarguitars.com/winding_book.htm> <http://www.kinman.com/html/myStory.htm> The opposite of scatterwinding is called "perfect lay" winding. It assures the lowest volume of coil winds, but it also maximizes distributed capacitance and self-inductance. This is good for relay coils but is another source of muddy sound in a pickup. A good illustration of Self Inductance is at <http://www.cnde.iastate.edu/ncce/EC_CC/Sec.2.4/Sec.2.4.html> It shows how adjacent windings can couple electromagnetically. End of lecture. -drh -- | |
|---|---|---|
| Replies: |
| Mark Hammer Why NOT scatterwind? -- 9/5/2002 4:05 PM |