Results 1 to 8 of 8

Thread: Does scatter winding change DC resistance?

  1. #1
    Junior Member Guitarfix's Avatar
    Join Date
    Jan 2019
    Location
    Denmark
    Posts
    12
    Thumbs Up/Down
    Received: 5/0
    Given: 3/0
    Rep Power
    0

    Does scatter winding change DC resistance?

    Hi,

    New here and new to pickup winding, but with 20 years experience as a guitar tech.

    I will start to offer rewinds and think I have most of the theory down (and have made some pickups from scratch).

    However, one thing puzzles me..

    Having two identical pickups, same wire, same number of turns, same tension, etc.., can the DC resistance change depending on the degree of scatter??

    I think the answer is yes(?), but how/why?

    Thanks

    My homemade pickup winder:
    Click image for larger version. 

Name:	puw.jpg 
Views:	63 
Size:	360.3 KB 
ID:	54143

    0 Not allowed! Not allowed!
    Last edited by Guitarfix; 06-27-2019 at 01:19 PM.

  2. #2
    Senior Member
    Join Date
    Mar 2018
    Location
    Germany
    Posts
    1,904
    Thumbs Up/Down
    Received: 1,431/1
    Given: 834/2
    Rep Power
    4
    The DCR depends on wire gauge (determining its resistance per foot) and total wire length (and somewhat on temperature).
    Scatter winding requires more wire length per turn, so total wire length increases for the same number of turns.

    As PU output in a given design is mainly determined by the number of turns, I wouldn't worry about DCR except for quality/consistency checks.

    1 Not allowed! Not allowed!
    - Own Opinions Only -

  3. #3
    Junior Member Guitarfix's Avatar
    Join Date
    Jan 2019
    Location
    Denmark
    Posts
    12
    Thumbs Up/Down
    Received: 5/0
    Given: 3/0
    Rep Power
    0
    Quote Originally Posted by Helmholtz View Post
    Scatter winding requires more wire length per turn, so total wire length increases for the same number of turns.
    Of course..., that makes perfect sense. Why didn't I think of that

    Thanks a lot

    0 Not allowed! Not allowed!

  4. #4
    Member
    Join Date
    Jun 2019
    Location
    FRANCE
    Posts
    68
    Thumbs Up/Down
    Received: 4/0
    Given: 8/0
    Rep Power
    0
    Yes but with scatter wind you put less turns, no ?

    0 Not allowed! Not allowed!

  5. #5
    Junior Member Guitarfix's Avatar
    Join Date
    Jan 2019
    Location
    Denmark
    Posts
    12
    Thumbs Up/Down
    Received: 5/0
    Given: 3/0
    Rep Power
    0
    Quote Originally Posted by tepsamps View Post
    Yes but with scatter wind you put less turns, no ?
    Yes, if you want the same resistance as a non-scatter wound. You will have more layers with scatter wound, though.

    You can actually see the estimated effect and ratio between scatter and non-scatter, by using the coil-estimator: http://www.jdguitarworks.com/coil/coil.html

    0 Not allowed! Not allowed!
    Last edited by Guitarfix; 06-28-2019 at 01:00 PM.

  6. #6
    Senior Member
    Join Date
    Mar 2018
    Location
    Germany
    Posts
    1,904
    Thumbs Up/Down
    Received: 1,431/1
    Given: 834/2
    Rep Power
    4
    Quote Originally Posted by tepsamps View Post
    Yes but with scatter wind you put less turns, no ?
    You might but less turns means less output.

    0 Not allowed! Not allowed!
    - Own Opinions Only -

  7. #7
    Senior Member
    Join Date
    May 2006
    Posts
    3,839
    Thumbs Up/Down
    Received: 185/2
    Given: 19/0
    Rep Power
    18
    All true, but I think one needs to factor in bobbin characteristics, insomuch as the type of coil shape will constrain, or unconstrain, just how "scattered" the windings can be. So, for instance a Strat-type single coil is taller than a PAF-type bobbin, which in turn is taller than a Jazzmaster coil. The taller the coil, the greater the possibility that any single turn will venture further from the middle, or from the previous turn, adding more to the circumference. So, call it bias on my part, but I would place little credence in claims of "scatter-winding" in low-profile pickups that restrict how different successive turns can be from each other.

    1 Not allowed! Not allowed!

  8. #8
    Old Timer tedmich's Avatar
    Join Date
    Apr 2008
    Location
    Sonoma CA
    Posts
    3,315
    Thumbs Up/Down
    Received: 201/2
    Given: 70/2
    Rep Power
    15
    I believe in makes it more "complex" and "dense"
    (also expensive, there's only hard evidence for this)

    0 Not allowed! Not allowed!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Traverser and Scatter winding desnity
    By kayakerca in forum Beginner/ Hobbyist
    Replies: 6
    Last Post: 10-25-2011, 10:31 PM
  2. Replies: 6
    Last Post: 03-08-2011, 05:18 AM
  3. Few questions about scatter winding
    By fjgaston in forum Pickup Makers
    Replies: 13
    Last Post: 07-11-2008, 11:32 AM
  4. Measuring DC resistance while winding
    By Meowy in forum Pickup Makers
    Replies: 3
    Last Post: 01-23-2008, 01:52 AM
  5. Scatter Winding?
    By nickt in forum Pickup Makers
    Replies: 5
    Last Post: 10-26-2007, 06:31 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •