Pickup design: different coil geometry

Pickup design: different coil geometry

Postby mraugustwest » Mon Apr 09, 2012 1:36 pm

hello all,

so i was daydreaming about trying to build a pickup and am finding that it has quite a bit of overlap with some of the work i do at work. i was wondering if anyone has ever heard of using different coil geometries for the coil? i know the wrapping tiny ~43awg wire in a solenoid is the standard, but has anyone hear of using saddle coils or Helmholtz coils or birdcage coils?

my initial thoughts were that the other geometries would require a fatter magnet wire to be used. i do not have any experience with pickup building, but i am guessing that the fatter the wire the less broadband of a frequency profile of the inductor. i also don't have a clue about how sensitivity is affected by moving to a fatter wire with less turns or a saddle coil or something like that.

like i said, i don't know what i'm doing but i just thought to throw this out there and see if anyone has any experience with this. so just to be more specific, anyone have an opinion of what a pickup that would use a 22awg magnet wire in a saddle coil geo would be like? or if it was even possible? i'm just figuring that this might be fun to tinker around with at work. thanks to any electro-guitar engineers out there who may shine some light on this...
User avatar
mraugustwest
Wall of Sound
Wall of Sound
 
Posts: 14
Joined: Tue Mar 27, 2012 3:08 pm
Location: San Rafael, CA

Re: Pickup design: different coil geometry

Postby milobender » Mon Apr 09, 2012 2:57 pm

I don't know alot about the mechanics involved, but I pretty sure the amount of current generated from a coil is proportional to the number of winds, so fatter wire, fewer winds, less current... There are undoubtably more knowledgeable folks than I here... but, you can make a little electric motor with lots of winds of small wire, and one with fewer winds of bigger wire, and you will see, the small wire/more winds motor will be much more powerful. I would be suprised if different bobbin shapes and winding styles didn't make some sort of difference in sound quality. Make yourself a winder and try it! :smile: :smile: I made one and use homemade pups on both my guitars.
IO Custom Guitars
www.iocustomguitars.com
Everything we know is wrong...
User avatar
milobender
Senior Member
 
Posts: 522
Joined: Mon Mar 31, 2008 8:32 am
Location: SE Wyoming

Re: Pickup design: different coil geometry

Postby drewfx » Tue Apr 10, 2012 4:58 pm

I don't know personally, but you might want to take a look at the music-electronics pickup maker's forum:

http://music-electronics-forum.com/f11/
drewfx
Blues for Allah
Blues for Allah
 
Posts: 72
Joined: Thu Aug 13, 2009 7:25 pm

Re: Pickup design: different coil geometry

Postby mraugustwest » Wed Apr 11, 2012 9:49 am

drewfx wrote:I don't know personally, but you might want to take a look at the music-electronics pickup maker's forum:

http://music-electronics-forum.com/f11/


awesome link! thanks. i hadn't found that site... :cool:
User avatar
mraugustwest
Wall of Sound
Wall of Sound
 
Posts: 14
Joined: Tue Mar 27, 2012 3:08 pm
Location: San Rafael, CA


Return to Guitar Building and Mods

Who is online

Users browsing this forum: No registered users and 0 guests