I want to make a few single string diddley bow pickups with sewing machine bobbins.Would it be ok to use aluminium bobbins?....

Views: 456

Reply to This

Replies to This Discussion

Bobbins should be non-conductive. Wood or acrylic thin boards around 1/8" or 3/16" would be recommended. Or any  non-conductive material, even a vinyl record.

Coils need to be suspended, if you used aluminum, you can fry the whole shebang.

=D actually, you'll get nasty feedback, louder and worser than the 60 cycle hum.

Thank you.That's what I suspected,,,,

Just do like I did. Crack open an old wall wart, extract the transformer and use that as the coil.

You can then hide it in the bow and use a metal sewing machine bobbin for decoration on top of the coil. Just make sure there is a magnet inside the coil itself.

On my prototype 2 string bow, I have a big metal washer on top and it works just fine.

Thank you,Francois...

If you are talking about using an aluminum bobbin for wrapping the coil wire of a magnetic pickup, I'd say you will get something between interesting and disappointing.  Although aluminum is not Ferromagnetic, it does have some strange interaction with moving magnetic fields reacting with an induced current with an opposing magnetic field axis. 

An AC magnet will hover over an aluminum plate. 

Thank you,JL.I think I will stick with making bobbins from plastic or wood...

It is an interesting question, because in times gone by, we had a thread regarding so called "induction pickups", unfortunately, the object that initiated the thread had a dis agreement with someone and in a hissy fit closed his membership/ links with CBN, unfortunately due to the original initiator "owning" the thread, when he left , some 30 or 40 pages of development went as well. But, more relevant to your query is the fact that, essentially the the bobbins were a conductive material, but also the actual coil, but they needed separation/ isolation  from the magnets, I suggest that assuming you are using cylindrical magnets,a simple tube of heat shrink around them should see you ok, there is nothing I'M aware of that says the bobbin can't be alive, but, you do need separation from the mag field, of course you also have the issue where the actual winding on the bobbin needs to have a start and finish, but that is pretty easy to overcome

That's interesting.Perhaps I will experiment with them and see what the outcome is....

i did think that the bobin would act like a primary coil and the copper windings as a secondary.. in the induction pickup the secondaries were about 500 to 1000 windings... 

even using the way back machine the induction pickup thread is gone.. sad times whem most of the thread wasnt his!

https://web.archive.org/web/20161025131400/https://cigarboxnation.c...  found some of it!!

I will have a good look at that...Thanks

Was just looking at the patents...That's a pretty strange arrangement that they came up with.

Lots of talk about them here https://groupdiy.com/index.php?topic=27929.0

Personally, I really don't know if the sound is worth the effort. The way it's built it reminds me a bit of those two part bass pickups where the high and low strings get recorded separately in order to enhance the tone.

I have the feeling that those lace pickups are a bit like that but in a single package with an overly complicated layout.

Francois, they are remarkably simple to make in the basic form, but need a low to high impedance in line mic transformer, the Lace pickups don't require this as they have added circuitry to overcome it.

RSS

The Essential Pages

New to Cigar Box Nation? How to Play Cigar Box GuitarsFree Plans & How to Build Cigar Box GuitarsCigar Box Guitar Building Basics

Site Sponsor

Recommended Links & Resources


Forum

String grounding

Started by John B Treutlein in Building Secrets, Tips, Advice, Discussion. Last reply by Taffy Evans 12 hours ago. 1 Reply

DYI Box

Started by Jerry Draper in Using cigarboxnation.com - posting, profiles, web help. Last reply by John B Treutlein yesterday. 12 Replies

Neck though corner

Started by Engblom in Building Secrets, Tips, Advice, Discussion. Last reply by Infirmity Citrus President Jan 28. 2 Replies

Canjo pickups

Started by David Blackburn in Building Secrets, Tips, Advice, Discussion. Last reply by Byrd Franklin Dec 22, 2022. 5 Replies

Blog Posts

A Tribute

Posted by Ghostbuttons on January 15, 2023 at 12:00pm 1 Comment

Let’s talk Aeolian…

Posted by BrianQ. on August 26, 2022 at 5:05pm 0 Comments

Latest Activity

Keith Rearick liked Poorness Studios's video
36 minutes ago
Keith Rearick liked Doug Thorsvik's video
40 minutes ago
Keith Rearick liked Poorness Studios's video
48 minutes ago
Keith Rearick liked AGP #'s photo
49 minutes ago
Keith Rearick liked AGP #'s photo
50 minutes ago
Keith Rearick liked AGP #'s photo
50 minutes ago
Doug Thorsvik commented on Poorness Studios's video
Thumbnail

If You're Gonna Play in Texas (recorded at Billy Bob's) | Alabama cover

"1-finger CBGslinging with your 3-string CBG; love it! Great job Kale. Please send the chart so I…"
5 hours ago
Poorness Studios posted a video

If You're Gonna Play in Texas (recorded at Billy Bob's) | Alabama cover

NOTE: the temp was low and the guitar refused to stay in tune but I still liked this take best. I decided to take a trip to the legendary Billy Bob's Texas (...
5 hours ago
Uncle John commented on AGP #'s photo
6 hours ago
Uncle John commented on Doug Thorsvik's video
6 hours ago
Bernie Edwards commented on AGP #'s photo
11 hours ago
Taffy Evans liked Jerry Draper's discussion DYI Box
12 hours ago

Music

© 2023   Created by Ben "C. B. Gitty" Baker.   Powered by

Badges  |  Report an Issue  |  Terms of Service

\uastyle>\ud/** Scrollup **/\ud.scrollup {\ud background: url("https://storage.ning.com/topology/rest/1.0/file/get/963882636?profile=original") no-repeat scroll 0 0 transparent;\ud bottom: 25px;\ud display: inline !important;\ud height: 40px;\ud opacity: 0.3 !important;\ud position: fixed;\ud right: 30px;\ud text-indent: -9999px;\ud width: 40px;\ud z-index: 999;\ud}\ud.scrollup:hover {\ud opacity:0.99!important;\ud}\ud \uascript type="text/javascript">\ud x$(document).ready(function(){\ud x$(window).scroll(function(){\ud if (x$(this).scrollTop() > 100) {\ud x$('.scrollup').fadeIn();\ud } else {\ud x$('.scrollup').fadeOut();\ud }\ud });\ud x$('.scrollup').click(function(){\ud x$("html, body").animate({ scrollTop: 0 }, 600);\ud return false;\ud });\ud });\ud \ua!-- End Scroll Up -->