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winding a voice coil
winding a voice coil
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Old 26th February 2013, 12:46 AM   #11
JMFahey is offline JMFahey  Argentina
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Very hard to find, unless somebody sends you a couple ounces "free sample".
Personally I'd bite the bullet and use roundwire.
Yea, I know, it's not the same .... but you will save your speaker.
Remember that even powerful Eminence and Celestion use copper round wire in 99.9% of their products.
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Old 26th February 2013, 01:27 AM   #12
Magnasanti is offline Magnasanti  United States
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winding a voice coil
Default Voice coil

With the help of JMFahey and others. I was able to get this very nicely built voice coil and others that are near exact replicas
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Old 26th February 2013, 01:34 AM   #13
J.R.Freeman is offline J.R.Freeman  Canada
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Quote:
Originally Posted by JMFahey View Post
Very hard to find, unless somebody sends you a couple ounces "free sample".
Personally I'd bite the bullet and use roundwire.
Yea, I know, it's not the same .... but you will save your speaker.
Remember that even powerful Eminence and Celestion use copper round wire in 99.9% of their products.
Hi JM,

Thank you for your response. Yes, I agree - it is hard to find in low quantities. I am leaning towards round wire. I was hoping with flat wire I could get a few more turns in the gap.

I'll post up some pics if I decide to try and make my own coil. Have a good evening,

Jim
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Old 26th February 2013, 02:52 AM   #14
JMFahey is offline JMFahey  Argentina
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*IF* you are really really into it, you can flatten roundwire (that's what the original flatwire JBL VC were made of in the 40's).
I did it myself, just I didn't find it worth the effort.
Get in touch with a Jeweller, they have a machine called a laminator:
Click the image to open in full size.
If you are reasonable (say, not reducing beyond 3:1 or 4:1), modern enamel stands the lamination crush.
And you end up with a nice "ribbon", only its edges are still somewhat rounded.
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Old 26th February 2013, 03:48 PM   #15
J.R.Freeman is offline J.R.Freeman  Canada
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Hi JM,

Thank you for your suggestion! I appreciate that you would try to offer an alternative to my situation. Thankfully this is just a hobby project for me, and it is not critical that I make the coil exactly as an OEM replacement. If that were the case I would consider your solution, but I think for the effort I will just try round conductor. I'll post up my results if you are interested, though I am a novice with this sort of thing and the quality may not be great!
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Old 26th February 2013, 04:16 PM   #16
JMFahey is offline JMFahey  Argentina
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Hey, we are all DIY here
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Old 24th January 2014, 10:59 AM   #17
cb1 is offline cb1
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Hi Magnasanti,
I've just come across you're "nicely built voice coil," and I think I need to create something very similar. The mid range unit on my Celestion Ditton 66's has a slightly damaged voice coil which I need to repair. (MD500 unit.) Did someone make this voice coil for you, or did you manage to do it yourself?

Best,
Colin
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Old 28th January 2014, 05:47 AM   #18
Magnasanti is offline Magnasanti  United States
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winding a voice coil
With help I was able to get someone to do them for me.
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Old 31st January 2014, 02:48 AM   #19
Greebster is offline Greebster  United States
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Quote:
Originally Posted by JMFahey View Post
*IF* you are really really into it, you can flatten roundwire (that's what the original flatwire JBL VC were made of in the 40's).
I did it myself, just I didn't find it worth the effort.
Get in touch with a Jeweller, they have a machine called a laminator:
Click the image to open in full size.
If you are reasonable (say, not reducing beyond 3:1 or 4:1), modern enamel stands the lamination crush.
And you end up with a nice "ribbon", only its edges are still somewhat rounded.
Proper name is Calender. Worked on ones in the 100ton class and smaller.
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