[sdiy] Practical inductor question

synth synthesizerdiy at gmail.com
Sun Nov 24 18:17:04 CET 2013

Where is a good place to buy the wire?  Do you have any images of the  
inductors you are using?  I would like to see if it would be possible  
to make some coils for a Farfisa with modern parts.

On topic the Farfisa cores have some glue on the end of the wrap and I  
have seen some tape on other coils at the end of the wrap.  I would  
suggest to leave a bit of slack so you could resolder if needed in the  

On Nov 24, 2013, at 4:50 AM, David Ingebretsen wrote:

> I'm building a Moog 914 filter clone in a euro format, using  
> inductors hand
> made by Carsten Tonesmann (thanks Carsten). The inductor wire is  
> very fine
> and although I am bolting the inductors down with nylon hardware, the
> bobbins are free to rotate inside until the wire stops it. I'm not  
> gigging
> this stuff, but I'd like to make sure the bobbin's to shake and  
> eventually
> fatigue the wire and break it.
> I thought I could just put a dob of silicone sealant in the gap  
> where the
> wire exits the core (like these ones:
> http://www.fair-rite.com/cgibin/catalog.pgm?THEONEPART=5698181221&SEARCHAGAI
> N=Y#select:onepart).
> Silicone doesn't have any weird properties that will mess with the
> inductance does it? I can't see how it could, but I thought I'd ask  
> before I
> do something that will be very hard to undo.
> Thanks
> David
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