Where to find low value air core coils?

[gentlevoice]

Hi diy'ers,

I hope one of you can help with this ... I'm looking for a source of either:

- low value air core foil inductors (10 uH - 50 uH) with a good insulation (polypropylene, teflon or the like) preferably in Europe and I should be able to buy in low No.s and not too expensive, and/or

- a link to a webpage where I can calculate how to design an optimum air core foil inductor (haven't found one googling ..). An online calculator would be much desired ...

Might you have some tips for this? Thanks for reading and maybe replying

Jesper

 

[soundchaser]

Try here...

Inductor Designer / Calculator

http://www.jantzen-audio.com/wp-content/uploads/2013/04/Air-Cored-Wire-Coils-List-18-11-2013.pdf


Hope they work out for you.

 

[Michael Bean]

Here...Coil Inductance Calculator - 66pacific.com

Mike

 

[gentlevoice]

Hi both,

& thanks for replying. Interesting to find out that there is a company like Jantzen in the very same country that I live in I'll see what's available from them ...

Regarding the coil inductance calculator it seems as if both of your suggestions are round wire based calculators ... Might you have a suggestion for a foil calculator?

... and then ... if I end up winding them myself maybe one of you know where I can find some copper foil in ~10 meter lengths (~ 20 - 40 um thickness - it's for a line level application)?

Cheers,

Jesper

 

[xjr100]

- low value air core foil inductors (10 uH - 50 uH) with a good insulation (polypropylene, teflon or the like) preferably in Europe and I should be able to buy in low No.s and not too expensive

Jesper

Jesper, you can buy 0.1mH Mundorf CFC16 or CFC14 and unwind it to the value you need.

 

[gentlevoice]

Hi xjr100 - that's a great tip, thanks! Made me realize that I can buy one of these in a larger size and then unwind and make two, which is what I need.

Thanks again,

Jesper