make my own 1mH inductor?

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I need one for my ob b200 speaker project and am finding no easy buy options under £10 for 2! it strikes me that this inductor is just a few windings of copper cable, of which i have a lot. Is this right, and how do i meadure Henrys with my multimetre? As you may be guessing, i'm not the greatest brain on diy electronics. Thanks, david
 
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