oldgrandpainmi Posted June 10, 2006 Report Share Posted June 10, 2006 Hello all,I hope you can give me advice/information an where I can get some coil forms for construction of a 1mH and .22mH air core crossover inductors. Yeah, I could buy them a lot easier from a couple sources, but I'd like to see if I could build them for fun, first! I had been hoping to salvage some from an old speaker, but have yet to run across any. I used to throw these things out regularly, but have yet to see any now that I need them!!!! Murphy's Law strikes again!!!The forms need to have a 1.6" (1.5") and 1.16" (1.25") core diameters, and the heights need to be .4" and .3" respectively, per an inductor program I found. The core diameter is I bit bigger that I want, but it is due to the magnet wire diameter I am going to use (22guage). This will put the power rating of each at about 100w RMS.I don't have a pic of the form, but if you can picture an empty fishing line spool, this is what they look like.I've emailed several places, including Amidon, for forms and/or information, but still have had no reply's.I am looking for your guy's advice first before attempting another avenue.Thanks!!oldgrandpainmi Quote Link to comment Share on other sites More sharing options...
ante Posted June 10, 2006 Report Share Posted June 10, 2006 Hi Bruce,Just a thought; why not use 30mm and 40mm PVC tube? Quote Link to comment Share on other sites More sharing options...
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