Is it really worth the effort, and when you are done, do you really have a way of accurately testing whether they are correct or not? Is it really worth saving $5 to wind them yourself?Ĭan you find appropriate powered iron cores?Ĭan you find appropriate bobbins to wind them on? Note what looks like bare copper wire is really Lacquer insulated wire.Ī 1.5mH coils with iron core 18 ga costs $7.57Ī Jantzen 0.30mH 18 AWG Air Core Inductor = $5.14 Here are links to pictures of ready made coils, air and iron core. This type of wire is available at most building supply/home improvement stores. Normal vinyl/plastic/rubber insulation is too thick. The lacquer makes a thin coat of insulation on the wire. Normally to keep the coils tight and close, you need lacquer cover wire. Number of rows, number of turns, number of layers, they are what determine the inductance.Īlso, you understand you can't just use common insulated wire. ![]() The length of the wire just turns out to be whatever it turns out to be, it is incidental. ![]() Absolutely, the number of turns is every thing.
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