hypothetically you could make a pair of high-z magnetic headphones with tin can lids and small 2k to 10k audio transformers with E-I cores (the cores need to be disassembled, and then reassembled with just the E parts). you can get a basic idea how the old high-z headphones were constructed on this page, which has some good pix of the internal parts http://oldheadphones.com/crystal/info/restore.html
don't use aluminum for the diaphragm, it must be a magnetic metal.
somehow i'm thinking there's a magnet in the assembly somewhere.... i've taken a pair of high z phones apart before, and i seem to remember a magnetized ring under the diaphragm rim... long time ago before high school
don't use aluminum for the diaphragm, it must be a magnetic metal.
somehow i'm thinking there's a magnet in the assembly somewhere.... i've taken a pair of high z phones apart before, and i seem to remember a magnetized ring under the diaphragm rim... long time ago before high school
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