this is one of a number of things needed for the hyper dimensional resonator said to be 7 layers of 21 awg=21 American wire gauge wire. on a 7 inch long core, I've made a number of them but I used a 8 inch long core and I made pvc spacers to space the coil for the length of 7 inches this way the round spacers makes it very easy to roll wire onto the core , mild steel core was the best and...
hyper dimensional resonator electromagnet
hyper dimensional resonator electromagnet