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Jun21-09, 05:10 PM
Sci Advisor
PF Gold
P: 2,082
You might increase the diameter of your core. Try a screw, for example, maybe 1/4-20 x 2", wrapped with 1 layer of electrical tape so the threads don't bite into the wire. Are you using small gauge (around 24 AWG) magnet wire? (Magnet wire has a clear coating instead of thick plastic insulation, so you can wind many turns in a small radius.) Two dozen turns won't do the job--try hundreds. You should get action!