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Ron H said:In your photos, I only see one polarized capacitor. C1 should also be a polarized cap of 10 microfarads. Your caps (except C4) look like silver micas, which are only available values much lower than the ones in the schematic. I think C4 is the only one that might be the correct value.
C1 doesn't have to be polarized. It just didn't look like it could be 1uF. I'm probably wrong.Mipoleon said:Yeah I had a feeling that C1 was supposed to be polarized as well. They didnt have one in stock at the time and someone previously posted that it should work with the nonpolarized. They may have misunderstood my question. Here are the specs on C2 and C3:
0.1 uF Polyester Film Capacitor
50WVDC max
Capacitance Tolerance +-10%
I was pretty sure those were the right capacitors. Thank you very much for your help.
What kind of treadmill do you have? I calculate that 1 mile/hr would be equivalent to 4.4 inches per rotation. That's a cylinder 0.7 inches in diameter. Kinda painful to walk on.Mipoleon said:Thank you very much Ron for that schematic. It would have taken me forever to figure all that out.
I wonder if I could bother you for one more favor. I just measured the rotation on the treadmill. At the slowest speed it completes 4 rotations per second. Would you be able to tell me what the numbers on the components would have to be to keep the signal going as long as the user completes a rotation within .25 seconds?