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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: LED connection basic? posted by redcoat on June 27, 2001 at 07:24:50:
You could wire this led either way. The only difference would be the series resistor would have to be twice as large when running the cathode (-) end to the -36v line as opposed to ground. The total voltage supply would then be 72 volts. 72/.020=3.6k ohm where aa the 36 volt supply would then be 36/.020=1.8k ohms. I find 20ma to be too bright so i shoot for 5ma. 72/.005=14.4k 15k would be close enough and will provide 4.8ma. 36/.005=7.2k, 7.5k would give you 4.8ma.Sparky
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- Re: LED connection basic? - Sparky 23:47:49 06/27/01 (0)
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