tomturd Posted September 5, 2007 Report Share Posted September 5, 2007 Righty ho,I'm going to attempt to make a circuit consisting of 5 LEDs, powered by a 9v battery (edit, actually I've just changed my mind, Im going to use one of these with rechargables, so infact the equivalent of a 2.4v battery apparently) . I know somewhere along the lines I need a resistor, a 100ohm one I believe. Im using these LEDs.Gonna order the bits from maplin, but I'm stuck on the resistor. Can anyone make sense of this page? I haven't a clue how to find a 100ohm resistor on there http://www.maplin.co.uk/module.aspx?Module...oy=5m9#overviewTa Quote Link to comment Share on other sites More sharing options...
Joe Sheehan! Posted September 5, 2007 Report Share Posted September 5, 2007 Auto Mod Please use Random Small Questions for topics like this. Only joking.Erm... not sure, but if you click the specifications tab, theyre displayed in what i think i ohms.No promises. Quote Link to comment Share on other sites More sharing options...
Krisboats Posted September 5, 2007 Report Share Posted September 5, 2007 If your sticking 5 leds in series you don't want the amount of resistance like you would for a single led, you want a resistor that allows the amount for all 5 led's. Find out how much resistance your led's need, multiply it by 5.Or buy the superbright ones, you can stick 3 of them comfortably in series with no resistor on a 9 volt battery, sticking 5 on would dull them down slightly. Quote Link to comment Share on other sites More sharing options...
tomturd Posted September 5, 2007 Author Report Share Posted September 5, 2007 Or buy the superbright ones, you can stick 3 of them comfortably in series with no resistor on a 9 volt battery, sticking 5 on would dull them down slightly.Oh right, cool, the ones I'm getting are superbright Thanks for your help Quote Link to comment Share on other sites More sharing options...
Ash-Trials Posted September 5, 2007 Report Share Posted September 5, 2007 yeah kris is right What are you making this for just for fun?Ash~ Quote Link to comment Share on other sites More sharing options...
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