Twiggy
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Registered: 15th Oct 04
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I have got some LED's switch and a battery thingy...
I have wired up the leds but the battery is getting red hot!!
Do i need a resistor?
[Edited on 15-01-2009 by Twiggy]
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John
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Registered: 30th Jun 03
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Go to maplin and buy them for a few quid.
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Twiggy
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Registered: 15th Oct 04
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nearest store is 15miles away
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Dom
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Registered: 13th Sep 03
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ebay? Order online?
[Edited on 11-01-2009 by Dom]
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Twiggy
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Registered: 15th Oct 04
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quote: Originally posted by Dom
ebay? Order online?
[Edited on 11-01-2009 by Dom]
MAPLINS delivery is £3
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C2RL R
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Registered: 28th Mar 02
Location: Redcliffe, QLD
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what kind of switch do you want? also, what size LED's?
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pow
Premium Member
Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
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15 miles = excuse for a drive.
Still, 30 miles = £3 of diesel in my car, so it might be cheaper for you to have them delivered
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Brett
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Registered: 16th Dec 02
Location: Manchester
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You want free LEDs? Hard times or what.
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Twiggy
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Registered: 15th Oct 04
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quote: Originally posted by loafofbrett
You want free LEDs? Hard times or what.
Nahh just cant be arse going to Maplins and asking for 4 led's
5mm Led's
Any switch so i can turn them on and off
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pow
Premium Member
Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
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I buy little bits of shit from maplins all the time you pooftah
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C2RL R
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Registered: 28th Mar 02
Location: Redcliffe, QLD
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i bought 1 LED, 1 Resistor and one PP3 Battery clip from Maplins back in my college days for my project. came to about £2.50.
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Twiggy
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Registered: 15th Oct 04
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John
Member
Registered: 30th Jun 03
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What leds did you get and what battery?
You normally do need a resistor with leds but the led should blow before the battery gets hot.
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Twiggy
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Registered: 15th Oct 04
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fuck knows i got them off my bro, i think some of the led's have blown.....
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Twiggy
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Registered: 15th Oct 04
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i remember in school there are colour'd bands on the resistor dependent on the curcuit?
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John
Member
Registered: 30th Jun 03
User status: Offline
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The bands denote resistance yes.
There are loads of sites with calculators for what you need but if you don't know the details it would just be guessing, which can normally be educated because certain led colours are normally certain values.
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Twiggy
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Registered: 15th Oct 04
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i think i might just fuck it off as its more hassle than its worth
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