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Old 04-07-2006, 09:21 PM   #1
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Default electronics forum

is there a electronics forum? i knwo there is a genreal one here.

but is there like electechforums or something

i want to ask questions bout resistors and capacitors and all that good complicated stuff.

or is there a guy here i can IM with and discuss such things?

or can u guys handle that stuff? could i ask u guys? or du u not know anything.
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Old 04-07-2006, 09:26 PM   #2
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Default Re: electronics forum

I've studied electronics and digital logic briefly in high school..
Not exactly my area of interest entirely, but I'm sure someone is very experienced in electronics here.
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Old 04-07-2006, 09:33 PM   #3
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Default Re: electronics forum

k.

would this be considered a brigth led? if not, gimme a radioshack link to a bright one.

http://www.radioshack.com/product/in...entPage=family

and if i hooked it to a 5v power supply, it would not work. this runs on 2.2-2.4v

i would need a resistor right? anything more? and how many ohms would that be? i want to hooks a led to a usb cord. so when i plug it in it will light up...w/e

question 2. for another project i am building a 5v power supply off of a 9v battery. i am gonna hook it up to a LM7805. i read somewhere to attach a 220uf capacitor to the gournd and output pins of theLM7805. is that worth it? and should i add anything else? i also read somewher i should use a small resistor between those two pins too. should i juse anything else? or...what i am asking is tell me all u know about what i should do if i build a 5v power supply.
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