How much do 7808 regulators cost?

Motoman · Post by **Motoman** » Fri Jun 17, 2005 2:24 pm

How much? (on average..)

Super Mulletman · Post by **Super Mulletman** » Fri Jun 17, 2005 3:13 pm

Those are the one that take in as low as 6v, right? I think digi-key.com sells them for $1.50 each.

Motoman · Post by **Motoman** » Fri Jun 17, 2005 3:36 pm

wait they knok down the voltage to 8v right? Up to how much do they take in?

Dave · Post by **Dave** » Fri Jun 17, 2005 3:42 pm

I think it's dropout is around 12 volts (I may be wrong but I know it can take that at least) and it outputs 8 volts .

Motoman · Post by **Motoman** » Fri Jun 17, 2005 4:27 pm

o ok thanks

Post by **Gamelver** » Fri Jun 17, 2005 4:31 pm

7808s have an input range of about 10.2 to 36 volts, I believe
they output 8v, obviously

Post by **bicostp** » Fri Jun 17, 2005 4:46 pm

What's the radioshack part #? (I can't find it on their website.

)

goodie · Post by **goodie** » Fri Jun 17, 2005 4:50 pm

I don't think they carry it. They hardly have anything anymore. You'll probably have to order it from Digikey or something. I do believe RS has an adjustable regulator, though. It may be hard to figure out though...

Motoman · Post by **Motoman** » Fri Jun 17, 2005 4:52 pm

they dont have it at radioshack

I called to see if they had it around me this is how stupid they are

me: Hi do you guys have 7808 regulators
Radioshack: What are those?
me: the thing that knocks the voltage down to 8 volts
Radioshack: What do you want to do with it?
me: knock down the voltage....
(he asks someone else what those are, i heare them say WTF and he gives phone to someone else
Radioshack: What do you need
Me; 7808 regulator
Radioshack: uhh...uhhh....uhhh we.... dont have these.......

this proves they suck. once i went to see if they had any 7805's and the lady had to call her boyfriend to tell her what they were

EDIT: ya beat me goodie

Post by **bicostp** » Fri Jun 17, 2005 5:01 pm

Radioshack: You've got questions, We've got blank stares.

The ones near me don't even sell SPEAKERS anymore!

WTF?! My folks remember when you could go in there and buy all the parts for a basic crystal radio for under 5 bux.

how times have channged.

How do the adjustable regulators work?

Post by **gannon** » Fri Jun 17, 2005 5:22 pm

The radio shack near me has 7808s, the workers there realized long ago to leave me alone when I'm shopping since they can't help anyways

Anyways, they normally go for $1.50 at rat shack

goodie · Post by **goodie** » Fri Jun 17, 2005 5:22 pm

This thread has some pdf's descibing them:
http://benheck.com/ipw-web/bulletin/bb/ ... =regulator

Post by **Gamelver** » Fri Jun 17, 2005 5:25 pm

gannon wrote:The radio shack near me has 7808s, the workers there realized long ago to leave me alone when I'm shopping since they can't help anyways
Anyways, they normally go for $1.50 at rat shack

yeah, whenever I walk in they say "do you need any help?" out of habit, I guess, but then they realize that I always know what I'm looking for

....

Post by **bicostp** » Fri Jun 17, 2005 5:27 pm

But what's the P/N?

G-force · Post by **G-force** » Fri Jun 17, 2005 7:52 pm

Ooh! Beating on RS, alright!

The people at all mine are all total idiots, the only thing they know is how to scam you on cell phones. They don't even know what a SPST switch is.

I tell them they are out of something, they go and look through all the drawers (after I just did the same thing) and just say"Well, we're out". Then a month later they still haven't ordered any new parts!!