conecting speaker to noac

peppers · Post by **peppers** » Wed Nov 03, 2004 10:26 am

I dont quite get it I want to connect a speaker to my noac what I dont know is what do I connect before the speaker to get louder sound and how do I do it

I have some spare capacitors, transistors, diodes, and a volume control sitting around if I can use them I dont know a great deal about elecrtonics (if you could not tell)

Post by **gannon** » Wed Nov 03, 2004 2:19 pm

make a small signal amp out of the transistor, and use the volume controll to change the volume

Guest · Post by **Guest** » Wed Nov 03, 2004 2:44 pm

would I be able to draw power from the noac bord to power it?

peppers · Post by **peppers** » Wed Nov 03, 2004 2:45 pm

if so where would be a good place to do that from?

your like Mcgyver so I figure you probuley know of a way (or maybe im just stupid)

Post by **gannon** » Wed Nov 03, 2004 3:22 pm

lol, I'd say that drawing power straight from the onboard 7805 would work good.
On the transistor there a 3 lines, the base, the collector, and the emitor. The base would be audio in, the collector would be Vin, and the emitor would be the audio output....or at least I think that's how it goes...

peppers · Post by **peppers** » Wed Nov 03, 2004 3:51 pm

uumm 7805??

dam I have to try to learn more so I dont have to ask so menu questions

JackFrost22 · Post by **JackFrost22** » Wed Nov 03, 2004 4:59 pm

a swuare black thing with 3 traces

peppers · Post by **peppers** » Wed Nov 03, 2004 5:04 pm

?? is it the thingy next to the controller port wires?

Post by **Gamelver** » Wed Nov 03, 2004 5:07 pm

looks like it. it should say 7805 on it or something like 78M05.

JackFrost22 · Post by **JackFrost22** » Wed Nov 03, 2004 5:08 pm

it should be

peppers · Post by **peppers** » Wed Nov 03, 2004 5:16 pm

oww ok,the thingy that gets very hot when I tern it on

but sence I know nothing I have one more question where on it do I connect wire to draw power from it?

Post by **gannon** » Wed Nov 03, 2004 5:35 pm

yep, that's probably the 7805, one of the pins should be the 5V output used by the system, and that's the one you should use to power the amplifier.

peppers · Post by **peppers** » Wed Nov 03, 2004 5:57 pm

I feel like a nusance here but

how do I figure out witch one is that?

Post by **gannon** » Wed Nov 03, 2004 6:01 pm

a multimeter would be the easiest way.

Post by **Gamelver** » Wed Nov 03, 2004 6:09 pm

or just a plain ol' voltmeter would do the job. if you don't have a multimeter or voltmeter I suggest getting one ASAP. they're quite usefull......