so many resistors!

daguuy · Post by **daguuy** » Sat Jun 25, 2005 3:36 pm

does anyone have the answer to that? if not, could someone give me a pic of how much distortion would get if i used 3v?

Motoman · Post by **Motoman** » Sat Jun 25, 2005 5:09 pm

ask RPGTNick. I think he used 3v.

rawls · Post by **rawls** » Mon Jun 27, 2005 8:38 am

Sorry, no internet access over the weekend. Yes, "uf" is microfarad. Since the "u" should actually be the greek letter mu, I prefer to write it out to avoid confusion (unless someone can tell me how to do a mu in html).

Motoman · Post by **Motoman** » Mon Jun 27, 2005 10:35 am

so if I use IR120633 what kind of capacitator would i need? (electrolytic right?)

rawls · Post by **rawls** » Mon Jun 27, 2005 10:51 am

Use a 10 microfarad tantalum capacitor from AVX. Here is a shot from the data sheet for the IRU1206. It is pretty much self explanatory. (The Vin one is optional, but might as well put it in as the capacitors are typically less than 50 cents apiece.)

Motoman · Post by **Motoman** » Mon Jun 27, 2005 11:02 am

AVX? whats that?

EDIT: Would this work?

1:
http://www.radioshack.com/product.asp?c ... 272%2D1436

rawls · Post by **rawls** » Mon Jun 27, 2005 11:07 am

AVX is a company. Go to Digikey and put this in the search box:

capacitor AND AVX AND Tantalum AND 10uf

There are about 40 caps that meet this criterion.

Motoman · Post by **Motoman** » Mon Jun 27, 2005 11:09 am

any one of those would work?

rawls · Post by **rawls** » Mon Jun 27, 2005 11:46 am

They are all AVX, 10 microfarad and Tantalum. I would pick one that is rated for 10V or higher and +/- 10% tolerance just to be safe.

daguuy · Post by **daguuy** » Mon Jun 27, 2005 11:46 am

rawls wrote:

sorry, i'm not very familiar with those kinds of diagrams. does

mean ground?

Motoman · Post by **Motoman** » Mon Jun 27, 2005 11:47 am

i think it does because there is a + sign on the top,

daguuy · Post by **daguuy** » Mon Jun 27, 2005 11:50 am

sorry if i'm being a nuisance with all these questions, but does polarity matter with capacitors?

rawls · Post by **rawls** » Mon Jun 27, 2005 11:51 am

Yes, that is ground.

Here is a list of circuit schematic symbols to peruse at your leisure.

rawls · Post by **rawls** » Mon Jun 27, 2005 12:00 pm

daguuy, don't worry about asking questions, we all got to learn sometime.

Polarity sometimes matters with capacitors. If they are electrolytic or tantalum they are usually polarized. Others, like ceramic, are generally not. If they are polarized, there will usually be either a line or a +/- sign printed on them (the line almost always means anode which translates into "connect me to the positive end").

Motoman · Post by **Motoman** » Mon Jun 27, 2005 4:42 pm

Motoman wrote:any one of those would work?

so do all of these 40 work? But what kind of voltage rating and tolerance?