page 158 capacitors right board .1uf 1uf nesp

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nick1234
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page 158 capacitors right board .1uf 1uf nesp

Post by nick1234 » Fri Jul 22, 2005 2:02 pm

just wondering where those capacitors came from because its not on the parts list. sorry if this already came up some where else. figure 7-23 pg. 158

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usbcd36
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Post by usbcd36 » Fri Jul 22, 2005 3:44 pm

They are needed for the regulator that Ben conveniently forgot to put on the parts list also. I believe it is a low-dropout regulator (9.6v -> 7.2v) so it needs capacitors to run (this is explained in the regulators section of the book).

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jgibson
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Re: page 158 capacitors right board .1uf 1uf nesp

Post by jgibson » Sun Jul 24, 2005 6:41 pm

nick1234 wrote:just wondering where those capacitors came from because its not on the parts list. sorry if this already came up some where else. figure 7-23 pg. 158
I had this same problem a while ago. This question is answered in the NES forum. Do a search to find it and good luck with your nesp. :)
Life is a lot like a video game without the extra lives and continues.

jeff19
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Post by jeff19 » Tue Nov 15, 2005 9:42 pm

Yeah I noticed the capcitors that were left out of the parts list. To be honest I couldn't find a 1uf polarized capacitor ANYWHERE, all I can find is a 1uf NON-polarized capacitor. The general consensus is that this wont make a difference, any thoughts?

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nos_slived
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Post by nos_slived » Wed Nov 16, 2005 12:39 am

It will make a difference, because the capacitors are different. Look for an electrolytic cap. You may have to order online.
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jeff19
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Post by jeff19 » Wed Nov 16, 2005 8:54 am

I did get an electrolytic capacitor. The only difference between the one mentioned int he book and the one I got was that the one in the book was polarized and the one I got was not. Thats what I'm trying to determine if it would make a difference or not.

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nos_slived
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Post by nos_slived » Thu Nov 17, 2005 2:32 pm

From the research I've done, and I just checked to make sure, I'm pretty sure all electrolytic capacitors are polarized, so the one you have might have been labled wrong. Can you post a couple pictures of it?
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jeff19
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Post by jeff19 » Fri Nov 18, 2005 12:28 pm

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This is the exact one I used. It is part # 272-996 at radioshack. Look it up on radioshack.com it even says in the title"non-polarized". It does NOT have any markings of any kind on the outside, such as a big black stripe or any kind of + or - indications. It is also axial, which means each lead comes out a different end of the capacitor, whereas the polarized capacitor ben shows in his book looks to be radial, meaning both leads come out the same side. This is what made me leary to use it instead, but from what I've heard so far it shouldn't make a difference.

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