AudioCircle

Audio/Video Gear and Systems => The Lab => Topic started by: sts9fan on 10 Dec 2009, 01:20 pm

Title: Cap value substitution question
Post by: sts9fan on 10 Dec 2009, 01:20 pm

Hello I have a question on whether I can switch in a bigger cap on a simple chip amp I am building.  I have all the parts except the 2200uf caps.  I do have some 10000uf caps that I would like to use insted.  Any input would be great.
(http://www.audiocircle.com/image.php?id=24393)
Part Value Rating, type
Rg 22k 0.35 W metalfilm
Rf 22k 1 W carbon
Ri 680R 0.35W metalfilm
Rm 10k 0.35 W metalfilm
Cs 2200 uF
|| 100 nF
 63 V electrolytic;
100 V MKS
 

Title: Re: Cap value substitution question
Post by: Niteshade on 10 Dec 2009, 01:22 pm

The Cs caps can be 10,000uf.

Title: Re: Cap value substitution question
Post by: sts9fan on 10 Dec 2009, 01:46 pm

That's what I figured but I thought I would ask.  Thanks bill.

Title: Re: Cap value substitution question
Post by: mgalusha on 10 Dec 2009, 03:09 pm

Just don't forget the 100nF bypass caps.

Title: Re: Cap value substitution question
Post by: sts9fan on 10 Dec 2009, 03:48 pm

On that note.  A bypass cap just needs to be nonpolar, correct?  If it is mylar not polyester would not cause any issues? 

Title: Re: Cap value substitution question
Post by: *Scotty* on 10 Dec 2009, 05:05 pm

Mylar is another name for polyester film,specifically biaxially-oriented polyethylene terephthalate or boPET. Dupont's name for this product was trademarked Mylar.
Scotty

Title: Re: Cap value substitution question
Post by: sts9fan on 10 Dec 2009, 05:16 pm

good to know.  Thanks