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Wish to upgrade phono preamp caps and other

Looking at my PS Audio GCPH I see 4 12000uf NCD caps sitting in what I believe to be the signal chain.

I wish to upgrade to best possible caps in that location.

I'm finding it difficult to locate any 12000uf caps let alone some really good ones that will fit in about a 35mm wide X 45mm high location.

I understood there are companies that replace these caps with Muse but Muse doesn't make that value cap.

I'm not electronic savvy but shouldn't you replace with same value cap?
desalvo55
jeffreybehr's avatar
jeffreybehr
805 posts
 
Don't change anything in your preamp until you have a schematic diagram and understand what you're doing...unless you don't care if it works. :-)
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desalvo55's avatar
desalvo55 OP
205 posts
 
I doubt that I'll find a schematic on this phono preamp. I know the risks involved, that's why I asked the question.

I don't wish to change the circuit, just perform some upgrades such as caps, fuse, some resonance material, maybe upgrade some wiring.

That being said I should leave well enough alone, I rarely do ;)
viridian's avatar
viridian
4,184 posts
 
12000uF caps are very unlikey to be in the signal path. In all likelihood these are the electrolytic storage caps in the power supply. I think that you are trying to replace the wrong thing.
desalvo55's avatar
desalvo55 OP
205 posts
 
Yes the 12000uf caps are for the power supply. Probably shouldn't touch those. The remaining 4 100uf 6.3volt caps are in the signal chain. Those I'll "touch".
Thanks for your help.
viridian's avatar
viridian
4,184 posts
 
Are you sure that you have 100uF caps in the signal path? That too seems an unlikely possiblity. Are they electrolytic or film? What are the markings on them? 100uF film caps are pretty large and putting an electrolytic in the signal path is pretty dicey.
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