Somebody told me that larger caps (actual size) tend to be better for audio

[elkym]

So would that make these good for coupling caps in a 5f1 champ build?

http://cgi.ebay.com/10uF-630V-AC-Paper-Capacitors-Lot-of-2_W0QQitemZ330282272556QQcmdZViewItem?hash=item330 282272556&_trkparms=72%3A1424|39%3A1|66%3A2|65%3A12|240%3A13 18&_trksid=p3286.c0.m14

[gldtp99]

Your question doesn't make much sense----- there are no 10uF coupling caps in a 5F1 Champ that i'm aware of.
If you're talking about the power supply filtering capactors then you can't really believe that these old Russian 10uF/450V oddball caps would be an upgrade to the caps that are usually used--- such as Sprauge Atom, F&T, Xicon, Nichicon, Illinois, etc, etc.
Use fresh caps from one of the usual suppliers (Mouser, AES, Allied, etc) and all will work out just fine...............gldtp99

PS--- there are no "Magic Components" per se--- there are differences but not as great as some make them out to be-----quality components assembled correctly with proper amp building techniques will result in a great sounding amp build. Also, the highest quality (hi temperature stability, extremely tight manufacturing tolerances, etc) electronics components available today may not make the best sounding tube guitar amplifier.

[SatelliteAmps]

+1

Actual physical size does not mean better or worse audio quality. Higher voltage capabilities will have some effect on tone, which might be what someone was trying to tell you.

[WesKuhnley]

It sounds like this is a case of 'net rumors and innuendo. The larger the coupling cap or cathode bypass cap, the more low end is allowed to pass. In Pro Audio and Hi-Fi (where frequency response and linearity are prized), this is probably considered a good thing, in guitar amps, probably not depending on topology. A fairly clean amp may be able to get away with overly-large coupling caps, like the ones you posted, but any design accentuating distortion would probably be very flubby. If you look at most amps they have .01 or .0047 coupling caps, MUCH smaller than the 10 uF you mentioned.

The question is not whether it is better for audio or not, but one of context. In this case, guitar amps are more instrument than reproduction element, and thus have a very different design ethos than something that is actually "good" for audio.

[elkym]

So-- I think I've got my caps backwards... which ones are the coupling caps?
Sorry, I'm trying to learn this all-- and I have yet to buy a book on it... I'm learning a lot, but a little clarification would be appreciated...

http://ceriatone.com/images/layoutPic/fenderLayout/5F1ChampUniversal-Layout200.jpg

[TweeDLX]

which ones are the coupling caps?
Those would be the little yellow ones in the pictures on Nic's site. See diagram below... For more good info on this topic go here: http://www.diystompboxes.com/pedals/tubedummy.html

http://www.diystompboxes.com/pedals/triodecoup.GIF
Mike http://www.thegearpage.net/board/images/icons/icon7.gif

[phsyconoodler]

Do you think maybe the OP is funnin' with us a bit?The fleabay link is hilarious!:roll

[elkym]

Of course I was goofin'-- but only a little bit... I really don't know these things!

[TweeDLX]

Do you think maybe the OP is funnin' with us a bit?The fleabay link is hilarious!:roll
Wow! I didn't follow that link the first time I read through this thread... Let's see, you'd have to secure the cap to the circuit board with epoxy to keep it stable and use a heavy steel chassis... http://www.thegearpage.net/board/images/icons/icon12.gif

Mike