Oy, is this thread still alive? Amazing!
For c102/202 I have Nichicon KW 470uF 63v. I picked these because it was discussed early in the thread that 1000uF was was probably over kill.
It was convincingly (i.e. math was involved) argued somewhere that C102/C202 should be 1000uF, I think. It's not too hard to find suitable caps, so I tend to err on the side of caution there, per (dBel's?) advice.
The discussions of overkill usually involved C103, the main power reservoir cap. I am absolutely convinced that the 1000uF specified there on the schematic is inadequate. Some of us have used caps as large as... 16000uF? there (I've got 12000uF in one of mine) to good effect, but I'm pretty sure everyone agrees this is overkill. 4700uF is probably a relatively safe and sane size that will sound good. (The most immediately noticeable benefit to increasing C103 above the "recommended" 1000uF is, erm, 'significantly improved low-frequency response', i.e. the bass goes from fairly weak and flabby to... not. ) It should be noted that the cheap (in every sense of the word...) Bravo/Indeed 6DJ8 headamps that were all the rage a year or so ago used a (very very cheap) 6800uF cap here, while otherwise following the rest of the schematic as published, more or less (no input caps), and I'm pretty confident that their having done so is one of the reasons those little amps sound so good and were so popular, however briefly.
[quote]There are notes on the BOM that r103/203 and r107/207 should be replaced with some thing of better quality since they are in the audio path but I don't know what to look for.
I used some quasi-exotic resistors from Digi-Key, alleged to be identical to some pricey European boutique brand, but at a fraction of the cost. Alas, it's been almost two years, and I can no longer immediately remember either brand name.
They're green in color, but that's about all I know. Maybe someone else knows which ones I'm talking about.
(God, this new post-editor-for-dribbling-idiots is annoying. If some moderator with the patience to understand this abomination wants to fix the formatting of this post... have at it, and more power to you. And to think, I'd forgotten why I rarely post here anymore...)