Well, I was in the first handful of Triwatt builders, and I had no issues with the manual. In fact, I basically built it based on the layout using the manual as a reference document, but this was my 6th or 7th build.
It is a complex build and there's a LOT of connections. I think all of the kit builders will agree that it's very easy to miss a connection on this one (pretty much every one of us missed a couple). I did have some noise issues with the OD and it took quite a while to iron that out - it was a lead dress issue, and this amp is VERY sensitive in that regard. I had done a 2204 clone previously so I was no stranger to higher gain amps but I still spent quite some time working the kinks out of my build.
Personally, I do agree with Zaphod that it probably isn't a good choice for a first build. But with that said Stephen's documentation & support are second to none and I think jcny is probably right. If you're thorough & take your time, you'll most likely have success. It's a kit that requires great patience though, and can take some time even when complete to get it running up to snuff.
Like previous posters, I don't want to discourage you. The Triwatt is an absolute GEM when you get it up & running, but it will likely require some hard work and frustration if it's your first amp build.
Now, with all THAT said, perhaps we should talk about what you're looking for in an amp. The Triwatt, like it's inspiration, is a bit of a different animal as guitar amps go, and would be a VERY different amp from the Allen designs. I'm guessing here, but I suspect they're heavily inspired by 50's/60's Fenders, and the Triwatt is NOT that amp. Do you have a frame of reference for the type of tone you're looking for?
Kirb
P.S. I recently build a Blackface Deluxe Reverb clone and that was a MUCH more complex build than the Triwatt. However, working the bugs out of it was far simpler because it is in no way as "touchy" as the Triwatt. Perhaps that will give you a frame of reference compared to the more complex Allen kits. If you dig that Tweed tone, you won't find a better kit than Trinity's Deluxe, BTW.
