Thanks Pars, that's a good idea. I did have my friend who's working on the 202 send me his service manual in PDF. As I suspected, it's exactly the same pot in his deck-so that's at least two models that use the same volume control pot.
amb, I did just list on Naktalk. However, I find that they way they communicate with each other (only by emails through the one server with a lot of duplication) a very confusing format. I agree though, from what I've read, they know their Naks! I have found a 'parts only' 202 machine that I'm thinking about buying-just to get that pot.;-)
*Update:I Talked to my friend who is lucky enough to have fixed his 202. He said it may seem like overkill, but it's really a good idea to pick up another machine with similar parts. I think the 202 and the 505 share some motors as well and I have his service manual in PDF so it's easy to cross parts. Now, just to find a 'donor' that is reasonable. The hype for Naks has pretty much ended-legions of people got taken buying "perfectly operating" machines that were junk and suffered enormous repairs bills to keep them. That's had a profound effect on most Nak markets except the "Dragon", which does everything for you automatically-on a good day. Personally, I'd rather have a more hands on deck.;-)