Pretty cool! Got a couple requests: 1. can you tell me the website where those stellar spectra you mentioned are located? I'd like to incorporate them into my "What Kind of Star" talk. 2. Would there be a way I could get one of those 12 to 18 v DC-DC converter IC's you mentioned? I need to get this put together before the GCSP. I figure it would be more efficient than running a 12V to 110 converter and plugging in the scope's power supply just to get 18 v. Thanks, G -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.