Hi, not to be a burden on the thread or such, but I have been following this thread for quite a while. As quite the novice in electronics, and after looking over the schematics for the fetzer/ruby amp, I know how to put it together, but I am really unsure of all of the parts I need. I have searched runoffgroove.com for a definitive parts list and have searched all of the sustainer threads (though this one would be more along the lines of finding a needle in a haystack), I feel that the only thing holding me back from actually working on this is being so unsure of what to buy. Thanks for all who help me, and I really think this site is one of the greatest resources for any and all things related to guitars.