There's actually a nice 16500C on ebay right now Personally I have an A, but if I could afford a B or a C, I would jump at the chance (some B models and all C models have a hard drive to boot from, plus they have faster capture rates capable, and a higher speed scope card. Here are some of the C models on ebay now... http://search.ebay.com/search/search.dll?cgiurl=http%3A%2F%2Fcgi.ebay.com%2F ws%2F&MfcISAPICommand=GetResult&query=16500C&categoryid=&ht=1&category1=4676 &SortProperty=MetaEndSort&BasicSearch=&from=R2&catref=C3 The biggest problem is getting a manual - some come with a manual, many don't - it took me about 5 months of waiting to find a manual on ebay for the logic analyzer portion - so if at all possible, get one with all manuals. -Tony > Seems like there are a lot of nicer logic analyzers showing up on Ebay these > days. Used to be all you would see is 1631's. I particularly like the > 16500/16555 for the nice capture depth :-). > -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.