Sorry Steve, mine is badged 8296 but I have noticed on Zimmers site there is a 8296SK
http://www.zimmers.net/commie/timeline.html
and the SK version is also mentioned on the 6502 site.
http://www.6502.org/users/sjgray/computer/cbm2/index.html
Zimmers site does not mention a 8296 with no suffix while the 6502 site lists as PET-SK (8032-SK,8296, or 8296D) , the latter being the one with two integral disk drives
Although I have had my Pet for many years it, has been boxed up so it is only recently that it has resurfaced and I have taken an interest again so I probably have missed something. The proliferation of different designations is not helped (at least by me) when so many machines are refereed to by their technical/board numbers. Not the least by the number 6502. It all right for all you knowledgeable gurus out there. This newbie is on a learning curve.