[Techtoolslist] Tek 1240/1241 Mainframe Card Compatability?

[Brad Gass]

Hoping there might be a Tek guru out there that can answer this off the top of their head... 

Are the basic mainframe modules/boards compatible between the 1241 and 1240 (excluding the video card, obviously)? I can't find my paper service manuals right off to research, and PDF manuals are a pain to skim for me anyway. 

I have a bad "Control Processor" board in my 1241 (long story, yes, it's definitely toast, physically damaged) and am wondering if they are the same between the 1240 and 1241 (sans probably different firmware in the EPROM's). 

If they are the same, I'd just pick up a cheap locally available 1240 donor on eBay and go from there. 

Thanks for any insight anyone can give! 

--Brad