Statistically, it is more likely to be a 1700 module (a more common machine). The front bracket is missing, which is the easy way to distinguish the two types.
-- Will On Fri, Dec 28, 2018 at 6:10 PM Paul Koning via cctalk <cctalk@classiccmp.org> wrote: > > The second one is a 6000 mainframe "cordwood" module. It should have a > two-letter module type code on the front. > > The third looks like small bits cut from such a cordwood module (my wife has > some earrings made that way) but it may be they are actually complete items. > If so, I don't recognize them. > > paul > > > > On Dec 28, 2018, at 3:42 PM, Peter Van Peborgh via cctech > > <cct...@classiccmp.org> wrote: > > > > Gentlemen of advanced years who can remember CDC, cradle of Cray. > > > > Can you tell me which CDC computer type these three boards belonged to? It > > is for labeling purposes in my personal museum. > > > > https://postimg.cc/crJHv3Lt > > https://postimg.cc/Z0HnYH4h > > https://postimg.cc/6TtTNgs0 > > > > I am sure this will be easy for the right person. Many thanks! > > > > peter > > > > >