I finally dug up the link to the CADR stuff (there?s probably some other useful links there as well). http://www.unlambda.com/index.php?n=Main.Symbolics < http://www.unlambda.com/index.php?n=Main.Symbolics>gt;. The CADR emulator and all of the microcode and OS (disk) images are in the download directory. Even if you don?t use the emulator, if you ever want to get the CADR running again you?ll need the microcode and OS images. TTFN - Guy cctalk at classiccmp.org> wrote: having the disk isn?t too terrible as the basic contents (uCode and system code) are available. There?s even an emulator for the CADR though I don?t have the link handy at the moment. Ping me if you have trouble finding it. less complete. The 3620 works (at least the last time I powered it on it did?not enough time to ?play?). At least one of the 3640s has shown signs of life and the 3650 (which came back to me after a vacation of 10 years or so) needs some ?love? but it?ll be worth it because in addition to the normal console it has the ?good? color frame buffer! The biggest issue for me is consoles. I have 3 but one is in need of repair. cctalk at classiccmp.org> wrote: missing its console and disk. It?s going to take awhile to get them cleaned up and see how viable they are. have a working PDP-11 to debug the CADR with if it gets that far, so there?s a good chance I should be able to get at least one working.