------ Original Message ------ From: "Josh Dersch via cctech" <cctech at classiccmp.org> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Sent: Friday, 1 Oct, 2021 At 08:33 Subject: ISO M100, M102, M633 flip chips for DEC TC08N controller Hey all -- I have a TC08 DECtape controller that I'd like to convert to a TC08N (the negibus version of the TC08). If I'm reading the documentation right, this involves swapping in a few flip chips -- M100 for the installed M101, M102 for M103, and M633 for M623. If anyone has any of these, please drop me a line. Curious also if anyone out there has done this conversion and can comment on whether my assessment is correct... Thanks! - Josh I might be preaching to the choir here, but if you can't find originals, this website is an absolute goldmine for flip-chip schematics. If you can find the components (or modern equivalents) it might be worth making your own. https://so-much-stuff.com/pdp8/flipchip/Mxxx.htm <https://so-much-stuff.com/pdp8/flipchip/Mxxx.htm>

Josh Rice