On Tue, 2022-02-15 at 13:22 -0500, Mark Kahrs via cctalk wrote: > I realize this a rare bird indeed, but would anyone just happen to > have a > Varian 620/L backplane netlist hanging around? > > Unless I missed it, the schematics on bitsavers do *not* have it.
In 1972, I wrote microcode for the Varian V-70 to convince it to be an IBM 1130. Two colleagues wrote the I/O side in 620/f mode. I can send microcode, and flow diagrams for it. I have listings of the I/O simulator, but no electrons. I'll send that to anybody who's interested, for the price of postage.
