Varian 620/L backplane netlist?

Van Snyder van.snyder at sbcglobal.net
Tue Feb 15 15:53:30 CST 2022


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.



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