On Tue, Sep 18, 2018 at 8:27 AM, Noel Chiappa via cctalk < cctalk@classiccmp.org> wrote:
> (Note that if you have an old > machine/harness, there's a jumper you have to add if you have only a single > H745; see the second paragraph on page 6-18 of DEC-11-H40SA-B-D.) > I totally missed that. It wasn't in the previous edition, DEC-11-H40SA-A-D. However, now I see that both editions mention that the H744 in slot C is optional, which I also was not previously aware of. Although I've had a few 11/40 machines, I didn't often have to do anything about the power supplies other than check the DC voltage and ripple.