DEC PDP-11/45 backplane +5 ECO

Fritz Mueller fritzm at
Sun May 2 16:28:31 CDT 2021

> On May 2, 2021, at 1:25 PM, Josh Dersch <derschjo at> wrote:
> Sorry for the delay, but finally, here's a pile of pictures of the +5V ECO on the backplane.  Let me know if you need more detail on something:

Oh, this is great, thanks!  It's very interesting to see how this was implemented.

I think I will need empty my backplane soon in order to do some lower fan maintenance, so I will probably  pull my backplane and implement this at that time.

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