PDP-8 NEGIBUS Cables

From: vrs <vrs_at_msn.com>
Date: Tue Dec 2 04:28:56 2003

> > Now... what you can do is to make a *double-sided* board and design it
> > to be universal. You'll just be using 50% of its potential.
>
> I think I may have something like this...though it was originally done for
> Posibus. The DF32 emulator I bought from Charles Morris uses edge
connector
> cards built by a board shop, and 40-pin (I think) ribbon cables to connect
> to the 8L's (bought that, too) Posibus. Shoudn't be too hard to lay out
the
> boards starting from there, anyway. At 11*2=22 boards/device, you are
even
> talking quantities that make sense to send out to a board fabricator.

Checked the schematics, and what they show is a set of universal paddles
leading to a little board with all the cross-connects in it. A lot of the
cross-connects look suspiciously like M904/W011 wiring :-). The paddles
also have space for a second 40-pin connector (which is not actually
installed on my DF32 emulator paddles), so you could daisy-chain them if you
wanted to.

    Vince
Received on Tue Dec 02 2003 - 04:28:56 GMT