14 Feb
2003
14 Feb
'03
4:52 a.m.
Could someone
scan the engineering drawings for an H217C stack?
Go to http://www.spies.com/~aek/pdf/dec or
http://www.maincoon.com/classiccmp one or both will have drawings for
the 11/05. This is partly
for my own edification (I have one such board in my
machine), and partly because of the fact that this "new" pdp-11/05 has no
core with it. Its engineering drawings seem to indicate that it wants
4 or 8kW of core (one or more of H213-H216), *not* the 16kW of a H217.
(Granted, by placing two H214s into a chassis we get 16kW, but I
digress.)
It will depend upon which backplane you have. If it's an 11/05-S
backplane then it's the same as what I have and you can go to
http://www.shiresoft.com/pdp-11/11-10/index.html to see how to use an
H217C (which is what I have in mine). If so, the
next question is, can I do this with an H217? (Drop in an
H217C, and tell the machine that it's really an H214/H215.) This might
sound like a gratuitous waste of core, which it is, but I happen to have
another core board (not in my machine) that could be used... So anyway,
the engineering drawings would answer this question really fast.
It's not so much the drawings but the wirelist for the backplane. You
really need to know which backplane you have.