Date   : Tue, 18 Apr 2006 13:59:50 +0100
From   : "Mike" <profpep@...>
Subject: Re: CPFS and MOVE

David Harper wrote

> Has anyone ever tried the technique of printing a file out in hex, and
then
> typing it in on the other machine? Now that is slow!
>

I once hex dumped a set of  PDP11 ROM's  from a  Husky CNC Lathe, using the
serial card debug method, then OCR'd them into a PC, Split and
re-checksummed the results, and burned them into a new set of ROM's. The
problem was that the original ROM's were 2708. (had 3 power rails
+12,.+5,-5), and my jig for reading them was on a BBC at home, and I was in
Coventry with most other kit available. Most modern EPROM programmers won't
touch a 2708. The reason for all the fuss was to replace 4, (very flakey),
old  DEC boards of 2708's with 1 MRV11-C board of 2716's.

To check out, I redid the dump and then put the sheets on top of each other
on a light box.

Never, Ever, again!

||\/||ike