6 Sep
2016
6 Sep
'16
10:32 a.m.
So what are the other options?
* Trying to repair the unit. Every plane is soldered together with the ones
nearby to convey the X/Y signals. This can probably be undone with a
patience and soldering braid. But what are the chance that the X/Y wires
gets lose then? Are those soldered or welded into place?
Then it would be quite tricky to just identify where it is actually broken.
Any ideas for how to do this? A microscope of course. Any other ideas?
Applying an electrical field between the wire and something else and try to
detect it?
A stereoscopic microscope and a lot of patience is a good staring
point.
Repair. If the wire is broken in the mat it is
probably not to difficult to
pull out the broken parts. But then the new wire has to be spliced in. What
is t he best technique to do that?
How to push in the new wire in the matrix? I now that Anders was able to do
this with a broken X-wire in a PDP-8/L stack.
I used a pair of tweezers to push the
new thread in, one core at a time.
You should try to change as small part as possible. I just changed the
thread thru the first 64 cores, then I joined the two threads together
in the middle of the core plan. I then used nail polish as an isolatur.
I didn't thought I had something to lose to try to repair the existing
core stack. Without it the computer is really not working at all. I'll
think you should try to repair it. Start to bring out the core stack
and then turn it around for a while until you are brave enough.
I found some pictures on stacks to the 8/L in pieces before I started on
the internet, that helped me to understand what I had to master.
/Anders