21 Jul
2021
21 Jul
'21
2:32 p.m.
Hi Jos,
Resoldered how?
The wires are _very_ thin (I guess 0.1 mm or thinner - think of human hair)
and they are covered with some form of high-temperature lacquer which you
would have to remove first. Also the dimensions of all this stuff is
_tiny_. There is just no space to poke anything in to solder a joint.
Your average fine tipped soldering iron would be ridiculously large to even
try.
I wonder if spot welding would work using the tip of a fine needle.
Of course before you can even attempt to repair a broken wire you have to
locate the break.
Best regards
Tom Hunter
On Wed, Jul 21, 2021 at 1:36 PM jos via cctalk <cctalk at classiccmp.org>
wrote:
On 21.07.21 02:15, Brent Hilpert via cctalk wrote:
I have seen the same, and measured that
these splices can turn highohmic.
I recovered an 8/L coremat by resoldering these splices.
In general comment to the topic, I have seen planar arrays ("mats") with
some number of randomly-situated wire splices in them.
These splices are in the gaps between bit arrays,
not interior to a bit
array (there isn't enough space between cores).
The splices are covered in a tiny dollop of (by
appearance) silicon
putty for insulation.