Re: [CAD_CAM_EDM_DRO] Tinnability, was Re: CAT 5 wiring

Randy Gordon-Gilmore wrote:

> At 10:28 PM 4/7/01 EDT, JanRwl@... wrote:
>
> >If you can tin it, it is surely OK to use! JRR
>
> I've had a fair amount of salvaged twisted-pair instrumentation cable that
> wouldn't tin, even with a solder pot. It's really frustrating to discover
> that after cutting to length, stripping back shield , neatly stripping
> ends, etc. I wish IDC cable was marked as such...

If it has a bunch of red and yellow, blue and yellow, brown and yellow,
or white and red pairs, all the same color combination, and funny looking
silver-ish wires, that is thermocouple extension cable. In general, you won't
be able to tin at least one of the wires. I have gotten some of this as
surplus 'shielded, twisted-pair' cable. I used one hunk of it in a pinch,
once, but it was VERY difficult to solder properly.

Jon