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Re: SATA cables

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On Saturday 13 February 2016 19:15:31 Ric Moore wrote:

> On 02/12/2016 12:21 PM, David Christensen wrote:
> > On 02/12/2016 12:24 AM, Gene Heskett wrote:
>
> ...
>
> >  > 'hot red' colored wire in a mic cable that always broke, ...
> >  > After a year or 2, there was no wire remaining in that tubing,
> >  > just a reddish copper dust!
> >
> > Wow.  Somebody didn't understand chemistry/ metallurgy.  I'd suspect
> > the copper before the insulation (or the jacket), but only a
> > chemical assessment would tell.
>
> I personally know that Gene hails back to the days when real men used
> soldering irons in the TV broadcast industry. On another list Gene
> made the same claim about 5 years ago. All of my drives were acting
> flakey, so I took his hint and replaced the cables with black ones. No
> more problems.

> As far as the chemistry goes, if the red dye contained 
> an oxidizer, then the heat from the amperage flowing in the cable
> would cause gassing and a faster oxidation rate.

Maybe Ric, but the current in the mic cables was perhaps 20 milliamps in 
a 22 or 24 gauge wire. The red wire was normally used for the PtT 
switch, which either ran the transmit/receive relay, or did it even more 
dependably with electronic switching. I wouldn't say zero heating, but 
it wouldn't be detectable by any instruments you or I can muster for the 
task.

Essentially ditto for the sata cables, thats all signaling stuff, and 
even at a 3Ghz data rate, again even the wave currant would not exceed 
20 mills, for perhaps 10% of the time in a well designed circuit.

So IMCO, and as a C.E.T., heating of the cable from anything but nearby 
heat radiated INTO it, is miniscule in the grand picture. I do NOT know 
whats in that hot red dye, but wrap it around a copper conductor and 
youi have signed its eventual death warrant.

> Copper does oxidize 
> quite readily. I spent 26 years in the chemical industry and a 20
> degree rise above room temperature would cause some of our caustics to
> eat everything that attempted to pump them. So, while someone might
> not know chemistry/metallurgy, it might not be Gene. Ric

Thanks for the backup Ric, its appreciated.

Hows the phantom leg doing?  Well I hope.  I still have both feet, but I 
am paying attention to the glucose test results /most/ of the time.  Its 
my back, kidneys, and prostate that worry me, in that order.

Some marching orders from Grandpa Gene, Take care.  And keep the other 
leg, ya hear?
 
Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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bad sectors on disk Ritesh Raj Sarraf <rrs@researchut.com> - 2016-02-09 10:00 +0100
  Re: bad sectors on disk Hans <hans.ullrich@loop.de> - 2016-02-09 10:20 +0100
  Re: bad sectors on disk "Thomas Schmitt" <scdbackup@gmx.net> - 2016-02-09 11:20 +0100
    Re: bad sectors on disk Ritesh Raj Sarraf <rrs@researchut.com> - 2016-02-09 12:00 +0100
      Re: bad sectors on disk "Thomas Schmitt" <scdbackup@gmx.net> - 2016-02-09 13:00 +0100
        Re: bad sectors on disk Eike Lantzsch <zp6cge@gmx.net> - 2016-02-09 13:30 +0100
          Re: bad sectors on disk Eike Lantzsch <zp6cge@gmx.net> - 2016-02-09 13:50 +0100
        Re: bad sectors on disk Ritesh Raj Sarraf <rrs@researchut.com> - 2016-02-10 15:20 +0100
          Re: bad sectors on disk "Thomas Schmitt" <scdbackup@gmx.net> - 2016-02-10 15:40 +0100
      Re: bad sectors on disk jdd <jdd@dodin.org> - 2016-02-09 13:10 +0100
  Re: bad sectors on disk Jonathan Dowland <jmtd@debian.org> - 2016-02-09 16:20 +0100
  Re: bad sectors on disk David Christensen <dpchrist@holgerdanske.com> - 2016-02-09 20:30 +0100
    Re: bad sectors on disk "Thomas Schmitt" <scdbackup@gmx.net> - 2016-02-09 21:00 +0100
  Re: [computers] bad sectors on disk TWS Admin <tws@wilderness.org.au> - 2016-02-11 05:00 +0100
    Re: [computers] bad sectors on disk Joseph Loo <jloo20111002@gmail.com> - 2016-02-11 05:10 +0100
      Re: [computers] bad sectors on disk David Wright <deblis@lionunicorn.co.uk> - 2016-02-12 05:20 +0100
        Re: bad sectors on disk "Thomas Schmitt" <scdbackup@gmx.net> - 2016-02-12 08:50 +0100
          Re: bad sectors on disk Gene Heskett <gheskett@shentel.net> - 2016-02-12 09:30 +0100
            SATA cables David Christensen <dpchrist@holgerdanske.com> - 2016-02-12 18:30 +0100
              Re: SATA cables Ric Moore <wayward4now@gmail.com> - 2016-02-14 01:20 +0100
                Re: SATA cables Gene Heskett <gheskett@shentel.net> - 2016-02-14 02:00 +0100
                Re: SATA cables David Christensen <dpchrist@holgerdanske.com> - 2016-02-14 05:40 +0100
                Re: SATA cables Ric Moore <wayward4now@gmail.com> - 2016-02-14 17:30 +0100
          Re: bad sectors on disk Ritesh Raj Sarraf <rrs@researchut.com> - 2016-02-16 14:40 +0100
            Re: bad sectors on disk Ritesh Raj Sarraf <rrs@researchut.com> - 2016-02-16 15:00 +0100
            Re: bad sectors on disk "Thomas Schmitt" <scdbackup@gmx.net> - 2016-02-16 15:10 +0100
        Re: [computers] bad sectors on disk jdd <jdd@dodin.org> - 2016-02-12 09:30 +0100

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