Re: Is it possible to install Debian in such a case.

From	Larry Martell <larry.martell@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Is it possible to install Debian in such a case.
Date	2019-06-30 02:10 +0200
Message-ID	<yevzQ-81O-7@gated-at.bofh.it> (permalink)
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On Sat, Jun 29, 2019 at 8:04 PM Gene Heskett <gheskett@shentel.net> wrote:

> On Saturday 29 June 2019 19:05:23 deloptes wrote:
>
> > Gene Heskett wrote:
> > > On Friday 28 June 2019 02:14:42 deloptes wrote:
> > >> Gene Heskett wrote:
> > >> > There was a period a decade back where the capacitors
> > >> > were legendarily bad.  Your unit may have some of them in it.
> > >>
> > >> It was around 2004. From a trustful source I understood that the
> > >> Chinese manage to steal the formula from Japan, but translated few
> > >> things wrongly and the world was flooded with bad caps. In the
> > >> company I was in back then, PC caught often even fire. We had to
> > >> mitigate the risk or just replace the PC with more reliable once.
> > >> This was a good story.
> > >
> > > I think your beginning date is likely right, but it took a looong
> > > time for those to get flushed out of the supply pipelines. They
> > > typically went for 10% of what the good stuff was worth and a lot of
> > > buyers with a BOM in hand thought they were getting a good deal.
> > >
> > > Electrolytic capacitors are a very old tech. I even caused a
> > > shortage of American made caps in the middle of the OPEC battle in
> > > the '70's.  I was at the time a tx supervisor for Nebraska ETV, in
> > > charge of a channel 19 site NE of Norfolk NE, getting pretty close
> > > to colder weather and needing a barrel of Technical Grade Ethylene
> > > Glycol for making a 30% mix for transmitter coolant.  As that was a
> > > klystron using transmitter, you had to have extremely pure, as in
> > > distilled or better coolants else the voltages involved would
> > > corrode the plumbing very quickly from galvanic effects.  Anyway I
> > > ran up quite a phone bill locating a barrel, finally finding it
> > > sitting on a shipping dock in Omaha, and bought it on the spot,
> > > paying about $14/gallon. I had antifreeze for the winter, but that
> > > barrel was the last in the country, and was scheduled to be shipped
> > > to Sprague in Lincoln about 3 weeks after I bought it off the dock.
> > > Put Sprague out of the cap business for several months and created a
> > > nationwide shortage of replacement capacitors for the tv's etc of
> > > the day. It was well into the next summer before caps started
> > > showing up in the wholesalers shelves again.
> > >
> > > That rise in energy costs broke a few broadcasters and sounded the
> > > death knell of klystron amplifiers. It did take something over a
> > > decade to flush them, the last time I was one was in 87 or 88, when
> > > I was coerced into going up the WNPB, near Morgantown, one of the
> > > State of WV's educational tv stations, to see if I could get them
> > > back on the air.
> > >
> > > Poor operator education caused them to wreck one, and they had no
> > > real money to buy a new one at $130,000 or so from Varian.  But this
> > > was late April or early May, and the legislature had included money
> > > for a new transmitter, available after 1 July.  So they bought a
> > > used one that was full of air, then another used one that might have
> > > been usable had the half moons in the shipping crate been
> > > reinstalled.  But they weren't, so I unpacked it, checked for gas,
> > > found very little so it seemed worth dressing it up with its
> > > cavities, setting it in the magnet dolly and trying.  It wasn't
> > > until I was trying to seat it in the dolly that I found it was bent.
> > > At that point all the state engineers declared it would not work.
> > > But I thought we had one chance, and by then I was convinced I was
> > > the only one in the building who actually knew how the darned things
> > > worked.  So I scouted around and found some masonite and cut a
> > > couple pads out that could be wedged between the magnet coils and
> > > the corners of the top cavity, and placed them such that the tube
> > > was centered in the coils again.
> > >
> > > Measureing for  center, I placed the iron places called wobble
> > > plates back on top of the dolly and wheeled it into the cubicle &
> > > hooked up the plumbing. Then I set the supply feed to Y which cut
> > > the beam voltage to about 10K volts, and raised the accel voltage as
> > > high negative as it would go, said a small prayer and brought up
> > > beam power. Body current was high so I had a limited time to see if
> > > moving the wobble plate would reduce it to a tolerable level, and it
> > > did.  Then I lowered the accel toward ground, wash, rinse, repeat.
> > > Put the beam supply back in delta mode, wash rinse and repeat. About
> > > that time I became aware that the beam was catching the gas ions and
> > > was carrying them to the collector bucket and probably burying them
> > > in the copper. Any way, a few minor tweaks and a tube they only paid
> > > 10g's for used was on the air at 85% power and a safe and slowly
> > > falling body current.  And the other state engineers finally
> > > understood they had been watching someone who knew what he was
> > > doing. And while I was by then tired, it was about a day before the
> > > grin let my ears come back to their normal position. I spent far
> > > more time teaching the young operators as they came on duty how to
> > > keep it adjusted than I did trying to teach the engineers observing
> > > me being a nerd. After all, they'd been to school, had sheepskins on
> > > the wall. I've an 8th grade education, but have never stopped
> > > learning. They had.
> > >
> > > Cheers, Gene Heskett
> >
> > If I had the time I would extract all of your good stories from the
> > debian users list and put them together
> >
> > regards
> Be my guest, but give me attribution. I've even been tempted to write it
> myself.  Its pure serendipity that seems to have put me in the right
> place at the right time.


I am on this list just for Gene’s stories.

>
>
>

Thread

Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 10:50 +0200
  Re: Is it possible to install Debian in such a case. Jonas Smedegaard <jonas@jones.dk> - 2019-05-10 11:00 +0200
    Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 11:10 +0200
      Re: Is it possible to install Debian in such a case. Brian <ad44@cityscape.co.uk> - 2019-05-10 11:30 +0200
        Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 11:50 +0200
      Re: Is it possible to install Debian in such a case. Joe <joe@jretrading.com> - 2019-05-10 11:40 +0200
        Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 12:00 +0200
          Re: Is it possible to install Debian in such a case. Greg Wooledge <wooledg@eeg.ccf.org> - 2019-05-10 14:20 +0200
            Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 16:20 +0200
          Re: Is it possible to install Debian in such a case. Curt <curty@free.fr> - 2019-05-10 15:30 +0200
      Re: Is it possible to install Debian in such a case. Jonas Smedegaard <jonas@jones.dk> - 2019-05-10 11:50 +0200
        Re: Is it possible to install Debian in such a case. <tomas@tuxteam.de> - 2019-05-10 12:10 +0200
          Tinker team (Was: Is it possible to install Debian in such a case.) Jonas Smedegaard <jonas@jones.dk> - 2019-05-11 01:10 +0200
            Re: Tinker team (Was: Is it possible to install Debian in such a  case.) <tomas@tuxteam.de> - 2019-05-11 09:10 +0200
              Re: Tinker team (Was: Is it possible to install Debian in such a  case.) <tomas@tuxteam.de> - 2019-05-11 10:00 +0200
              Re: Tinker team (Was: Is it possible to install Debian in such a case.) Jonas Smedegaard <jonas@jones.dk> - 2019-05-11 10:00 +0200
        Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 12:10 +0200
  Re: Is it possible to install Debian in such a case. Richard Owlett <rowlett@cloud85.net> - 2019-05-10 12:40 +0200
    Re: Is it possible to install Debian in such a case. <tomas@tuxteam.de> - 2019-05-10 13:00 +0200
      Re: Is it possible to install Debian in such a case. Richard Owlett <rowlett@cloud85.net> - 2019-05-10 13:40 +0200
        Re: Is it possible to install Debian in such a case. <tomas@tuxteam.de> - 2019-05-10 13:50 +0200
          Re: Is it possible to install Debian in such a case. David Wright <deblis@lionunicorn.co.uk> - 2019-05-10 16:00 +0200
            Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 16:20 +0200
              Re: Is it possible to install Debian in such a case. Richard Owlett <rowlett@cloud85.net> - 2019-05-10 16:30 +0200
                Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 16:40 +0200
                Re: Is it possible to install Debian in such a case. Richard Owlett <rowlett@cloud85.net> - 2019-05-10 17:00 +0200
                Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 17:10 +0200
                Re: Is it possible to install Debian in such a case. Richard Owlett <rowlett@cloud85.net> - 2019-05-10 17:30 +0200
                Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 18:00 +0200
                Re: Is it possible to install Debian in such a case. Brian <ad44@cityscape.co.uk> - 2019-05-10 20:10 +0200
            Re: Is it possible to install Debian in such a case. Brian <ad44@cityscape.co.uk> - 2019-05-10 17:40 +0200
              Re: Is it possible to install Debian in such a case. Felix Miata <mrmazda@earthlink.net> - 2019-05-10 18:10 +0200
                Re: Is it possible to install Debian in such a case. David Wright <deblis@lionunicorn.co.uk> - 2019-05-10 20:40 +0200
                Re: Is it possible to install Debian in such a case. Felix Miata <mrmazda@earthlink.net> - 2019-05-10 22:20 +0200
                Re: Is it possible to install Debian in such a case. David Wright <deblis@lionunicorn.co.uk> - 2019-05-21 16:50 +0200
  Re: Is it possible to install Debian in such a case. Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-05-10 14:50 +0200
    Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 16:30 +0200
      Re: Is it possible to install Debian in such a case. Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-05-11 08:30 +0200
        Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-11 14:00 +0200
          Re: Is it possible to install Debian in such a case. Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-05-11 15:00 +0200
          Re: Is it possible to install Debian in such a case. Brian <ad44@cityscape.co.uk> - 2019-05-11 15:20 +0200
            Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-11 22:30 +0200
              Re: Is it possible to install Debian in such a case. Brian <ad44@cityscape.co.uk> - 2019-05-12 13:00 +0200
  Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 17:00 +0200
    Re: Is it possible to install Debian in such a case. Greg Wooledge <wooledg@eeg.ccf.org> - 2019-05-10 17:10 +0200
      Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 17:20 +0200
      Re: Is it possible to install Debian in such a case. Brian <ad44@cityscape.co.uk> - 2019-05-10 17:30 +0200
        Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-10 17:40 +0200
        Re: Is it possible to install Debian in such a case. David Wright <deblis@lionunicorn.co.uk> - 2019-05-10 20:30 +0200
          Re: Is it possible to install Debian in such a case. Brian <ad44@cityscape.co.uk> - 2019-05-11 17:50 +0200
            Re: Is it possible to install Debian in such a case. Gene Heskett <gheskett@shentel.net> - 2019-05-11 19:30 +0200
              Re: Is it possible to install Debian in such a case. Joe <joe@jretrading.com> - 2019-05-11 19:50 +0200
                Re: Is it possible to install Debian in such a case. Gene Heskett <gheskett@shentel.net> - 2019-05-11 20:30 +0200
              Re: Is it possible to install Debian in such a case. Brian <ad44@cityscape.co.uk> - 2019-05-11 21:50 +0200
                Re: Is it possible to install Debian in such a case. Joe <joe@jretrading.com> - 2019-05-11 23:10 +0200
            Re: Is it possible to install Debian in such a case. David Wright <deblis@lionunicorn.co.uk> - 2019-06-27 17:30 +0200
              Re: Is it possible to install Debian in such a case. Reco <recoverym4n@enotuniq.net> - 2019-06-27 18:00 +0200
                Re: Is it possible to install Debian in such a case. David Wright <deblis@lionunicorn.co.uk> - 2019-06-27 20:20 +0200
                Re: Is it possible to install Debian in such a case. Gene Heskett <gheskett@shentel.net> - 2019-06-27 23:30 +0200
                Re: Is it possible to install Debian in such a case. David Wright <deblis@lionunicorn.co.uk> - 2019-06-28 01:20 +0200
                Re: Is it possible to install Debian in such a case. deloptes <deloptes@gmail.com> - 2019-06-28 08:20 +0200
                Re: Is it possible to install Debian in such a case. Curt <curty@free.fr> - 2019-06-28 09:40 +0200
                Re: Is it possible to install Debian in such a case. Joe <joe@jretrading.com> - 2019-06-28 09:50 +0200
                Re: Is it possible to install Debian in such a case. Gene Heskett <gheskett@shentel.net> - 2019-06-28 10:50 +0200
                Re: Is it possible to install Debian in such a case. deloptes <deloptes@gmail.com> - 2019-06-30 01:10 +0200
                Re: Is it possible to install Debian in such a case. Larry Martell <larry.martell@gmail.com> - 2019-06-30 02:10 +0200
                Re: Is it possible to install Debian in such a case. Gene Heskett <gheskett@shentel.net> - 2019-06-30 02:10 +0200
  Re: Is it possible to install Debian in such a case. An Liu <sourceonly@gmail.com> - 2019-05-13 00:20 +0200

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