> Nathan would like to find a nice retirement home for his AT&T Unix PC.
> He's in Pittsburg, PA. Please contact him directly.
>
> Reply-to: Nathan.Thompson(a)respironics.com
> ---------- Forwarded message ----------
> Date: Tue, 16 Apr 2002 14:01:44 -0400
> From: "Thompson, Nathan" <Nathan.Thompson(a)respironics.com>
> Subject: inquiry
>
> I'm looking for a good home for my AT&T 7300 Unix PC. Kinda sorry to see it
> go, but the wife seems adamant. Let me know if this is an acceptable donation.
Behold the SWMBO: the ClassicCmp subscriber's Best Friend.
;)
> > > My computer's heavier than yours.
> > new sig: My computer's got more blinking lights than yours.
> My computer's slower than yours.
My computer dims the neighborhood's lights when I turn it on...
My computer has fewer transistors than yours...
My computer has no transistors, just tubes...
My computer's valves burn out faster than yours...
My computer's got more gears than yours...
Dwight Elvey said:
> Looking at ideas for a minimal computer, did you see:
>
> http://www.tu-harburg.de/~setb0209/cpu/http://eagle.eku.edu/faculty/styer/oisc.html has a description of a bunch
of single-instruction machines. Take a look at the ones which require only
byte moves and a memory-mapped program counter.
Roger Ivie
ivie(a)cc.usu.edu
>From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com>
>
>> > My computer's heavier than yours.
>> new sig: My computer's got more blinking lights than yours.
>My computer's slower than yours.
>
>
Mine's a 4004. What do you use that is slower ( just because
it runs windows doesn't mean the processor is slower).
Dwight
>X-Server-Uuid: 1b77f47c-118c-11d5-bbc5-0002a5132c3d
>X-Authentication-Warning: ns2.ezwind.net: majordom set sender to
owner-classiccmp(a)classiccmp.org using -f
>Date: Wed, 17 Apr 2002 09:45:56 -0700
>From: cdl(a)proxima.ucsd.edu
>To: classiccmp(a)classiccmp.org
>Subject: Re: More 11/750 PSU Qs
>MIME-Version: 1.0
>X-WSS-ID: 10A36FAD144315-01-02
>Content-Transfer-Encoding: 7bit
>
>> From: ard(a)p850ug1.demon.co.uk (Tony Duell)
>> Subject: Re: More 11/750 PSU Qs
>> To: classiccmp(a)classiccmp.org
>> Date: Tue, 16 Apr 2002 03:01:23 +0100 (BST)
>> In-Reply-To: <20020415200927.52402.qmail(a)web10301.mail.yahoo.com> from "Ethan
Dicks" at Apr 15, 2 01:09:27 pm
>> Sender: owner-classiccmp(a)classiccmp.org
>> Reply-To: classiccmp(a)classiccmp.org
>>
>> > > > > NO!. SMPSUs do not like being run in parallel (unless designed to be
>> > > > > used like that). One PSU will end up attempting to supply all the
>> > > > > current and the other PSUs may not like having voltages applied to
>> > > > > their outputs.
>> > > >
>> > > > And once the first one drops dead, the next
>> > > > most "powerful" one repeats the process.
>> > > > Proof by "induction" left as an exercise :-)
>> > > >
>> > > *giggle* OK, ok, thought it was best to ask.... *laughs manically*
>> >
>> > Presumably, if one could a) tolerate the voltage drops and b) find massive
>> > diodes (many amps for the intended application in an 11/750), it could be
>> > done safely. Please feel free to correct me if I'm wrong.
>>
>> Well, that would prevent one PSU from supplying a voltage to the outputs
>> of another (something that can really confuse the regulation circuitry!),
>> but it won't help with the current distribution problem. The PSU who's
>> output after the diode drop is the highest voltage will end up sourcing
>> all the current. Not what you really want.
>
>Aren't there some power supplies that can be run in constant-current
>or "current-limited" mode? I think I used to do that with a PDP8-E,
>when the power drain of the add-in boards exceeded the original 1/2 Amp
>per slot. A booster supply to provide more current.
>
> carl
>--
> carl lowenstein marine physical lab u.c. san diego
> clowenstein(a)ucsd.edu
>
Hi Carl
Sure, I've use supplies that are designed to be used in
parallel that would share current rather than having each
supply run in current limit mode. They were set up in such
a way that the voltage feedback was controlled by a master supply.
The slave supplies were set to track to the voltage on the
current sense resistor of the master supply only they took
their feedback form input of their own current sense
resistor. Only the master supply had voltage feedback from
the load. Most supplies that have a high side current sense
resistor can be modified to run this way.
When the masters current went up, it would create a higher
voltage on the sense resistor. This would cause the slaves
to increase their voltage on their sense resitor, evening
out the shared current.
Dwight
> -----Original Message-----
> From: pat(a)cart-server.purdueriots.com
> On Wed, 17 Apr 2002, Christopher Smith wrote:
>
> > > -----Original Message-----
> > > From: Doc [mailto:doc@mdrconsult.com]
> You also need to add your connecting hosts to your /etc/X11/Xaccess
> (or is it /etc/X11/xdm/Xaccess ?) config file, eg: a single "*" on the
> command line will allow any host to connect.
Did that too, but I will recheck it.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
> From: Fred Cisin (XenoSoft)
>
> > > My computer's heavier than yours.
> > new sig: My computer's got more blinking lights than yours.
> My computer's slower than yours.
>
My computer is uglier than yours...
Oop, hey, wait a minute...
--
--- David A Woyciesjes
--- C & IS Support Specialist
--- Yale University Press
--- mailto:david.woyciesjes@yale.edu
--- (203) 432-0953
--- ICQ # - 905818
Mac OS X 10.1.2 - Darwin Kernel Version 5.2: Fri Dec 7 21:39:35 PST 2001
Running since 01/22/2002 without a crash
HI Tony
Looking at ideas for a minimal computer, did you see:
http://www.tu-harburg.de/~setb0209/cpu/
I've just subscribed again to the list so I'm not sure
if this pointer has come up on this thread.
Dwight
PS Tony: I tried sending you a message directly
but I'm not sure it made it, on another subject.
> Date: Mon, 15 Apr 2002 22:51:16 -0500 (EST)
> From: <pat(a)cart-server.purdueriots.com>
> X-X-Sender: <pat(a)cart-server.ecn.purdue.edu>
> To: <classiccmp(a)classiccmp.org>
> Subject: Re: Assorted goodies & TK Question
> In-Reply-To: <200204160322.g3G3Mx621685(a)shell1.aracnet.com>
> Sender: owner-classiccmp(a)classiccmp.org
> Reply-To: classiccmp(a)classiccmp.org
>
> On Mon, 15 Apr 2002, Zane H. Healy wrote:
>
>
> > > Also, how do I get the disk out of an RRD40 without a computer attached?
> >
> > Um, unless you've got the 'clear sleave', I don't think you're going to get
> > the disk out without demolishing the drive! As long as that's the drive I'm
> > thinking of it uses a funky 'pincer' holder for the CD, with a clear
> > 'sleave' around it to make up the 'caddy'. You stick the caddy in the drive
> > and pull the 'sleave' back out. To remove the CD, you stick the 'sleave' in
> > and pull out the whole caddy. (hopefully that makes sense)
>
> How easy is it to take apart without killing the drive? Or can I make a
> 'clear sleve' very easily out of a couple of pieces of plastic?
>
The peculiar caddy comes from Philips, and was also used in some videodisk
players. My local Gateway Electronics store has a lot of junk related
to the Philips players, including a bunch of caddies. Or at least they
had them last time I was there, perhaps a month ago.
Maybe there is some similar store near where you are.
carl
--
carl lowenstein marine physical lab u.c. san diego
clowenstein(a)ucsd.edu
> -----Original Message-----
> From: Doc [mailto:doc@mdrconsult.com]
> Silly question, but did you restart gdm?
> Every ime I've set up remote desktops on a GDM server, It
> Just Worked.
Yes, lots ;)
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
