test-drb April 2002

test-drb@ccmp.vtda.org

280 participants
1162 discussions

by pete＠dunnington.u-net.com

On Apr 19, 13:05, John Honniball wrote: > Tom Uban wrote: > > I'm looking for a supply of the uncommon DEC 20mA current loop male connector > > shells used to plug into DEC VT100s, Wyse 85s, and the like. > ... > > I am assuming that if I can find the > > shells, I can find a pin from either AMP or Molex which will work. > > I've kludged together cables for a PDP-11/34 by using the pins > out of those 4-pin Molex connectors that are normally used on > disk and tape drives. They're not Molex, they're AMP, and since they're the pins for that series of connector they'll work fine. Both the connectors used for DEC PSUs and 20mA loop, and the connectors used for disk drive power, are (or "were" in the case of the wide flat ones :-)) are from the AMP Commercial Mate-N-Lok series. So are the 3-pin DEC power bus cables. -- Pete Peter Turnbull Network Manager University of York

22 years, 8 months

AS/400s in the Champaign area

by csmith＠amdocs.com

> -----Original Message----- > From: Gene Buckle [mailto:geneb@deltasoft.com] > On Fri, 19 Apr 2002, Doc wrote: > > If it's "coke machine sized" and surplus, it's CISC. > Thanks Doc! I should also mention that I believe them to be relatively new. While there is no proof of this, they're supposed to come from a company that went out of business perhaps two years ago, and wasn't _in_ business for that long, AFAIK. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 8 months

The Unit (was: One-upsmanship (was: Secret Mac))

by dquebbeman＠acm.org

> Hans Franke wrote: > > > Well, for stand alone machines i'd say yes. Alas you may > > include necersary perhipherals. Like operators desk and > > so on. But only necersary - a Zuse doesn't work without > > the operator desk, while a average unix box quite well > > boots without console terminal. > > > BTW: who cares about PC boxes ? > > My PC jumps up and bites you in the LEG. Down BOY Down DOWN! Clearly, your PC hasn't been smacked with an Etherkiller lately... Curb that dog, son! -dq

22 years, 8 months

Secret Mac

by dan＠ekoan.com

Wow, a unique machine that Sellam *doesn't* have! http://www.wired.com/news/print/0,1294,51670,00.html

22 years, 8 months

Secret Mac

by carlos_murillo＠epm.net.co

At 11:14 PM 4/18/02 -0500, you wrote: >Here in Houston, one place drills holes in them with a 1/2" drill. Another >place dumps box loads of them into an industrial chipping machine. I can >verify these...I've seen it, and it isn't a pretty sight :/ >-Toth I wonder if that sort of treatment might get some beryllium oxide dust airborne... carlos. -------------------------------------------------------------- Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org

22 years, 8 months

Solid State Music MB-3 EPROM card question

by classiccmp＠mail.vintage-computer.com

I recently received an Altair 8800 with an Altair disk drive (Pertec FD514 innards). In said machine is a Solid State Music 2/4k EPROM board with 2 proms: DBL and MBL. My understanding is that the DBL prom is the boot loader for paper tape and cassette and the MBL is the boot loader for the disk. Assuming the PROMS (1702s) still hold data, I need to figure out the address of the code. The board has two sets of four dip switches. One is labeled T1 to T4 and the other A12 to A15. A jumper on the board that allows settings between 2k and 4k is set to 4k (1702s vs 1701s?) Does anyone have a manual or a really good memory of how these relate to the address of the on-board PROMS? I?m also interested in finding out how the sockets are addressed. The two proms are in the lower right sockets (the board has 2 rows of 9) and I?d have thought from the markings that the upper left sockets were the first two to be addressed. I?m not yet that familiar with S-100/Altair type systems, but I assume if I know this address I can execute the code to boot the machine (assuming the drive still works and the disks aren?t bad. . . ) Thanks in advance for any help you can provide. Erik

22 years, 8 months

AS/400s in the Champaign area

by csmith＠amdocs.com

> -----Original Message----- > From: Russ Blakeman [mailto:rhb57@vol.com] > Is this the black or beige series of AS/400? There should be > 170, 250, 730, 740, etc. I don't know a hell of a lot about > the older beige > units but I think they are for OS/390 instead of OS/400 anyway. Beige. Are you saying that you can run OS/390 on an AS/400? That sounds odd to me. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 8 months

OT: boatanchor mailing lists and resources?

by tothwolf＠concentric.net

I know there are a few boatanchor fans here on the list, so I figured I'd check here before spending yet another hour arguing with Google... Basically, where are the good boatanchor related mailing lists and resources at? I'm looking for resources on restoration and building home brew tube based gear. I have a National NC-2-40-CS receiver that I was given back around 1995 or so, which needs its power transformer rebuilt/replaced, in addition to lots of other minor repairs. Unfortunately, the former/original owner of that receiver passed away before he could find the manuals for it that he had filed away. A couple of weeks ago, I was given an unfinished home brew 2 Meter Receiver that is about 50-60% assembled. It was built by a friend of mine who passed away about 2 years ago. Today, while cleaning out more old parts and gear from his former shop, I found the faded plans for it and a matching transmitter. Both appear to have been hand copied from the October 1957 issue of QST. I don't currently know when I'll have time to work on these projects, but I'd like to have the resources and information I'll need available when I find some free time. -Toth

22 years, 8 months

Guys take a look at this qbus cpu board on Ebay :-)

by mcguire＠neurotica.com

On April 19, Zane H. Healy wrote: > There is no shortage of real PDP-11's around here, the biggest problem I Huh? Where are you? I think it's time for a road trip. -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

22 years, 8 months

ASR33 print head

by dwightk.elvey＠amd.com

For those that want on line manuals, check: http://www.pdp8.net/index.shtml Near the end of the page, under other you'll find ASR 33 Teletype. Besides these he has a great site for PDP-8's I was thinking, it might be a good idea to make a mold of the print head I have. One could then make one in the future to replace it. I'm not sure, not having it right here, but I think the head is some kind of metal over plasic. It could be nickel or something that doesn't rust. It could also be low temperature type setters metal of some type. Dwight >From: "Russ Blakeman" <rhb57(a)vol.com> > >Here's something I found in the ClassicCmp archives, noting that there is a >person with a 3 volume set of manuals for the ASR33... >---------------------- >Re: Printers >From: Marvin (marvin(a)rain.org)

22 years, 8 months

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test-drb April 2002