test-drb February 2002

test-drb@ccmp.vtda.org

293 participants
1043 discussions

1520 plotter (was RE: Your VIC-20 is worth $300!!! W@W!)

by Adrian.Graham＠corporatemicrosystems.com

> -----Original Message----- > From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk] > Sent: 29 January 2002 20:08 > To: classiccmp(a)classiccmp.org > Subject: Re: 1520 plotter (was RE: Your VIC-20 is worth $300!!! W@W!) > > Let me see if I get this. Somebody is stripping a useable (or > at least > repairable) plotter becsue the packing box is falling apart??? Calm down Tony :) I'm not stripping it because the box is tatty; I'm stripping it because it's a) bust and b) more use to someone else as spares than it is for me since I've already got 2 in the museum and don't need a 3rd broken one... a

23 years, 1 month

turning off volume shadowing on VMS?

by gunther＠aurora.regenstrief.org

ahh, one more question. How can I turn off volume shadowing on VMS 7.2 (?). I need to get physical access to some of the disks in the array so I can load an Ultrix filesystem image on them. But it won't let me mount/forreign a disk that's part of a shadow set. thanks, -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

23 years, 1 month

Q-Bus fear and other DEC busses ....

by gunther＠aurora.regenstrief.org

I read a web article the other day where the guy describes the various forms of the Qbus and he also said that you could fry certain cards when you stick'em in a wrong version of the Qbus. Since I have a uVAX II and a PDP11/03 I would want to know if I can mix and much cards with thoese busses or if I would fry a K[ZF]QSA board sticking it into the wrong bus. Also, why was the need for grant continuity cards an advantage? The OMNIBUS didn't need it but the UNIBUS (and Q-bus?) do. Also, what's the deal about grant continuity cards, they seem to just have a few lines shorted. In the UNIBUS box next to my VAX 11 it has some intermediary open slots but only one grant card plugged in. How could that work? Also, why can you stick 1x or 2x cards into the different sections, is there a difference where you put them? Why is the feed to the UNIBUS only a 2x card and where must you plug that? Is it magic? Are there UNIBUS backplanes with more than 9 rows? so many questions :-) -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

23 years, 1 month

so, can you run UNIX on a PDP11/03 or not?

by gunther＠aurora.regenstrief.org

I hear mixed messages about that. Is there someone who knows, and not only if any, but also which version of UNIX would run? I want to give it a shot. Also, has anybody ever run a VAX11 in PDP mode for real? Sound pretty wild to me to spend so much money only to not use the virtual memory. cheers, -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

23 years, 1 month

new RX02 disks?

by tom＠sba.miami.edu

Does anyone know of a source for new 8" floppies? I've borrowed some software that I need to copy and give back, and in the interests of longevity, I'd just assume not recycle a disk that is already 20 years old. Thanks, Tom

23 years, 1 month

Packrat genome project questions

by pete＠dunnington.u-net.com

On Feb 1, 8:14, Ethan Dicks wrote: > I know what you mean about a PET 4032 being elusive. It's one model I > haven't run across yet. I sold one about 4 years ago for UKP20 (about $30). > I do have a 4016 I need to repair - someone on > this list used to use it when it was at UC Santa Barara, IIRC - it has a > laboratory I/O package - BNCs and banana jacks in a metal box off to the > right side, and a small card cage inside that sits on the two 40-pin > expansion connectors. It's one of the ones that Commodore prevented from > being upgraded by perforating the motherboard at the upper 16K positions. > It can be restored, but there are several 3/8" holes and missing pads > and traces to work around. I remember upgrading a few like that in the early '80s. The college deliberately bought 4106s becasue the cost of memory was lower than the price difference, and we were a bit cheesed off to find those drilled holes. I upgraded them anyway, it just took a little longer. -- Pete Peter Turnbull Network Manager University of York

23 years, 1 month

Large ESDI Disks

by mcguire＠neurotica.com

On February 1, Ethan Dicks wrote: > > Certainly not within the size range that Sridhar was > > referring to but my MVII had dual Maxtor XT-8380E (380MB, ESDI, > > 5-1/4" FH) drives installed when I got it. One has since been pulled > > to act as a spare and replaced in the BA23 with a TK50. > > I have a 5.25"-tall, rackable box with two 5.25" full-height 1.2Gb ESDI > drives (plus room for two more) and an ESDI<->SDI converter (and room > for one more). I forget the maker, but it was one of the companies > that used to make add-on disks and the like 10 years ago (MBA Systems > Automation?) > > It's much quieter and reliable than my RA81. Ahhh, I have about four subsystems exactly like that made by Systems Industries. They are *wonderful*. I even have the docs. :-) -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

23 years, 1 month

cheap 16MB 30-pin RAM on eBay

by zaft＠azstarnet.com

At 11:29 AM 2/1/2002 -0600, you wrote: >Of course, 4900 feedbacks is alot too. From the picture, the simms look >like 70ns parity ram, but since the picture is off center, and he states >they are 80ns, the only way to know for sure would be to ask him. 70ns >parity modules could be used in many computers besides a Mac, but 60ns >would be much better for mid to late 486 and early pentium PC type boards. I don't recall seeing board that claimed to support 16M 30 pin simms. Do they 'automagically' support this size, or is it just a small group that actually used 'em?

23 years, 1 month

Low cost Thin Film Thickness Measurement System

by foo＠siconic.com

On 1 xxx -1, Sales(a)MissionPeakOptics.com wrote: > visit our website www.MissionPeakOptics.com for more information Time to restrict access to subscribers only. Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 1 month

Large ESDI Disks

by mcguire＠neurotica.com

On February 1, Christopher Smith wrote: > Speaking of which, does anyone know where to get controllers and/or > drives to use ESDI on QBus based VAXen? eBay. A few months ago, I picked up an Emulex QD21 for $10. -Dave -- Dave McGuire St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf

23 years, 1 month

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test-drb February 2002