test-drb October 2001

test-drb@ccmp.vtda.org

259 participants
770 discussions

by mythtech＠Mac.com

>Post a digital pic on your webpage so we can look 'n' see? K.. but it will have to wait until tomorrow (I have to bring my camera in to work). Any particular shots you want? Front, Sides, Insides... posing in a nightie? I was able to find a "part number" on the main board. Claims to be a 980100-01 Rev D. I am about to hit WYSE's site to see if that gets me anywhere. While I am posting pics, I will post ones of my other terminal for another phone system, since ultimatly I want to get it replaced as well. The other one I am guessing to be a Qume of some kind (I have better docs for the 2nd phone system, and it hints at it being a Qume, but doesn't say a Qume what, or even if it IS one). The two terminals look TOTALLY different. (but the 2nd one isn't as big of a deal, since I am able to connect a laptop to it running a TVI-50(?) emulator). -chris <http://www.mythtech.net>

22 years, 8 months

Amiga 3000 problem

by rachael_＠gmx.net

on 19-Sep-01 10:41:29, Willi Kusche wrote: >Hi! >On 19-Sep-01, Ethan Dicks wrote: >>I _think_ the Amiga 3000/16 had a 16Mhz 68881 and the A3000/25 >>had a 25Mhz 68882, but I could easily be mistaken. > I'm composing this message on an Amiga 3000 that had its motherboard >upgraded from 16 Mhz to 25 Mhz. Ever since the upgrade I occasionally get a >video crash that makes the screen unreadable. But, the system keeps running >OK. For example, if that video crash were to occur while I'm typing this >message, I've learned that hitting right-Amiga and 'S' will save the message >so I can finish the message after re-booting the A3000. Sounds like the two PAL ic on the left side, under any zorro cards you may have installed, they have a nasty habit of running hot, and makingen the screen unreadable. I changes mine and at the sametime removede the batteri for the RTC as it was leaking. Regards Jacob Dahl Pind -- CBM, Amiga,Vintage hardware collector Email: Rachael_(a)gmx.net url: http://rachael.dyndns.org

22 years, 8 months

IDing WYSE terminal

by dhquebbeman＠theestopinalgroup.com

> Is there a way to tell what type of WYSE terminal one is? Post a digital pic on your webpage so we can look 'n' see? -dq

22 years, 8 months

2.88 MB floppy drive, scsi?

by pete＠dunnington.u-net.com

On Oct 10, 14:18, Roger Merchberger wrote: > Rumor has it that Pete Turnbull may have mentioned these words: > > >Teac made SCSI floppies which were used by SGI and others; one of my > >Indigos has one, and a couple of friends have them too. The floppy is a > >more-or-less standard FD-235, except that most have a motorised eject. The > >SCSI card is an add-on, albeit a very compact one. > > > >If you don't want the SCSI cards, I can use them :-) > > VAXStations use them, too -- it's basically a SCSI to MFM bridgeboard that > is really quite compatible -- when my floppy drive died on my SCSI-enabled > PeeCee, I snagged my spare VAX bridgeboard w/1.44 floppy, set the SCSI ID & > slid it onto the chain... worked flawlessly. > > I doubt the bridgeboard would work for a 2.88Meg floppy, tho -- dunno if > the "BIOS" (for lack of a better term) supports that density as it didn't > exist until well after the board was built. Possibly not. I have a DEC one that certainly does, but it's much larger than the TEAC ones, which fit under the drive in a small frame the same form factor as the drive. They're so small and thin that at first glance you might not notice there's an "extra bit". -- Pete Peter Turnbull Network Manager University of York

22 years, 8 months

IDing WYSE terminal

by mythtech＠Mac.com

Is there a way to tell what type of WYSE terminal one is? I have a broken terminal that I need to figure out what kind it is, so I can connect a PC running emulation (or another terminal) to the system. The terminal itself carries only the name of my phone system (it is the operators terminal for it), but opening it shows a main board marked WYSE. But I can't find anything that says what KIND of wyse. Is there someplace is should be marked? It is possible to tell based on some of the chips? I also see some kind of a daughter card attached to the main board. Are these terminals custom programmable? Is it possible the phone system uses a stock terminal with some kind of custom additions (I sure hope not, but I have that fear, as the keyboard has some phone specific keys like Voice Mail on it... but I was really really hoping they were just regular keys and the system knows that things like "end" really mean enter the Voice Mail system). Anyone have any pointers for me about how to figure out what terminal type this is. Thanks (oh, and it should fit as on topic, since the only date I can find on the unit is a refurb'd sticker marked 1991, so it just had its 10 year B-day... at least since being refurbished, that and the phone system it belongs to was discontinued about 15 years ago) -chris <http://www.mythtech.net>

22 years, 8 months

vintage schematic for academic use (fwd)

by vcf＠vintage.org

Can anyone help Jeremy? Please respond to him directly. ---------- Forwarded message ---------- Date: Wed, 10 Oct 2001 13:04:14 -0500 From: "Nolle, Jeremy" <JNolle(a)rgare.com> To: "'archive(a)vintage.org'" <archive(a)vintage.org> Subject: vintage schematic for academic use Hi! I am a student at Washington University in St Louis, and as a project in my EE class I would like to turn an old laptop into a standard VGA display. I have currently access to several Toshiba displays (4400c, 4700ct, etc) and can get Zenith displays also (433 vlps) from the mid 1990s. Do you have (know where to find) schematics for these displays? I also have the mainboards from these laptops, as well, although I dont think that will help. I will be building an A/D controller, and need to get the schematic before I start. Thanks! Jeremy Nolle jmn3(a)cec.wustl.edu jnolle(a)rgare.com -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org

22 years, 8 months

ArcNet and the Pursuit of Multiple Topologies

by pete＠dunnington.u-net.com

On Oct 10, 15:45, Iggy Drougge wrote: > Was DIX really the original Ethernet? Wasn't that 10 Mbps and all? Depends on your definition, I suppose. I was being a bit lazy (ie inaccurate :-)) when I wrote "original DIX Ethernet". The first system called Ethernet was developed at Xerox PARC, and that was 3Mb/s. It was originally called "Alto Aloha Network" but the name was changed becasue it would work for any suitably-equipped machine, not just an Alto. The first proposed cross-platform *standard* was the DIX standard, which was 10Mb/s. -- Pete Peter Turnbull Network Manager University of York

22 years, 8 months

ArcNet and the Pursuit of Multiple Topologies

by pete＠dunnington.u-net.com

On Oct 10, 10:27, Dave McGuire wrote: > On October 9, Pete Turnbull wrote: > > much larger house :-) The same fibre that carries FOIRL can (if it's the > > right size, 50/125) carry 10baseF, 100baseFX, 1000baseSX, ATM, FDDI, ... > > FDDI generally uses 62.5/125 fiber. All of ours used 50/125. It has better performance, and it was the standard when ours was installed. A lot of other UK installations were done later, and used 62.5/125 because that was more common in Europe at that time -- but they're now regretting it as 50/125 has become the standard for Gigabit. -- Pete Peter Turnbull Network Manager University of York

22 years, 8 months

Half-duplex VT420?

by pete＠dunnington.u-net.com

On Oct 10, 7:44, Carlos Murillo wrote: > The vinegar seems to do a good job of eating the NiCd spill > and corrosion. What do other people on the list use? I usually use warm soapy water and a toothbrush, but I've used vinegar once or twice. -- Pete Peter Turnbull Network Manager University of York

22 years, 8 months

ArcNet and the Pursuit of Multiple Topologies

by dhquebbeman＠theestopinalgroup.com

> > At 10:26 AM 10/10/01 -0400, you wrote: > > >On October 10, Iggy Drougge wrote: > > >> >How about the original DIX Ethernet? Try a web search for Aloha. > > >> > > >> Was DIX really the original Ethernet? Wasn't that 10 Mbps and all? > > > > > > I believe the original Ethernet was 3Mbps. > > > > > > -Dave > On Wed, 10 Oct 2001, Tom Uban wrote: > > > Hmm, looking at my copy of: "The Ethernet, A Local Area Network, > > Data Link Layer and Physical Layer Specifications", from Digital, > > Intel, and Xerox, September 30, 1980 -- the specification says: > > "Data rate: 10 Million bits/sec" > > I don't know if it went to standard, but there definitely was 3Mbps > ether. I have a CHANNEL-3Mbps card for an S/370 here. You're right, Dave & Sridhar... from: http://www.baylor.edu/~Sharon_P_Johnson/etg/ethernethistory.htm 1972-The first experimental Ethernet system, Alto Aloha Network, was developed by Metcalfe and his Xerox PARC colleagues. It was designed to interconnect the Xerox Alto, a personal workstation with a graphical user interface, and linked Altos to one another, and to servers and laser printers. The data transmission rate was 2.94 Mbps [Spurgeon]. Regards, -doug q

22 years, 8 months

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test-drb October 2001