- test-drb@ccmp.vtda.org - classiccmp.org

by Mzthompson＠aol.com

On Sun, 14 Oct 2001, ard(a)p850ug1.demon.co.uk (Tony Duell) wrote: > I have come across a chip that I don't have the pinout of. It's a 4063, > presumably 4000-series CMOS. The one in the device is made by RCA. > From the function in the circuit, I would guess it's some kind of 4 bit > comparator. Correct, RCA data book lists as CD4063B CMOS 4-Bit Magitude Comparator > Does anybody have the pinouts (16 pin DIL). It's not in any of my CMOS > databooks that I can find. If you do, could you please type them as a > simple text file (as in Here's the pinout: 1 : B3 2 : (A<B)in 3 : (A=B)in 4 : (A>B)in 5 : (A>B)out 6 : (A=B)out 7 : (A<B)out 8 : Vss (or Gnd) 9 : B0 10 : A0 11 : B1 12 : A1 13 : A2 14 : B2 15 : A3 16 : Vdd Mike

25 years

1
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classiccmp-digest V1 #747

by philpem＠bigfoot.com

On Sat, 13 Oct 2001 at 22:51:32 -0400 "Glen Goodwin" <acme_ent(a)bellsouth.net> said: > Philip Pemberton wrote: > > > A while ago I got a Phonemark "Quick Data Drive", aparrently made by > > Entrepo. It uses small endless-loop tape cartridges called "Wafers" (any > > relation to the Rotronics Wafadrive? hmm...). > > Sounds like this device uses the same "stringy floppy" tape as the A&J > Microdrive and the Wafadrive. Looks like it - I found a post on GoogleGroups from someone who said the Wafadrive used the same carts. > > I've had the cover off, and it appears to use a small-ish black plastic > > mechanism with "BSR" printed on it. This mechanism looks (from the front) > > exactly like the ones on the Rotronics Wafadrive. Anyone know if > Wafadrive > > cartridges will work with it? Anyone know where to get Wafadrive > cartridges? > > Try comp.sys.sinclair. Be advised that Entrepo made two types -- A and B. > Same tape, different housing. I have A&J drives (one each A and B type) > hung off my TS2068. Hmm... Live and learn. By TS2068 I assume you mean the Timex/Sinclair 2068. > The drives are slow, and the tapes are extremely fragile, to the point that > I rarely use the drives any more, in order not to destroy my few remaining > tapes. Urk! Time to get a few tapes in while they're still available :-) If the tape is that fragile, I might pull one apart and replace the tape with better quality tape. Or I might design my own "stringy floppy" drive - even more fun! Anyone got a spare QOS wafer? -- Phil. philpem(a)bigfoot.com http://www.philpem.f9.co.uk/

25 years

1
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Epson Equity 1

by kcalvin＠chartertn.net

I'm looking for a keyboard for an Epson Equity 1. I have many vintage computers and parts for trading. Thanks, Kent

25 years

1
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Semi-OT : 4063 pinout

by Antonio.Carlini＠riverstonenet.com

>Does anybody have the pinouts (16 pin DIL). It's not in any of my CMOS >databooks that I can find. If you do, could you please type them as a >simple text file (as in From www.freetradezone.com: 1. B3 2. (A<B) IN 3. (A=B) IN 4. (A>B) IN 5. (A>B) OUT 6. (A=B) OUT 7. (A<B) OUT 8. Vss 9. B0 10. A0 11. B1 12. A1 13. A2 14. B2 15 A3 16 Vdd Antonio

25 years

1
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Research Machines Information

by Antonio.Carlini＠riverstonenet.com

>I've scanned the schematics from the 480Z Information File and put them >online. However, they are hand-drawn, so I've had to scan them in >grayscale at 300dpi in order to be readable. > > http://vt100.net/rm/480z/schematics/ Be warned that the page does not load if you have Javascript on (at least in Netscape 4.7). It appears to be missing at least http://vt100.net/rm/480z/rml.css. Netscape 6 OTOH is fine. Antonio

25 years

1
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Radio shack TRS-80 PC-1 and PC-2

by technos＠nerdland.org

On Saturday, October 13, 2001 3:06 PM, Tony Duell [SMTP:ard@p850ug1.demon.co.uk] wrote: > I have the Sharp PC1500 (very similar to the TRS-80 PC2) technical > manual.... (well, I would, right :-)). > > It doesn't say that much about the cassette format, but it does say > something. If there are any details you're not sure about, feel free to > ask me in case I can find them... > > > > > I *WILL* IRC from one of these, goddamnit.. > The PC-1500 is the same calc. The only differences are in the badge and the keyboard. You can plug Sharp modules, printer, etc into the RS (and vice versa) I have the RS equivalent technical manual. It gives specifications on the frequency encoding and rate. I also managed to scrounge a break down of the raw hex to Basic operand (two digit hex code to each operator/char, a small amount of padding) > Err, add a CE158 RS232 interface (to the PC2/Sharp PC1500)? It contains a > 1-line terminal emulator in the ROM :-) Yes this device does exist... > > Radio Shack sold a similar unit for a time. The ROM and RS232 interface > was indentical, but the Centronics port (present on the CE158) was not > fitted. The commands to talk to it were still in the ROM, but undocumented... > > I have one of each type. With the latter one, I could have added the > Centronics port (it's only a couple of buffer chips, and I have all the > schematics), but instead I packed an ADC chip in there, using the 'spare' > port lines on the I/O chip to talk to it (I/O lines that would have been > used for the centronics port, etc). Made a nice pocket data logger :-) > > -tony The problem is finding one. I've had *no* luck, and even if I could find one, it wouldn't help me with the PC-1 (Sharp PC-1211) anyway. Jim

25 years

2
1
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SCSI pros & cons

by acme_ent＠bellsouth.net

I wrote: > > If you have a pile of cards, one machine, and none > >of the cards work in that specific box, I'd suggest that there may be a > >fault in the box, or another device in there which conflicts with your SCSI > >cards. Iggy replied: > Who cares what the cause is? The point is that it won't work. ??? Well, *I* care what the cause is. If you put a piece of hardware in a system and it doesn't work, don't you want to know why??? I don't understand this. > I see that BIOS setup utility on the cards as a sympthom of the low level of > integration. The cards behave as an alien entity in the computer. ??? Okay, so you have to integrate the card into the system yourself, and that setup utility gives you the information and control you need to do it. Alien entity? What do you mean??? Glen 0/0

25 years

3
2
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big physics labs

by dec.parts＠verizon.net

Mike (and any others), If you frequent "big physics" or other labs, you might know of the whereabouts of a part that is currently needed. If you do, it could be payday for you. Need from 1 to 8 Eltec Eurocom-7 VMEbus CPU's order number ( Rev. ) B130 or equivalent. Sincerely, Bennett > What about the system that was used in large scale lab stuff, > I am thinking by Kinetic Systems and it linked instrument racks > together that they called Crates. They were all over the big > physics labs.

25 years

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ArcNet and the Pursuit of Multiple Topologies

by john_boffemmyer_iv＠boff-net.dhs.org

hmmm, what about usb net linq? i know it's new and i'm probly gonna get flamed for saying it, but it's just as new as 802.11b wireless. and what about phonenet/phonelink 10mbit over the phone lines in the house? or even powerlink, 8mbit over the power outlets in your house? - John Boffemmyer IV At 10:47 AM 10/14/01, you wrote: > > Sellam Ismail wrote: > > > > > > On Tue, 9 Oct 2001, Tarsi wrote: > > > > > > > 4) Any other interesting topologies I should try? I have plans to > > > > do: Arcnet, FDDI, Token ring, Localtalk, 10b2, 10b5, 10bT, 10bTX, > > > > 10bFiber, and (eventually) 802.11b wireless. > > > > > > String and tin cans? > > > > > Message in a bottle ??? > >Smoke signals? Talking drums? > >...Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom... > >-dq ---------------------------------------- Founder, Lead Writer, Tech Analyst and Web Designer Boff-Net Technologies http://boff-net.dhs.org/index.html ---------------------------------------

25 years

1
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ArcNet and the Pursuit of Multiple Topologies

by dhquebbeman＠theestopinalgroup.com

> Sellam Ismail wrote: > > > > On Tue, 9 Oct 2001, Tarsi wrote: > > > > > 4) Any other interesting topologies I should try? I have plans to > > > do: Arcnet, FDDI, Token ring, Localtalk, 10b2, 10b5, 10bT, 10bTX, > > > 10bFiber, and (eventually) 802.11b wireless. > > > > String and tin cans? > > > Message in a bottle ??? Smoke signals? Talking drums? ...Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom-ba-ba-Boom... -dq

25 years

1
0
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RS6000 7012-320H

by cmurillo＠emtelsa.multi.net.co

Today I came by an RS6000 7012-320H (Powerserver 320). On topic, since it was introduced in '91. It seems to have 16MB RAM, a SCSI card, an 800MB HD, 25MHZ cpu and a 8-port serial card. No framebuffer. There was an 8mm tape unit that came with it. Oh, and, >from what I can gather from the IBM web site, it is missing some sort of "ethernet riser card" which seems to provide the means to drive enet starting from a network header on the mainboard. I should be getting some of the terminals that were hooked to this beast. However, I have neither keys nor AIX install media. So I have several questions: 1) Which OS' (besides some old version of AIX) run on this box? Or, if I am stuck with AIX, in addition to praying that the HD is still alive, how could I break in and change the root password? 2) What exactly is this "ethernet riser card"? Do I have a network-less system? 3) Late last year, I posted a message to this list about some SIMMs that I grabbed off an AS400 system; they look like 72pin SIMMs but have a slightly different form factor and won't fit in a standard 72 pin socket. The thing is, they seem to fit the sockets in this system. And, that AS400 was equipped with exactly the same model of HD that this RS6000 has. So I am wondering if those 4MB SIMMS will fit this system, which is filled with 2MB SIMMS... carlos. -------------------------------------------------------------- Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org

25 years

12
22
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Research Machines Information

by Simon.Hardy＠hemel-hempstead.sema.slb.com

Paul, Many thanks.... heres hoping I can get the info I need from them to get this machine back up and running. Regards Simon -----Original Message----- From: Paul Williams [mailto:celigne@tinyworld.co.uk] Sent: 13 October 2001 20:31 To: classiccmp(a)classiccmp.org Subject: Re: Research Machines Information "HARDY, Simon" wrote: > > Desperately seeking any 480z or 380z manuals or other information, > online, original or photocopy. I've scanned the schematics from the 480Z Information File and put them online. However, they are hand-drawn, so I've had to scan them in grayscale at 300dpi in order to be readable. http://vt100.net/rm/480z/schematics/ ___________________________________________________________________________ This email is confidential and intended solely for the use of the individual to whom it is addressed. Any views or opinions presented are solely those of the author and do not necessarily represent those of SchlumbergerSema. If you are not the intended recipient, be advised that you have received this email in error and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you have received this email in error please notify the SchlumbergerSema Helpdesk by telephone on +44 (0) 121 627 5600. ___________________________________________________________________________

25 years

1
0
0 0

Radio shack TRS-80 PC-1 and PC-2

by technos＠nerdland.org

Well, the idea is this; Simple three line basic prog running on the calc, doing 'input#' for data from a sound card. The encoding format is kind of documented as is the text->bin conversion. There are already a pair of programs that will handle conversion from wav->bin->text or bin->wav, just not text->bin->wav. They're also DOS utils with no source availibility, and their support for the PC-1 (Sharp PC-1211) isn't 100%.. Jim On Saturday, October 13, 2001 10:13 AM, Cameron Kaiser [SMTP:spectre@stockholm.ptloma.edu] wrote: > > Welp, have managed to reach the fellow who wrote the conversion utilities > > for > > these fine calculators.. And got a very nice pointer to pretty much all I > > would > > ever want to know about them. Now I get to start on a Linux kernel driver to > > > > make them appear as serial devices.. A couple hundred baud fake serial > > connect over /dev/dsp is looking mighty feasable.. > > I'd love to hear how this worked. I've got a PC-3 and PC-4 in my stable. > Care to explain in greater detail how you're connecting/communicating with > them? > > -- > ----------------------------- personal page: http://www.armory.com/~spectre/ > -- > Cameron Kaiser, Point Loma Nazarene University * > ckaiser(a)stockholm.ptloma.edu > -- UBAX vs lbh ybir EBG-13 > ----------------------------------------------------

25 years

1
0
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Squealing CRTs

by mythtech＠Mac.com

>>I don't intend to take up high-voltage repairs as another hobby of mine. I'm >>too intent on keeping on living with all my bodily functions intact. > >Aw, you haven't lived until you've been kicked across the room by a HV >powersupply I wasn't that lucky... when I did it, I shorted a cap thru my finger (fortuantly, just thru ONE finger, tip to knuckle). I was working blind in a terminal, and I thought some animal was in there that just ripped my finger off... I was really expecting to pull out my hand and see a stump where my finger had been. Instead I had a really cool exit wound on the tip of my pointer (but not as cool as the one on my elbow when I shorted theater lighting thru my forearm) -chris <http://www.mythtech.net>

25 years

2
1
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Half-duplex VT420?

by optimus＠canit.se

Since I'll be running another headless computer (HP 9000/380), I brought home my VT420. Nice terminal, but unfortunately this specimen will only talk, not listen. At first, I suspected my HP had lost its settings (the stupid boot PROM must be set via the keyboard to use a serial console). I proceeded to bring my HIL keyboard home and set it (without any screen) to use a "remote" console again, and the machine seemed to acknowledge that, beeping happily. But no response >from the terminal. So I tested it with my DECstation. No response there either. So I hooked it up to my Amiga. Typing at the keyboard, there was output in NComm, but doing the opposite didn't work at all. So we have only one-way communication. What could be the problem? The cable works fine, I'm getting -- En ligne avec Thor 2.6a. Allt ?r under kontroll, och caps lock ?r bredvid.

25 years

6
8
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ArcNet and the Pursuit of Multiple Topologies

by pete＠dunnington.u-net.com

On Oct 9, 12:50, Tarsi wrote: > I've decided that one of my goals is to run every networking topology > possible in my house, regardless if I actually NEED to run them or not. :) > 4) Any other interesting topologies I should try? I have plans to do: > Arcnet, FDDI, Token ring, Localtalk, 10b2, 10b5, 10bT, 10bTX, 10bFiber, and > (eventually) 802.11b wireless. ATM would be good, and although there's a lot of it around, you should be able to pick up a couple of routers fairly cheaply. Acorn Econet? There's Linux support for that too. How about the original DIX Ethernet? Try a web search for Aloha. Sinclair (Timex) machines like the Spectrum and QL used a proprietary network, but I think the only other company to ever use it was ICL. Do you count ADSL, ISDN, X.21, or just LAN stuff? 10base2, 10base5, 10baseF (and FOIRL), 10baseT, 100baseTX, 100baseT4, 100baseFX, 1000baseTX, 1000baseSX, 100baseLX and 1000baseCX are all closely related and you will find some excellent references at http://www.techfest.com/networking/lan.htm 10base2 and 10base5 are bus topologies using 50-ohm coax; 10baseF (and its predecessor FOIRL), 100baseFX, and 1000baseSX/LX are fibre technologies often used as point-to-point but can be used in star networks too; 10baseT, 100baseTX, and 100baseT4 use UTP and are normally used in star topologies. Before you get too carried away, you might want to think about the permutations of protocols, technologies, and topologies or you'll need a much larger house :-) The same fibre that carries FOIRL can (if it's the right size, 50/125) carry 10baseF, 100baseFX, 1000baseSX, ATM, FDDI, ... I have a thin Ethernet (10base2) segment, a thick Ethernet (10base5) segment, a lot of Cat5e carrying 10baseT and some 100baseTX, a chunk of FDDI, some FOIRL, 10baseF, and potentially 100baseFX, at home; and there's lots of redundant ATM kit at work but (a) I have no room, and (b) I'd have to buy it (which is against my religion). I also have some Econet, ISDN, UUCP serial links, etc. -- Pete Peter Turnbull Network Manager University of York

25 years

5
5
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ArcNet and the Pursuit of Multiple Topologies

by dittman＠dittman.net

> > > IP over carrier pigeon!! > > > > UUCP over floppies ferried by cars! BLEEEAAAAAARGH!! > > > > Peace... Sridhar > > Unless I'm mistaken Dave is talking about a transmittion method that's > actually been used. There is actually an RFC for it. Haven't carrier pigeons been extinct long before IP and UUCP were developed? -- Eric Dittman dittman(a)dittman.net Check out the DEC Enthusiasts Club at http://www.dittman.net/

25 years

13
14
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ArcNet and the Pursuit of Multiple Topologies

by mcguire＠neurotica.com

On October 9, Sellam Ismail wrote: > > 4) Any other interesting topologies I should try? I have plans to > > do: Arcnet, FDDI, Token ring, Localtalk, 10b2, 10b5, 10bT, 10bTX, > > 10bFiber, and (eventually) 802.11b wireless. > > String and tin cans? IP over carrier pigeon!! -Dave -- Dave McGuire Laurel, MD

25 years

11
14
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Looking for : IBM 5110 Serial IO adapter software

by mythtech＠Mac.com

>We have an IBM 5110 with a serial adapter and have recently verified >that the tape drive is operational. We are, however, missing the >software cartridge for the serial adapter. > >Does anyone have a copy who would be willing to make a copy? We can >supply a blank cartridge and pay shipping costs. I have a 5110 tucked away in a corner (I was actually just thinking about it yesterday). I don't know if I have the tape you are looking for, but if you tell me what I should look for, I can check. Are the 5110's of any collector value (not that I would ever part with mine, but I am curious if it is just me that wants to keep it, or if it is actually a valued machine). Mine has this big dual 8" floppy drive box. I *THINK* it might also have a 5mb hard drive built into the floppy box, but I don't remember (the thing has been shut down and in storage for about 12 or 13 years... so it may not work anymore) -chris <http://www.mythtech.net>

25 years

5
4
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H88 kit available

by donm＠cts.com

Sorry folks, it's gone, Emanuel Stiebler was first on the mark. - don

25 years

1
0
0 0

Phonemark/Entrepo Quick Data Drive

by acme_ent＠bellsouth.net

Philip Pemberton wrote: > A while ago I got a Phonemark "Quick Data Drive", aparrently made by > Entrepo. It uses small endless-loop tape cartridges called "Wafers" (any > relation to the Rotronics Wafadrive? hmm...). Sounds like this device uses the same "stringy floppy" tape as the A&J Microdrive and the Wafadrive. > I've had the cover off, and it appears to use a small-ish black plastic > mechanism with "BSR" printed on it. This mechanism looks (from the front) > exactly like the ones on the Rotronics Wafadrive. Anyone know if Wafadrive > cartridges will work with it? Anyone know where to get Wafadrive cartridges? Try comp.sys.sinclair. Be advised that Entrepo made two types -- A and B. Same tape, different housing. I have A&J drives (one each A and B type) hung off my TS2068. The drives are slow, and the tapes are extremely fragile, to the point that I rarely use the drives any more, in order not to destroy my few remaining tapes. Glen 0/0

25 years

1
0
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Looking for Turtle Tot information

by jtinker＠coin.org

The Turtle Tot is a two-wheeled robot, that is about a foot in diameter. It communicates with a computer via RS-232. The supporting software was made by Harvard Associates. I think the actual robot was made by Flexible Solutions, a Tasmanian company. The one I have is missing several chips, and I am trying to find out what they are. If anyone has documentation on this device that includes the board layouts, I could use some help. Thanks, -- John Tinker

25 years

1
0
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classiccmp-digest v1 #690

by jfmiller＠nc.rr.com

>> CESIL (Computer Education in Schools Instructional Language), >Ha ha, I'd forgotten about that one... I remember typing in a CESIL >interpreter into the Speccy from some magazine or other. It >was even slower than ZX BASIC though so I gave up on it after a couple of weeks.. I wrote that "interpreter". It was published in ZX Computing I think. I still have the magazine upstairs. The original program was written for my 'O'-level in Computer Studies. The magazine had already published Moon Rescue (a rip-off of Lunar Lander) that I wrote one weekend after Swap Shop had been cut short for some sporting event. Smelling the lure of money (15 quid was a lot for a 15-year old in 1981!), I thought I'd send of the ZX-CESIL after converting it from my ZX-81 to my Spectrum. I remember using the real ICL-CES CESIL at school - writing out the code on sheets of paper, sending them off to the local poly. We had a TTY link with an old-fashioned modem and a paper tape reader to boot. We were very jealous of one of the other schools that had a VDU monitor! Ah, yes. Those were the days. My friends and I used to talk about how great it would be to have a VDU with such hi-res graphics that you could do 1024 x 1024 in full 24-bit RGB. We calculated the cost of the RAM to hold one frame and it came to hundreds of thousands of pounds. Not in our life time, we thought. Hee-hee. BTW, I've seen my ZX-CESIL2 on a Russian Spectrum software repository site that you can download and run via a Z80 emulator. Pointless but fascinating! John.

25 years

1
0
0 0

Burroughs E6000

by plboland＠home.com

As late as 1977 ! was using two Burroughs E6000 computers to perform the function of loan payment application. The loans were for health club membership in the Chicago area and a great deal of the rest of the upper midwest area. We had over 50,000 loans outstanding at any time and processed from 1,000 to 3,000 loan payments a day. The machines we had were magnetic stripe ledger card readers and they would punch an output card with the results of the processing of the transaction. The latest information about the loan kept on a master deck of cards was replaced with the card that was punched as a result of the transaction on the E6000. The update was performed on a daily basis using the 085 sorter and a reproducer/collater. During the last 8 to 12 months of the use of the E6000, while a conversion was being worked on, we used only one E6000 and kept the other one for spare parts. Burroughs had run out of spare parts. The system worked, but it was manually work intensive, fraught with errors and created a great deal of work at the end of the month to balance the ledgers.

25 years

1
0
0 0

Looking for : IBM 5110 Serial IO adapter software

by mythtech＠Mac.com

>>>Are the 5110's of any collector value (not that I would ever part with >>>mine, but I am curious if it is just me that wants to keep it, or if it >>> >> >> The ones with APL seem to be harder to find than the ones with >> BASIC :( >> >> (I'm looking for a working APL model of 5100, 5110, or 5120 ... >> can trade BASIC model of 5110 or 5120) > > >Ours is an APL model - sorry not available. > >Surely the dual APL/Basic are even rarer? Know what... mine might be a dual! I remember using Basic on it, and there is a front switch to go between basic and something else. I would have said mine was basic only, but just friday, while cleaning out some old stuff, I came across the APL manuals for the 5110... so that would sure tell me mine is a dual (I only have the one, so the APL stuff didn't go it a different machine). And nope, mine isn't available either.... except maybe in trade for a new pickup truck... I am in desperate need for one of those. -chris <http://www.mythtech.net>

25 years

1
0
0 0

ArcNet and the Pursuit of Multiple Topologies

by pete＠dunnington.u-net.com

On Oct 13, 13:10, Eric J. Korpela wrote: > > 100baseTX uses the same pairs as 10baseT. > > > I thought that 100bTX uses 3 pairs for full duplex (at least my > wiring instructions say it uses 1+2 3+6 and 4+5.) Have I gotten some > misinformation? Yes, I'm afraid you have! 100baseTX uses the same pairs as 10baseT, no more, no less. 4+5 are definitely not used. However, they are used (along with 7+8) for 100baseT4, which uses a different encoding and modulation scheme to permit 100Mb/s operation over lower-grade cable, using all 4 pairs, and similarly 1000baseTX uses all four pairs. Nothing I know of (certainly no standard Ethernet technique) uses three pairs. In 100baseTX full-duplex (and 10baseT full-duplex which is an extension of the older standard, not always supported) the same pairs are used for transmit and receive as in half-duplex. The only difference is that both pairs are allowed to be active at the same time (which would be counted as a collision otherwise). -- Pete Peter Turnbull Network Manager University of York

25 years

1
0
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Eric Smith asked me to post this

by mac＠Wireless.Com

Hi, Eric Smith, currently stuck in Colorado with a large truck full of classic stuff has asked me to post this. (He doesn't have net access.) He appreciates the outpourings of concern, and wishes to communicate that all appears to be under control now. The springs are being repaired on the truck and he should be able to finish the journey. Thanks everybody for your concern. -Mike (for Eric)

25 years

1
0
0 0

Research Machines Information

by Simon.Hardy＠hemel-hempstead.sema.slb.com

Chris, Thanks for the suggestion...But already looked at that, the keyboard is the old two metal contacts (2mm apart) on the board and a conductive surface under the key type.... No sign of spillage or delay in key returning to normal... I suspect a component fault, but have no idea where to look without a manual... Desperately seeking any 480z or 380z manuals or other information, online, original or photocopy. Rgds Simon -----Original Message----- From: Chris [mailto:mythtech@Mac.com] Sent: 11 October 2001 16:03 To: Classic Computer Subject: RE: Research Machines Information >the keyboard repeats (a bit like local >echo). If I press a key, I get two of the same character on the screen. One >appears when the key is pressed, and the other when it is released. I have seen this happen MANY MANY times with PC keyboards, so maybe my findings apply. In every instance that I have found it, it is beacuse someone spilled either soda or coffee into the keyboard, and the pads were sticking. The key would register when pressed, and then when released, the pad wouldn't pop up right away, instead it would "peel" up, and cause a 2nd (or sometimes a 3rd if it was sticky enough) registration. Opening the keyboard and washing with alcohol or contact cleaner has always fixed it for me. -chris <http://www.mythtech.net> ___________________________________________________________________________ This email is confidential and intended solely for the use of the individual to whom it is addressed. Any views or opinions presented are solely those of the author and do not necessarily represent those of SchlumbergerSema. If you are not the intended recipient, be advised that you have received this email in error and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you have received this email in error please notify the SchlumbergerSema Helpdesk by telephone on +44 (0) 121 627 5600. ___________________________________________________________________________

25 years

3
4
0 0

Radio shack TRS-80 PC-1 and PC-2

by technos＠nerdland.org

Welp, have managed to reach the fellow who wrote the conversion utilities for these fine calculators.. And got a very nice pointer to pretty much all I would ever want to know about them. Now I get to start on a Linux kernel driver to make them appear as serial devices.. A couple hundred baud fake serial connect over /dev/dsp is looking mighty feasable.. I *WILL* IRC from one of these, goddamnit.. Jim

25 years

4
3
0 0

SCSI pros & cons

by acme_ent＠bellsouth.net

> > Who cares what the cause is? The point is that it won't work. > > This comment worries me a lot (mind you, it's typical of the mentality of > PC-goons, but I thought this list was mostly hackers)... > > Whenever something doesn't work, my first reaction is to fix it. And the > first stage in fixing a problem is to identify what that problem is (at > whatever level of detail is necessary to be able to decide on the right > repair). > > -tony I'm with you, Tony. From what Iggy wrote it appeared that he stuck a bunch of boards in a system, didn't get the results he expected, and just gave up. I simply do not understand this sort of thinking. Aren't we supposed to be the ones in control of the machines??? Glen 0/0

25 years

2
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IDing WYSE terminal

by mythtech＠Mac.com

> There is WYSE emulation >software available, but at a cost. Do you know a product name? where can I get info? I can find a free wyse 50 emulator (well, sort of, there is one in an old version of ProComm+ that I have), but it doesn't seem to work with the system. Otherwise, is there someplace I can look up the spec for the protocol it uses... maybe write my own emulator. Is this public info, or would I have to buy the rights from Wyse? -chris <http://www.mythtech.net>

25 years

6
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Philbrick?

by mranalog＠home.com

John Allain wrote: > While cleaning up some garage space (yes, so a Car could > go in there) I came across a cache of some things I knew I > had and one thing I forgot. > A 2 tube module.from George A. Philbrick Researches Inc. > It's a GAP/R K2-W with "computor" tubes in it. > > Before anybody vomits (as regards computor) could > somebody remind me who Philbrick was? > The name seems familliar. TIA 1946 George A. Philbrick Researches Inc. (GAP/R) founded by George Arthur Philbrick, electronic analog computer pioneer. The company produced many innovating electronic analog computer designs. During the 50's and early 60's they had the opamp market pretty much all sewn up. 1966 Merged into Teledyne Philbrick Nexus, Which became Teledyne Philbrick, Which became Teledyne Components, 1993 Became TelCom Semiconductor. The K2-W was the first commercially available opamp. Open loop gain of 15,000. Power requirements are 4.5 ma at +300VDC and -300 VDC, and .6 amp at 6.3 volts AC or DC (tube heaters). Input and output voltage range -50VDC to +50VDC. Input current is less than .1ua. Early ones had a case of brown bakelite, later ones had a grey plastic case. I can send you a data sheet. Regards, --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://www.best.com/~dcoward/analog =========================================

25 years

2
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[possibly OT]: Citizen 120D+ interface connector and Acorn System questions

by philpem＠bigfoot.com

On Thu, 11 Oct 2001 23:06:34 +0100 (BST) ard(a)p850ug1.demon.co.uk (Tony Duell) wrote: > > BTW, anyone got a schematic for the Acorn Teletext Video card for the Acorn > > System-series machines? > > Is this some kind of trick question? Yes, I have it, open in front of me. > Got most of the other System schematics as well... Would you mind scanning and uploading the Teletext Video Card schematics for me? Preferably in PNG or some other lossless format at +/-300DPI. Thanks. -- Phil. philpem(a)bigfoot.com http://www.philpem.f9.co.uk/

25 years

1
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Phonemark/Entrepo Quick Data Drive

by philpem＠bigfoot.com

Hi, My old Citizen 120D+ is back from the dead (thanks to some 0.71mm tinned copper wire and a bit of fiddling with my soldering iron) and I've got another query. A while ago I got a Phonemark "Quick Data Drive", aparrently made by Entrepo. It uses small endless-loop tape cartridges called "Wafers" (any relation to the Rotronics Wafadrive? hmm...). Without the Master QOS Wafer or the blank wafer that were supposed to come with it. Anyone care to tell me where I can get these tapes? Also, without the QOS wafer, I can't get my VIC-20 to work with it. Anyone want to hook a QDD up to a PC and transfer QOS to a T64 (tape) file for me? I've had the cover off, and it appears to use a small-ish black plastic mechanism with "BSR" printed on it. This mechanism looks (from the front) exactly like the ones on the Rotronics Wafadrive. Anyone know if Wafadrive cartridges will work with it? Anyone know where to get Wafadrive cartridges? I _know_ this thing will work on a VIC-20, but without the QOS wafer or a blank wafer I'm stuck. Is the tape inside these carts normal C-30 "Computer Tape"? Anyone care to sacrifice one and take pictures and measurements? A 2D CAD drawing of the tape would be nice (I can get good-quality C60s relatively easily, I just need to know how the wafers are assembled). Thanks again. -- Phil. philpem(a)bigfoot.com http://www.philpem.f9.co.uk/

25 years

1
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Moving in 12 days....

by technos＠nerdland.org

Unless you've got a stockpile of DEC and/or Atari you haven't shared, your number is safe with us. Jim On Friday, October 12, 2001 10:38 PM, Curt Vendel [SMTP:curt@atari-history.com] wrote: > Hi Sean, > > Wanted to update my information with you, I'm moving in my new house in 12 > days, here's my new info: > > Curt Vendel > 117 Duke Drive > Carmel, NY 10512 > (845)-225-9793 (voice) > (845)-225-9794 (Fax) > > > Curt

25 years

1
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SCSI pros & cons

by acme_ent＠bellsouth.net

> Glen Goodwin skrev: > > >Hmm -- my personal experience is that, unless the machine is already > >junked-up with a random assortment of TV and radio tuner cards, video > >accelerators, SoundBlasters and DVD decoders, SCSI is easily added to a > >motherboard with onboard IDE ports. I've personally built a few dozen of > >them, using both IDE and PCI SCSI controllers. > > >What sorts of problems are you encountering? Iggy Drougge replied: > You're welcome to try to sort out our pile of SCSI cards which so far haven't > worked in our OpenBSD machine. One machine, or many? If you have a pile of cards, one machine, and none of the cards work in that specific box, I'd suggest that there may be a fault in the box, or another device in there which conflicts with your SCSI cards. > We don't use PCI cards, though (we sold that > one, since we wouldn't use the SCSI for anything else than tapestreamers and > so forth). Besides, SCSI integration into PC systems is really clumsy. Wow - these days the BIOS setup utility on the cards allows a lot of flexibility and also provides information about the installed SCSI devices, making it easy to verify IDs, etc. A few years ago I was building 80MHz 486 systems using Rancho Technologies RT1000 8-bit SCSI cards which I got for about $8 each. The cards were shipped labeled "not Win95 compatible," but, not only did they work with Win95, I never saw a faulty card, or a system in which the RT1000 wouldn't work. (Okay, so they were *slow*) So, my SCSI experiences have been good. > and they don't behave like the IDE hard drives. Well, that's the point, right? ;>) > They > have their own little BIOSes and things which I'm not used to from other > systems. Those little BIOSes (the ones with a setup program) are a *big* advantage. Just today I was cursing the fact that the BIOS on the ATA-66 controller I was installing didn't have a setup program. It took me two hours to get all six IDE drives working properly. With a decent SCSI card it would have been 15 minutes, tops (barring any bad drives or cables). > In fact, non-PC systems tend to see IDE as a kind of bastard SCSI > instead. They may be onto something there . . . Glen 0/0

25 years

7
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Apple ][ disk controller state machine

by dhquebbeman＠theestopinalgroup.com

> Until I get my hands on a copy of the venerable "Beneath Apple Dos" > is there anyone who can point me to an online resource describing the > Apple ][ disk controller P6 ROM state machine? The exact uses > for the Q6 and Q7 switches ($C0EC-$C0EF)? Or would be willing to > summarize from the mighty tome for me? From: http://www.mac.linux-m68k.org/devel/iwm.php : ======================= : Accessing IWM Registers : ======================= : The IWM chip has several internal registers available to programs. : Access to these registers is controlled by the Q6 and Q7 switches. : : +=====+=====+=======================================+ : | Q6 | Q7 | Register | : +=====+=====+=======================================+ : | off | off | Read data register | : +-----+-----+---------------------------------------+ : | off | on | Read handshake register | : +-----+-----+---------------------------------------+ : | on | off | Read status register | : +-----+-----+---------------------------------------+ : | on | on | Write mode register (if drive is off) | : | | | data register (if drive is on) | : +-----+-----+---------------------------------------+ : : The mode register is a write-only register containing several flag bits : which control various features if the IWM. To access it, turn off the : drive (by accessing ENABLE), turn on Q6 and Q7, and write to any : odd-numbered address in the $C0E0...$C0EF range. hth, -dq

25 years

9
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Levco Macintosh Transputer on Ebay

by rmeenaks＠olf.com

Hi, Here is a link to a Levco Macintosh Transputer board on ebay. http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1284357549 I am not connected to this listing, just passing on the information. I have some information on this board if anyone is interested, but I do not have any drivers for it. If anyone has them, I'll be happy to host them on my website.... Cheers, Ram -- ,,,, /'^'\ ( o o ) -oOOO--(_)--OOOo------------------------------------- | Ram Meenakshisundaram | | Senior Software Engineer | | OpenLink Financial Inc | | .oooO Phone: (516) 227-6600 x267 | | ( ) Oooo. Email: rmeenaks(a)olf.com | ---\ (----( )-------------------------------------- \_) ) / (_/

25 years

3
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Sigma Designs OneReel Tape

by dhquebbeman＠theestopinalgroup.com

> >I'd like to hear more about this SCSI monitor - was it data over SCSI, or > >some kind of control thing, or what? > > It actually got all its data over SCSI. I suppose its main application was the > very oldest compact Macs which didn't even have any PDS slot. Forgot to mention... There were SCSI-interfaced Ethernet adapters for SCSI-equipped Macs... got one of those, too... -dq

25 years

3
3
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Free unknown keyboard

by Innfogra＠aol.com

The keyboard is for Data General Terminals, I recognize it. I could possibly help IDing the terminal if anyone is interested. I have no interest but maybe some of the DG people on the list do. Paxton Astoria, OR

25 years

1
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Free unknown keyboard

by mythtech＠Mac.com

Since I know people on this group like odd computer parts, I figured I would offer these here: I have 4 unknown keyboards available. They are tan and look like they might have come from some terminal system. They have a DB9 (DE9, ahh... D9) Male connector on it, and carry a part number 6246-A. No mention of who makes it, or what system they came from. I don't know if they work, I don't know anything about them at all. All 4 are rather dirty, and one of them is missing the key cap for what looks like two tildes and a backwards comma key. I recieved them as part of a ship test. (I work for a market research company, and one of the major shippers was doing a test with us, to see how the package made it thru shipping... so we recieved two shipments of 2 keyboards each... the shipper doesn't want them back) You can see a picture of one at <http://www.mythtech.net/keyboard.jpg>. I will hang onto them until monday, but after that, they are being dumpstered. If anyone wants them, they are up for grabs, they would be mailed out of 07450. A single keyboard weighs 6 lbs, figure add another pound for the box and bubble wrap to be safe. I can take PayPal to cover shipping costs, or they can be picked up in Ridgewood, NJ. -chris <http://www.mythtech.net>

25 years

1
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Looking for : IBM 5110 Serial IO adapter software`

by mythtech＠Mac.com

>> I am fairly sure it is vertical. I remember when it started to die, I did >> the Mac Plus analog board fix for it (whack it on the side), and that > >Err, the Mac+ fix I use here involves a TX15 torx driver and a soldering >iron. My Mac+ has a stable screen :-)... Yes, yes, that is the correct way to fix it (I have done many myself)... the "whack it" comment was a tongue in cheek remark, since at one point, that was actually an apple authorized temporary fix (until you got tired of it enough to bring it into a service shop and have the joint resoldered... since back in that day, you were supposed to open your own mac... although I ignored that starting with my 128k). At one point, I even found a tech note about doing it, although, they refered to it as "tapping forcefully". -chris <http://www.mythtech.net>

25 years

2
1
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Sigma Designs OneReel Tape

by dhquebbeman＠theestopinalgroup.com

> It actually got all its data over SCSI. I suppose its main application was the > very oldest compact Macs which didn't even have any PDS slot. The very oldest Macs didn't have SCSI ports... However, a company called Dove had a board that plugged into the ROM slots, and into which you then placed the ROMs, that provided a SCSI interface for the Mac 512k/512ke. They also had a memory board that had the way of interfacing to the main board... it had funny-looking sockets that "clamped" down on top of the existing DRAMs and which provided enough to bring a 128k Mac up to 512k or a 512k Mac up to 1MB. I still have both boards... -dq

25 years

1
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Philbrick?

by Robert_Feldman＠jdedwards.com

"In 1937-1938 George A. Philbrick developed what he called an "Automatic Control Analyzer." The analyzer was an electronic analog computer..." http://www.computer.org/annals/an1982/a2143abs.htm "Model K2-W computing opamp George A. Philbrick Researches This is a general purpose computing opamp. First introduced in 1952. " http://www.best.com/~dcoward/analog/ -----Original Message----- From: John Allain [mailto:allain@panix.com] Sent: Thursday, October 11, 2001 11:28 PM To: classiccmp(a)classiccmp.org Subject: Philbrick? While cleaning up some garage space (yes, so a Car could go in there) I came across a cache of some things I knew I had and one thing I forgot. A 2 tube module.from George A. Philbrick Researches Inc. It's a GAP/R K2-W with "computor" tubes in it. Before anybody vomits (as regards computor) could somebody remind me who Philbrick was? The name seems familliar. TIA John A.

25 years

1
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ArcNet and the Pursuit of Multiple Topologies

by dhquebbeman＠theestopinalgroup.com

> How come noone (not even I) has mentioned Apollo Tokenring? Or Prime's Ringnet ( a Cambridge ring )...? -dq

25 years

1
0
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ADA 1600 for Pet?

by mhstein＠usa.net

>Date: Wed, 10 Oct 2001 14:38:21 -0500 >From: Gary Hildebrand <ghldbrd(a)ccp.com> >Subject: Re: ADA 1600 for Pet? > >Joe wrote: >> >> I recently picked up a box called a "ADA 1600 Pet Printer Interface".ki >> It's a box slightly larger than a pack of cigarettes with two cables >> attached to it. One cable has a Centronics type connector on it and the >> other has a small circuit board with both a male and female 24 position >> card edge connectors on it. Is anyone familar with it or does anyone know >> which model PET it's for? >> >> Joe > >I think that's an IEEE (HP-IB) to centronics adapter box. I remember >the PETS were famous for that IEEE interface for both disk drives and >printers. The same philosophy continued into the VIC and C=64 lines, >but in a modified serial format. Typical Commodore, just enough >different to be a pain . . . . > >Gary Hildebrand > Tsk, tsk; I would have thought that the SCSI fans would have more appreciation for Commodore's IEEE488 GPIB implementation back in the 70's: less pain than some people on this list have had with SCSI, addressable daisy-chained peripherals, more expensive and less selection just like SCSI, and no problems with termination etc. :-). And they could (and indeed did) talk more or less directly to a lot of high-end lab equipment, especially HP's, although admittedly not quite at the 10Mbps rate of today... That is indeed what it is, Joe; if you actually want to use it, the DIP switch selects the unit address (usually 4 for a printer) and (if I remember correctly) the CR/LF and all-caps options. Still have a couple in fact, as well as a 1450 serial version; used one for many years to let my 8032 talk to my Centronics 101. mike

25 years

1
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AlphaServer 1000A & EISA Config

by bdwheele＠indiana.edu

It is slightly off topic, though I hadn't seen an eisa card for what seems like a decade :) In any case, I recently got a 2nd hand AlphaServer 1000A with no disks. I put an EISA SCSI card I dug up in the machine, but its wanting me to run the eisa configuration utility. After scouring the net, I found one that would come up, but only if I burned it onto a CD. Now its complaining that It can't find a configuration file for my system board. Grrr. I suppose I'm glad EISA is dead, but...it would be nice if I could get this silly SCSI card to work. Any thoughts/hints/suggestions? Brian Wheeler bdwheele(a)indiana.edu

25 years

2
1
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ArcNet and the Pursuit of Multiple Topologies

by optimus＠canit.se

George Currie skrev: >Any one ever use a network called KanNet (I think that's how it was spelled). > It was around in the mid 80's. The early ones I used actually utilized both >a host adapter and an external box (the network cabling attached via the >boxes). The boxes were large (say 12"x12"x3") and the topology was a ring >running on coax. How come noone (not even I) has mentioned Apollo Tokenring? [snipsnipsnipsnipsnipsnip] -- En ligne avec Thor 2.6a. "Computer games don't affect kids, I mean if Pac Man affected us as kids, we'd all be running around in darkened rooms, munching pills and listening to repetitive music." David McMinn

25 years

2
2
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Wang VS

by jdonogh1＠prodigy.net

Does anyone know where I might find a Stand Alone Utility (SAU) disk for a Wang VS5E? Or maybe some OS install disks, or a old hard disk from one? VS15 or VS25 would work also-same processor (CP5)

25 years

1
0
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2.88 MB floppy drive, scsi?

by mythtech＠Mac.com

>There >are those that dislike fooling with the SCSI 'voodoo' though. Once you get the dance steps down, and realize that you have to sacrifice a lamb, not a chicken... the SCSI gods stop causing problems. :-) -chris <http://www.mythtech.net>

25 years

6
7
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truck space potentially available

by mcguire＠neurotica.com

Hey folks. It is likely that I will be driving an empty 24' truck to the DC area from the Tampa, Florida area within the next week. It has a lift gate. I would like to defray the cost of the truck somewhat...If anyone needs anything hauled along the 75N->10E->95N route, please contact me off-list. -Dave -- Dave McGuire Laurel, MD

25 years

2
1
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ArcNet and the Pursuit of Multiple Topologies

by mcguire＠neurotica.com

On October 11, John Allain wrote: > > How come noone (not even I) has mentioned Apollo Tokenring? > > Maybe some of us have decided to get a life in the last month. > > > Banyan VINES? Isn't Vines a protocol, rather than a medium? What I mean is...can't you run Vines over ethernet/fddi/whatever? -Dave -- Dave McGuire Laurel, MD

25 years

1
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Looking for : IBM 5110 Serial IO adapter software`

by mythtech＠Mac.com

>_White_ line? All IBM5151 monitors that I've seen are green-screen (in >fact that's specified somewhere in the techref). Is this a genuine IBM >monitor? You know, it might be a bright green line. I haven't powered it up in years. The only reason I didn't pitch it is because it IS a genuine IBM monitor (the 5151), and I didn't want to seperate it from its PC... which I wanted to keep because it was the first "IBM PC". >Is the line vertical or horizontal. You imply the former, which is rare >(most horizontal deflection faults kill the EHT as well, leaving a dark >screen). If that is the case, there's only about 4 components that can be >at fault.... I am fairly sure it is vertical. I remember when it started to die, I did the Mac Plus analog board fix for it (whack it on the side), and that would bring it back for a bit. Finally it just stopped coming back, and stayed as a bright line. Humm... maybe in November I will pull it out and see if I can get it running. (I have too much work to do this month to get to the fun stuff). -chris <http://www.mythtech.net>

25 years

2
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IDing WYSE terminal

by mythtech＠Mac.com

>If it is a Wyse 60, then I have the schematic in front of me.... > >First question : [snip] ROFL... halfway reading thru all that, I suddenly had flashbacks of the briefing from "Hardware Wars" (attack the flip flop over ride...huh?... ya pull the plug!) I will take a look at it tomorrow and see what some tests turn up. -chris <http://www.mythtech.net>

25 years

1
0
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IDing WYSE terminal

by mythtech＠Mac.com

>If the daughtercard is indeed an RS422 interface, as someone >suggested, an ordinary RS232 or RS423 terminal will probably not work. Thanks to a link I found pointing to a reference page on wyse's web site, I have found out MUCH more info on this. Yes, the card is a RS422 card. Wyse even specifies that the ONLY company that it was made for was Isoetec, and they give the part number on it (and specify that replacements have to be bought thru isoetec). They do imply that it can be fitted on a standard wyse 60, but don't come right out and say that. > RS232 and 423 are single-ended interfaces, which means that each signal >consists of one wire plus a common ground connection. RS422 is a >differential system, where each signal has a positive and negative >connection. If your system is intended to connect to an RS422 terminal, >you'd need to do some hardware hacking to make it work. This suddenly makes all the sense in the world as to why my laptop can't connect to it. My laptop just has a standard RS232. I will probably have to try my Mac as it has an RS422 port on it. Otherwise, I am fairly sure I have a 422 serial card for a PC, I can always lug a whole PC to the site (it is at a different office, so hands on tests are hard to do... I make a list of things to try, and do them all in one visit) >Do you have any >information on the pinout of the interface? the Wyse link I came across has some info on it. IF I can track down the tech manual for the phone system, and IF it is like the manual I have to my 96 phone system, then it will have lots of tech info on pinouts... but so far I have been unsuccessful in finding a 66 techmanual :-( -chris <http://www.mythtech.net>

25 years

1
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[possibly OT]: Citizen 120D+ interface connector and Acorn System questions

by pjschilling＠gcstech.net

Philip, I have one shelved here it you want it for parts? Shipping only. Phil -----Original Message----- From: owner-classiccmp(a)classiccmp.org [mailto:owner-classiccmp@classiccmp.org]On Behalf Of Philip Pemberton Sent: Thursday, October 11, 2001 4:38 PM To: classiccmp(a)classiccmp.org Subject: [possibly OT]: Citizen 120D+ interface connector and Acorn System questions Hi, I've just dug out my old Citizen 120D+ 80-column dot-matrix printer, reseated the connectors, etc. and I've managed to break a few of the pins off the interface connector on the printer. I've bodged in a few bits of wire to get it running, but it's a bit temperamental. Anyone know what sort of connector Citizen used on this thing? I'm not talking about the Centronics connector, I'm talking about the one that connects up to the interface board. It looks like a two-row DIN41612 and has 15 pins per row (30 total pins). There is some text on it in black ink, but I don't know if it's relevant. It (the connector) has a 0.1" (2.54mm) pitch both vertically and horizontally. Anyone got a service manual for this almost-ten-year-old monster of a printer? I'd hate to throw it away for the sake of a knackered connector... BTW, anyone got a schematic for the Acorn Teletext Video card for the Acorn System-series machines? Thanks. -- Phil. philpem(a)bigfoot.com http://www.philpem.f9.co.uk/

25 years

1
0
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Looking for : IBM 5110 Serial IO adapter software

by mythtech＠Mac.com

>Also note that IBM PC used the same model number series. > >The 5110 and 5120 were both portables like the 5100, with added features. >We researched it before but I forgot what the 5130 is. The 5140 is the >IBM PC Convertible. And of course the 5150 is the PC, the 5160 is the XT, >the 5170 is the AT. Humm... I think I might have a 5150, 5160, and a 5170 around as well (actually, I KNOW I have a few 5170's left... but only two or three, the rest were dumpstered, or stripped for parts). I don't think my 5150 works, but it is an original "IBM PC" (I know the matching monochrome monitor for it is broken, just displays a bright white line down the middle). I would have to search and see if I have a 5160, or just XT clones (again, they might have all been dumpstered). Yup... sitting on the other side of my desk is a 5170, the case is open, and it is on its side, currently supporting the Wyse 60 terminal I was questioning (and making the 5170's video card bow pretty bad under the weight of the terminal). I know, some people might be cringing at my abuse of it... but the ATs are worthless to me (outside of the fact that you can stick a pentium baby AT logic board in it, and reuse the case and power supply... I think that is where most of my 5170's went) -chris <http://www.mythtech.net>

25 years

2
1
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[possibly OT]: Citizen 120D+ interface connector and Acorn System questions

by philpem＠bigfoot.com

Hi, I've just dug out my old Citizen 120D+ 80-column dot-matrix printer, reseated the connectors, etc. and I've managed to break a few of the pins off the interface connector on the printer. I've bodged in a few bits of wire to get it running, but it's a bit temperamental. Anyone know what sort of connector Citizen used on this thing? I'm not talking about the Centronics connector, I'm talking about the one that connects up to the interface board. It looks like a two-row DIN41612 and has 15 pins per row (30 total pins). There is some text on it in black ink, but I don't know if it's relevant. It (the connector) has a 0.1" (2.54mm) pitch both vertically and horizontally. Anyone got a service manual for this almost-ten-year-old monster of a printer? I'd hate to throw it away for the sake of a knackered connector... BTW, anyone got a schematic for the Acorn Teletext Video card for the Acorn System-series machines? Thanks. -- Phil. philpem(a)bigfoot.com http://www.philpem.f9.co.uk/

25 years

2
1
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IDing WYSE terminal

by mythtech＠Mac.com

>The Wyse does indeed look like a 60, but I think the 55 and 35 >look similar. Had it been a 50 or a 100, it would have been a >more obvious identification. I have a wyse 50 (I know it is, cause the case says so). I have tried it in place of this dead one, and it didn't work. I don't know how different each model is from one another, but maybe since the 50 didn't work, I can rule out a 55? >Can you get it into Setup mode? There may be a clue there... >it's something like Function-Setup, at least, it is on the 50... The unit powers up and beeps like it should, but the screen doesn't charge, so I can't see anything in the setup. -chris <http://www.mythtech.net>

25 years

2
1
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Research Machines Information

by Simon.Hardy＠hemel-hempstead.sema.slb.com

Tony, The machine powers up okay.....but the keyboard repeats (a bit like local echo). If I press a key, I get two of the same character on the screen. One appears when the key is pressed, and the other when it is released. Any ideas ? Rgds Simon -----Original Message----- From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk] Sent: 11 October 2001 00:25 To: classiccmp(a)classiccmp.org Subject: Re: Research Machines Information > > Hi, > > I am looking for any information or resources relating to the UK based > Research Machines 380Z and 480Z products. These were Z80 based micros, > mainly used in UK schools during the mid-eighties. I have both machines, and documentation on them. Including schematics for the 380Z (CPU, memory, text video, hi-res video, floppy controller) and the 480Z (machine only, but including the option board). > > I have a 480Z in my collection, but it isn't 100% operational and I really > need service information to enable me to track the faulty component.....Can I don't have the service manual, but I do have the hardware manual. It includes schematics. Alas my manual was mis-assembled by RML, so some pages are missing and others repeated, but the scheamtics _are_ all there and readable. What is the fault? -tony ___________________________________________________________________________ This email is confidential and intended solely for the use of the individual to whom it is addressed. Any views or opinions presented are solely those of the author and do not necessarily represent those of SchlumbergerSema. If you are not the intended recipient, be advised that you have received this email in error and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you have received this email in error please notify the SchlumbergerSema Helpdesk by telephone on +44 (0) 121 627 5600. ___________________________________________________________________________

25 years

2
1
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IDing WYSE terminal

by mythtech＠Mac.com

Thank you everyone for your help. It looks like from pictures I am able to find (or was sent links to) that it is indeed a Wyse 60. I think the tell tale part is the contrast slider on the front bottom right of the screen (and the matching ID plate on the left side). So now I am on the hunt for a cheap replacement (looks like ebay has them around $40), where I will open it, and see if the daughter card is installed, if not, I will transfer mine. I also have a lead on a wyse 60 emulator to keep on the back burner for when my replacement terminal dies too. Alas, I am still stuck on the Qume one, but at least I know what Qume it is, and that one isn't half as important to me, as I can interface with that phone system thru a programmers back door running an old copy of ProComm Plus, so if the terminal never gets replaced, the receptionist just has nothing cool to look at during the day. And the #1 thing I learned from all this... when taking digital pictures, don't put your $2000 DV Camcorder down on something without verifying that it is stable and won't tip over (I caught the camera mid fall thankfully... now I am out looking for the cheapest, crappy digital camera I can find, so I can return my good camcorder to its bag and use it only when shooting movies like it was intended) -chris <http://www.mythtech.net>

25 years

2
1
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IDing WYSE terminal

by mythtech＠Mac.com

>Post a digital pic on your webpage so we can look 'n' see? Ok... pics are up (sorry, no risque terminal pics). Go to <http://www.mythtech.net/terminal> There are two terms there. One is a Wyse something (maybe a 60 based on pics I just saw on ebay). The other is a Qume, that I am fairly certain is a Qume QVT-108 (seeing as that is silk screened on the main board). Both have some kind of a daughter card. Are the cards normal or are they some custom programmable thing to give the terminal special abilities for its used application. The Wyse terminal is from an Isoetec EZ-1/66 phone system. The Qume is >from an Isoetec EZ-1/96 system. If people can ID these, are there any recommendations as to where to get these terminals CHEAP (I saw some Wyse 60's on ebay for about $40, but I can't find any Qume QVT-108s). If terminals aren't available, does anyone have a recommendation of emulation software I can run. Thanks muchly -chris <http://www.mythtech.net>

25 years

6
7
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IDing WYSE terminal

by pete＠dunnington.u-net.com

On Oct 11, 10:41, Chris wrote: > >The Wyse does indeed look like a 60, but I think the 55 and 35 > >look similar. Had it been a 50 or a 100, it would have been a > >more obvious identification. > > I have a wyse 50 (I know it is, cause the case says so). I have tried it > in place of this dead one, and it didn't work. I don't know how different > each model is from one another, but maybe since the 50 didn't work, I can > rule out a 55? Probably not. If the daughtercard is indeed an RS422 interface, as someone suggested, an ordinary RS232 or RS423 terminal will probably not work. RS232 and 423 are single-ended interfaces, which means that each signal consists of one wire plus a common ground connection. RS422 is a differential system, where each signal has a positive and negative connection. If your system is intended to connect to an RS422 terminal, you'd need to do some hardware hacking to make it work. Do you have any information on the pinout of the interface? -- Pete Peter Turnbull Network Manager University of York

25 years

1
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2.88 MB floppy drive, scsi?

by pete＠dunnington.u-net.com

On Oct 10, 8:00, Russ Blakeman wrote: > It may be that they are hooked to a SCSI controller, many have floppy > controllers on the SCSI board. Only ones I've ever heard of, including the > PS/2 drives, are MFM like any other. > -> On Wednesday, October 10, 2001 4:46 AM, Mike Ford > -> [SMTP:mikeford@socal.rr.com] > -> wrote: > -> > I've been looking for some 2.88 non-IBM PS/2 floppy drives, and I found > -> > some, but the guy says they are SCSI. Is that nuts or what? > -> > > -> > TEAC FD-235 J 5670-U W/SCSI Card > -> > TEAC FD-235 J 5670-U W/SCSI Card > -> > TEAC FD-235 J 610 W/SCSI Card 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 :-) -- Pete Peter Turnbull Network Manager University of York

25 years

4
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Research Machines Information

by Antonio.Carlini＠riverstonenet.com

> HARDY, Simon wrote: > >Desperately seeking any 480z or 380z manuals or >other information, online, >original or photocopy. I have the 380Z manuals and I can (and will!) scan them at some stage - although I have a couple of weeks worth of stuff in the queue right now. Having said that, I'm not sure how much help the 380Z manuals will be if you have a 480Z. (I'm not saying they won't be useful ... just that the 380Z and 480Z look quite different to me!) Antonio

25 years

1
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Avoiding SCSI Problems

by dec.parts＠verizon.net

Jeff, I have a data file on SCSI that I'll try to access sometime soon that may help you avoid problems that can arise when integrating SCSI. I had a link to it, but so much time had passed, it didn't seem to be there anymore, but I had also downloaded and saved it, just not on this system and drive. Sincerely, Bennett > I agree, as any machine I spend any kind of time with > generally has it or has it added, whether Mac, PC, Amiga or whatever. > Even my laptop and PS/2 portable have SCSI adapters installed. There > are those that dislike fooling with the SCSI 'voodoo' though. It can > be a pain at times. > Jeff

25 years

3
3
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2.88 MB floppy drive, scsi?

by acme_ent＠bellsouth.net

> >What's the fuss about adding SCSI . . . In my world I consider that a > >necessity > > Then you haven't added it to PCs. =) > PS/2s which are built with SCSI in mind seem to behave well, but adding it to > IDE motherboards seldom works out for me. Hmm -- my personal experience is that, unless the machine is already junked-up with a random assortment of TV and radio tuner cards, video accelerators, SoundBlasters and DVD decoders, SCSI is easily added to a motherboard with onboard IDE ports. I've personally built a few dozen of them, using both IDE and PCI SCSI controllers. What sorts of problems are you encountering? Glen 0/0

25 years

2
1
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IDing WYSE terminal

by mythtech＠Mac.com

>Hi Chris. I don't think I said hello yet (I help run the list). Hello. >UNIX systems have a library of routines (collectively called "curses") >for sending commands to an idealized terminal, and a database format >(called "termcap", for "terminal capabilities") which contains entries >for various terminal types. Each entry describes the characters to send >to carry out the various commands on the actual terminal. And then there's >terminfo (another database format, more flexible than termcap, but in- >compatible). Makes sense. Sorry, my *nix is limited. I used an old AT&T unix machine many many years ago (running System V), but that was limited to "user" knowledge. I knew how to turn it on, and start up the software I needed to use. I have recently begun to play with linux, but havent had much time to really sit down and learn it (althought that will probably change, since I need to upgrade my web server, and Linux with Apache seems like a good option) >It would help you if you wanted to hook up your Wyse in place of another >brand of terminal, but what you want (I guess) is for another terminal -- >or computer -- to act like your Wyse. Correct. I need to connect something that the system will think is a Wyse 60. -chris <http://www.mythtech.net>

25 years

1
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Research Machines Information

by mythtech＠Mac.com

>the keyboard repeats (a bit like local >echo). If I press a key, I get two of the same character on the screen. One >appears when the key is pressed, and the other when it is released. I have seen this happen MANY MANY times with PC keyboards, so maybe my findings apply. In every instance that I have found it, it is beacuse someone spilled either soda or coffee into the keyboard, and the pads were sticking. The key would register when pressed, and then when released, the pad wouldn't pop up right away, instead it would "peel" up, and cause a 2nd (or sometimes a 3rd if it was sticky enough) registration. Opening the keyboard and washing with alcohol or contact cleaner has always fixed it for me. -chris <http://www.mythtech.net>

25 years

1
0
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2.88 MB floppy drive, scsi?

by mythtech＠Mac.com

>>> Solve your SCSI problems with one word, Granite. >> >> What do you mean by this? > >http://www.scsipro.com/ > >Granite Digital makes the best cables etc. If you use them most SCSI >weirdness will never effect you. ROFL... I was taking it to mean smash it with a big heavy rock. :-) -chris <http://www.mythtech.net>

25 years

1
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Avoiding SCSI Problems

by DAW＠yalepress3.unipress.yale.edu

Bennett --- Well if you can find the file, I (and I'm sure others) would like to read it... --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818 ! -----Original Message----- ! From: Jeff Hellige [mailto:jhellige@earthlink.net] ! Sent: Thursday, October 11, 2001 5:04 AM ! To: classiccmp(a)classiccmp.org ! Subject: Re: Avoiding SCSI Problems ! ! ! > I have a data file on SCSI that I'll try to access ! >sometime soon that may help you avoid problems that ! >can arise when integrating SCSI. I had a link to it, ! >but so much time had passed, it didn't seem to be there ! >anymore, but I had also downloaded and saved it, just ! >not on this system and drive. ! ! Actually, I don't have many problems myself, outside of the ! occasional questionable cable since I've gotten them from many ! different sources over the years and some are of better quality than ! others. I was just stating one of the reasons people state for ! avoiding using SCSI. Some implementations, such as that on the Amiga ! 3000, are quirkier than others though. ! ! Jeff ! -- ! Home of the TRS-80 Model 2000 FAQ File ! http://www.cchaven.com ! http://www.geocities.com/siliconvalley/lakes/6757 !

25 years

1
0
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Stable Temperature Shoes

by chunpai＠public.glptt.gx.cn

Dear sir/madm, We can supply stable temperature shoes. This is a sort of high-tech new products. This shoe was made used a sort of high-tech material not used any battery, it can intelligentize to keep stable temperature 30℃ in the shoe. If you are interest in this sort of high-tech warm shoes, please contact us ASAP. Also we supply multifarious other shoes, you can see them by clicking below: http://www.chunpai.com/first-english.htm Best regards. Mr. Long Tan ( Satrap ) ============================================================== GUILIN LINGUI SHENGPING XIAOXUE BAMBOO & WOOD MANUFACTORY ( LINGUI OFFICE OF GUILIN TEXTILES IMPORTS/EXPORTS CORP. ) Address: No. 229 Rongshan Road, Lingui, Guilin, Guangxi, China Tel: +86-773-5592687 Fax: +86-773-5592687 E-mail: chunpai(a)public.glptt.gx.cn Web Site: www.chunpai.com/first-english.htm Postalcode: 541100 --------------------------------------------------------------- 该邮件由《金锋邮件群发 2.0》发送，邮件内容与软件作者无关 --------------------------------------------------------------- 金锋软件，值得信赖的软件 http://www.jinfengnet.com

25 years

1
0
0 0

Stable Temperature Shoes

by chunpai＠public.glptt.gx.cn

Dear sir/madm, We can supply stable temperature shoes. This is a sort of high-tech new products. This shoe was made used a sort of high-tech material not used any battery, it can intelligentize to keep stable temperature 30℃ in the shoe. If you are interest in this sort of high-tech warm shoes, please contact us ASAP. Also we supply multifarious other shoes, you can see them by clicking below: http://www.chunpai.com/first-english.htm Best regards. Mr. Long Tan ( Satrap ) ============================================================== GUILIN LINGUI SHENGPING XIAOXUE BAMBOO & WOOD MANUFACTORY ( LINGUI OFFICE OF GUILIN TEXTILES IMPORTS/EXPORTS CORP. ) Address: No. 229 Rongshan Road, Lingui, Guilin, Guangxi, China Tel: +86-773-5592687 Fax: +86-773-5592687 E-mail: chunpai(a)public.glptt.gx.cn Web Site: www.chunpai.com/first-english.htm Postalcode: 541100 --------------------------------------------------------------- 该邮件由《金锋邮件群发 2.0》发送，邮件内容与软件作者无关 --------------------------------------------------------------- 金锋软件，值得信赖的软件 http://www.jinfengnet.com

25 years

1
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IDing WYSE terminal

by dhquebbeman＠theestopinalgroup.com

> On October 11, Iggy Drougge wrote: > > It seems that WYSEs are notorious for being frail. There is WYSE emulation > > software available, but at a cost. > > Interesting...I've had a few over the years, and have found them to > be nearly indestructible. Guess I got lucky! :-) Actually, my experience (with the steel-cabineted 100 and the plastic 50) has been like yours... they're rock-solid terminals, built to take a lot of punishment, which they tend to get in the places where they're used. Regards, -dq

25 years

1
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ArcNet and the Pursuit of Multiple Topologies

by dhquebbeman＠theestopinalgroup.com

> By the way -- how about DVD's via pneumatic tube? > Now THAT is a high-bandwidth medium. I can sell you > some pneumatic tube equipment too :) The newer plastic stuff, or the cool-looking old brass stuff? Up until about '87, there was a local metal scrap firm that still used the tubes, all brass, *very* cool. -dq

25 years

1
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IDing WYSE terminal

by dhquebbeman＠theestopinalgroup.com

> >Post a digital pic on your webpage so we can look 'n' see? > > Ok... pics are up (sorry, no risque terminal pics). > > Go to <http://www.mythtech.net/terminal> Ok... It's a Wyse 60, for sure... here's a link to some pics: http://www.quasaronlinestore.com/Merchant2/merchant.mv?Screen=CTGY&Store_Co… QSI&Category_Code=WT-R Watch out, that URL will probably get munged by Outlook... Regards, -dq

25 years

1
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IDing WYSE terminal

by mythtech＠Mac.com

>Linux has a wyse60 termcap entry, but that's not really what you want. Ok... I am feeling SOOO rank amature here. What is a termcap, and why would I not want it? (I must admit, it is refreshing to be in a group of people where I am probably the LEAST knowledgable) -chris <http://www.mythtech.net>

25 years

3
2
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IDing WYSE terminal

by dhquebbeman＠theestopinalgroup.com

> Ok... pics are up (sorry, no risque terminal pics). That's ok, my tastes run to hats, anyway... > Go to <http://www.mythtech.net/terminal> > > There are two terms there. One is a Wyse something (maybe a > 60 based on pics I just saw on ebay). The Wyse does indeed look like a 60, but I think the 55 and 35 look similar. Had it been a 50 or a 100, it would have been a more obvious identification. Can you get it into Setup mode? There may be a clue there... it's something like Function-Setup, at least, it is on the 50... -dq

25 years

1
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IDing WYSE terminal

by dhquebbeman＠theestopinalgroup.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? The Wyse 50 looks good in a fedora; the Wyse 100 prefers a beret... -dq

25 years

1
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Looking for : IBM 5110 Serial IO adapter software

by hansp＠aconit.org

We have an IBM 5110 with a serial adapter and have recently verified that the tape drive is operational. We are, however, missing the software cartridge for the serial adapter. Does anyone have a copy who would be willing to make a copy? We can supply a blank cartridge and pay shipping costs. -- HBP

25 years

1
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IDing WYSE terminal

by mythtech＠Mac.com

>It looks identical superficially to my WY60. Though yours is much whiter on >the picture. Mine is grey, much the same kind of grey as Atari STs. It is actually greyer than the picture makes it out to be. Not being familiar with the Atari you mention I can't say if it compares, but I would say it is a good shade darker than it looks. It is probably close to the "platinum" window background color of MacOS 8 and 9 (if that is something you are familiar with). It is also WELL used, and the receptionist is was in front of cleaned it daily with rubbing alcohol and lysol for about 10 years before I found out... I am sure that lightened the color quiet a bit (although, it could have been worse, it took me a while to track down why one booth's phone kept shorting out... till I caught one of the interviewers pouring water on top of it to clean it before they started their shift!). -chris <http://www.mythtech.net>

25 years

1
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IDing WYSE terminal

by mythtech＠Mac.com

> I believe the daughter cards are RS422 adapter cards. We have an >Executone phone system at work and it uses what appear to be standard Wyse >terminals (just like the pic), however they are modified for 422 in order >to handle the distances from the terminal to the switch. Can I safely put the daughtercard into a stock Wyse 60 and get the same functionality? What is the max distance for RS232? Are there any other real differences? The Wyse was stationed only about 50 feet (cable wise, crow flies about 8 feet thru a wall) from the KSU. Is that close enough that a stock RS232 based Wyse can reach? My Qume system is a different story, that is about 300 feet cable wise >from the KSU. (Although, it might be possible that the one in the Qume is fried, that terminal "works" it just doesn't pick up anything over the serial port... it stopped working when the phone pole in front of my building was struck by lighting, and due to poor grounding on the part of the phone company, half my phone system was fried, including the terminal... BUT... that gives me the idea of pulling the daughtercard from a 2nd one of the Qume's I have that has a bad powersupply... or was that a screen... humm, if it is a screen, maybe I can just mix and match and get one working) I would think the Executone terminal you have is fairly similar to the Isoetec I have. Executone bought Isoetec many moons ago, because Isoetec had better designs and systems. Most of the executone systems released after the buyout have been based off Isoetec designs/ideas. -chris <http://www.mythtech.net>

25 years

1
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ArcNet and the Pursuit of Multiple Topologies

by ajp166＠bellatlantic.net

Ah, you forgot the other transport, IP over morse code(cw). I believe RICM may have a copy of the document. Allison -----Original Message----- From: Iggy Drougge <optimus(a)canit.se> To: Derek Peschel <classiccmp(a)classiccmp.org> Date: Wednesday, October 10, 2001 10:36 AM Subject: Re: ArcNet and the Pursuit of Multiple Topologies >Derek Peschel skrev: > >>On Tue, Oct 09, 2001 at 11:29:12PM +0000, Pete Turnbull wrote: >>> >>> Nope. The RFC exists (RFC 1149) and there has been a practical >>> implementation. See http://www.blug.linux.no/rfc1149/ > >>For a moment I wondered if the Web site was set up using the same protocol >>(as a proof of concept?) but luckily it's just a normal Web site. :) > >Well, there should be high latency, but the packet sizes should be quite good. >=) > >-- >En ligne avec Thor 2.6a. > >Goto: A programming tool that exists to allow structured programmers to >complain about unstructured programmers. > >

25 years

2
1
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IDing WYSE terminal

by mcguire＠neurotica.com

On October 11, Iggy Drougge wrote: > It seems that WYSEs are notorious for being frail. There is WYSE emulation > software available, but at a cost. Interesting...I've had a few over the years, and have found them to be nearly indestructible. Guess I got lucky! :-) -Dave -- Dave McGuire Laurel, MD

25 years

1
0
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ArcNet and the Pursuit of Multiple Topologies

by brian＠quarterbyte.com

> I think you'll have trouble if you use anything other than 63 ohm coax... The cable is designated RG-62, but it's 93 ohm cable. Cards could be connected to an active hub or a passive hub. Passive hubs required 93-ohm terminators on the unused ports. But with an active hub you're all set. I have a couple of cables with BNC connectors, and I think a few left-over crimp-on connectors that you're welcome to have for the cost of shipping (or pick up in Berkeley, CA). Write to me offline. I got rid of a heap of arcnet stuff last year, alas. I think it's all at the Alameda County Computer Resource Center :) By the way -- how about DVD's via pneumatic tube? Now THAT is a high-bandwidth medium. I can sell you some pneumatic tube equipment too :) Brian

25 years

1
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ArcNet and the Pursuit of Multiple Topologies

by mcguire＠neurotica.com

On October 10, Mike Ford wrote: > What about the system that was used in large scale lab stuff, I am thinking > by Kinetic Systems and it linked instrument racks together that they called > Crates. They were all over the big physics labs. Hmm...CAMAC comes to mind? Memory fading... -Dave -- Dave McGuire Laurel, MD

25 years

2
1
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ADA 1600 for Pet?

by rigdonj＠intellistar.net

I recently picked up a box called a "ADA 1600 Pet Printer Interface". It's a box slightly larger than a pack of cigarettes with two cables attached to it. One cable has a Centronics type connector on it and the other has a small circuit board with both a male and female 24 position card edge connectors on it. Is anyone familar with it or does anyone know which model PET it's for? Joe

25 years

3
2
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Research Machines Information

by Simon.Hardy＠hemel-hempstead.sema.slb.com

Hi, I am looking for any information or resources relating to the UK based Research Machines 380Z and 480Z products. These were Z80 based micros, mainly used in UK schools during the mid-eighties. I have a 480Z in my collection, but it isn't 100% operational and I really need service information to enable me to track the faulty component.....Can anybody help with any information about these machines, so far all I have are a few collector/museum web sites.. Now I've asked my question, a little about myself. I am based in the UK and am interested in collecting 8 and 16 bit microcomputers from the late 1970s through to late 1980s. I have managed a reasonable collection of hardware and software and am in the process of cleaning/restoring the hardware and then preserving the software. Regards Simon Hardy ___________________________________________________________________________ This email is confidential and intended solely for the use of the individual to whom it is addressed. Any views or opinions presented are solely those of the author and do not necessarily represent those of SchlumbergerSema. If you are not the intended recipient, be advised that you have received this email in error and that any use, dissemination, forwarding, printing, or copying of this email is strictly prohibited. If you have received this email in error please notify the SchlumbergerSema Helpdesk by telephone on +44 (0) 121 627 5600. ___________________________________________________________________________

25 years

2
1
0 0

ZX Spectrum internals (Was: ZX81 kits)

by acme_ent＠bellsouth.net

> My primary moan is those serial ports on the QL. There are 2 of them, and > only one receiving cirucit. The Rx data lines from the 2 ports are > logically ORed together and fed to the receiver. You have to make sure > you external device obeys the handshake lines (no matter how slowly it > sends characters), something that some devices plain can't do. An > 'unbuffered' modem (i.e. just about any 300 baud modem) is a device that > has problems working with the QL. > > -tony A truly bogus design. Any idea why they did it that way? Glen 0/0

25 years

2
1
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slightly OT but may of interest to OS/2 users...

by SUPRDAVE＠aol.com

In a message dated 10/10/2001 9:31:42 AM Central Daylight Time, jhellige(a)earthlink.net writes: << Here's a Connectix press release from yesterday stating that they are working on an OS/2 version of Virtual PC so that OS/2 users could run both OS/2 and Windows on the same machine concurrently: >> Excellent! I'm glad to see that a real OS finally still gets recognition. Networking OS/2 to windows platforms at www.nothingtodo.org/easyos2.htm Time to send them a thankyou email...

25 years

2
1
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OT: Mark-8 repro kits

by KenzieM＠sympatico.ca

Has anyone here obtained one of these kits currently listed on ebay for $120. Are the parts readily available or will they have to be purchased with the kit? Are there any other kits being made? Collector of Vintage Computers (www.ncf.ca/~ba600)

25 years

1
0
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IDing WYSE terminal

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>

25 years

1
0
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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

25 years

3
3
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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

25 years

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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

25 years

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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>

25 years

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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

25 years

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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

25 years

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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

25 years

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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

25 years

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test-drb