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

RX50 / RX33 Questions related to PDP-11's

by pete＠dunnington.u-net.com

On Oct 14, 18:28, Zane H. Healy wrote: > Subject: RE: RX50 / RX33 Questions related to PDP-11's > >What exactly do your "RX33's" do when you try to access them? > > They flicker briefly just prior to the machine complaining it can't boot. > I'm not sure I had them connected properly. I'll try the method Allison > suggested in a little bit. That sounds suspiciously like what the controller does to "sniff" an RX50. There's a bit of majic between the side select and track zero signals on an RX50, which the controller uses to test that it's a real RX50. > Well, the stickers are pretty hard to read, but if I'm looking at the right > two, they both say > > LMB617 or LM8617 > then one says 21725 or 217E5 > I'm pretty sure the second says 216E5 That's 23-216E5 and 23-217E5, the first version of the RQDX3 code. The second revision is 23-244E5 and 23-245E5, which I think does support RX33s. The 23- means a ROM and the E5 means 16Kbytes (ie a 27128 EPROM). > If these aren't ROMs that support RX33's which ones should I be looking > for, there is a chance one of my other RQDX3's that I've got in my spares > will work. There was a third version, which was a minor bugfix, 23-285E5 and 23-286E5. I'm looking for a copy of those for my archive... -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by allisonp＠world.std.com

< I am almost sure you need a cable without the PC-twist. Also, you < probably need to set the drive select jumpers properly (Can somebody tel < us what to?). Remember that the PC-twist not only swaps over 2 of the < drive select lines, it also gives separate motor on signals for the 2 dr The "twist" cable only applies to PC or systems using PC patterned interfaces. It DOES NOT APPLY TO RQDX and distribution boards used in Qbus systems. RQDXn uses a single bussed motor on and drive selection by drive select jumper. If you use a RX33 drive try using only one for starters, that will lower the sillyness factor. If you media is RX50... why not use an RX50. If all else fails and your configuring a second system move the controller that works over to the target or move the target controller to the running system as a second drive/unit. Allison

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by dburrows＠netpath.net

RX33's use a straight cable without the PC twist. I have several here but use only one at a time on my test beds. I have several from various pieces of DEC equipment and they all use the drive select jumpers with a straight cable. Dan Burrows dburrows(a)netpath.net -----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, October 15, 1998 5:58 PM Subject: Re: RX50 / RX33 Questions related to PDP-11's > > >What exactly do your "RX33's" do when you try to access them? > > They flicker briefly just prior to the machine complaining it can't boot. > I'm not sure I had them connected properly. I'll try the method Allison > suggested in a little bit. Do the drive spindle motors ever run? You can't read data from a disk that's not spinning. I am almost sure you need a cable without the PC-twist. Also, you probably need to set the drive select jumpers properly (Can somebody tell us what to?). Remember that the PC-twist not only swaps over 2 of the drive select lines, it also gives separate motor on signals for the 2 drives. -tony

27 years, 9 months

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SWTP 6800 on Haggle

by paulk＠microsoft.com

There's a working SWTP 6800 machine on Haggle Online, complete with a doc set. Of course, since it's an Internet auction, he wants $1000 for it, but just in case someone's interested. http://www.haggle.com/cgi/getitem.cgi?id=201793143 Paul Kearns paulk(a)microsoft.com

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by CLASSICCMP＠trailing-edge.com

>I am almost sure you need a cable without the PC-twist. Absolutely correct. > Also, you >probably need to set the drive select jumpers properly (Can somebody tell >us what to?). There's absolutely no need to guess on this subject - Terry Kennedy has collected a great amount of wisdom and experience on this subject in THIRD-PARTY-DISKS.TXT, a compendium of DECUServe conferences, available by anonymous ftp from ftp.spc.edu. The answer for the drive select jumpers is easy: first drive at DS0, second at DS1. The jumpers selecting motor speed control are a bit more complicated; Terry's collection of data covers several popular Teac drives, and if the answer isn't there browsing through the Teac jumper setting recommendations will quickly give the answer for any specific drive they've sold. Teac's faxback service is at +1 213 727 7629, and is a valuable source of technical data regarding the various drives and options they've produced (and still produce.) Tim.

27 years, 9 months

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CNET Story (fwd)

by maxeskin＠hotmail.com

Is that a separate cable channel, or what (specify)? > > >The CNET producer who did the coverage of VCF 2.0 has sent me the >following: > >The piece on the festival is going to air this weekend on CNET Central. >Check out http://cnet.tv.com for airtimes... > >Sellam Alternate e-mail: dastar(a)verio.com >------------------------------------------------------------------------------- > > Coming in 1999: Vintage Computer Festival 3.0! > See http://www.vintage.org/vcf for details > [Last web page update: 09/28/98] > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 9 months

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PROM Burner

by Innfogra＠aol.com

I have a couple of 29s for sale, several plugs and a copy of the manual. if anyone is interested. Paxton

27 years, 9 months

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RL02 slides & brackets

by wanderer＠bos.nl

Hello All, Who can help me with a pair of RL01/RL02 slides and the 4 brackets? I want to mount my 3rd RL unit in the cabinet but don't have a 3rd pair of them. A payment can be discussed. Thanks, Ed -- The Wanderer | Geloof nooit een politicus! wanderer(a)bos.nl | Europarlementariers: http://www.bos.nl/homes/wanderer | zakkenvullers en dumpplaats voor Unix Lives! windows95 is rommel! | mislukte politici. '96 GSXR 1100R | See http://www.bos.nl/homes/wanderer/gates.html for a funny pic. of Gates!

27 years, 9 months

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CNET Story (fwd)

by siconic＠jasmine.psyber.com

The CNET producer who did the coverage of VCF 2.0 has sent me the following: The piece on the festival is going to air this weekend on CNET Central. Check out http://cnet.tv.com for airtimes... Sellam Alternate e-mail: dastar(a)verio.com ------------------------------------------------------------------------------- Coming in 1999: Vintage Computer Festival 3.0! See http://www.vintage.org/vcf for details [Last web page update: 09/28/98]

27 years, 9 months

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Franklin Ace 2100

by maxeskin＠hotmail.com

Better means any feature that would bias one towards one computer versus another. Did it include a z80, by any chance? On the back of this machine, there were some slot covers; did it take standard apple cards? > >I haven't tasted them yet ;) > > >I don't really know yet. I would believe that they added some features but >how would you define "better", more reliable, faster, bigger software >library? >All I can do is look at the specs and compare the two. > >Francois >------------------------------------------------------------- >Visit the desperately in need of update >Sanctuary at: http://www.pclink.com/fauradon > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 9 months

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Tandy Keyboard

by maxeskin＠hotmail.com

amazing amount of information on the Tandy site! They should be proud of themselves, considering someone was actually paid for typing this stuff up! > >Lawrence Walker wrote: > >> On 14 Oct 98 at 18:49, Max Eskin wrote: >> >> > Are these PC clones? I have seen a tandy (1000, I think) that had a >> > microphone port. Why was this? I have also seen a tandy which was >> > sort of like a C64 except it had a 3.5" disk drive. I'm _certain_ it >> > was a tandy. >> > >> They did run Dos and supposedly Gates wrote the OS for them. They were >> very similiar to the PC jr. and had a better resolution on the Tandy monitors >> than CGA. Can't remember the mike port but I seem to remember they did have >> a superior sound chip. TRS had a proprietory GUI (of sorts) called Deskmate >> that came with the sytem. The C64 type was likely a CoCo of which Murch is >> the resident expert. I believe he moderates the CoCo m-l .The CoCo 2 and 3 have >> an OS available called OS-9 which is IIRC quite impressive. > >The HX and EX were the 1000 versions that were low profile and were DOS, not OS/9 >machines. The HX had the 3.5" 720k floppy drive(s) in front and the EX had a 5.25" >360k drive on the right side. Both used a proprietary card slot known as a Plus >expansion and the cards (serial, hard disk and memory) are getting very hard to >come by anymore. > >Tandy has all the specs on the 1000 models on text files at >http://support.tandy.com/ > >Jason is correct on the keyboard plugs too. Later models went to a common keyboard, >older ones used a Tandy specific with a Tandy 1000 sticker on the back. The 2000 >used a similar looking keyboard but wired differently and had a 2000 label on the >back of it. > >THROWING the 1000's away?? You ought to b4e ashamed. <g> > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 9 months

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RL02 slides & brackets

by dburrows＠netpath.net

I have several here and you are welcome to a set for the shipping Plus a couple $ for boxing materials. Dan Burrows 336-376-0468 dburrows(a)netpath.net -----Original Message----- From: wanderer <wanderer(a)bos.nl> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, October 15, 1998 2:35 PM Subject: RL02 slides & brackets Hello All, Who can help me with a pair of RL01/RL02 slides and the 4 brackets? I want to mount my 3rd RL unit in the cabinet but don't have a 3rd pair of them. A payment can be discussed. Thanks, Ed -- The Wanderer | Geloof nooit een politicus! wanderer(a)bos.nl | Europarlementariers: http://www.bos.nl/homes/wanderer | zakkenvullers en dumpplaats voor Unix Lives! windows95 is rommel! | mislukte politici. '96 GSXR 1100R | See http://www.bos.nl/homes/wanderer/gates.html for a funny pic. of Gates!

27 years, 9 months

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Lisa software available

by Marion.Bates＠Dartmouth.EDU

IP changed. New address: 129.170.86.186 Lisa Office System software and LisaTest (ftp), and information (http). -- MB

27 years, 9 months

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A Commodore 'pre-computer'

by CLASSICCMP＠trailing-edge.com

>Ok, so it may not fit the 'computer' part of the charter, but it sure fits >the 'more than 10 years old' part... (and its borderline cute) >Just picked up a Commodore desk adding machine. I certainly think that any electronic computing machine is appropriate here. Three of my prized items in my collection: HP9100B desktop calculator HP9835 desktop calculator/BASIC computer Monroe/Litton 1101B desktop/deskside programmable calculator. Tim.

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by CLASSICCMP＠trailing-edge.com

>I'm using the RQDX3 controller as the floppy controller and the WQESD >(ESDI) controller as the boot device. When I tell the system to boot from >DUB0 or DUB1 which is the terminalogy that the WQESD controller expects >(figuring that out, i.e. reading the manual took longer than I want to >admit) with a RX50 attached, it will access the floppy drives, this is best >evidenced by my using a cleaning floppy in the drive (made it easy to hear >the drive being accessed). >When I try using a pair of Teac floppies I've converted to RX33's using >information I found on Sunsite I'm not really sure it tries to access them. Keep in mind that early RQDX3 revisions don't know how to talk to RX33's - they're limited to RX50 floppies. Seeing as how your system is apparently doing bizarre things with the RX33's, this might be the case. What exactly do your "RX33's" do when you try to access them? What firmware revision is your RQDX3? > Can you use RX50 floppies to boot a > system with RX33 drives? Yes. >Will RT-11 boot off of a floppy drive at CSR 17760334? I've tried with >both the Boot disk from my RX50 distribution set, and a RX50 boot disk that >I made using PUTR. I've a sinking feeling that having two disk controllers >is confusing RT-11. To get RT-11 to deal with two DU controllers, you can either: 1. Do a SYSGEN to create a DU handler that can handle more than one DU controller. With recent enough RT-11's, the same handler copes very nicely with multi-port booting. 2. COPY DU[X].SYS to another name (say, DG[X].SYS), and then SET DG:CSR=nnnnnn and SET DG:VECTOR=nnn, where nnnnnn is the CSR and nnn is an unused vector in your system. When you create a bootable floppy which you want to be bootable on your second controller, you must lay down the DG bootstrap instead of DU, since the DU device points to the wrong controller. The tradeoffs between the above two methods are documented in the RT-11 _System Generation Guide_ and the RT-11 _Device Handlers Manual_. Method #2 above is easily the quickest, and will probably do just fine for your purposes. (Though a RT-11 system with extended-unit multiport DU handler is a beautiful sight!) >Is it possible to create a Bootable TK50 with RT-11 that can be used to do >the install? Look for the file MUB.COM on your distribution: ! COPYRIGHT 1989, 1990 BY DIGITAL EQUIPMENT CORPORATION ! ALL RIGHTS RESERVED ! ! MUB.COM command file used to build binary kits Again, it will depend on which version of RT-11 you're running whether MUB.COM is MU-bootability is present. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology Voice: 301-767-5917 7328 Bradley Blvd Fax: 301-767-5927 Bethesda, MD, USA 20817

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by IVIE＠cc.usu.edu

> DU device became available with RT V5.0. It supported RQDX1. I > think that RQDX2 was supported with V5.1 (though it may have been > latently supported with V5.0). I had to trade back some RQDX2s for RQDX1s on some PDP-11/73s I delivered to the gummint because RT-11 didn't support them. I don't recall which version we were using; it would have been at least 5.0. I remember grumbling about how fancy (read "bloated") RT-11 was getting, but I don't recall doing _that_ until 5.2; I thought it happened during the 11/73 incident, though. I also don't remember why I thought 5.2 was bloated (it may have been the UCL/UCF stuff, which I thought was unnecessary), but I did stash away a 5.0 distribution kit as a hedge against bloatation. Roger Ivie ivie(a)cc.usu.edu

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by CLASSICCMP＠trailing-edge.com

> I had to trade back some RQDX2s for RQDX1s on some PDP-11/73s I delivered > to the gummint because RT-11 didn't support them. I don't recall which > version we were using; it would have been at least 5.0. I remember > grumbling about how fancy (read "bloated") RT-11 was getting, but I don't > recall doing _that_ until 5.2; I thought it happened during the 11/73 > incident, though. I also don't remember why I thought 5.2 was bloated > (it may have been the UCL/UCF stuff, which I thought was unnecessary), Yes, the UCL stuff is unnecessary, which is why if you don't want it you simply answer SYSGEN question 100 with "NO": 100. Do you want the user command linkage (Y)? $ USER COMMAND LINKAGE OPTION: The user command linkage allows you to define your own commands which can be issued in a format similar to the standard DCL commands. 100. Do you want the user command linkage (Y)? NO > but I did stash away a 5.0 distribution kit as a hedge against bloatation. An even better hedge against bloatation is to get RT-11 5.6 or later and learn how to use SET RUN VBGEXE. No matter how big the monitors and drivers grow, by appropriately setting a .SAV image's VBGEXE bits you can give it access to "all" 56kbytes of virtual memory space. If you want direct access to I/O space, you can turn that on too, or you can also elect to have 64kbytes of virtual memory space available to your process if you don't need direct access to I/O space. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology Voice: 301-767-5917 7328 Bradley Blvd Fax: 301-767-5927 Bethesda, MD, USA 20817

27 years, 9 months

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old CDS modem

by lfb107＠psu.edu

Found an old modem that I forgot I owned and was just wondering a few things. First, it's a Concord Data Systems 224 ARQ/Autodial that I now remember was in tow by a 3B2 I picked up a while ago. Anyway, it's rather heavy (humongous hat sink on back) so i opened it up and began to think that the innards seemed a bit complicated for a 'modem.' OK, I'll admit it, I was 11 years old when these things would have been in use, but I have other modems from the peiod ('85-'86) that aren't nearly as complex. It's about the size of a large book and has three levels of circuit boards with a Z80 CPU, an SIO chip, and memory chips (one says "zeropower (tm) ram" on it and "DO NOT DISPOSE OF IN FIRE!!!!") on one level, Intel 8031 series chips on another and who knows what on the bottom (haven't taken it all apart yet). Not to mention the 32 dip switches (all off) and the 23 led's on the front. To make a long story short, what did/does this thing do that a regular modem of the time didn't do? Thanks, les

27 years, 9 months

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PROM Burner

by allisonp＠world.std.com

< I had hoped to be able to use it to back up older ROMs which my circa 19 < EPROM programmer can't handle. Is it usable for this? It is the programmer of the era and with the right adaptors will program most anything including some faily current devices. The data io model 22 was faily close but newer and info on that will help with the serial port operation. < It has a serial type connector but no software (it predates the PC). The < is an LED and a hexadecimal keyboard. It looks like it was meant to be u < manually !! Typing stuff in character by character. The serial port acan be used that way but with the right terminal program and intel hex or Moto hex files you could up/download prom data. Allison

27 years, 9 months

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Franklin Ace 2100

by fauradon＠pclink.com

>Is there any way in which they are better than Apple //e? I know the >Laser 128 has some specific improvements. I haven't tasted them yet ;) I don't really know yet. I would believe that they added some features but how would you define "better", more reliable, faster, bigger software library? All I can do is look at the specs and compare the two. Francois ------------------------------------------------------------- Visit the desperately in need of update Sanctuary at: http://www.pclink.com/fauradon

27 years, 9 months

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A Commodore 'pre-computer'

by jimw＠agora.rdrop.com

Ok, so it may not fit the 'computer' part of the charter, but it sure fits the 'more than 10 years old' part... (and its borderline cute) Just picked up a Commodore desk adding machine. Its clean, fully functional (all 3 functions... ummm... 3? maybe 2.5 since 'multiply' is manually assisted), brightly colored Commodore tag and icon on the front. I'll be adding a picture on my web pages of it along with my next set of updates, and (hopefully) my pictures from VCF II. (RSN) -jim --- jimw(a)agora.rdrop.com The Computer Garage - http://www.rdrop.com/~jimw Computer Garage Fax - (503) 646-0174

27 years, 9 months

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MITS Altair 8800BT Computer (RARE!!!)

by altair8800＠hotmail.com

The same seller has listed Altair toggle switches with a $10 minimum bid. Jim, do those appear to be exactly like the switches you sell? Or do they differ from your's? Here is the link to the auction with the photo... http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=35724070 Bob Wood ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 9 months

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Tandy Keyboard

by roblwill＠usaor.net

Yep. They're PC/XT clones. The Tandy 1000TL's had the microphone port. They had a built-in "Tandy Sound Chip". It put out better sound (in Tandy 1000-supported games) that the standard PC-speaker setting. Haven't gotten the mic to work yet, though. I wish I could find a driver that would run the chip through Windows... I have seen the type that looks like a C64 (can't remember if it was a 1000 or not. They did make the CoCo series, but they didn't have the disk drives. If anyone has one of the 1000's (?) with the built-in drive (and keyboard), and you want to sell it, send me an email, because I'm probably interested. -- -Jason (roblwill(a)usaor.net) ICQ#-1730318 ---------- > From: Max Eskin <maxeskin(a)hotmail.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Tandy Keyboard > Date: Wednesday, October 14, 1998 9:49 PM > > Are these PC clones? I have seen a tandy (1000, I think) that had a > microphone port. Why was this? I have also seen a tandy which was > sort of like a C64 except it had a 3.5" disk drive. I'm _certain_ it > was a tandy. >

27 years, 9 months

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Tandy Keyboard

by roblwill＠usaor.net

If the plug on the RL has a DIN plug with (8?) pins (one in center), then the keyboard from the SX or TX will work. If it's a standard 5-pin DIN, then just use an XT keyboard. -- -Jason (roblwill(a)usaor.net) ICQ#-1730318 ---------- > From: Eileen Backofen <backofene(a)hotmail.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Tandy Keyboard > Date: Wednesday, October 14, 1998 8:56 PM > > We've been throwing out all our Tandy stuff at school. I've seen TLs, > TXs, SXs and even an HL. But I don't remember an RL. Will the others > work? > > Eileen > > > > > > >Greetings > > > >I was given a Tandy 1000RL, I need a old Tandy keyboard as nothing else > will > >work with this machine. Anybody have one laying around // > > > > > >Gary > > > > > > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com

27 years, 9 months

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Franklin Ace 2100

by maxeskin＠hotmail.com

Is there any way in which they are better than Apple //e? I know the Laser 128 has some specific improvements. >They are Apple IIe and IIc compatibles with 128K RAM,80 Column video, Double >High Resolution Display (560 x 192) of the IIc. >They use the 65SC02. >The diskettes drives are 40 track and 35 track compatible >The ACE 2000 has no disk drive, the 2100 has one and the 2200 has two (my >2100 has two, must be an upgrade) >I think my 2100 also has the etended memory card that brings it up to 384K. > >Francois >------------------------------------------------------------- >Visit the desperately in need of update >Sanctuary at: http://www.pclink.com/fauradon > > >> >>Does anyone know about this thing? It's a black machine, looks like >>a PC clone. I gather this is an Apple ][-compatible? >> >>______________________________________________________ >>Get Your Private, Free Email at http://www.hotmail.com >> > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by mbg＠world.std.com

>When I try using a pair of Teac floppies I've converted to RX33's using >information I found on Sunsite I'm not really sure it tries to access >them. How do you cable RX33's? I set them to Drive 0 and 1, as the docs >said, and then used a Y-splitter for the power with a standard PC floppy >cable (do I need one without the twist?). Can you use RX50 floppies to >boot a system with RX33 drives? Yes. In fact, the RT-11 distribution on 5.25" floppies is RX50 compatible, which also works on RX33. If the disk is formatted by an RX33, then it will only work on an RX33, though (at least when using the RT-11 FORMAT command). >Will RT-11 boot off of a floppy drive at CSR 17760334? I've tried with >both the Boot disk from my RX50 distribution set, and a RX50 boot disk >that I made using PUTR. I've a sinking feeling that having two disk >controllers is confusing RT-11. Since you're using the distribution kit, the answer is no. The address which the distribution handler (a single-port handler) expects is the primary address, 17772150. Even if you were able to get the boot code to read the boot block into memory, the first time the driver gets control, it will try the default primary address and fail. >Is it possible to create a Bootable TK50 with RT-11 that can be used to >do the install? Even when I worked in the RT development group, I avoided the attempt at making bootable magtapes... But the answer is, yes... you could make a bootable magtape (TK50). But you need to boot an RT system to do so, so we're back to a chicken and egg problem... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by mbg＠world.std.com

>To get RT-11 to deal with two DU controllers, you can either: > >2. COPY DU[X].SYS to another name (say, DG[X].SYS), and then SET > DG:CSR=nnnnnn and SET DG:VECTOR=nnn, where nnnnnn is the CSR and nnn > is an unused vector in your system. When you create a bootable > floppy which you want to be bootable on your second controller, you > must lay down the DG bootstrap instead of DU, since the DU device > points to the wrong controller. The problem with this technique is that the handler name is built into the driver, which is used by XM to locate the extended memory region used to store data (and other code), and the two handlers would still have the same name. You would need to SIPP the new handler and search for all references to the name 'DU' (search for ;rDU) to 'DG' (;rDG). Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by healyzh＠ix.netcom.com

OK, I've got some more questions. It seems I've finally got the PDP-11/73 I'm working on to talk to the floppy drives. BUT, it won't boot my RT-11 RX-50 floppies. I'm using the RQDX3 controller as the floppy controller and the WQESD (ESDI) controller as the boot device. When I tell the system to boot from DUB0 or DUB1 which is the terminalogy that the WQESD controller expects (figuring that out, i.e. reading the manual took longer than I want to admit) with a RX50 attached, it will access the floppy drives, this is best evidenced by my using a cleaning floppy in the drive (made it easy to hear the drive being accessed). When I try using a pair of Teac floppies I've converted to RX33's using information I found on Sunsite I'm not really sure it tries to access them. How do you cable RX33's? I set them to Drive 0 and 1, as the docs said, and then used a Y-splitter for the power with a standard PC floppy cable (do I need one without the twist?). Can you use RX50 floppies to boot a system with RX33 drives? Will RT-11 boot off of a floppy drive at CSR 17760334? I've tried with both the Boot disk from my RX50 distribution set, and a RX50 boot disk that I made using PUTR. I've a sinking feeling that having two disk controllers is confusing RT-11. Is it possible to create a Bootable TK50 with RT-11 that can be used to do the install? Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.dragonfire.net/~healyzh/ |

27 years, 9 months

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Tandy Keyboard

by backofene＠hotmail.com

We've been throwing out all our Tandy stuff at school. I've seen TLs, TXs, SXs and even an HL. But I don't remember an RL. Will the others work? Eileen > >Greetings > >I was given a Tandy 1000RL, I need a old Tandy keyboard as nothing else will >work with this machine. Anybody have one laying around // > > >Gary > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 9 months

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Franklin Ace 2100

by fauradon＠pclink.com

They are Apple IIe and IIc compatibles with 128K RAM,80 Column video, Double High Resolution Display (560 x 192) of the IIc. They use the 65SC02. The diskettes drives are 40 track and 35 track compatible The ACE 2000 has no disk drive, the 2100 has one and the 2200 has two (my 2100 has two, must be an upgrade) I think my 2100 also has the etended memory card that brings it up to 384K. Francois ------------------------------------------------------------- Visit the desperately in need of update Sanctuary at: http://www.pclink.com/fauradon > >Does anyone know about this thing? It's a black machine, looks like >a PC clone. I gather this is an Apple ][-compatible? > >______________________________________________________ >Get Your Private, Free Email at http://www.hotmail.com >

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by mbg＠world.std.com

allisonp(a)world.std.com (Allison J Parent) Wrote: >17772150 it the default first device and the default bootable. If there >is two the second will be at 17760334. For RQDXs the LUN jumper must >corospond to how many units. Right... but default secondary device for a DU handler is 17772144. (The reason for this is because back when the driver was developed, someone decided that since the vector was programmable, and the default was at 154, and nothing was at 150, that subsequent vectors would decrease by 4. This was then extended to the CSR... It wasn't until later that we found that the default secondary CSR was to be at 17760334. It never got changed. I think it is still that way for the to-be-released V5.7) >I believe PDP-11 ROM BOOT expects to boot from the default first (*2150) >unless the DU.sys driver has been changed for the second address. RT-11 >itself will boot/run on anything you have a driver for. Megan would >know for sure. I've never found it necessary to have two MSCP disk >controllers in a PDP-11 (I was using them in the vax instead!). So long as the address/vector match what is set in the device handler, it should boot. (I have a system at home with three, and at times four, MSCP adapters for various disk types -- MSCP, SCSI, ESDI, DSSI) Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

27 years, 9 months

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IBM 5120 at the local thrift store

by allisonp＠world.std.com

< > Are you suggesting that IBM has produced over 10,000 different compute < > models? I doubt it! < < Maybe not 10,000, but certainly lots. Don't forget that the numbers cove < not only computers, but accessories, ATMs, cash registers, lab equipment < clocks, racks, typewriters, and other stuff. Either ways it's not an issue ans the numbering system is more than 4 digits. For example my 8550-031 (ps/2m50z) being differnt from the 8550-021 (PS/2m50). How else would they differentiate models in a family of products. Allison

27 years, 9 months

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Tandy Keyboard

by k7ox＠pipeline.com

Greetings I was given a Tandy 1000RL, I need a old Tandy keyboard as nothing else will work with this machine. Anybody have one laying around // Gary

27 years, 9 months

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Picture up (RE: Microsci HAVAC)

by roblwill＠usaor.net

I can't check for a model number, because I no longer have the drive. I do remember that it was all black, had a Disk II - type face (with the non-wheel head motor), and that it said "Apple" and had a red apple (not multicolored) on the front. ---------- > From: CLASSICCMP(a)trailing-edge.com > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Picture up (RE: Microsci HAVAC) > Date: Wednesday, October 14, 1998 9:53 AM > > The situation is complicated by the large number of "Disk ][ clones" > that were produced in the early 80's. From personal experience and > advertisements, I'd say there were at least 30 different clones at the > time. Most of them used very different-looking, often half-height, 5.25" > drives, but many used the same drive mechanics as a real Disk ][ and > had case designs almost exactly like a real Disk ]['s. The only real > way to tell in this case whether you're dealing with a clone or not > is to look for an Apple sticker on the box and/or the Apple legend on > the drive's PC board. (While some of the clone makers also stole > Apple's PC board layout, I've never seen any that went so far as to > steal Apple's copyright and part number!) > > Tim.

27 years, 9 months

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Franklin Ace 2100

by maxeskin＠hotmail.com

Does anyone know about this thing? It's a black machine, looks like a PC clone. I gather this is an Apple ][-compatible? ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

27 years, 9 months

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HTML

by dcoward＠pressstart.com

Matt Pritchard said: Date: Tue, 13 Oct 1998 14:41:04 -0500 From: Matt Pritchard To: "'classiccmp(a)u.washington.edu'" Subject: RE: Commodore "PET 2001-8" Vintage Computer Message-ID: MIME-Version: 1.0 Content-Type: text/plain Am I the only person who can't read messages made up of tons of HTML junk? -Matt Pritchard Graphics Engine and Optimization Specialist MS Age of Empires & Age of Empires ][ > -----Original Message----- > From: Marvin [SMTP:marvin@rain.org] > Sent: Tuesday, October 13, 1998 12:55 PM > To: Discussion re-collecting of classic computers > Subject: Commodore "PET 2001-8" Vintage Computer > > This message uses a character set that is not supported by the Internet > Service. To view the original message content, open the attached > message. If the text doesn't display correctly, save the attachment to > disk, and then open it using a viewer that can display the original > Yes, it turned the rest of the Digest into a solid block of text. I just gave up on trying to read it. ========================================= Doug Coward Press Start Inc. Sunnyvale,CA =========================================

27 years, 9 months

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Fwd: antique arcade machines

by heavy＠ctesc.net

This doesn't say if they are antique computer arcade machines, but I thought someone might be interested, here. -Jim Weiler >>From owner-auctions(a)web0.netis.com Wed Oct 14 14:13:18 1998 >X-Authentication-Warning: web0.netis.com: majordomo set sender to >owner-auctions(a)maillist.netis.com using -f >From: don_shearer(a)wda.disney.com >Date: Wed, 14 Oct 1998 10:07:17 -0400 >To: <auctions(a)auctionweb.com> >Subject: antique arcade machines >MIME-Version: 1.0 >Sender: owner-auctions(a)web0.netis.com >Precedence: bulk >Status: U > > We have a small collection (13 items) of antique arcade machines for > disposal. They are in an average condition (some operatable, some > not). Do you know of anyone who may be interested in purchasing these > items? > >. >. >>----------------------------------------------------------------< >> NETIS Auctions On the Web ... Largest and Most Active Auctions < >> and Auctioneers Listing Service on the Internet. < >>----------------------------------------------------------------< >> Join us on the World Wide Web at http://www.auctionweb.com. < >> KEYWORD SEARCH, Worldwide, using http://www.auctionseek.com. < >>----------------------------------------------------------------< >> To subscribe/unsubscribe to/from our auctions mailing list, < >> send mail to majordomo(a)auctionweb.com with "subscribe < >> auctions" or "unsubscribe auctions" (no quotes) in the body < >>----------------------------------------------------------------< > ( } /|> ___( (@} } |> / |\ ____ (@} } / /| / | \ ____ ( } / - - / | / | \ (oo} / - - / | / | \ ___ ( O-------------------- / | / | \ ____ (______} \ - - - /----| /------|_____\ \ - \____|_@|@@@@\___|______\__/ "Poco Sol" |\_____________________/ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ mailto:YaCCCht@hosts.talkcity.com * Jim Weiler * mailto:heavy@ctesc.net http://pages.tstar.net/~heavy/ http://home.talkcity.com/HardDiskDr/yacccht/index.html ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

27 years, 9 months

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comador 128

by TKorotko＠aol.com

I read that you have some that may use old computers. I have 3 of them 1 128 commador and two 64 with about 200 programs and game and a lot of blank disks. hat to just throw out on garbage if you know some one that could use them, trouble is the would have to pick them up at 101 old lanes mill rd. brick nj 08724 7324581582 as I'm 81 and do not drive too much

27 years, 9 months

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Wyse PCs (was Re: auction grabs)

by Innfogra＠aol.com

In a message dated 98-10-13 20:40:07 EDT, you write: << he few ISA cards was a 16-bit double card with a 9 pin external plug labelled Wyse monitor. There's 2 badly mounted Wyse E-Proms. Printed on the bottom of the top board was WY-700 Controller Daughterboard. Wyse Technology (c) 1986. The bottom one has WY-700 PC HI RES MOTHER BOARD. Sounds like your beast. If I should find one of these monitors would it work on a clone with just this card ? T >> Yes if you plug the card in and plug the matching 700 monitor in it will come up. The card emulates EGA & CGA. In its high res mode it is a nice sharp 1200X800 (approx.) monitor. It was supported by many early desktop publishing software packages in it's high res mode. The original card & monitor set predated VGA and was an 8 bit double card. I used one on an XT for several years. SVGA finally killed them off. I think I still have that XT. I know I have two of the monitors in my whse, If I don't sell them beforehand they will be in my Auction in early November. I am retireing from supporting a warehouse so most everthing is selling. This will include lots of older computers, parts, terminals, printers and lots of collectable stuff. Paxton

27 years, 9 months

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Fairchild Channel F units

by fauradon＠pclink.com

For those interested the is a Faichild Channel F faq at http://www.best.com/~cdyer/faqs/fairv2.htm Francois ------------------------------------------------------------- Visit the desperately in need of update Sanctuary at: http://www.pclink.com/fauradon

27 years, 9 months

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Picture up (RE: Microsci HAVAC)

by CLASSICCMP＠trailing-edge.com

>> I noticed that ( I looked a 3 Disk II's that my school had, and they all >> had the grooved disc). I don't have the drive anymore (never was able to >> get it to work), but All I really remember is the round cable, the red >> apple (it was unusual), and the Disk II-type black front. If I remember >> correctly, the case was black, too. I don't remember a data cable (at >AH HA! I was just going to suggest that perhaps you had a Bell & Howell >drive and perhaps the internal mechanism on that model was different. I >think Kai has some black Disk ]['s handy that he can perhaps check on for >us. The situation is complicated by the large number of "Disk ][ clones" that were produced in the early 80's. From personal experience and advertisements, I'd say there were at least 30 different clones at the time. Most of them used very different-looking, often half-height, 5.25" drives, but many used the same drive mechanics as a real Disk ][ and had case designs almost exactly like a real Disk ]['s. The only real way to tell in this case whether you're dealing with a clone or not is to look for an Apple sticker on the box and/or the Apple legend on the drive's PC board. (While some of the clone makers also stole Apple's PC board layout, I've never seen any that went so far as to steal Apple's copyright and part number!) Tim.

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by CLASSICCMP＠trailing-edge.com

> At this point, if you don't have >a floppy in the RX50, the DEC BOOT ROMS will hard boot >an alternate CSR for UNIT 0, PARTITION 0. The situation depends greatly on *which* version of the DEC boot ROM's are in use. Some automatically search for an alternate CSR, some allow you to specify it explicitly. The situation is complicated by the fact that for most DEC OS's, the alternate DU CSR is 160334, while for RT-11, SYSGEN will certainly suggest something very different for the default: > 230. What is the CSR (register) address for the second port (172144)? While most DEC DU bootstraps "sniff" through 172144, not all do. Luckily, we don't have to argue about the situation, as Zane told us which bootstrap he is using: >When I tell the system to boot from >DUB0 or DUB1 which is the terminalogy that the WQESD controller expects So any discussion of DEC bootstrap revisions seems to be quite irrelevant :-) For many purposes, I much prefer the WQESD boot scheme. It avoids all the confusion caused by the many, many different DEC DU bootstraps! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology Voice: 301-767-5917 7328 Bradley Blvd Fax: 301-767-5927 Bethesda, MD, USA 20817

27 years, 9 months

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RX50 / RX33 Questions related to PDP-11's

by allisonp＠world.std.com

< admit) with a RX50 attached, it will access the floppy drives, this is b < evidenced by my using a cleaning floppy in the drive (made it easy to he < the drive being accessed). RX50s are rather loud. ;) < When I try using a pair of Teac floppies I've converted to RX33's using < information I found on Sunsite I'm not really sure it tries to access th < How do you cable RX33's? I set them to Drive 0 and 1, as the docs said < and then used a Y-splitter for the power with a standard PC floppy cabl < (do I need one without the twist?). Can you use RX50 floppies to boot < system with RX33 drives? Ok, TEAC FD55GFV (RX33) or TEAC FD55F (RX50). The cable must not have twist and drive select is 1 for the first, I only use one on the system as I have 3 RD52s. IF the drive speed select and density select jumpers are set right it (using RQDX3) will sense what the media is and operate correctly using the DU boot. None or all of this will be true for the WQESD controller, I don't know it. < Will RT-11 boot off of a floppy drive at CSR 17760334? I've tried with < both the Boot disk from my RX50 distribution set, and a RX50 boot disk t < I made using PUTR. I've a sinking feeling that having two disk controll < is confusing RT-11. 17772150 it the default first device and the default bootable. If there is two the second will be at 17760334. For RQDXs the LUN jumper must corospond to how many units. I believe PDP-11 ROM BOOT expects to boot from the default first (*2150) unless the DU.sys driver has been changed for the second address. RT-11 itself will boot/run on anything you have a driver for. Megan would know for sure. I've never found it necessary to have two MSCP disk controllers in a PDP-11 (I was using them in the vax instead!). < Is it possible to create a Bootable TK50 with RT-11 that can be used to < the install? That's oblique. It's possible to make a bootable RX50(or RX33) that is complete enough to be a system! To install from that is trivial as it's really INITing the target drive (assuming its LL formated) and copying everything to it then doing a copy/boot operation. Not much majik unless the version of RT has been really tweeked. Allison

27 years, 9 months

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MMD-2

by ddameron＠earthlink.net

Hi Bill and all, At 11:18 PM 10/12/98 -0400, you wrote: > >Hey, I've got a couple of E&L MMD-2's here. These are neat little >8080 educational SBC's. Hex keypad, "function" keypad, 7-segment >LED's, and three sets of 8 LED's for I/O ports 0, 1, 2. Includes >a cassette interface, bus expansion connector, serial interface, >and even an EPROM programmer for 2708/2716's. Most impressive! > >But I didn't get any sort of manuals with them. I've figured >out most of the obvious stuff, but it would be nice to know the >format expected by the "load" function, the meaning of a few >unlabelled switches/jumpers, the meaning of "BRL HI" and "BRL LO", >and so on. > Do you know if it's described in any magazine article? There is a 3 part series about the first MMD in the May, June, July 1976 Radio Electronics. It is an 8080 based system with 24 output bits and LED's, keypad, a solderless breadboard, 256 bytes ram (2x 2111), and 256 bytes rom (1702A). The article has the schematic and "monitor" listing and sample programs. I almost bought one a few years ago, but the price was too much, USD $150. By the way, the kit price back in 1976 was $350, assembled $500. -Dave

27 years, 9 months

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Commodore "PET 2001-8" Vintage Computer

by pete＠dunnington.u-net.com

On Oct 13, 17:26, Matt Pritchard wrote: > Subject: RE: Commodore "PET 2001-8" Vintage Computer > It doesn't appear to be in this version (Outlook 97). I'm sure there is an option for plain text, just not in quite the same place. > > -----Original Message----- > > From: Kai Kaltenbach [SMTP:kaikal@MICROSOFT.com] > > Sent: Tuesday, October 13, 1998 4:45 PM > > To: Discussion re-collecting of classic computers > > Subject: RE: Commodore "PET 2001-8" Vintage Computer > > > > If you're running Outlook, do Tools.Options/Mail Format, choose Rich Text > > from the drop-down list box instead of HTML. Plain text would be even better -- please don't post RTF, HTML, or encoded stuff to the list (or anywhere by mail, for that matter, unless you *know* the recipient wants it that way for some specific reason. Mail is an plain-text medium). -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 9 months

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Commodore "PET 2001-8" Vintage Computer

by pete＠dunnington.u-net.com

On Oct 13, 15:48, van lincoln wrote: > Subject: RE: Commodore "PET 2001-8" Vintage Computer > I can read it. I use eudora light. > At 02:41 PM 10/13/98 -0500, Matt Pritchard wrote: > >Am I the only person who can't read messages made up of tons of HTML junk? > >> To: Discussion re-collecting of classic computers > >> Subject: Commodore "PET 2001-8" Vintage Computer > >> > >> This message uses a character set that is not supported by the Internet > >> Service. To view the original message content, open the attached > >> message. If the text doesn't display correctly, save the attachment to > >> disk, and then open it using a viewer that can display the original > >> character set. << File: message.txt >> No, there are plenty of us here who either cannot, or do not wish to, read HTML in mail. Quite often we just silently ignore it. -- Pete Peter Turnbull Dept. of Computer Science University of York

27 years, 9 months

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RARE!!! (ebay)

by sinasohn＠ricochet.net

At 12:33 PM 10/13/98 -0700, you wrote: >> Since I have never seen the 8800BT, I'm sure it is rare, at least he says a >> number of times that this stuff is RARE. Shipping and handling including >Well... I don't know if I would consider it THAT rare... (at least not Oh come on, doncha know that anything sold on ebay *must* be extremely rare? It's in the terms of service... But in all honesty, in areas other than old computers, one can find some great prices on ebay. (Do a search for auctions I've won recently and you'll see some amazing deals on donald duck stuff. 8^) --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

27 years, 9 months

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Chat Thursday (fwd)

by yowza＠yowza.com

[This is from another list, but it might be interesting. -- Doug] ---------- Forwarded message ---------- Date: Tue, 13 Oct 1998 01:25:42 -0400 From: JAY RESPLER <JRespler(a)SURFNJ.NET> To: CALCLIST-L(a)techunix.technion.ac.il Subject: Chat Thursday Folks- Do you have an old Hermes in your basement? Do you collect ribbon tins or just like to talk about it? Have an old pinwheel calculator? When someone says they own a dusty old PET computer, do you find your interest perk up? This Thursday at 9 p.m.EDT (8 p.m. Central, 6 p.m. Pacific) we will be hosting a live chat with Jay Respler, an antique collector from Freehold, N.J. We hope that you will take this opportunity to visit with other people on the Internet about antique office equipment and even not-so-old office equipment now considered antique (the Commodor 64, for example). To enter, go to the main chat page: http://www.asaypub.com:8080/~chatrooms and click the mouse on the "Yesterday's Office Chat." You will be asked for some information, such as your e-mail address. Be there. You will likely enjoy it. Please feel free to contact me if there are any problems getting to the chat. You will need to have frames "on" in order for the chat to work properly. We also ask that people observe our chat policies of being courteous, waiting for an answer before responding, etc. Thanks. /Neal/ Neal McChristy, editor Repair, Service & Remarketing News P.O. Box 670 Joplin, Mo. 64802 mailto:nmcchristy@asaypub.com Ph. (800) 825-9633, ext. 238 FAX (417) 781-0427 -- Regards, Jay Respler -- JRespler(a)surfnj.net Sky Views: http://njsurf.com/skyviews/ Satellite Tracker * Early Typewriter Collector Freehold, New Jersey To unsubscribe send the command: unsubscribe CALCLIST-L to LISTSERV(a)techunix.technion.ac.il The email address of this list is : CALCLIST-L(a)techunix.technion.ac.il

27 years, 9 months

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Off-Topic Wierdness

by roblwill＠usaor.net

Did anyone notice that that "welcome screen" from their GUI looked like something a kit would have drawn in MS Paint? -- -Jason (roblwill(a)usaor.net) ICQ#-1730318 ---------- > From: Uncle Roger <sinasohn(a)ricochet.net> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Off-Topic Wierdness > Date: Tuesday, October 13, 1998 8:42 PM > > At 09:23 PM 10/12/98 -0400, you wrote: > >Would someone please check out accpc.com/home0.html#About, and enlighten > >some of us "historically challenged" individuals as to how much of their > >"history" is possibly truth vs. B.S.? > > They claim they had a windowing product in late '73/early '74 which is > supposedly long before the Alto -- But I thought the Alto was earlier than > that? > > I dunno for sure, but it sure sounds like a bunch of BS to me. > > > --------------------------------------------------------------------- O- > > Uncle Roger "There is pleasure pure in being mad > roger(a)sinasohn.com that none but madmen know." > Roger Louis Sinasohn & Associates > San Francisco, California http://www.sinasohn.com/ >

27 years, 9 months

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Picture up (RE: Microsci HAVAC)

by roblwill＠usaor.net

I noticed that ( I looked a 3 Disk II's that my school had, and they all had the grooved disc). I don't have the drive anymore (never was able to get it to work), but All I really remember is the round cable, the red apple (it was unusual), and the Disk II-type black front. If I remember correctly, the case was black, too. I don't remember a data cable (at least built on to it, like the Disk II) though. I can't remember if the round cable was for power, and there was a plug for data, or if the round cable was for power/data. I do remember that the plug was cut off the round cable, though. It was about as round as a AAA battery. I think it had five conductors. -- -Jason (roblwill(a)usaor.net) ICQ#-1730318 ---------- > From: Sam Ismail <dastar(a)ncal.verio.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Picture up (RE: Microsci HAVAC) > Date: Monday, October 12, 1998 11:00 PM > > A round cord? The Disk ]['s had a flat ribbon cable that connected to the > Disk ][ Controller. They got their power thru this cord. All the Disk > ]['s I have on hand (about 5) have the multi-colored Apple logo. Although > the solid red Apple sounds distinctly familiar on some piece of equipment. > > To be safe, I'll say as far as I know, and as far as the internals of > every Disk ][ I've seen go, they've all had the grooved disk for > positioning the head. >

27 years, 9 months

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