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

by stefan.boss＠gmx.net

Hello I have an old Matsushita plasma displays (from a Compaq PC I think). Do you have any information about this (or a similar) display... any datasheets about data communication or the power connector pins??? The display has the numbers MD400F640PD5 7.0.13 C:60963 I'm very glad if you could help me... yours sincerely, Stefan PS: I'm a student from Switzerland and I might be interessted to write a assembler-program with my microcontroller system (MC68HC11G5) for the display. Reference: http://www.heydon.org/kevan/mlists/classiccmp/1998-08/msg01244.html -- Sent through Global Message Exchange - http://www.gmx.net

26 years, 7 months

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FT/S: Commodore 1902A monitor only

by mtapley＠swri.edu

All, A friend of mine is looking to dispose of a spare monitor he picked up. It is a commodore 1902A (sic?) monitor unit, appearance OK but operational condition unknown. He'd like to exchange it for hoary old software (preferably) or $5 + shipping costs. Contact him by email at: robklar(a)swri.edu. Thanks, - Mark

26 years, 7 months

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Even Bigger problem with VMS

by M.Malik＠roehampton.ac.uk

Hi, I have an old Vax 4100a/VMS 6.2 machine and have tried what was suggested here: http://www.heydon.org/kevan/mlists/classiccmp/1997- 07/msg00447.html The problem I have is that the system disk is full (probably due to log files) and I am unable to boot up because of this. It does not work even with minium boot, I just want to be able to boot to the system disk and to delete/purge some files to get the system back up again. Can anyone help? Thanks in advance. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mubasher Malik Snr Systems Engineer C&IT (M.I.S Team) Roehampton Institute London Tel: 00 44 (0)208 392 3122 Fax: 00 44 (0)208 392 3182 e-mail: M.Malik(a)roehampton.ac.uk ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

26 years, 7 months

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990/10

by truthanl＠oclc.org

AL KOSSOW WRITES: ... I've had really bad luck with getting people to reply to email reqs for info on these systems (very frustrating..) Here is what I found Have with my systems. Many of theese DOCs are three hole punched, But Heavy Machine stapled as well: 990 Computer Family Systems Handbook Manual NO.945250-9701 Copyright 1975,1976 3rd Edition May 1976 paperback Handbook not ring bound ---------------------------------------------------------------------------- --------- DS990 COMMERCIAL SYSTEMS (3-inch Ring Binder) DS990 Models 4, 6, and 8, Systems Installation and Operation Manual Part No. 946284-9701 *A 15 September 1980 Model 990 Computer Model 810 Printer Installation and Operation Part No. 939460-9701 *A 15 May 1979 Model 990 Computer Universal ROM Loader User's Guide Part No. 2270534-9701 ** 15 April 1980 Model 990 Computer Model 911 Video Display Terminal Installation and Operation Part No. 945423-9701 *B 15 October 1981 DS990 Models 4 Through 9 Systems Site Preparation Part No. 2250361-9701 *C 1 May 1981 Model 990/10 Computer System Hardware Reference Manual Part No. 945417-9701 *B 15 November 1980 ---------------------------------------------------------------------------- ------------ Model 990/10 Computer System Hardware Reference Manual Part No. 945417-9701 *A 15 November 1979 ---------------------------------------------------------------------------- ----------- Model 990 Computer TX990 Operating System Programmers Guide ( Release 2) Manual No. 946259-9701 Original issue 1 April 1977 ---------------------------------------------------------------------------- ----------- Model 990 Computer TMS9900 Microprocessor Assembly Language Programmer's Guide Manual No. 943441-9701 Original Issue 1 June 1974 Revised and reissued 1 January 1976 ---------------------------------------------------------------------------- ----------- DS990 Commercial Systems ( 2.75-inch Ring Binder) Model 990 Computer Model DS10 Cartridge Disk System Installation and Operation Part No. 946261-9701 *A 15 August 1980 Model 990 Computer DS990 System Installation and Operation Manual Part No. 946284-9701 1 April 1979 Model 990 Computer Model 911 Video Display Terminal Installation and Operation Manual No. 945423-9701 Original issue 1 June 1977 Revised and reissued 15 January 1979 ---------------------------------------------------------------------------- -------- DX10 OPERATING SYSTEM Operation Guide Part No. 946250-9702 *F Volume II I have three of the DS10 Cartridge Disk Drives and 6 Removable Cartridge (Platters) IF I Have the DX 10 OS Software, I need learn how to get "down" to it. I started reading about serveral command syntax programmer interfaces. One Called SCI, another Called OCP, and then of coarse the DX10 OS Command syntax.

26 years, 7 months

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Copyright clearance (was Re: Classic Hardware DocumentationProject)

by edick＠idcomm.com

It can go either way. The information itself is likely to be property of the US Gov if it, and the hardware to which it pertains, was developed under U.S. contract. Nonetheless, unless the manual was actually printed by the GOV it may be copyrighted by the developer of the manual. You have to look at the copyright declaration in the document. With hardware documentation which was freely and customarily given away, e.g. separately from the hardware itself, like the OEM manual for a floppy drive, it's unlikely the copyright can be claimed to be of any substantial value. The owner of the copyright can probably cause you to stop publishing, posting, and distributing it, but since it was never sold, violating the owner's copyright cannot be interpreted as substantial damage to the owner, hence no basis for judgment for damages exists. Another thing is that if you publish the information in a format different from that in which it was published, i.e. flowed around the embedded illustrations in a different way, though it damages the value by fouling up references to the figures, it makes your document not necessarily the one which was copyrighted to the owner. It just depends on how useful the resulting document is. I don't know how helpful it is to know these things, but it's always useful to remember that nothing's etched in concrete where courts, judges, and lawyers are involved. Everything's subject to interpretation. It's just hard to imagine a court awarding damages to the holder of a copyright on a document pertaining to, and only to, a specific piece of hardware, the owner of which is the one party to whom that information is of interest, since it was for his benefit that the information existed in the first place, and it was generated to support the sale of that hardware, which purpose was clearly fulfilled at some time in the past. Dick -----Original Message----- From: Don Maslin <donm(a)cts.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, November 18, 1999 10:28 PM Subject: Re: Copyright clearance (was Re: Classic Hardware DocumentationProject) <snip> >> Must be some docs for a government contract prepared outside of the >> contract at Rolm's (or the prime contractor's) expense. Often, anything >> printed under a government contract is not copyrighted. > >I suspect that the distinction is whether the material was developed at >government expense rather than who printed it. After all, it is the >content that is copyrighted, not the manual itself. > > - don >

26 years, 7 months

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New finds and some h-11 help

by allisonp＠world.std.com

<> Will it boot into a monitor without the h-27 attached and is there a comm <> reference somewhere around? ODT, yes. Boot program no unless on the 9400YA. the LSI-11 cpu does not have boot program. I forget if the H27 Qbus card has a boot. Either way most PDP-11 boots are not that long to type in via ODT. <That depends entirely on your CPU/boot rom combo. My 11/23+ CPU (KDF11-AB <has an interactive boot program that lets me test stuff, dump the bus and <boot devices by name (DY0, DL1, etc.) The older ROMs for the 11/23+ aren' <as fancy - boot prompt (Y/N) and optionally the device mnemonic. No diags <no dialog. The 11/23+ was extended in that area, the 11/03, 11/2 and 11/23 (m8186) have no boots at all but, do have ODT. the 11/23 (m8189) series had three different rom sets with various boots that handled RX01/02, RL01/02, RK05 and Mop via serial plus other boot flavors and self tests. Allison

26 years, 7 months

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New finds and some h-11 help

by allisonp＠world.std.com

<I've got two complete H-11 systems but have not yet got them running. Back <burner project setting with all the others. Should get to them I guess so' <I could help several here who have them. I could look up stuff if either o <you need info. Seems Allison has had one for years that she hotrodded with <a better CPU, etc. Thats mroe or less true. Got rid of that box many years ago and am collecting the heath bits to make another. I have many Qbus 11s though and the heath is just another qbus 11 of less substantial design. I happen to like the h11-5 serial board, if DLV11-F or F similar and can be set up for current loop or rs232/423 with or without modem controls. I'm still using one to support a LA100 using the RT-11 LS driver, works very good @9600 baud. Allison

26 years, 7 months

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New finds and some h-11 help

by allisonp＠world.std.com

<I know there's alot on the h-11 in the archives and I'll hit them too but <know zilch about it right now. The cards in the tilt out qbus(?) are: < 1. Digital M7264 < 2. H-11-5 Serial i/o < 3. H27 Floppy i/o < 4. H-11-5 Serial i/o an ok designed DLV11e/f serial card. < 5. M8044 CB memory Q18 FYI: < 6. M9400 YB Teminator with boot, last card on the bus ALWAYS. < 7. WHA-11-16 16k x 16k Memory 16k static ram, heath... Good memory. <My goal is to get rt(h)-11 and some decus? software (a c compiler) softwar <humming. Decus C will run under RT. Watch out for the PS, the heath design was a switching low voltage design and tended to fry itself. Allison

26 years, 7 months

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Some More VAXish (SYSBOOT) questions..

by allisonp＠world.std.com

<Well, my resources concerning SYSBOOT limited to: < < From memory: < [Ctrl/P] Switch to Processor Console Mode < H Halt a running system (Worse than crashing it) < I Initialize (Program counter??) < U Unjam (??) < B Boot (From curent parameters??) You forgot [E]xamine ram and [W]rite ram. Most of these have arguments that extend them. Allison

26 years, 7 months

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Classic Hardware Documentation Project

by edick＠idcomm.com

I don't know what the "ideal" format for storing complete documents with both text and graphic representations of their content. I also don't want to resurrect the virtual war that resulted when I previously offered to generate PDF formatted files from dozens of floppy and hard disk documents in my possession. My scanner likes to produce TIF files and I can send 'em to you that way or in any other format that's hopefully easier to ship. Emanuel Stiebler was kind enough to scan the SHUGART and SEAGATE documents I have. His OCR software, which, in the wake of the flame-war over format, he hasn't yet found time to apply, prefers 4-bit greyscale for the best conversion. Mine prefers single-bit, which is naturally a quarter the size, so since mine produces typically 1 MB/page, his produced considerably more than that, and when he brought his 8GB SCSI drive for me to copy those files, I had to lay it off to tape because I didn't have that much space on my server. That documentation comprises perhaps half of one percent of what I'd like to put out there, but I absolutely don't want to form and maintain a website, so I'm grateful that you're willing. In compressed PDF, you can probably host hudreds of documents. In PCX, which I agree is an icky format, but which is about 1/4 the size of the single-bit TIF files my scanner coughs up, you won't even be able to host half my Intel documents. OCR is a possiblity, but there's no realtively easy way to link converted text to the associated illustrations, which are plentiful among old hardware doc's, to say nothing of the text found within the illustrations. I'd say you've got a tough job ahead of you, and I'll be sure to let you know they're about to demolish one of those old stock-brokerage/insurance company buildings with a 750TB disk farm still in it. Nonetheless, if you come up with a way to solve this data format/transport problem, please share it with me. Dick -----Original Message----- From: Jason McBrien <jbmcb(a)hotmail.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, November 18, 1999 3:50 PM Subject: Re: Classic Hardware Documentation Project >Sure! The more the merrier. I'm starting out small, I only have about 9GB of >disk space on a Linux box to host everything. I'm hoping to get a cheap, >gigantic IDE hard drive soon to complement it. PCX is a yucky format to >store documentation in, I'm scanning all my stuff in as PDF's or compressed >TIFFs, I'd like to stay away from GIFs because of all the legal weirdness >going on with Unisys. I'm going to work on it this weekend, and hopefully I >will have something up monday or tuesday. I'll let the list know... > >----- Original Message ----- >From: Richard Erlacher <edick(a)idcomm.com> >To: Discussion re-collecting of classic computers ><classiccmp(a)u.washington.edu> >Sent: Thursday, November 18, 1999 5:30 PM >Subject: Re: Classic Hardware Documentation Project > > >> GREAT!!! I've been pondering where to stash the documents, which will >> ultimately amount to about 100GB of scanned , maybe 25 GB of PCX-formatted >> documents on disk drives, which will compress, of course, but the volume >> grows steadily as I muck out. >> >> What I want is for all the hardware doc's I've saved all these years to be >> available to whoever needs them. >> >> Is that consistent with what you're planning? >> >> Dick >> >> -----Original Message----- >> From: Jason McBrien <jbmcb(a)hotmail.com> >> To: Discussion re-collecting of classic computers >> <classiccmp(a)u.washington.edu> >> Date: Thursday, November 18, 1999 1:52 PM >> Subject: Classic Hardware Documentation Project >> >> >> >I am starting a documentation project to collect hardware manuals and >> >technical documents for all different types of old computers. Before I >put >> >it up for all to enjoy, I need to write a legal disclaimer saying, to the >> >effect, that I make no claim to own anything and to the best of my >> knowledge >> >it's all public domain info. Anyone know how I should word it, or anyone >> >have an example on their web site? Thanks in advance. >> > >> >-Jason McBrien >> >-Wayne State University >> >-Big Iron Fiend >> >>

26 years, 7 months

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Some More VAXish questions..

by cvisors＠carnagevisors.net

Well, thanks to all those who replied last time. I think I may be getting somewhare with the vax. cant get the tape drive or deqna cards working, (their leds tell me something is wrong) but that is not what I am going to be asking about. When I try and boot the vax, I get Loading system software, 2..1..0.. %SYSBOOT-E-Unable to locate file DUDRIVER.EXE ?06 HLT INST PC = 0000692B now I can get into the sysboot utility, have no idea what to do here. Is there a way I can get around this missing file, is the some command at the chevrons (>>>) or the sysboot> that I can use to get round this? Thanks Benjamin -- www.carnagevisors.net

26 years, 7 months

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Classic Hardware Documentiation Project

by aek＠spies.com

"One thing that might be cool is a list of doc's that people have available for *trade*." That might be one of the fields in the record, along with # of copies. Or, if people have web pages, just a centralized list of 'have' and 'wanted' links would be handy.

26 years, 7 months

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Classic Hardware Documentiation Project

by aek＠spies.com

"I'm all for that. I fall into that latter as I've got a bunch of hardware without docs and have found none around so far. Then, I've got some docs but not the iron . . . " I think most folks are in the same situation, and I REALLY hate it when I find out Frank, Eric, or someone else out here has a manual that I just paid out the nose for on eBay. I'd be willing to host this on spies, if folks feel like sending me lists of docs or sw that they have for non-consumer computers (minis, etc. someone else can take care of the micros..) and a contact adr. I'll have to do this by hand for now until I can put some scripts together that would let people add/delete things through a web interface.

26 years, 7 months

2
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Classic Hardware Documentiation Project

by aek＠spies.com

Just to let folks know on the list that don't know about it already, www.spies.com/aek/orphan.html is a collection of documentation from dead computer companies. Other scanned docs exist for companies that are still around, as well as pointers to other sites. It may make sense to start a list of documentation and software that exists in private collectors hands to avoid duplication of effort, as has already happened with PDP-8 doc scanning, and to help others who have the iron, but not the bits.

26 years, 7 months

2
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New toy (Fat Mac 512)

by DSEAGRAV＠toad.xkl.com

And that's just what the nameplate says, "FAT MAC 512". Came with a disk with version 4.1 of Finder (Unknown MacOS) Finder says it's by Bruce Horn and Steve Capps, (C) 1985 Apple Computer. The Mac itself has the keyboard, mouse, and a printer, and an external disk drive. Got it for $10 at a garage sale. This would make a perfect console for the PDP-11 if I can find a terminal program for it. ^_^ The machine is in beautiful condition. Not a scratch on it. I'm gonna try keeping it that way. ^_^ I was told by the seller it was a broken word processor, it just flashed a question when she turned it on. (The disk was jammed halfway in the drive. A quick application of car keys fixed that. ^_^ Didn't roach the drive either.) I may take pictures later. (ObSlashdot)Wonder what I could do with a Beowulf cluster of these... ^_^ -------

26 years, 7 months

1
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Classic Hardware Documentation Project

by edick＠idcomm.com

GREAT!!! I've been pondering where to stash the documents, which will ultimately amount to about 100GB of scanned , maybe 25 GB of PCX-formatted documents on disk drives, which will compress, of course, but the volume grows steadily as I muck out. What I want is for all the hardware doc's I've saved all these years to be available to whoever needs them. Is that consistent with what you're planning? Dick -----Original Message----- From: Jason McBrien <jbmcb(a)hotmail.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, November 18, 1999 1:52 PM Subject: Classic Hardware Documentation Project >I am starting a documentation project to collect hardware manuals and >technical documents for all different types of old computers. Before I put >it up for all to enjoy, I need to write a legal disclaimer saying, to the >effect, that I make no claim to own anything and to the best of my knowledge >it's all public domain info. Anyone know how I should word it, or anyone >have an example on their web site? Thanks in advance. > >-Jason McBrien >-Wayne State University >-Big Iron Fiend

26 years, 7 months

2
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New finds and some h-11 help

by ethan_dicks＠yahoo.com

--- Mike <dogas(a)leading.net> wrote: > >BTW, that 4x6 connector is Heathkit propietary. By this I meant that only Heathkit used it for a serial connector. It's a standard Molex of some type, AFAIK. > > ...I'd pull the H-11-5 and go with a DLV11-J... > How are they different? The DLV11-J uses "standard" DEC .1" spacing, 2x5 Berg connectors. There are also wiring harnesses and backpanels to convert the Berg ends to a panel with 4 x DB-25 w/standard DEC wiring (Male, DTE). Oh, yeah... the DLV11-J is a quad serial card at standard addresses (so you can hang a TU-58 on it and RT-11 will know where to look), the H-11-5 is a single console port, like some other DLV11 card (not the "J", "E" perhaps?) > Will it boot into a monitor without the h-27 attached and is there a command > reference somewhere around? That depends entirely on your CPU/boot rom combo. My 11/23+ CPU (KDF11-AB) has an interactive boot program that lets me test stuff, dump the bus and boot devices by name (DY0, DL1, etc.) The older ROMs for the 11/23+ aren't as fancy - boot prompt (Y/N) and optionally the device mnemonic. No diags, no dialog. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

26 years, 7 months

1
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New finds and some h-11 help

by ethan_dicks＠yahoo.com

--- "Zane H. Healy" <healyzh(a)aracnet.com> wrote: > > 1. Digital M7264 > PDP-11/03 processor > > 2. H-11-5 Serial i/o > > 3. H27 Floppy i/o > > 4. H-11-5 Serial i/o > > 5. M8044 CB > 16 KW RAM > > 6. M9400 YB > 120-ohm Terminator > > 7. WHA-11-16 16k x 16k Memory > > > >First question, does it matter how these boards are plugged into the > >backplane? To a certain extent - the CPU should be at one end of the Qbus, the M9400 at the other. Other stuff is not so critical. > If so, where do they go? What are boards #6 and #7? The The M9400 is at least a Qbus terminator if not a Qbus terminator and boot card... I forget what the "YB" designator means, and my H-11 is not in front of me (it has a KDF-11 "PDP-11/23+" CPU card in there, anyway). The WHA-11-16 is some third-party card with which I am not familiar. > Well, I would think that 6 & 7 are reversed, but I'm not familair with the > H-11, so there might be soemthing wierd going on there. It is wierd - the backplane is upsidedown - the cards go in with the solder side up. It threw me for a loop the first time, too. Fortunately, I didn't "fix" the problem and power up. BTW, that 4x6 connector is Heathkit propietary. I have never seen one anywhere else except hanging up on the wall of the local electronics warehouse about 15 years ago back when that kind of connector was more common. It's a type of Molex connector. If you have _any_ DEC async boards, I'd pull the H-11-5 and go with a DLV11-J or the like. I have an H-11-5. It's *not* in the H-11. It's on the shelf. I do not have any docs, though, before you ask. I am stymied with the H-27 interface card. I have tested all the TTL ICs, but this thing still locks up the Qbus when it's plugged into the grant chain with no gaps. With gaps, it begins to read the floppy at boot time, but as soon as the boot code turns on interrupts, because the interface is in the wrong place, the system hangs, waiting for the interrupt that never comes. I've been working on other systems recently - a pdp-8/e and pdp-8/L, specifically. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

26 years, 7 months

2
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New finds and some h-11 help

by dogas＠leading.net

From: Ethan Dicks <ethan_dicks(a)yahoo.com> >... >It is wierd - the backplane is upsidedown - the cards go in with the solder >side up. It threw me for a loop the first time, too. Fortunately, I didn't >"fix" the problem and power up. A shared experience. >BTW, that 4x6 connector is Heathkit propietary. I have never seen one >anywhere else except hanging up on the wall of the local electronics >warehouse about 15 years ago back when that kind of connector was more >common. It's a type of Molex connector. I guessed that one too. ;) >If you have _any_ DEC async boards, I'd pull the H-11-5 and go with a DLV11-J >or the like. I have an H-11-5. It's *not* in the H-11. It's on the shelf. How are they different? >I do not have any docs, though, before you ask. I am stymied with the H-27 >interface card. I have tested all the TTL ICs, but this thing still locks >up the Qbus when it's plugged into the grant chain with no gaps. With gaps, >it begins to read the floppy at boot time, but as soon as the boot code >turns on interrupts, because the interface is in the wrong place, the system >hangs, waiting for the interrupt that never comes. Will it boot into a monitor without the h-27 attached and is there a command reference somewhere around? > >===== >Infinet has been sold. The domain is going away in February. >Please send all replies to > > erd(a)iname.com >__________________________________________________ >Do You Yahoo!? >Bid and sell for free at http://auctions.yahoo.com >

26 years, 7 months

1
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AT&T 3B2/300 Ppower supply available

by ethan_dicks＠yahoo.com

I was just going through the attic and found an old 3B2/300 shell. The only thing left is the bottom sheet metal and the power supply. If anyone wants it, I'm asking 1.2 * shipping. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

26 years, 7 months

1
0
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Xerox D-series workstations

by yoda＠isr.ist.utl.pt

I've just read your mails about the Xerox's keyboard/mouse interface, and it seems I've reached the same conclusions (cool!). Now, I'm still hacking a simple 422-232 interface, using the HandyBoard's MAX232 and some TTL logic. Although, I've been able to receive ASCII text from the bus. Can't send useful data still. (I can post the details of my connections if anyone interested). When the workstation boots, it sends a burst of data through the RS422 bus (in hex): 01 55 aa 00 01 02 03 ... fe ff 00 01 02 03 ... fe ff But I still can't get a repeatable behavior, I mean, when I press some keys, the xerox seems to react, but if I press the same keys again, it does not. I suspect It has to do with an improper 422-232 level conversion. I'm going to try again tonight. Cheers, -- *** Rodrigo Martins de Matos Ventura <yoda(a)isr.ist.utl.pt> *** Web page: http://www.isr.ist.utl.pt/~yoda *** Teaching Assistant and MSc Student at ISR: *** Instituto de Sistemas e Robotica, Polo de Lisboa *** Instituto Superior Tecnico, Lisboa, PORTUGAL *** PGP fingerprint = 0119 AD13 9EEE 264A 3F10 31D3 89B3 C6C4 60C6 4585

26 years, 7 months

2
1
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YADML - Yet Another DEC Module List

by healyzh＠aracnet.com

What can I say, I got tired of 3+ different lists for modules not covered in the "Field Guide", and have merged them into one list. I've also added some flip-chips to the list that weren't in any of the other three lists. Currently it's primarily PDP-8 related, but I'm working on fixing that and adding stuff from other PDP's (I'm not adding stuff in the "Field Guide"). The original three lists can be found at: http://www.spiritone.com/~nabil/pdp8/modules.txt http://www.spiritone.com/~nabil/pdp8/omni.txt http://www.spiritone.com/~nabil/pdp8/sq.txt The merged list with addtions can be found at: ftp://zane.brouhaha.com/pub/ModuleList.txt If anyone has any additions or corrections I'll add them in. If anyone has any suggestions I'd be interested in those also. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)aracnet.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.aracnet.com/~healyzh/ |

26 years, 7 months

2
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old NEC APC computer

by Innfogra＠aol.com

I had a color APC set up for AutoCAD 1.1 at one time. One of several that passed through my hands. They are a very nice machines, the color especially. There is a NEC hard drive (5 1/4" external) that worked with it. I had a hard drive and APC documentation until my warehouse cleanout. I don't think they were salvaged. If there is any software (CPM-86 and/or MS-DOS 2.11) for it the APC is a good candidate for a collection. Paxton

26 years, 7 months

1
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New finds and some h-11 help

by dogas＠leading.net

Hi all, I've been fortunate lately. Recent system arrivals include a Motorola Exorcisor&Disk and MEK 6800d2, an OSI Challenger iii and replacement power supply, an OSI Challenger 500 with a chunky doc set, a MITS 680, a KIM-4/hb tvt-6/etc...,and a Heathkit H-11/H-27. Frankly, I'm overwhelmed, but enjoying it. It's hard to find all the necessary time each of these machines are screaming for between all my other grand schemes but I manage. I've been pretty quite lately but lurking when I get a chance and as usual have enjoyed it all. I know there's alot on the h-11 in the archives and I'll hit them too but I know zilch about it right now. The cards in the tilt out qbus(?) are: 1. Digital M7264 2. H-11-5 Serial i/o 3. H27 Floppy i/o 4. H-11-5 Serial i/o 5. M8044 CB 6. M9400 YB 7. WHA-11-16 16k x 16k Memory First question, does it matter how these boards are plugged into the backplane? If so, where do they go? What are boards #6 and #7? The WHA-11-16 had a memory chip that was partially popped out and the right drive latch on the H-27 is cracked but repariable I think. Next question, anyone got a recommendation on where I can find that rectangular(4x6 pin) serial connector? And lastly, dc on, dc off... ??? I'd appreciate copys of any docs for this thing anyone is willing to copy (and software too...) My goal is to get rt(h)-11 and some decus? software (a c compiler) software humming. Thanks for any help - Mike: dogas(a)leading.net

26 years, 7 months

2
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E.U.N.U.C.H.

by Philip.Belben＠pgen.com

> P.S.: When designing a new cooler element/radiator, keep in mind that > silver is a way better thermal conductor than Al or Cu. Not quite accurate, Hans. Silver and Copper are way better thermal conductors than Alumin(i)um, but there's not much to choose between the two of them.

26 years, 7 months

7
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TI99 another issue.

by rigdonj＠intellistar.net

I used to work on the TI 99/10 but I don't remember much about them. I do remember that it was nearly impossible to fix the circuit cards. They were multi-layer and used very fine wires for the circuit traces. Joe At 08:30 AM 11/18/99 -0500, you wrote: >I have a TI 990/10 mini as well as a handbook for the SYSTEM family of >peripherals for TI 990 systems. > >Sincerely >Larry Truthan > >-----Original Message----- >From: John R. Keys Jr. [mailto:jrkeys@concentric.net] >Sent: Wednesday, November 17, 1999 7:37 PM >To: Discussion re-collecting of classic computers >Subject: Re: TI99 another issue. > > >There web sites showing both machines and they are real, but hard to find. >----- Original Message ----- >From: Hans Franke <Hans.Franke(a)mch20.sbs.de> >To: Discussion re-collecting of classic computers ><classiccmp(a)u.washington.edu> >Sent: Wednesday, November 17, 1999 9:30 AM >Subject: TI99 another issue. > > >> Does anybody here on the list know about the TI 99/2 or /8 models ? >> Or own one ? I just remember photographs from the early 80s. >> >> Gruss >> H. >> >> -- >> Stimm gegen SPAM: http://www.politik-digital.de/spam/de/ >> Vote against SPAM: http://www.politik-digital.de/spam/en/ >> Votez contre le SPAM: http://www.politik-digital.de/spam/fr/ >> Ich denke, also bin ich, also gut >> HRK >> >

26 years, 7 months

1
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old NEC APC computer

by woodfrog＠operamail.com

Hi all, this is my first post to the list. I saw an old NEC computer in a storage shed that I was thinking of trying to save. It has 'APC' on the front (Advanced Personal Computer?), two vertical 8" floppies, and built in screen. Is it one of those 8-bit CP/M systems? If anyone has any info on this system I would appreciate it. Thanks. Andy ----------- Andy Molloy woodfrog(a)operamail.com

26 years, 7 months

4
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Sinclair QL and others..

by pmarzolf＠juno.com

On Wed, 17 Nov 1999 21:08:02 -0600 George E Hall <ghall8360(a)juno.com> writes: > Do you still have any of the PCs that you wanted to get rid of? ====> I don't know if this was directed to me or not but will answer. I have one PC left to find a home for. ARC X-TURBO FLIP TOP CASE, 640K 8MHZ MOTHER BOARD, CLOCK/CALENDAR, TWO PAR, 2 SER, GAME PORT, 4 DRIVE CONTROLLER (RIBBON CABLES), 135W POWER SUPPLY, COLOR BOARD(RGB), 83 KEY KEYBOARD, TAXAN 415 MONITOR, THE HEART OF THE ARC X-TURBO IS THE INTEL 8088-2 MICRO-PROCESSOR USED IN THE IBM PERSONAL COMPUTER. TWO 5 1/4' FULL SIZE DISK DRIVES. TWO 5 1/4" HALF SIZE HIGH DENSITY EXTERNAL DISK DRIVES ====> If interested let me know Paul Marzolf pmarzolf(a)juno.com ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj.

26 years, 7 months

1
0
0 0

Whoohoo! Fortune Telling...

by dylanb＠sympatico.ca

No Duty. I move machines from the US to Canada and Canada to the US.. You pay DEPENDING on how honest you are. You may have to pay State tax on the purchase price when bringing it across the border. Be sure to say it is for your PERSONAL hobby. Get a receipt from the place you are purchasing the mini from. If you..,,, well.... ummm, some people.. might do this: Go to the customs office BEFORE they pick up their equipment. They bring a small dead case with a tag that has the "model # and serial number" of the mini. They get customs to give them a green card for the unit so it can re-enter the country free of charge. You get the idea.... or They write you a receipt for $50 calling it old computer junk.. It's hardly worth while if you are paying small $$$$ for it. Make sure you know the country of origin. If you tell customs this is a business transaction and you don't have an Import/Export License nor valid paper work you will probably end up LEAVING it there... (after they beat you up ;-) ) To avoid hassles I got my import/export license and am my own Broker... no headaches other than having to wait in line with the truckers. john http://www.pdp8.com/ -----Original Message----- From: Eric Smith <eric(a)brouhaha.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Saturday, November 13, 1999 4:57 PM Subject: Re: Whoohoo! Fortune Telling... >Roger Merchberger <zmerch(a)30below.com> wrote about moving big iron >from Canada to the US: >> and what problems I might have with Customs on the >> return trip (but I know a lot of Customs agents, so I should be able to >> swing anything provided it's not illegal... :-) > >I don't know any Customs agents, but I need to move a large machine from >Vancouver BC into the US soon. What sort of experience should I expect? >If asked to describe it, what should I say? Will I have to pay duties >on it? >

26 years, 7 months

4
3
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T1200 blues

by Ant165＠aol.com

I have a toshiba T1200, but the screen cracked, i've taken it apart, and lost jumpers, the hard drive stopped working, and i just wanna know if anyone knows how to get this thing back to life?

26 years, 7 months

1
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Dont want to start a flame war here but

by edick＠idcomm.com

When you get to my stage of life, they're just as much fun in bed . . . trust me . . . Dick -----Original Message----- From: Bill Sudbrink <bill(a)chipware.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Monday, November 15, 1999 3:05 PM Subject: Re: Dont want to start a flame war here but >> One more thing . . . about those wives . . . I've done >> pretty well without 'em and prefer it that way, having >> tried it both ways. >> >> The old computer hardware's cheaper, easier to live >> with, and more forgiving. > >Yes, but not as much fun in bed. (Sorry, couldn't resist)

26 years, 7 months

3
2
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TI99 another issue.

by truthanl＠oclc.org

I have a TI 990/10 mini as well as a handbook for the SYSTEM family of peripherals for TI 990 systems. Sincerely Larry Truthan -----Original Message----- From: John R. Keys Jr. [mailto:jrkeys@concentric.net] Sent: Wednesday, November 17, 1999 7:37 PM To: Discussion re-collecting of classic computers Subject: Re: TI99 another issue. There web sites showing both machines and they are real, but hard to find. ----- Original Message ----- From: Hans Franke <Hans.Franke(a)mch20.sbs.de> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Sent: Wednesday, November 17, 1999 9:30 AM Subject: TI99 another issue. > Does anybody here on the list know about the TI 99/2 or /8 models ? > Or own one ? I just remember photographs from the early 80s. > > Gruss > H. > > -- > Stimm gegen SPAM: http://www.politik-digital.de/spam/de/ > Vote against SPAM: http://www.politik-digital.de/spam/en/ > Votez contre le SPAM: http://www.politik-digital.de/spam/fr/ > Ich denke, also bin ich, also gut > HRK >

26 years, 7 months

2
1
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sightings report: Grid desktop PC

by rigdonj＠intellistar.net

Hi All, I was in a surplus store yesterday and they had a GRID desktop PC. I didn't know GRID ever made a desktop model. This was a white case with both 3.5" and 5.25" disk drives and 7 expansion slots and a separate monitor. It looks a lot like an Epson Equity computer. Any comments? Joe

26 years, 7 months

2
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old NEC APC computer

by jeff.kaneko＠juno.com

On Thu, 18 Nov 1999 10:58:05 -0500 (EST) "Merle K. Peirce" <at258(a)osfn.org> writes: > A hard drive was offered for the system. There were APC Newsletters > also.We have some somewhere and they detail all the peripherals on > offer. > > On Thu, 18 Nov 1999, Jeffrey l Kaneko wrote: > > > According to the _Microcomputer_Buyers_Guide_ (1983 edition): > > > > "The APC is a new 16-bit microcomputer from NEC. > > The basic compact integrated desktop system includes <SNIP> Interesting, that must have been offered *after* 1983! Did they later remove the 256k memory limitation? Also, in mid-83 they offered some Z-80 systems that used OASIS. Funny the _Buyers_Guide_ supplement (dated 5/83) mention harddrives (big, for the time) for their CP/M and OASIS machines, but nothing for NEC's 16-bit systems. I guess no reference is definitive . . . ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj.

26 years, 7 months

1
0
0 0

DF32 disk writer

by dylanb＠sympatico.ca

Does anyone here have a DF32 disk writer? If not, I got the schematics and theory to one and guess I'll end up quickly building one. john

26 years, 7 months

1
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old NEC APC computer

by jeff.kaneko＠juno.com

According to the _Microcomputer_Buyers_Guide_ (1983 edition): "The APC is a new 16-bit microcomputer from NEC. The basic compact integrated desktop system includes the following components: NEC UPD 8086 (8086 compatible) 5MHz microprocessor, 128k RAM memory; 4Kb ROM; 4kb CMOS RAM; parallel printer interface; one or two 8" floppy disk drives at 243Kb or 1Mb capacity; music output; momochrome or color display (depending on the model); and keyboard. The APC can expand to 256Kb of RAM; maximum of two 8" floppy disks; second RS-232 port; 32-bit floating point unit; and a line drawing graphics subsystem." A kinda odd system, with some rather strange limitations for a micro in 1983. Most notably, memory limitations and the fact that there are no hard disks offered for it. Definitely a pre-PC design. I am under he impression that it was originally intended as a word processor, but marketed as a computer. It ran CPM-86 or MS-DOS (both specific to the APC). The graphics board could do 1024 x 1024, although only 640 x 475 could be actually displayed on screen. The color version used an 8 color (3-bit) palette. Suggested base price: Color, dual floppy $4,998 Mono, single floppy $3,298 Jeff On Thu, 18 Nov 1999 09:43:06 -0500 "Charles E. Fox" <foxvideo(a)wincom.net> writes: > At 09:34 AM 11/18/1999 -0500, you wrote: > >Hi all, this is my first post to the list. > > > >I saw an old NEC computer in a storage shed that I was thinking of > trying to > >save. It has 'APC' on the front (Advanced Personal Computer?), two > vertical 8" > >floppies, and built in screen. Is it one of those 8-bit CP/M > systems? If > >anyone has any info on this system I would appreciate it. Thanks. > > > >Andy > > > Hi, Andy: > > The one I have uses an early version of DOS, but that is all > the info I > have on it. > > Regards > > Charlie Fox > > > Charles E. Fox > Chas E. Fox Video Productions > 793 Argyle Rd. Windsor N8Y 3J8 Ont. Canada > email foxvideo(a)wincom.net Homepage > http://www.wincom.net/foxvideo > ___________________________________________________________________ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj.

26 years, 7 months

2
1
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Hyperion Passport, Apricot, Convergent Technologies workSlate,

by Philip.Belben＠pgen.com

> The Apricot is a UK-made IBM-incompatible (my term for an 80x86 box that > runs MS-DOS or CP/M86, but which doesn't have PC-like hardware). There > were various models made, most using 8086 CPUs. > > I think Apricot went on to make some 80286 and higher machines that were > basically PC-clones :-( They did. They were then bought by Mitsubishi (I think) who went on using the Apricot name right on into 486 days - a pc clone called Xen, IIRC. Philip. This E-mail message is private and confidential and should only be read by those to whom it is addressed. If you are not the intended recipient, you are hereby notified that any dissemination, distribution, copying, reproduction, modification or publication of this communication is strictly prohibited. Please delete the message from your computer and destroy any copies. This message is not intended to be relied upon by any person without subsequent written confirmation of its contents. This company therefore disclaims all responsibility and accepts no liability of any kind which may arise from any person acting, or refraining from acting, upon the contents of the message without having had subsequent written confirmation. If you have received this communication in error, or if any problems occur in transmission please notify us immediately by telephone on +44 (0)2476 425474

26 years, 7 months

1
0
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E.U.N.U.C.H.

by Philip.Belben＠pgen.com

>>Considering that the aluminum heat-exchanger/cold-plates from my last >>water-cooled design weigh more than 7lbs total, I don't think I'm going to >>be re-implementing my design in silver any time too soon... > > Aw, c'mon! By my (admittedly rough) calculations, that's only about $510USD > worth of silver (at $5/troy oz spot price). Isn't your hobby worth that? ;-) Did you take account of the difference in density? In such an installation it is usually the volume that is fixed, not the mass... :-) Philip. This E-mail message is private and confidential and should only be read by those to whom it is addressed. If you are not the intended recipient, you are hereby notified that any dissemination, distribution, copying, reproduction, modification or publication of this communication is strictly prohibited. Please delete the message from your computer and destroy any copies. This message is not intended to be relied upon by any person without subsequent written confirmation of its contents. This company therefore disclaims all responsibility and accepts no liability of any kind which may arise from any person acting, or refraining from acting, upon the contents of the message without having had subsequent written confirmation. If you have received this communication in error, or if any problems occur in transmission please notify us immediately by telephone on +44 (0)2476 425474

26 years, 7 months

1
0
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Amdek Disks and Drives

by Maddog1331＠aol.com

Hey, I was wondering if anyone could give me more info on some stuff. I have bought a HUGE lot of old computer stuff, and part of it is a slew of Amdek disks and disk drives. One of the Amdek drives says Atari computer ( I think...I still have yet to get all this stuff to the house, much less sort through it....gonna be a great weekend of fun :-D) Anyway, whats the deal with Amdek? I have quite a few drives, and a bunch of disks! What was their main purpose? For just Atari, or IBM? Also, what is their capacity? The disks look neat, and rugged...I am hoping that they will still work :-) Anyway, this bunch of stuff came with lots of parts too...sealed keyboard boards for different systems and such. I think that this came out of somebodys old computer repair place. Even has some replacement doohickeys for dot matrix printers. Im still sorting this stuff out. Ill let yall know more as I go along! Mark

26 years, 7 months

1
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Sinclair QL and others..

by Maddog1331＠aol.com

me? I have some sinclair 1000s with printers and such, im a little confused on what posting you are replying to :-) Mark

26 years, 7 months

1
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Thank you folks! The information will come in really handy!!!!

by Maddog1331＠aol.com

Wow....thanks for all the responses....I thought the workSlate was the only thing I had never seen, but the more I go through this stuff the more stuff comes out I am not familiar with! Thank you all for the information you gave me!!! Very Sincerely, Mark Saarinen

26 years, 7 months

1
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Sinclair QL and others..

by ghall8360＠juno.com

Do you still have any of the PCs that you wanted to get rid of?

26 years, 7 months

1
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Need VAX cables

by vaxman＠uswest.net

Hi, In my efforts to get all my VAXes up and running, I am in need of a few cables/parts. If you have something, let me know how much you want for it. No reasonable offer refused... If you know where I can get something on the list, let me know and you will receive a NOS thank you for your trouble :) Qty P/N Function any VAX-11/7xx printsets / technical documentation 1 EK-GA750 VAX 11/750 gate array handbook any VAXstation 3100 / KA42 technical documentation 2 BC18Z Vaxstation color graphics/keyboard/mouse cable DB-15 (not PC VGA) on one end, block with mini-din for mouse, RJ-45 for keyboard, and 3 BNCs for video 3 BC18P Vaxstation mono graphics/keyboard/mouse cable DB-15 (not PC VGA) on one end, block with mini-din for mouse, RJ-45 for keyboard, and 1 BNC for video 1 BC09J Vaxstation 3100 SCSI cable 68pin Champ? connector on one end, standard SCSI-1 micro ribbon on the other (I think) 1 Vaxstation 3100 SCSI terminator a few DECconnect cables and DB-25 adapters Any other early VAX stuff you think I should have :) Thanks, clint

26 years, 7 months

2
1
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PDP 8I up and running but....

by dylanb＠sympatico.ca

-----Original Message----- From: Derek Peschel <dpeschel(a)u.washington.edu> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Wednesday, November 17, 1999 8:55 PM Subject: Re: PDP 8I up and running but.... >John B wrote: > >> The 8I is up and running and the paper tape is now going.. I'll try FOCAL >> and BASIC before playing with OS/8... > >Congratulations! > >> What is (these are on paper tape): >> >> 1) DEC X-8 (large paper tape.. I think more than 1) > >An "exerciser" or diagnostic program. This one was installed in core during >the last stage of production at the factory. If you had bought a PDP-8 new, >you would be able to take it home, set it up, turn it on, and see X-8 >start running where it had left off. Sounds cool. I will have to try it out. > >> 2) PT/8 ???? (Many tapes... but I have no idea what it is) > sorry it was PS/8 , not OS/8. >I don't know. > >-- Derek >

26 years, 7 months

2
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PDP 8I up and running but....

by dylanb＠sympatico.ca

The 8I is up and running and the paper tape is now going.. I'll try FOCAL and BASIC before playing with OS/8... but. What is (these are on paper tape): 1) DEC X-8 (large paper tape.. I think more than 1) 2) PT/8 ???? (Many tapes... but I have no idea what it is)

26 years, 7 months

2
1
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transferring data between APPLE IIGS CP/M diskettes and the real world.

by edick＠idcomm.com

I got a plea for help from a fellow named Andrew Saunders <ASAUNDERS(a)worldnet.att.net> who needs some help with his APPLE-][gs. Maybe someone could help him out, as I surely can't. I know some of you guys know more about this than I. I sent him the mailing list address so he can subscribe if he wants. Dick -----Original Message----- From: Don Maslin <donm(a)cts.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Wednesday, November 17, 1999 3:49 PM Subject: Re: Hyperion Passport, Apricot, Convergent Technologies workSlate,Amdek, HELP! > > >On Wed, 17 Nov 1999 Maddog1331(a)aol.com wrote: > >> Hey all...I am new to this classic computer collecting, but I have been >> buying and reselling systems for a few months now. Anyway, I recently >> acquired a Hyperion Passport (or is it a Passport Hyperion?), an Apricot, a >> workSlate, and some drives, and other stuff (diskettes, or things) that say >> Amdek on them. I am just looking on any information I can find on these! I > >My top of the head reaction to the name Amdek would be that the >diskettes are hard cased like a 3.5" diskette only narrower and have a >plastic hub that is accessible from either side of the case. They >are/were used in Amstrad PCW 8nnn machines, amongst others. > > - don > >> am attempting to put a value on them, and am trying to decide which to keep, >> if any....I am running out of room it seems :-) >> >> Any help would be appreciated! >> >> Sincerely, >> >> Mark Saarinen >> >

26 years, 7 months

1
0
0 0

IBM 4381

by SUPRDAVE＠aol.com

In a message dated 11/17/99 3:46:55 AM Eastern Standard Time, enrico.badella(a)softstar.it writes: > I have the opportunity to save an IBM 4381 with lots of disks and tapes; it > is currently running VM ESA 2.1 and also has two 8232 Ethernet units. With > a friend we would like to acquire it and put it on Internet with free > accounts > to requesters. > > I don't have any in field experience with IBM mainframe internals and have > considered this configuration > > - CPU one processor > - 3420 tape > - 8232 Ethernet controller > - 3990 control Unit > - 1 disk string (3 disks or less but need work on the cabinet to > separate the disk subsystems) > > My questions are: > > - not planning to use SNA or 3270, at least initially, do we need > to set up the 3745 FEP? > - is the above configuration reasonable for a minimum system? > - tightly packing all the devices to fit in a 15 square meter room > will cause heating or other problems? > - how may would be interested in accessing the machine? > - anybody willing to offer knowledge? IBM was not very helpfully > to put it kindly. > I was a jr operator on a 4381 in 1991. from what your email says, sounds like you have quite a lot of hardware to move and setup somewhere. a 3990 control unit makes me think there are 3880 DASD units which will take up lots of space and power and make lots of noise to boot. the 4381 is about the size of a closet and almost 7 feet tall. in the shop i worked in, they had two ac units going and the standard raised floor. you'll definately need cooling of some sort. you might try IBM again, call their general number, 800.IBM.3333 or 800.IBM.4YOU (i think) and ask for the number of the local 'branch office' which should get you some info. I'm estimating you will need at least a 20x20 foot room to run this configuration. DB Young Team OS/2 --> this message printed on recycled disk space view the computers of yesteryear at http://members.aol.com/suprdave/classiccmp/museum.htm (now accepting donations!)

26 years, 7 months

1
0
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TI99: Is the following true?

by steverob＠hotoffice.com

> > So anywho, Qbasic was the MS answer to C-basic which was a semi compiled > non line number dependent basic. Qbasic is not fully compiled to native > machine assembly language. I know this as I still maintain a PC app > written in Qbasic (as recently as last week)! Qbasic also tried to copy > the Borland "IDE" <Integrated Development Environment> used the Turbo<insert > language here> they had for z80 and later PCs, in that you could edit, run > interpretively and then compile the working result. IMHO, an outstanding piece of software. I still use it when I need a quick and dirty solution. Steve Robertson <steverob(a)hotoffice.com>

26 years, 7 months

4
3
0 0

E.U.N.U.C.H.

by edick＠idcomm.com

4" doesn't really make for a "deep" hole. You should be able to do this with pretty standard drill bits, but cool them and lubricate them. For best results, use a coarse feed and a relatively slow speed with a very sharp (best is freshly sharpened for every hole) tool. Drill your holes in a single stroke, so you won't have to cope with a work-hardened surface. Take your time. If you custom machine your heatsink to fit the enclosure it lives in, fitting it with 1/4" i.d. holes and 1/4" pipe for circulating the liquid coolant (no FREON or other CFC's...we've got to be ozone-layer-friendly) you can always put an arbitrarily large exchanger outside in the winter, to keep the temperature in the circulating fluid somehwere around -100 Celsius. Remember, what matters is the amount of HEAT you transfer, not the temperature difference, though the heat flows faster between regions of more widely differing temperature. You might even find you don't need so large a delta-T. If you move vast quantities of cold air through a 1 cu. yd. outdoor heatsink, you could put an array of large peltier coolers there to heat that heatsink at the expense of the heat carried to it from the computer in the house. Hopefully you're not trying to be terribly efficient . . . Dick -----Original Message----- From: Aaron Christopher Finney <af-list(a)is1.wfi-inc.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Wednesday, November 17, 1999 2:42 PM Subject: Re: E.U.N.U.C.H. >On Wed, 17 Nov 1999 Philip.Belben(a)pgen.com wrote: > >> Anyway, it seems to me that the way to go is: >> >> 1. Peltier chip between CPU and heatsink. Heatsink is a large block of copper. >> >> 2. Use a refrigerant cycle similar to a domestic freezer, but connect the >> refrigerant circuit directly to holes bored in the heatsink block. No >> intervening water circuit. >> >> 3. Of course, keep the refrigerant radiator well away from the system, and >> supply it with plenty of fans... >> >> 4. Finally, try not to spill refrigerant if it's one of those chlorinated >> organics that the environmentalists are always going on about. It won't do any >> good (although a discussion of whether it does harm is decidedly off-topic), and >> will be well-nigh impossible to replace... > > >One issue with copper is the cost. I can buy .5" x 4" aluminum barstock at >around $2.00 a foot (I'm sure our friends in Europe love these units of >measurement). It's also relatively easy to bore through with a >high-quality drill bit if cooled with running water. Also, if I happen to >screw up and drill through the side I don't cry as much... > >For my current peltier-based setup, I have to use a coldplate against the >cpu itself because I'm using multiple TECs in the design. After getting >some help with actually arranging the different variables into a useable >equation, I was pleasantly surprised to find that the temperatures were >within +/- 3C of my calculations. > >One last note about using a water-exchanger in this setup (and then I'll >shut-up, I promise), is that it's nice not to have to worry about cooling >the inside of the case too! Also, it doesn't sound like a jet-engine >starting up...the pump is more like the pleasant gurgle of an aquarium. > >So off-topic it hurts, > >Aaron >

26 years, 7 months

1
0
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SWTPC 8k Basic / Vintage Software Policy

by doug＠sontek.com

Hello all, I have been watching this list for some time now and have enjoyed the enthusiasm with which people pursue the preservation of the classic machines. My personal project has been restoring a SWTPC 6800 to satisfy my nostalgic needs and I have gotten it up and running solidly. The next step for me in this quest is to locate a copy of the BASIC interpreter I used back then - SWTPC's 8k BASIC. I am willing to take it in any format (i.e. cassette tape, paper listing, disk file, paper tape, ...). Any help along these lines would be greatly appreciated. This brings me to a related second question. What is the consensus on copyright policy for vintage software. I am happy to pay for the software I acquire, but it's obviously more complicated with software written 20+ years ago. Any advice on this would be appreciated and I apologize if this topic has been covered before. Doug Peckham dpeckham(a)ucsd.edu

26 years, 7 months

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