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

by alhartman＠yahoo.com

I've heard John Oliger's stuff is quite good. A friend had his TS-1000 all tricked out with a John Oliger Disk Interface, Parallel Port, Color Graphics Interface, Joystick Interface and more... It cost more than an IBM XT did at that time. We used to tease him about the "Tail Wagging the dog". But, he was quite happy with it all. When I worked for Zebra Systems, we were going to carry John's stuff. We went out of the Timex Market before that happened though. Al > From: "Glen Goodwin" <acme(a)gbronline.com> > Subject: TS2068 disk interface (was Re: cctalk > > Hello Al -- > > ----- Original Message ----- > From: "Al Hartman" <alhartman(a)yahoo.com> > > > What controller are you using on the TS2068? > > > Just curious... > > > - Al > > I use the John Oliger (JLO) interface. It supports > two DSDD 5.25" and/or 3.5" drives in any > combination and has proven to be very reliable. It > also does *not* use the TS2068 cartridge port, so > that port is still available for other circuitry. > > Additionally, the John Oliger Co. is still in > business and still sells and supports this > interface which was originally introduced in 1984. > > Glen __________________________________ Do you Yahoo!? Yahoo! Photos: High-quality 4x6 digital prints for 25¢ http://photos.yahoo.com/ph/print_splash

21 years, 11 months

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Documation M600 or M1000 for sale?

by vcf＠siconic.com

Has anyone got a Documation M600 or M1000 that they'd like to sell? I have a potential buyer. Let me know... -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years, 11 months

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Time article about Jobs

by aek＠spies.com

> My recollection may be off, but this is straight from Woz, Al. Woz is a nice guy, but after his plane crash / amnesia there is a lot that he doesn't remember. The story came from Al Alcorn who had to fix the unshippable mess that Woz created. I had wondered about the story about a year ago, while Al and I were going through some of the old Atari documentation that he still has, and I made a point of asking him EXACTLY why they couldn't ship what Woz had built. The specific part of the circuit is the on screen score circuit. There is a fairly complicated glob of gates there around a seven segment decoder IC which HP had reduced to a single IC. Woz had used that part in the proto that he built. Atari had to replace it with conventional logic. They knew EXACTLY what he had built, they just couldn't put it into production using the parts they could buy.

21 years, 11 months

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Weird items on VCM

by aek＠spies.com

I can't find any reference to a Dumbkoff 1 orDumbkoff anything else computer related -- Point Plot Intercept would be Whirlwind/SAGE related.

21 years, 11 months

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Byte Sieve of Eratosthenes Results?

by dave04a＠dunfield.com

At 12:31 22/04/2004 -0500, you wrote: >All, > A question: I wondered if results from the Byte Sieve of >Eratosthenes "benchmark" are publicly available anywhere, or if I >have to root out a copy of Byte Magazine? I googled for it, and found >nice C and Forth versions at > >http://home.iae.nl/users/mhx/nsieve.html > >and *some* results, but I'd sort of like to re-read the original >article and see what the results for all of the classic computers >they tested were. > The above URL cites Byte, Sept. 1981, pp. 180, and Jan. 1983, >pp. 283. Copyright law being what it is, I assume the articles are >still Byte magazine IP, but I'd think they could gain a fair amount >of publicity from having that article posted somewhere as a "teaser", >particularly if they link to some of the url's showing modern machine >performance. Can't find such a pointer on their site, >http://www.byte.com however. And the site itself is not encouraging. >-- > - Mark > 210-522-6025, page 888-733-0967 Hi Mark, I happen to have an August 1983 BYTE magazine in front of me, which has an artical entitled "Comparing C Compilers for CP/M-86" in which they use the Sieve as one of their main benchmarks. They are testing Williams, Desmet, Lattice, Computer Innovations and Digital Research tools. The artical is fairly long - about 13 pages. If this is of interest to you, I could scan it and put it somewhere where you can get it. Btw, this particular issue (Aug 83) is entitled "The C Language", and has a lot of good material in it: Theres also a comparison of 5 CPM/80 compilers which also uses the Sieve as one of the main benchmarks, There's alse a comparison of 9 PC/DOS compilers, but I don't think (from cursory re-read) that they use the Sieve in that one. On top of that, there's an artical by Steve Johnston and Brian Kernighan describing a lot of the design philosophy and early experiences, a couple of general "into to C" type articals, and artical on C in unix systems, A C bibliography, an artical on C compatibility issues between Unix and CP/M and a bunch more - really a good issue (which is why it's one of the few I've kept). Don't think I want to scan the whole thing (unless you want to wait a *LONG* time) - but I will do what I can to get any parts you are interested in to you. Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

21 years, 11 months

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Help Price for a NEC PC-9800 series

by jrkeys＠concentric.net

Need a value for a NEC 9801/VX desktop computer a Japanese model with manual and 250 floppy diskette (all in Japanese). Also has keyboard and box with a new harddrive in it. Any help would be great and thanks for your time.

21 years, 11 months

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Available: DEC LA120 printer

by msokolov＠ivan.Harhan.ORG

R. D. Davis <rdd(a)rddavis.org> wrote: > Just for show and tell? Why not for useful functionality? That's exactly my point. MS

21 years, 11 months

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Time article about Jobs

by MTPro＠aol.com

In a message dated 4/22/2004 1:00:38 PM Eastern Daylight Time, cctalk-request(a)classiccmp.org writes: > > Time Magazines calls him "the force behind the > Macintosh"... I wonder what Jef Raskin would make of > that comment. Though it is true that Jef Raskin started the Macintosh project at Apple in 1979, his Macintosh was to be an 8-bit utilitarian machine. It would have had a bit-mapped screen, but no GUI or a mouse at all. Jef Raskin has always been very devout in user interface which promotes keeping your hands on the keyboard. His 1987 Canon Cat is more along the lines of what Raskin's Mac would have been. Raskin simply gave Jobs an easy existing platform "vehicle" to take over, when Jobs was denied control of the much touted Lisa project. Raskin left Apple in 1982 after Jobs took over (but I think he still signed the Mac inside case - anyone?). Jobs wanted to out "Lisa" the Lisa project, and so the Macintosh quickly went from a $500 consumer computer, to $1000, to $1500 and finally to $1995 - that is before Sculley thought it should be $2500 minimally (thus was born Apple's outrageous profit margin on Macs). Jobs certainly does deserve a huge amount of credit, however wrong he might have treated anyone, for his pure force of will in the creation of the Mac as we knew/know. He forced some design decisions which were wrong and Apple paid for (closed architecture, etc.), but he was 90% on overall (appliance design, one button mouse). His direction with Apple in the last 6 years has been mostly very good. Apple's stock is steadily rising now. The Mac consumer market remains at about 6% in the US, but their server (OS X) market is growing big-time. The Mac OS is excellent. I still love to set up my cube and run NeXTSTEP 3.3, which I now understand a lot better. Here are some recent opinions of Jef Raskin's about the Mac: http://www.macminute.com/2004/02/11/jeffraskin Best, David, classiccomputing.com

21 years, 11 months

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Weird items on VCM

by wacarder＠usit.net

I can't find any reference to a Dumbkoff 1 orDumbkoff anything else computer related, although I did find the word "Dumbkoff" used to mean "idiot" or "someone stupid". I did find reference to the Remington-Rand 256 bit tube. Check this out: http://www.feb-patrimoine.com/Histoire/english/information_technology/inform ation_technology_2.htm - Ashley > ----- Original Message ----- > From: "Vintage Computer Festival" <vcf(a)siconic.com> > To: "Classic Computers Mailing List" <cctalk(a)classiccmp.org> > Sent: Thursday, April 22, 2004 2:33 PM > Subject: Weird items on VCM > > > > > > Someone just posted some odd items on the VCM. Anyone have any > > information on the MIT "Dumbkoff 1"? > > > > http://marketplace.vintage.org/view.cfm?ad=608 > > > > >From the same seller, a Remington-Rand Selectron 256 bit Memory Tube: > > > > http://marketplace.vintage.org/view.cfm?ad=607 > > > > -- > > > > Sellam Ismail Vintage Computer > Festival > > -------------------------------------------------------------------------- > ---- > > International Man of Intrigue and Danger > http://www.vintage.org > > > > [ Old computing resources for business || Buy/Sell/Trade Vintage > mputers ] > > [ and academia at www.VintageTech.com || at > http://marketplace.vintage.org ] > > >

21 years, 11 months

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TI Bubble Memory?

by yakowenk＠yahoo.com

Just some useless info, FWIW. All this recent talk of bubble memories got me to remembering.... A company I worked for in Buffalo NY around 1982 was putting bubble memories into a small diskless machine that they sold (or rented?) to golf-course pro shops. It was called a "handicaputer" - it kept track of golfer's scores and handicaps and such. No idea how many were made, but my impression is not very many. But it might be something to watch for, for anyone into bubbles. We also had, IIRC, an SS-30 card (SWTPC I/O bus) with a bubble memory on it, for which I hacked Flex "disk" drivers. (Somebody else had already written the lower-level bubble read/write code.) At one point it booted into Flex. Might have been called "disk-bub" or "flex-bub" or something similar. Sold only a handful though. Really cool but probably too expensive unless you really needed bubbles for some reason. One went to some research station in Alaska (or Antarctica?) - they said disk drives would have frozen up. Bill. __________________________________ Do you Yahoo!? Yahoo! Photos: High-quality 4x6 digital prints for 25¢ http://photos.yahoo.com/ph/print_splash

21 years, 11 months

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Available: DEC LA120 printer

by mcwright＠laca.org

Do you still have the DEC LA120 printer? If so, do you have any idea what shipping would cost?

21 years, 11 months

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EC-1

by effectivehcps＠bellsouth.net

Dwight, I ran across your posting about the EC-1. I am afraid I go back to the EC-1 period and used hybrid analog-very early digital computers at North American in the early 60s. I wondered if you knew of a source for a fairly good condition EC-1? I just purchased one and am in the process of getting it to work again. But would like to have a second unit to share parts with, etc. Hope this gets to you. Thanks. Larry Royster.

21 years, 11 months

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Still looking for some manuals ($$$)

by vcf＠siconic.com

I've still got a bounty out on the documentation for the following products (circa 1990-1991): Probe X (from the Strategic Software Group) HP GlancePlus HP PerfView HP OpenView IBM Tivoli IBM Netview Please contact me if you've got anything. Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years, 11 months

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Byte Sieve of Eratosthenes Results?

by mtapley＠swri.edu

All, A question: I wondered if results from the Byte Sieve of Eratosthenes "benchmark" are publicly available anywhere, or if I have to root out a copy of Byte Magazine? I googled for it, and found nice C and Forth versions at http://home.iae.nl/users/mhx/nsieve.html and *some* results, but I'd sort of like to re-read the original article and see what the results for all of the classic computers they tested were. The above URL cites Byte, Sept. 1981, pp. 180, and Jan. 1983, pp. 283. Copyright law being what it is, I assume the articles are still Byte magazine IP, but I'd think they could gain a fair amount of publicity from having that article posted somewhere as a "teaser", particularly if they link to some of the url's showing modern machine performance. Can't find such a pointer on their site, http://www.byte.com however. And the site itself is not encouraging. -- - Mark 210-522-6025, page 888-733-0967

21 years, 11 months

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New find; HP HyperViper

by rigdonj＠cfl.rr.com

Today I finally had a chance to check out a PC that I found a few weeks ago. I had picked it up becuase it had an HP-IB connector on one of the expansion cards. When I looked closer I saw that the card had a sticker marked "HP 82324". Bingo! That's the part number of the souped-up Measurement Coprocessor card that's commonly called a HyperViper! I have a number of Viper cards with 68000 CPUs but I'd never even seen a HyperViper card. The HyperViper uses a 16MHz 68030 CPU. The Vipers and HyperVipers are HP 9000 series 200 or series 300 computers on a board. You install them in a PC and run a driver and it switches over to the 680xx CPU and runs (almost!) exactly like HP 9000 computer. It has a built-in HP-IB port and supports additional HP-IB cards. It also mounts a HP 9000 file system in one file on the PCs hard drive. It uses the PC's parallel and serial ports and uses the PC's keybaord and monitor for user I/O. Anyway today I opened it up and cleaned all the dirt and insects out and fired it up. It booted to DOS then loaded the HP software then switched over to the HyperViper card and booted HP BASIC version 6.2 (Rocky Mountain BASIC) without a hitch. Wahoo! I'm in business now! It even has the last version (D.00.00) of the HP divers. HP's Viper and HyperViper site >> <http://ftp.agilent.com/pub/mpusup/pc/old/vp_over.html#m5> Joe

21 years, 11 months

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Selectric Terminal

by brian＠quarterbyte.com

I have one of the these too. They were standard IBM IO Selectrics, modified electrically for what appears to be use on a military aircraft. I'm planning on building a serial or USB interface for it so I can use it as a remote terminal for my IBM 1130 simulator. I've gathered a lot of information about it including the connector, signals etc. If you're interested, let me know and I'll send you what I have. These machines being sold on eBay, by the way, are in wonderful shape mechanically but most likely have a shorted or open control soleloid. Brian

21 years, 11 months

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Got that INS8073 SBC to respond!

by dickset＠amanda.spole.gov

Thanks to all who sent me copies of that MM58174A app note. I'm not quite to the stage of using the contents, but it's nice to have. I do have scans of the board that I intend to put up on my website, in the meantime, I have been tracing the board and have puzzled out the 10 pin connector - it's power, gnd, battery-backup for the 6114 and MM58174A, serial in/out, and three of the I/O bits (SB, F2, F3) on the CPU. I have raided the local electronics scrap bin (we have to sort our waste into numerous categories from "burnables" to "food waste" to "light metal", etc., including "electronic scrap") for the connector off of a dead CD-R drive, mounted the power connector and the audio/master-slave connector to a piece of perfboard, and constructed a daughter card that gives me easy-to-plug-into access to the signals that the board needs, and, ta-da, I just got a '>' prompt from its Tiny Basic. At the moment, I haven't puzzled enough out to enter programs (I get an "ERROR 1" - Out of Memory), but I can write statements in immediate mode and see the results (FOR loops, PRINTs, etc.). If I pull its 6116, I don't get a prompt, so I don't think it's a problem with the SRAM, but "PRINT TOP" gives me -32768 rather than an expected 4353 or similar number. So one thing I'm going to do with this is to change its baud rate from 110 bps to the max of 4800... After that, who knows. I could use an enclosure for it. For something out of my junk drawer, it's pretty cool. I'm going to write to the guy who gave it to me to see if he knows what it was used for. I used to have access to an RB5X when I worked at COSI. Now, at least, I can play around in its environment. Somewhere at home, I have a backup of our robot disk. I'll have to see if I've brought an image of that in my C-64 directory. Let me recommend the INS8073 for anyone who wants that late-70s/early-80s BASIC experience in a bread-board computer. I think you could put one together on a single (large) breadboard slab. You'd need 40 pins for the CPU, another 24 to 32 pins for the SRAM, and some sort of RS-232 level shifter, like a MAX-232. The rest is all caps and resistors. -ethan -- Ethan Dicks, A-130-S Current South Pole Weather at 21-Apr-2004 23:40 Z South Pole Station PSC 468 Box 400 Temp -81.4 F (-63.0 C) Windchill -113.3 F (-80.7 C) APO AP 96598 Wind 7.2 kts Grid 059 Barometer 687.1 mb (10361. ft) Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html

21 years, 11 months

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On-Topic digital camera (was Re: Camera's are off topic!)

by cb＠mythtech.net

>I was SOL with Linux - I had to fire up a 68K Mac (there is no installer >for PPC) _just_ to dump the camera and convert the QT-encoded PICTs to >JPGs. I did use GC, but it wasn't my first choice - I'd rather use a >Perl script. First you should have been able to install on a PPC anyway. 2nd, I'm pretty sure I have a PPC disk for the QT100 install. And even if I don't, I have only ever used my 100 on a PPC, so I know the software installs and runs just fine on a PPC running OS 9.1 If you want me to pull out my disks and check, and send to you anything I have, just let me know. The 100 and 150 software I think is the same, as the only real difference between them was the 150 has more memory and an attachable macro lens (the 100 could even be upgraded to a 150 if you wanted to pay Apple's price to do it) -chris <http://www.mythtech.net>

21 years, 11 months

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DEC VR241-A color monitor in Germany available !

by cheri-post＠web.de

> For a rough test, set the switches on the back to 'Internal sync' and > 'Terminated' (they'll be set like this if it was used on a 'Bow) and then > feed a composite mono signal into the green BNC socket. 'Internal Sync' > is sync-on-green, of coruse. > > If yoy get a green image on the screen, then the monitor is basically > working. You could still have a problem with the red or blue video > amplifiers, but theyr'e not hard to fix (unlike the horrible > PSU/horizontal deflection system -- I still shudder when I remember that > schematic!). > > -tony Thanks alot for your hints Tony and Paul, I'll give it a try at home. Pierre _______________________________________________________________________ ... and the winner is... WEB.DE FreeMail! - Deutschlands beste E-Mail ist zum 39. Mal Testsieger (PC Praxis 03/04) http://f.web.de/?mc=021191

21 years, 11 months

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Dead Mac IIfx

by witchy＠binarydinosaurs.co.uk

Hi folks, After getting a nubus ethernet card and a radius 24bit accelerator I thought I'd dig out my olde IIfx......trouble is it's refusing to power up even with different keyboards/known good PRAM batteries. It worked when I got it a couple of years ago; I even treated it to knew batteries, so anyone know of any instant fixes for dead machines? I'm going to steal the PSU from my other Mac II and see if it makes a difference....I know they're the same apart from the IIfx one has a variable speed fan. Cheers, -- Adrian/Witchy Owner & Webmaster, Binary Dinosaurs www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

21 years, 11 months

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Ebay Heartbreak (was: ebay shenanigans)

by Innfogra＠aol.com

Looks to me that the guy has a high volume of scrap go through his place, or he has access to a scrapper. A lot of his sales are chips that he sells through the vintage listing. Looks like he completes less than 10 percent of his sales. Mostly due to high prices. I am surprised at the price of Gold Scrap though. He first started off trying to sell 10 pounds of fingers. After a couple of times he dropped it to 2 pounds at a time. Sold one for $99. He seems to think scrap is worth $49 a pound. Most scrappers have found that they should list it under Gold Bullion not antiques. I sold off about 4 pounds of old pentium processors and, surprisingly, got nearly $36 a pound, which I thought was higher than the scrap value???????? Paxton, Astoria

21 years, 11 months

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Trouble getting IRIX 3.3 instaled.

by jkunz＠unixag-kl.fh-kl.de

Hi. I am trying to install IRIX 3.3 on a PI 4D35. I have distribution tapes and a 4D35 support tape as distcp(1M) images on disk. I created tapes >from this images with distcp(1M) on IRIX 4.0.5. I can boot the standalone tools from the 4D35 support tape. But I can't install anything. I get allways: Reading product descriptor from <where ever>: Can't read product descriptor. <where ever> is the tape device or the disk directory. When I had problems with the tapes I mounted the IRIX 4.0.5 disk by hand and pointed the install system to it with the "from" command. Same result: "Can't read product descriptor." Whats wrong here? -- tsch??, Jochen Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/

21 years, 11 months

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AN/GSO-221

by ken＠seefried.com

Oddly compelling auction: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=4125610204& rd=1 Anyone know exactly what he's got? Ken

21 years, 11 months

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Camera's are off topic!

by jwest＠classiccmp.org

TSIA, thanks! Jay --- [This E-mail scanned for viruses by Declude Virus]

21 years, 11 months

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IBM 360 corestack on eBay

by jpl15＠panix.com

Supposed to be from a 360: seller has several of these of varying sizes and prices - this particular one starts bidding at $300, or y'all can buy-it-now for the special price of - - - $350. wowsers. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=4124997669… Cheerz John

21 years, 11 months

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On-Topic digital camera (was Re: Camera's are off topic!)

by cb＠mythtech.net

> You can't even view the >pictures in their native format unless you've loaded the camera software; >they are PICTs, but the data segment of the PICT file is compressed >in a non-standard way, meaning that even Linux tools that know what >a PICT is can only describe the contents of the picture file from a >structural standpoint. Makes automating certain operations impossible. I'll try to remember to play with my QT100 tomorrow, but I *think* GraphicConverter can deal with the native format. I'm not sure if you need the QT software installed (possibly, and then GC just uses the hooks enabled via the QT extensions), but even if that is so, GC has some half way decent automation abilities, so you may be able to use it to automate your jobs. If it can read them, you may be able to ask the author (Lemke Software) how he did it and that may help with a Linux tool (unless he requires the QT extensions, then you are just SOL for Linux) -chris <http://www.mythtech.net>

21 years, 11 months

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On-Topic digital camera (was Re: Camera's are off topic!)

by cb＠mythtech.net

>I've been playing ZeroGravity, this System 6 game I played to death on my >best friend's dad's Mac Plus, on this dual G4, and other than the fact the >sound doesn't work (not too surprising), the game plays 100%. In fact, >even though I played it on an 8MHz 68000, on twin 1.25GHz G4s, the game >is still at a playable speed (a nice bonus, but seemingly paradoxical). I tried Iggy Iggopolis the other day, ran WAY to fast to be usable. You can't even control Iggy, he just gets stuck in the corner... and the games timer runs out in about 10 seconds. I'd planned to try vMac to emulate a Mac Plus and see if it was better. I don't know if vMac tries to duplicate the speed of a 68k mac, or if it will try to run as fast as it can. I'd guess since ZeroGravity plays at the same speed, that's proof of decent programming. The author didn't depend on the slowness of the processor to regulate the game speed. Capt Magneto is also still mostly playable (no MacInTalk speech, but other sounds are all fine). The only problem with it is trying to fight enemies... the attack power counter goes so fast you can't even hope to use skill to get a high value, its just click and hope for a good number. -chris <http://www.mythtech.net>

21 years, 11 months

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Dead Mac IIfx

by cb＠mythtech.net

>> On some Macs, there is a 'CUDA' switch (no idea what CUDA stands for... >> anyone know?). Its a little tiny push buttin switch on the logic board. > >Actually, I don't think Cuda stands for anything -- I've only ever seen it >written "Cuda" in Apple tech documentations (and all their other acronyms >are usually capped, so I assume this isn't an acronym). Humm... could very well be. I'll have to keep a better eye out for how its written in Apple tech notes (I know I've never seen a definition for it, but I can't say I've paid too much attention to it being CUDA, Cuda or cuda) -chris <http://www.mythtech.net>

21 years, 11 months

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Ton of *free* DEC stuff

by kdavis＠ndx.net

I'm moving and will only have room for one small system so I need to give away some things. I have a bunch of stuff that I got from a company that used to make Q-Bus cards. Here some of the stuff I is going: Boards Q-Bus and some U-Bus Manuals VAX, PDP. Some print sets Cables (Cabkits, Serial, drive, network, etc) Media (Mag & Mini tape, disks) Software (lots of dec stuff including several Distros) TK & SCSI Drives Various cabinet parts, rails, hardware, etc Hard drives (5.25 ESDI & ST506) Some Apple & Atari stuff Nothing larger than a BA23, most of the stuff is in boxes. Looking at about 15-20 boxes. *** This is local pickup only *** Preference give to someone that will take it all at once :-) Kirk

21 years, 11 months

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Dead Mac IIfx

by cb＠mythtech.net

>This is really nice to know. I tried bringing a few Mac II's to life to >no avail a few months back. I figured there had to be a trick because >they could not ALL have been dead. Many Macs get stuck when the PRAM battery is dead or dying. Some won't do anything, some will start but not boot (power on, spin up the drives, and just hang at the grey self test screen), some will boot but you will get no video... and some will just act plain wonky. On some Macs, there is a 'CUDA' switch (no idea what CUDA stands for... anyone know?). Its a little tiny push buttin switch on the logic board. Pressing that switch will do a deap PRAM reset, which will usually cure the dead battery issue (although if the battery doesn't get replaced, the issue will come back eventually). This can be done in place of removing the battery for 24 hours (but not all Macs have the CUDA switch, so some you are just stuck pulling the battery). -chris <http://www.mythtech.net>

21 years, 11 months

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ebay shenanigans

by mross666＠hotmail.com

There's a pdp-8/e & TU56 on ebay... seller is starting bids at $1999.95 (!) Some funny bidding... there WERE two bids, one from Al Kossow, but both now cancelled due to 'entered wrong bid amount'... http://offer.ebay.com/ws3/eBayISAPI.dll?ViewBids&item=3091261329 Not sure I like the smell of that... Mike http://www.corestore.org _________________________________________________________________ >From must-see cities to the best beaches, plan a getaway with the Spring Travel Guide! http://special.msn.com/local/springtravel.armx

21 years, 11 months

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Slightly OT: Ethics

by pete＠dunnington.u-net.com

On Apr 21, 16:33, Torquil MacCorkle, III wrote: > > True, and there's another factor: SGI's licence for the software on > > those CDs prohibits them being passed on to another person except when > > transferred with a machine licensed to use them. SGI have occasionally > > been known to get shirty about that. > > I thought that since all SGI's originally came with IRIX, all of them had > the rights to use IRIX so transfer of media was okay? Seems I have been > mistaken, I guess I will keep the CDs afterall. Not necessarily. Each machine has the right to use the latest version that was supplied for that individual machine (ie, that serial number). As far as I understand it, if you had, say, an Indy that originally came with IRIX 5.3, and had a support contract that entitled you to upgrades through IRIX 6.2 to IRIX 6.5, you could pass on the 6.5 CDs you got, along with the Indy. But if you didn't have a support contract, and SGI didn't supply you with 6.5 specifically for that Indy, then that Indy would only be entitled to run 5.3. Ditto for an O2 that originally came with 6.3 and never had a maintenance contract that entitled it to an upgrade to 6.5. You could buy the upgrade separately, and that would include a right-to-use, but the cheapest way to buy 6.5 from SGI is to buy a support contract :-) At least SGI's licences transfer with the machine, unlike DEC's. -- Pete Peter Turnbull Network Manager University of York

21 years, 11 months

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DEC VR241-A color monitor in Germany available !

by cheri-post＠web.de

Hello all ! If anyone needs a VR241-A monitor...I can get one for free. It's located in Darmstadt (Germany). The institute will throw it away if nobody is interested. Unfortunately, I can't test it 'cause I do not have a DEC Rainbow. Just send me an email: cheri-post at web.de Cheers Pierre _____________________________________________________________________ Der WEB.DE Virenschutz schuetzt Ihr Postfach vor dem Wurm Netsky.A-P! Kostenfrei fuer alle FreeMail Nutzer. http://f.web.de/?mc=021157

21 years, 11 months

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Looking for Atari SC1224 monitor schematic

by dave04a＠dunfield.com

At 05:26 21/04/2004 +0100, you wrote: >> Hi Tony, >> >> It would appear that you are correct. Once I removed the cover, I could clearly >> tell that the "chirp" is coming from the switching power supply. There appears >> to be no activity from the rest of the monitor, including the fact that even >> with the lights off, I could not observe filaments lighting. The power LED does > >It's not unheard-of for the CRT heater to run off the flyback >transformer. So if the horizontal output stage is dead, there will be no >heater glow. > >> light, however it's fairly dim - I don't know how brightly it would normally >> light. >> >> The final filter capacitor in the supply is rated at 180v DC. I powered the >> supply briefly under no-load and the output rose to 140v. With all the >> connections in place, it is producing about 55v - I have no idea what the >> normal requirements of the monitor are. > >I would guess around twice that voltage at least. Does the PSU have one >output or seceral ? Have you checked if any of them are stuck at 0V? Hi Tony, I've located a set of rather poor schematics (can't really read most of the component values), but it did include 10 pages of troubleshooting information. According to this, the filaments do run off a winding on the flyback. The power supply has three outputs, a main one which is supposed to be 115v, and two smaller (thin wires/connectors) which are supposed to be 12v and 14v. Under no load, I'm measuring 140v, 15v and 17v, shich is probably about right. With the monitor connected, I'm reading about 55v on the main supply, I have not measured the other two as I'd have to remove the PSU board and tack on wires, however since it's a single-switcher design, I'd guess that they were proportinally lower as well. I do not see any obvious physical signs of failure (discolored parts, smoke etc). When I get a chance, I'll go thorugh the troubleshooting charts - they list a number of voltage measurements, waveforms and components to check for these symptoms. I'm really hoping I can get it going, as I do not have another color monitor for the ST's. (When I picked it up I thought it was another mono monitor as there is no external adjustment/indication of color and it looks exactly like my SM124 mono monitor - once I opened it I realised it was a color monitor - I guess "SC" means "Color" (vs "SM"=Mono). Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

21 years, 11 months

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Other collecting activities?

by pete＠dunnington.u-net.com

On Apr 19, 23:36, Tony Duell wrote: > I didn;t say that digital cameras have no uses, just that I have no use > for one. I take almost entirely static subjects, and I want high > resolution (to be honest 3.1 M pixels is worse than 35mm (I estimate that > as being about 12M pixles), let alone medium or large format). Hi-res 35mm is probably better than that. Kodachrome certainly is; it can resolve a couple of thousand lines per *millimeter* under ideal conditions. Even fairly conventional fine-grain black-and-white films have been able to manage 1000 lines per mm since the 1940s. That means if you take the full height of a 35mm image, and enough of the width to match the typical aspect ratio of a digital camera (lets say 3:4), the image could resolve the equivalent of 24000 x 32000 = 768M pixels! It's not quite as simple or dramatic as that, of course. It's not just the resolving power of the film that affects the image quality, there are irradiation and halation effects to consider, as well as graininess, lens quality ("the diameter of the circle of confusion" is a phrase I will never forget). On the other hand, there are digital artefacts like edge effects to think about too. Even if you take a normal fine-grain silver halide image, under average conditions, you'd have about 15M pixels (I found that in a few references on the web). That's about 5 times more than a 3.1M pixel digital image -- except they're analogue pixels, in a sense; the size and colour are infinitely variable, not variable in discrete steps. Moreover, 3.1M pixels in the camera aren't 3.1M pixels in the final image. It depends how they're used, but in the camera, you typically need three pixels, one for each of R, G, and B, to get one RGB pixel in the image. Some techniques use even more (the Bayer algorithm uses 4). -- Pete Peter Turnbull Network Manager University of York

21 years, 11 months

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Ebay Heartbreak (was: ebay shenanigans)

by CordaAJ＠NSWC.NAVY.MIL

Every once in a while you win, though... I was at a 2-day hamfest last year and ran across a gentleman selling vacuum tubes, old test gear, etc. for what I considered outrageous prices. Under the table, he had a complete PDP-11/05 sitting with some other stuff. I kinda figured it would be also be overpriced, but when I asked him, his reply (as well as I can remember it) went like this... "Oh that? Thats part of an antique computer... If I had the whole thing, I'd want around $1,200 for it. it's RARE ;-) At this point, I was kind of curious, so I asked if I could look inside. It appeared to be a complete 11/05 with core memory, so I asked what he thought was missing. "It's just the _control head_", he said, "The REAL computer computer itself was MUCH larger that that!" At this point he proceeded to inform me that all computers of this vintage had to take up at least a full equipment rack. (all his companions sitting on the tailgate of his truck nodded and mumbled things like "Trust him, he's an EXPERT"). "Well, how much for just the _control head_?" I asked. "I'll take $35.00, but understand that all sales are final! And that's how I got a fully functional 11/05 for $35.00! 8-) Yep, sometimes the hunt, and the satisfaction of getting a good deal from a greedy self-appointed clueless expert can be worth as much as the find itself! -al- -----Original Message----- From: Joe R. [mailto:rigdonj@cfl.rr.com] Sent: Wednesday, April 21, 2004 10:46 AM To: dancohoe(a)oxford.net; General Discussion: On-Topic and Off-Topic Posts Subject: RE: Ebay Heartbreak (was: ebay shenanigans) At 08:31 AM 4/21/04 -0400, you wrote: >Yesterday I ran across three PDP11/84's in parts at a scrappers (one day too >late). I sorted through the pile of boards and made up a collection >including a lot of heavy backplane sections. The chief arrived back from >lunch and immediately found me to announce that his was prime material and >I'd have to pay at least $5.00 lb. > >I re-organized my collection throwing back what turned out to be PMI memory >boards :-( and a lot of unidentifiable third party items (made by Megadata, >Bohemia NY) to reduce the hit but held onto the somewhat strange 11/84 >backplane with the combination Qbus / Unibus sections. > >When I got to the scales, he saw the backplanes and said they were full of >palladium and for a little he'd take $5 lb, but for a larger quantity, >they'd be more money per lb. I abandoned all of the backplanes at that >point. > >He then pointed out two 11/44's that I'd missed in my search. "What's your >offer", he said, "I was going to list them on Ebay and I expect $400 each". > >I suggested that probably wouldn't happen and offered that I'd bid if he did >put them up for auction rather than make an offer here that was far from his >dream. His response was that he'd scrap them for not much less than that. >I'm not sure what will happen because there's clearly some serious >bargaining going on, however, he's quite adamant about the scrap value and >prepared to throw stuff in the scrap that I won't pay this price for. His >claim is that he actually sends stuff out for custom refining and gets the >recovery value of what he sends. I found that most scrappers are real BS artists! I recently found a big stack of Nova core memory boards. The scrapper swore that they were full of gold and wanted $6/lb for them. The only gold on them was a trace in the card edge connectors. Needless to say I passed on them. They're still sitting there two years later (but they've been in the weather so they're probably ruined by now). Joe > >These valuations really scare me because it'll put the value beyond what I'm >interested in except for a few exceptional pieces. > >Dan > > > >

21 years, 11 months

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Other collecting activities?

by MTPro＠aol.com

I don't take the opportunity enough to engage in much actual discussion on this list, but I would like to. I also rarely get a chance to actually "play" with my keeper collection of computers, which I have recently narrowed down to just "keepers." Anyway, with a busy job, three kids and a house, time is always short, but I do find time to enjoy a couple of other hobbies. I guess after twelve plus years of ravinously reading everything about computer history, and having owned more or less every important old computer at one time or another, my interests are shifting. This doesn't mean that I won't be playing with the collection, but in a more limited way. Gotta get the garage setup finally with some work areas. As for other hobbies, I am mostly doing a lot of reading online, and reading physical books as well. I've recently added to my extensive computer history / collecting library some very nice books about Disney Imagineering, Disney history (Walt and the parks, movies, etc.), and some books on toy collecting. I'm also very interested in sceptical research and debunking of psuedoscience, bad MLM and so-called health related products. But toys have always been a soft-spot for me, which my first computer started off as (C64). My daughter has an Easy Bake oven, and I just got my son a Queasy Bake. We also enjoy the number of sets of Creepy Crawler ovens too, remember those anyone? Anyway, I'm intrigued with the history of cooking toys now and have been looking deeper into that, as well as checking out eBay for such items. My family loves to cook and we're big fans of the Food Network. I have started on the path of the history of cooking toys and the collecting of them. There are many interesting types too: ovens of course (desert baking mostly)pizza oven (Pizza Hut, Dominoes and Chucky Cheese)slushie makersCotten candy makersice cream makersgummy makerschocolate candy makersdrink makers... geez, the journey begins. So, anyone else like to expose any other collecting and/or strange behavior of their own? Ah, the kicker too . . . have their ever been a microcomputer controlled cooking toy? Could their be? Hmmmmm . . . Best, David Greelish, classiccomputing.com

21 years, 11 months

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Weird

by SPEDRAJA＠ono.com

Hello all: Take a moment to visit this place, please: http://newdos.yginfo.net/msdos71/ I did it, downloaded it, installed it in one Pentium III, one Pentium IV and under Bochs. Works. In the Pentium IV case, I can access the NTFS partition. Cheers Sergio

21 years, 11 months

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cctalk Digest, Vol 8, Issue 33

by alhartman＠yahoo.com

> From: "Glen Goodwin" <acme(a)gbronline.com> > Subject: Anyone have a spare RX23? > > A friend called recently and said he was going > through some computer stuff and found a number of > drive enclosures -- did I want any? Since I > never seem to have enough to accomodate all of the\ > small machines I've patched drives into, I > said "sure." When it arrived I was delighted to > find thatthe enclosure was a TK50Z-FA with a couple > of disreputable-looking 5.25" diskette drives in > it. I yanked the drives and installed two > known-good 5.25" DSDDs and now it's attached to my > TS2068 so all is well. Very cool! What controller are you using on the TS2068? Just curious... - Al __________________________________ Do you Yahoo!? Yahoo! Photos: High-quality 4x6 digital prints for 25¢ http://photos.yahoo.com/ph/print_splash

21 years, 11 months

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Apple IIC+ Pointers on getting programs to and from machine.

by dave04a＠dunfield.com

>This may help a bit, not sure if it is for the IIc or not but it is for the >II : > >http://www.oldskool.org/disk2fdi > >there is a trial version for which you need 2 drives and a pay version for 1 >drive. Also there are instructions for a cable you need. I think there's a freeware program called ADT (Apple Disk Transfer?) which does the job with the standard Apple serial card. When I was looking, there were two versions for two different cards. The only card I had at the time was a software bit-bashed card which was not supported and ran at a max of 300bps (perhaps 1200) - obviously that was not going to cut it, so I built my own card (not a standard apple card either :-( ... And wrote simple programs on each end to transfer the images - worked very well. Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector.

21 years, 11 months

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Canon BJIF-3020 serial board users manual?

by dwight.elvey＠amd.com

Hi I assume you already have a serial light/breakout box. One can't even begin to deal with serial without one. I know that Heathkit would do nasty things like invert the status of handshake lines, for their printers. Dwight >From: Hal <hal(a)hal.demon.nl> > >Hello Folks, > >It's not that old, but i am searching for a Canon BJIF-3020 serial board >manual. It's a serial board for in a Canon BJ-300/330 printer. > >Can't get it to work on my Alpha box, so i guess the serial settings of the >printer are incorrect. But i cant find a manual anywhere (have the original >BJ-330 user and programmer manual, but that doesn't provide any solution) > >Thanks! > > >

21 years, 11 months

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3M Tape Drive on eBay

by ken＠seefried.com

Thought this was interesting for no other reason than it was manufactured under the original name of 3M (Minnesota Mining & Manufacturing). Didn't know they made computer gear. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=4125760894& rd=1

21 years, 11 months

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LAPC-1 Cards

by squirechris＠softhome.net

Hey I just found this post; what are the odds your friend still has a LAPC-1 card? Thanks. - - - - MPU-401/LAPC-1 Hans Franke cctech(a)classiccmp.org Thu Jan 9 12:52:45 2003 Previous message: MPU-401 Next message: H89, REMark, Sextant Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] I just taked to my friend. The cards are LAPC-1s. He still has two new units, and he'd be willing to part for 40 Euro each (~42 USD), plus shipping. So if someone still wants to build a early 90s game PC, just drop me a note. Gruss H.

21 years, 11 months

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Slightly OT: Ethics

by pete＠dunnington.u-net.com

On Apr 21, 12:08, Torquil MacCorkle, III wrote: > > Dude, you don't own the disks. You have no right to sell them. True, and there's another factor: SGI's licence for the software on those CDs prohibits them being passed on to another person except when transferred with a machine licensed to use them. SGI have occasionally been known to get shirty about that. > What am I supposed to do if it becomes obvious I am not going to be able to > track the guy down? (which it has, except for the new idea of trying name > lookup directories, I do know his name and his former city and state.) > I appreciate the advice (although it seems I have been > misinterpreted) and hope everyone doesn't think I am some kind of miserable > lying bastard. This was an honest mistake. I realised that from your post. I'd suggest that you take reasonable steps to track down the owner, and if that fails, keep them. If the owner were really desperate to have them back, he'd probably have contacted you (assuming *he* has *your* contact info). Anyway, you might need them yourself, if you get an SGI machine without CDs (like the Octane you mentioned elsewhere). -- Pete Peter Turnbull Network Manager University of York

21 years, 11 months

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Altair Goes for over $8000

by dwight.elvey＠amd.com

>From: steve <gkicomputers(a)yahoo.com> > >--- Keys <jrkeys(a)concentric.net> wrote: >> Can you believe this? >> >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=4123637908 > > >Thats probably a record high, but it did have an >original box, was in great shape, and some good ad >copy didn't hurt. Seems like there were Altairs on >ebay every week for years, then nothing for several >months, pent up demand I guess. > Hi I wonder if the buyer thought that the words, "powers up" means that it is fully functional? All it means is that some LED's came on and there was no smoke. Dwight

21 years, 11 months

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Um, was there a... [Otrona Attache]

by design3d＠fuse.net

Hello, I have been searching for the system disks for the Otrona for a couple of years now. Do you still have these disks? I would appreciate any help you can provide. Regards, Don

21 years, 11 months

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HP 64000 in Kansas City

by mmcfadden＠cmh.edu

One of the precision instrument companies in Kansas City just shipped in some old equipment to the computer surplus. There was a HP64000 with a HP64203A for 8085 module 2 HP 9133 units a Hazeltine 1420 a Tek 4025 Any interest, my garage is full Thanks Mike

21 years, 11 months

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Other collecting activities?

by pete＠dunnington.u-net.com

On Apr 20, 23:53, John Allain wrote: [ Pete wrote ] > > Hi-res 35mm is probably better than that. Kodachrome certainly > > is; it can resolve a couple of thousand lines per *millimeter* under > > ideal conditions. > > Can this be backed up with published information? Good question. I can't find any actual figures on Kodak's website. The figure I used is one I saw in a couple of places on the web, and in some old notes (see LP Clerc, Photography: Theory & Practice, sec.349). I used to be really into photography, and about 30 years ago, and I did a 3-year HND course which included a lot of theory. I've seen references to about 1/10th or even 1/20th of that in various places, too. That seems too low, but there could be several reasons for that. Firstly, it used to be the case that only Kodak would process Kodachrome -- one of the reasons professionals used to use it only for special purposes, preferring Ektachrome because it could be processed locally (and therefore quicker, and with "adjustments"). That's no longer the case, but I don't know if Kodak have changed the process (quite likely) or just made it available to other processors. I do know that professionals could get a different service from Kodak than normal users (because I could, via the college I studied at) and that could make a big difference to the results. We used to reckon a 35mm Kodachrome slide roughly comparable to a 6x6cm Ektachrome. Not that Ektachrome's at all poor: want a good colour print? Take an Ektachrome slide and make a Cibachrome print. Except I don't think you can get Cibachrome any more. The low figures I've seen for Kodachrome have been on pages where it's compared to other colour films, and I think they're suspect, because I don't think they're the result of optimal (or even close) conditions. I'd be prepared to believe that 2000 lines/mm is a theoretical figure based on grain size. If so, that won't be the true figure for a real exposure in a real camera, so I'd take it with a pinch of salt. A "good" lens on a 35mm camera typically has a resolving power no better than 150-200 lines/mm (ref LP Clerc again, and MJ Langford, Advanced Photography). -- Pete Peter Turnbull Network Manager University of York

21 years, 11 months

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Other collecting activities?

by pete＠dunnington.u-net.com

On Apr 21, 9:50, Jochen Kunz wrote: > On Wed, 21 Apr 2004 00:03:36 +0100 (BST) > ard(a)p850ug1.demon.co.uk (Tony Duell) wrote: > > > > Moreover, 3.1M pixels in the camera aren't 3.1M pixels in the final > > > image. It depends how they're used, but in the camera, you > > > typically need three pixels, one for each of R, G, and B, to get one > > > RGB pixel in the image. Some techniques use even more (the Bayer > > > algorithm uses 4). > > Argh!. You mean they fiddle the figures? I'd assumed that a 'pixel' > > was an RGB triad, not a third of one. So you mean you may only get 1 > > million points in the image from a 3.1M pixel camera? > Yes. E.g. with Bayer you have four sub-pixel per color pixel: > R G > G B > So you get 640 x 480 = ca. 0.3 M "true" color pixels with a 1280 x 960 > "Mega pixel" sesor. The image processing firmware of the camera > interpolates this later to 1280 x 960 RGB pixels. Exactly, and that's what my (nasty cheap) digital camera does. Looking at the source for parts of gphoto suggests that's common, so I wouldn't be at all surprised to find it's the norm, even for higher-end cameras. If you were a camera manufacturer, and your competitors claimed 1.3Mpixels, would you be more honest and claim 0.4? But I don't actually know. -- Pete Peter Turnbull Network Manager University of York

21 years, 11 months

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Simple Apple Questions

by sml49＠comcast.net

> To: cctalk(a)classiccmp.org > Message-ID: <20040420032322.648836B19(a)outbox.allstream.net> > Content-Type: text/plain; charset="us-ascii" > Re: Simple Apple Questions >> I have the Apple][ reference manual and a whole pile of other Apple reference >> books and material scanned ... I'd like to make this available, but I have >> not >> done so due to the copyright question - posting a published book which was >> sold >> on it's own merit seems less legit than manuals which came with hardware. > >> Anyone have any thoughts/experiences on this? Seems to me that if the book is out of print and the machine a long-discontinued one that you'd be on safe ground sharing scans of reference material for free. Apple's lawyers, never a shy group, will certainly let you know if they object. I've got a couple of hardbound Apple reference manuals here too - for the ImageWriter LQ and for the LaserWriter II and would be glad to scan portions for anyone needing such info. Seth Lewin

21 years, 11 months

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