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

Floppy controller Q - VCO Inhibit / VCO Sync, and IBM format

by classiccmp＠philpem.me.uk

Hi, I've been playing about with the HDL code for the floppy reader (after a "short break") and started thinking about how the VCO Sync/Inhibit line on the data separator should be driven. At the moment it's driven permanently high; this seems to work OK insofar as the sync detector (which is why the datasep is there -- to extract a clock signal for the MFM data stream) will pick up SYNC-A1 signals and the data seems to be valid. What I don't know is if this is how things are supposed to be done... The uPD765 and 827x datasheets are predictably rather sketchy on this front... All they really say is that the VCO line inhibits the VCO in the PLL, which would have the effect of allowing the PLL's loop filter to discharge, and reset it to a predetermined state. What they don't say is under what conditions the FDC will do that... So I guess the million dollar question is what I should do with said VCO line. Wire it to /INDEX via an inverter to reset the PLL on every rotation? Or just wire it to VCC (VCO enabled) and leave it? Thanks, -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/

18 years, 1 month

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AIX 3.2 Weird Networking Problem

by devonstopps＠gmail.com

Definitely the right netmask, and seems to be the right interface (en0) - although, as a side note, can you explain the difference between this and the et0 interface? No problems with any other system in the building. I've set up many a solaris or linux box with no problems. arp -a shows nothing interesting, just another system I ftp'd into - have tried adding a static entry for the gateway, with no luck: ? (xxx.xx.132.118) at 0:b0:d0:26:7b:5d [ethernet] the netstat -rn (x's added, obviously): Routing tables Destination Gateway Flags Refcnt Use Interface Netmasks: (root node) (0)0 ff00 0 (0)0 ffff ff00 0 (root node) Route Tree for Protocol Family 2: (root node) default xxx.xx.132.1 UG 0 472 en0 127 127.0.0.1 U 50 340667 lo0 xxx.xx.132 xxx.xx.132.191 U 11 1773 en0 (root node) Route Tree for Protocol Family 6: (root node) (root node) T.H.x. Devon

18 years, 1 month

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AIX 3.2 Weird Networking Problem

by devonstopps＠gmail.com

No one has any ideas about this problem? Devon

18 years, 1 month

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DMS 3F Fox portable computer available for sale/adoption...

by summersigh6teen＠comcast.net

Hello; I have a DMS 3F with the original nylon carry bag for computer and keyboard. Bag is damaged but computer is in excellent shape. Unfortunately no software comes with it. It has the Hi-Net LAN built in. This was my first work computer in 1984-5. I don't want to just throw it away. Please contact me if you are interested. Thanks... Carl M. summersigh6teen at comcast.net

18 years, 1 month

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Osborne Vixen prototype?

by tosteve＠yahoo.com

I have this system, but is it an Osborne Vixen prototype or early release? 1. It's all black, instead of white 2. horizontal drives, instead of vertical 3. smaller screen than 'later model' 4. screen says "OCC4 1.01 BIOS - 1984" pictures here: http://members.cox.net/stengel/temp/vixen.html Let me know what you think, know, or think you know.

18 years, 1 month

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Capri: The Rule Breaker

by silent700＠gmail.com

As long as the rule is "no smoking in the machine room:" http://www.archive.org/details/tobacco_jmu03f00

18 years, 1 month

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Capri: The Rule Breaker

by sellam＠vintagetech.com

Wow, there's something very creepy pornographic about that commercial. Nice find, Jason! -- 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 ]

18 years, 1 month

2
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Floating-point numbers (on the Amiga)

by aliensrcooluk＠yahoo.co.uk

Hi, I am trying (and failing) to learn how AMOS Basic (and Amiga's) store floating point numbers. Whilst it is clear that it uses Motorola Fast Floating Point (MFPP) I have been unable to get it to work based on an equation found online (the Amiga RKRM's all say to use the FPP functions in the maths libraries, and also confirm the layout - 24 bit mantissa, 1bit sign, 7bit exponent). Am I doing something wrong with my maths?? Formula: FP result =[(-1)^SIGN] * [2^(EXP - 0x40)] * [MANTISSA / 0x1000000] 0x1000000 = 16,777,216 0x40=64 floating-point variable value=0.5 Binary value of variable=%10000000 00000000 00000000 01000000 Values calculated using formula (above): SIGN=0 (positive) EXPONENT=64 - 64 (bias) = 0 MANTISSA=2.51658 E+07 / 16,777,216 = 1.5 Thus: result = [(-1)^SIGN] * [2^(EXP - 0x40)] * [MANTISSA / 0x1000000] = [(-1)^0]*[2^(0)]*[1.5] = 1*1*1.5 = 1.5! I have uploaded a bitmap image of my maths to my site if it isn't clear from above what I am doing. http://www.geocities.com/aliensrcooluk/public/MFPP_problem.bmp Please help! Andrew B aliensrcooluk at yahoo.co.uk

18 years, 1 month

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vintage IBM board?

by mcguire＠neurotica.com

I just spotted this on eBay. Isn't this a very early (pre-S/360) IBM board? eBay item #230231322529 -Dave -- Dave McGuire Port Charlotte, FL

18 years, 1 month

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wang network cabling and junction boxes Free >. + shipping

by g-wright＠att.net

This is a repost from a week or so Ago.... did not see it go through I have a box of cable and some junction boxes for a Wang system. Free + shipping. located in the Kent, Wa. area Have not seen any CCtalk traffic in my IN box in a week. hope this is working - Jerry g-wright at att.net

18 years, 1 month

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Wang 2200 in Portsmouth, England

by frustum＠pacbell.net

This is a message that I sent out during the classiccmp blackout in early july. I didn't realize at the time that the message wasn't delivered. Here it is again: I received an email today from a gentleman in Portsmouth. He said it was OK to share the message with the list. (begin quote) Hiya im due to pick up a wang 2200 from one of my relatives houses as my grandad has recently passed away and was wondering if you know anyone in the uk either portsmouth or liverpool that might be interested in it. It is a Wang 2200 A which comes with a cassette drive built into the screen/keyboard, a separate CPU, a separate power supply and a separate I/O unit. I have found some manuals. They are a Wang Basic Language Ref Manual, A Wang System 2200 STATS/Engineering General program library & a Matematics general program library. There are also 3 cassette albums each containing about 12 cassettes with various programs and one game. Whether these work or not is unknown. As far as i know it was working before it was put in the loft 12 months ago. Regards malcolm (end quote) I know he would like some money for it, but I'm not sure what his expectations are. I don't think he knows either. :-) It would be hard to set a price on it as these systems appear on ebay rarely, and also he doesn't know whether it is functional. If you are interested, email me and I'll forward his contact information to you (frustum at pacbell.net). I don't want to post his email address for fear of email address bots might pick it up. I don't care if they get mine though. I'll also send along a couple small photos of the system. The 2200 came out in the early 70s and was Wang's first successful general purpose computer. The BASIC interpreter was written in microcode, and systems had from 4KB to 32KB of RAM. You can visit my site, www.wang2200.org, to get more information about this family of computers. Malcolm said that this is a Wang 2200A, which would make it very early, but many of these machines had board upgrades, turning them into later model machines.

18 years, 1 month

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Vintage Computing in San Diego

by wayne.smith＠charter.net

You missed a prime opportunity for double geekdom - Comic-con was this weekend. If you attend Comic-con and VCF in the same year you achieve the rare Geek Half-Slam. I am half way there. > Date: Fri, 25 Jul 2008 14:08:01 -0400 (EDT) > From: Mike Loewen <mloewen at cpumagic.scol.pa.us> > Subject: Vintage Computing in San Diego > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <Pine.LNX.4.64.0807251406370.24856 at cpumagic.scol.pa.us> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > > I'm going to be in San Diego during the 3rd week in > August. Are there > any vintage computing sites worth visiting in the general > area? Surplus > dealers? > > > Mike Loewen mloewen at cpumagic.scol.pa.us > Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/ >

18 years, 1 month

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Best OS for an IBM Butterfly (was: Any ideas on how to clear a BIOS password on a Thinkpad 701C?)

by lproven＠gmail.com

2008/7/25 madodel <madodel at ptdprolog.net>: > Warp should support the 701c. I don't know if the 701c ever came preloaded > with OS/2 though. All the ones I see on eBay have win 3.1 or win95 on them. > But of course you will need the external floppy drive to install it and a > copy of Warp that is on 3.5in floppies. I'll have to get a copy of Warp on > floppies at InfoAge next time I'm there. Or I can build the floppies from > the CD I have here if I can dredge up enough diskettes. Just FYI... I did get Warp 3 working on my Butterfly. I have a SCSI CD-ROM for mine with a PCMCIA SCSI host adaptor; the OS/2 setup disks couldn't see this. I do have a floppy drive, though. So what I did was pull the HD, connect it to a desktop machine, and copy the installation CD to a folder of the same pathname on the HD. The ideal is to have a boot drive, then another partition with the install files on - that way, it /thinks/ it's looking at a CD drive that is [boot drive+1]. I think the way mine was set up was that I had a smallish FAT16 C drive with Win95OSR2 on it, then a logical drive for OS/2, then a 2GB FAT16 data drive to share between them. You need to keep C: in FAT16; the suspend/resume code is part of the BIOS and it reads/writes FAT16 directly, without using an OS. If you use any other filesystem, the BIOS can't read it and you lose suspend/resume. I think it whinges at you each boot, too. This is some 10y ago now - I couldn't swear to it being Warp 3. I think it was. IIRC, it worked OK - it found the PCMCIA slots, it understood power management and sound. However, I never got the screen working. It's only a VGA-res screen but it should run in 32K colours, maybe even truecolour, and it should be able to drive an external monitor at 1024x768 or maybe even 1280x1024. However I could never get OS/2 to recognise the chipset, which is some kind of Cirrus Logic one >from memory. I also tried Linux on mine. Debian was, as ever, a battle, but it did run. SuSE worked fine but was sluggish and barely fit on my ~700M drive. I also ran Win98SE, NT4 and Windows 2000. I cut down Win98 *hard* with 98Lite, removing anything that wasn't absolutely essential, such as Internet Explorer & all the other Internet tools, but it was still notably slower than Win95. A pain since I had to use Laplink to get it on there and it was a slow process. NT4 worked fine and drove both PCMCIA slots, but it can't do plug&play in any useful way and has no power management, so it's not ideal. Win2K worked amazingly well, considering, but was e-x-t-r-e-m-e-l-y slow. I got power management & PnP, but it was unusable. (FWIW, my Butterfly has 40MB RAM, an unofficial upgrade and the max its planar can recognise. I also replaced its HD with first a 700MB and then a 4GB one. The BIOS displayed this as something like a D92MB drive, lapsing into hex as it didn't expect more than 3 digits, but it worked fine, including suspend-to-disk.) In my experience - which was fairly considerable; this was my main notebook from about 1996 to 2000 or 2001 - Win95B is the best OS for the Butterfly. Performance is good, all the hardware works fine, battery life is decent as power management works, and it's easy to get working. There's a few updates to apply - WinSock 2, DUN 1.3, stuff like that - but it's easy enough to get working. You can keep C: small and efficient - <512MB - and have a nice big FAT32 D: for apps and data. IE5.5 works well but Opera was for most purposes better. Suitable apps are MS Office 95, with the 97 import filters, Acrobat 4 or 5, some lightweight email client - maybe Pegasus or Eudora; I used Ameol (www.ameol.com) - and so on. It even has a good stab at running Doom! The main limitations of W95 are actually fairly few. Don't press it hard and it's quite stable. It can only understand 4 IP addresses; I had a NIC and a modem card, plus the internal modem, and also ran the AOL client for international dial-up, and that maxed out my available IPs. (This is why I tried W98, which does not have this limit, but 98 was too much for a 40MB 486.) W95's PnP is flakey; it took me a *lot* of fiddling to find stable combinations of 2 PCMCIA cards and I had to apply various patches and updates concerning the PCMCIA controller chip to get it working. It was often a case of power down, insert 1 specific card in 1 specific slot, power up, then insert 2nd specific card in 2nd specific slot, that sort of thing. In the end, though, I had it working stably and reliably with either 56K dial-up+SCSI or NIC+SCSI, but it was too much hassle for daily use so I mainly just used a single card at a time. It's a *lot* easier to get Win95 running than OS/2, which was a battle, as it all too often is. I plan to resurrect the machine with a new battery, replace its crashed 4GB hard disk (a large heavy book fell on the machine when it was running; the HD died, the laptop was fine) with a CF card in an adaptor, and try to bring it back to life. I may have another bash at OS/2 - it would feel artistically /right/ to run an IBM OS on this classic IBM machine. -- Liam Proven ? Profile: http://www.linkedin.com/in/liamproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AOL/AIM/iChat: liamproven at aol.com ? MSN/Messenger: lproven at hotmail.com Yahoo: liamproven at yahoo.co.uk ? Skype: liamproven ? ICQ: 73187508

18 years, 1 month

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VERY Old RDB Manuals (V2.3) wanted!

by hoelscher-kirchbrak＠freenet.de

RDB V2.3 (or any other Version 2.x or 3.x) manuals wanted to borrow, buy oder trade for hobbyist use. Genuine manuals, copies or files (pdf/tiff/...), anything is welcome! Regards Ulli

18 years, 1 month

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Apple 1 Obtronix

by us21090＠yahoo.com

The next step in my evil plan... For various reasons I'm selling my Apple 1 Reproduction from Obtronix. Ebay auction: 290247234821 , ie, http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&&item=290247234821 Scott

18 years, 1 month

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Looking for final rev IBM PC/AT roms.

by jzg22＠drexel.edu

cctech-request at classiccmp.org wrote: > Go to: > > http://members.dodo.com.au/~slappanel555/bios.htm > > mike The PC 5150 revision 2 (10/19/81) dump on that site is bad (first few bytes are correct but the rest is garbage?). I have a good copy here (thanks, Jim Leonard and billdeg from http://www.vintagecomputer.net/ ) though I don't have the proper chip numbers from it. Speaking of AT 5170, if the rtc clock crystal from an AT is missing/cut off, will it boot at all, or will the RTC chip hold the PIT (and CPU) in reset forever? -- Jonathan Gevaryahu jgevaryahu(@t)hotmail(d0t)com jzg22(@t)drexel(d0t)edu

18 years, 1 month

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Scientists decry Bletchley Park's decline | The Register

by gstreet＠indy.net

I went to the Bletchly Park website and tried to make a small donation (even though I realize the USD only half the value of the Pound). After attempting to create an account, they were supposed to email me a password so I could properly login. I'm not sure why they've not yet send a password, since it did not seem to indicate that folks outside of Britian could not contribute. I can only hope that so many are trying to donate that it's overloaded their servers -- but I'm sure that's a pipe dream... It would at least be nice for the Yanks to show their support. Regards, Robert Greenstreet

18 years, 1 month

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IBM System 360 Mod 70 info

by aek＠bitsavers.org

> I came across this press release in the computerhistory.org archive. > any assistance in determining the Who, Where, and When of this photo will be appreciated. http://archive.computerhistory.org/resources/still-image/IBM/IBM_360/IBM.36… Fred Brooks press photo from the 360 product intro.

18 years, 1 month

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Looking for final rev IBM PC/AT roms

by dm561＠torfree.net

---------Original Message: Date: Thu, 24 Jul 2008 15:25:21 -0500 (CDT) From: Julian Wolfe <fireflyst at earthlink.net> Subject: Looking for final rev IBM PC/AT roms. Hi, I have a PC/AT that I believe the ROM BIOS has gone bad in. Does anyone here have the final rev (November 1985?) BIOS ROM image around that I can use to check my ROM against and/or burn another copy if need be? I use this machine on a constant basis so to have it running again would be a real boon. Thanks Julian ************* Go to: http://members.dodo.com.au/~slappanel555/bios.htm mike

18 years, 1 month

5
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Anybody know details on this diode matrix patch panel?

by broswell＠syssrc.com

Hello all, I have an old memory patch panel, probably a diode matrix. Estimated to be from the early 60's, maybe IBM? Pictures are at http://i36.tinypic.com/29paqfb.jpg http://i37.tinypic.com/2h6tzd5.jpg http://i34.tinypic.com/51wl6h.jpg I have 3 kinds of diode plugs that fit in the sockets It has white plugs with one type of diode in it. It has brown plugs with a different type of diode in it It has grey plugs that will be a short. So it appears that each location can have one of four values open, short, diode1 or diode2. I am interested to find out more about this - any information such as documentation, model, or what it belonged to would be helpful. Thanks! Bob Roswell broswell at syssrc.com Bob Roswell System Source broswell at syssrc.com (410) 771-5544 ext 4336

18 years, 1 month

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Old data books online

by aek＠bitsavers.org

leeched from bitsavers

18 years, 1 month

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Any ideas on how to clear a BIOS password on a Thinkpad 701C?

by madodel＠ptdprolog.net

I'm trying to get a TP 701c I bought off of eBay working to install OS/2 Warp on. But it has a password set in the BIOS. According to the service manual ftp://ftp.software.ibm.com/pc/pccbbs/mobiles/tpvol2.pdf there are two Power-On Password Bypass Pads on the bottom of the lower system board, but no instructions on what to do with them. Do I need to short them out? If so how? Someone else suggested desoldering the backup battery, but if I can just short two pads, that would be preferred. Right now its completely disassembled. I have two other 701c machines, but they each have their own problems. Worse case if I can't clear the password I can try to take the display off this one and put it on the 701c that has a display problem. Mark

18 years, 1 month

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Looking for final rev IBM PC/AT roms

by dm561＠torfree.net

ISP trouble; sorry if this is duplicated. mike ---------Original Message: Date: Thu, 24 Jul 2008 15:25:21 -0500 (CDT) From: Julian Wolfe <fireflyst at earthlink.net> Subject: Looking for final rev IBM PC/AT roms. Hi, I have a PC/AT that I believe the ROM BIOS has gone bad in. Does anyone here have the final rev (November 1985?) BIOS ROM image around that I can use to check my ROM against and/or burn another copy if need be? I use this machine on a constant basis so to have it running again would be a real boon. Thanks Julian ************* Go to: http://members.dodo.com.au/~slappanel555/bios.htm mike

18 years, 1 month

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Scientists decry Bletchley Park's decline | The Register

by woyciesjes＠sbcglobal.net

Demand government action to save Station X http://www.theregister.co.uk/2008/07/24/bletchley_park_appeal/ -- --- Dave Woyciesjes --- ICQ# 905818 --- AIM - woyciesjes "From there to here, >From here to there, Funny things are everywhere." --- Dr. Seuss

18 years, 1 month

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Alphas available

by ggs＠shiresoft.com

Hi, I have a number DS20s (~16) and DS40s (~8) plus (new style & old style) DEC storage arrays with 9GB drives (total > 1TB). Free for pickup in San Jose (ie you come by my storage unit and haul off what you want...sorry no shipping and no delivery). Any of it that's left after 8/23 will be scrapped. They were pulled working years ago, but they've been moved a couple of times so I don't know the actual operating condition. I also don't know what's in 'em (except that they're pretty max'd out) so don't ask about specific configs. Contact me off-list for making arrangements. Thanks. TTFN - Guy

18 years, 1 month

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Macintosh IIsi and Performa in original boxes FREE (Chicago, IL)

by sellam＠vintagetech.com

A nice lady named Ann has a Macintosh IIsi and Performa (don't know what model) with all manuals, original system disks, and original boxes free for the taking in Chicago, Illinois. You can probably even convince her to ship it if you're willing to pay for the privelege. > > I have some old Mac computer equipment (IIsi and Performa) and all the > > original sofware, boxes and manuals from that era. Also, Adobe > > magazines from the early 1990's. I have an organized pile but now it's > > time to move the stuff to someone who needs certain items for their > > collectibles or send them to be recycled. The Performa isn't terribly exciting. The IIsi is just old enough now to start being interesting as a collectable. I just worked a fairly involved project that required nearly every Mac II model (hence all the recent requests) and am now more familiar with them and thus appreciate them more. The IIsi was the penultimate model of the II series (the IIvx and IIvi came last). If interested, please contact me and I will forward to you the contact information for Ann. -- 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 ]

18 years, 1 month

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GA Zebra Computers

by w.reses＠yahoo.com

Jay, ? I recently saw your 2007 post about your GA collection. I have a GA 1750 with 1MB of memory, a 60MB Archive tape, 18 ports, and a Maxtor XT-2190 140MB hard drive. I am running GA Pick O/S version 3.8T1 (the latest). I also have the dealer.assy account and the sysgen acount. ? I have written lots of assembly code for multiple Pick platforms. I specialize in on-line, retail point of sale transaction processing which can be done with a combination of Basic, Pick assembler and InfoLinke (or on the PC - Mainlink.II) interfaces. ? I am also interested in obtaining an A200 or related R91 machine. If any of these things are of interest to you, please write me back. Thank you, Wayne

18 years, 1 month

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Free Amiga 2000 in Middle Island, NY

by tosteve＠yahoo.com

Contact Eugene below, not me - this is not my system. -------------------------------------------------- Name: Eugene DiFabio - Damescena at aol.com Where: Middle Island, NY Hi - I am looking to give away my Amiga 2000 and accessories. I have the computer, monitor, mouse, and a printer, and the complete maintenance schematics for this computer. I also have a stack of Amiga World magazines from about the year 1988- early 1990's or so. Thanks. Damescena at aol.com

18 years, 1 month

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Clearing BIOS Passwords - Was - What is a safe way to clean corrosion?

by doug＠stillhq.com

Mark I had a Digital laptop a couple of years ago that somebody gave me that has a BIOS password. The configuration data including password was stored in a 24C01 8 pin NV memory chip. I searched for a solution without success, and eventually did the following. 1. With a 12" (30CM) lead, tie the serial data line of the memory chip to ground, pass the cable out of the computer case as a loop, and re-assemble the case. 2. Power on the device - Gosh - The machine believes that the memory chip is full of zeroes, so the configuration is invalid. 3. Access the setup utility. 4. Using sidecutters, open the link from the data line to ground (thats why I used 12" of wire). 5. Make the required configuration changes and save a new default password. Nothing beats a brute force hardware solution when the vendor wants you to use a convoluted USB key or "link the secret pads" solution..... Hope that this is helpful. -- Doug Jackson, I-RAP, MAIPM, MIEEE Principal Information Security Consultant EWA-AUSTRALIA PO Box 6308 O'Connor ACT 2602 Level 1, 214 Northbourne Ave, Braddon ACT 2612 Tel: +61 (0)2 6230 6833 Fax: +61 (0)2 6230 5833 Mob: +61 (0)414 986 878 http://www.ewa-australia.com ============================================ IMPORTANT: This email remains the property of Electronic Warfare Associates - Australia. If you have received this email in error, you are requested to contact doug.jackson at ewa-australia.com or Ph +61 2 62306833 and delete the email. This message is not to be copied or distributed to other parties without the express permission of the author. Any personal information in this email must be handled in accordance with the Privacy Act 1988 (Cth). ============================================

18 years, 1 month

1
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Looking for final rev IBM PC/AT roms.

by fireflyst＠earthlink.net

Hi, I have a PC/AT that I believe the ROM BIOS has gone bad in. Does anyone here have the final rev (November 1985?) BIOS ROM image around that I can use to check my ROM against and/or burn another copy if need be? I use this machine on a constant basis so to have it running again would be a real boon. Thanks Julian

18 years, 1 month

1
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Rant about loaning vintage computers for ad shoots and props

by aek＠bitsavers.org

> As has been pointed out, Wired totally stiffed us on the credit. > These guys are total douchebags. > If any media company comes to you to ask if they can borrow something from > your collection, your first question to them should be, "What's your > budget?" And if they fumble around with a non-answer or say you'll get > exposure or credit or other useless intangibles, tell them to take a hike. > They are just trying to take advantage of your naivete. yup... I wasted half a day looking for the Electrohome brown monitor these jerks wanted for the shoot because they were being nagging PIAs to our publicity person.

18 years, 1 month

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early desktop TCP/IP implementations

by aek＠bitsavers.org

> The pc based tcp/ip work done at > MIT. That was the first tcp/ip on a pc I think And THAT software (which was sold by FTP Software) was based on BCPL code for the Alto.

18 years, 1 month

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Rant about loaning vintage computers for ad shoots and props (was Fwd: [FG] WarGames: A Look Back at the Film That Turned Geeks and Phreaks Into Stars)

by sellam＠vintagetech.com

Dave McGuire asked: > Is that not a standard IMSAI floppy subsystem, the one that uses the > same drives as the DEC RX01? Yes. However, it's missing the control logic board :( As has been pointed out, Wired totally stiffed us on the credit. They gave partial (partial as in they didn't follow my instructions) credit to me...can you find it? These guys are total douchebags. And on this note I would like to entreat the CC community to realize that the items in their collection are rare and valuable and in demand, and not only that but so is your time. This stuff is getting harder to find. You can't just go to the local hamfest or surplus shop anymore and pick up a dual 8" floppy drive, not to mention an IMSAI dual 8" floppy drive. Many of you have paid good money to collect, restore, and store this stuff for years now. You should get compensated for it. If any media company comes to you to ask if they can borrow something from your collection, your first question to them should be, "What's your budget?" And if they fumble around with a non-answer or say you'll get exposure or credit or other useless intangibles, tell them to take a hike. They are just trying to take advantage of your naivete. At a minimum you should request $100 in compensation for your time and trouble. Also make sure they put down a deposit, or at least put in writing and HAVE SOMEONE SIGN OFF ON IT that if they damage any part of it, even a tiny scratch, they will compensate you for $X (fill in the X). It's either that or they have to dredge up stock photos or footage, and that will cost them way more, not just in licensing fees but in the time to locate what they need. You guys all maintain a valuable resource with your blood, sweat and tears. Don't underestimate the value of your time and trouble. Don't let anyone take advantage of you. I'll be happy to consult with you or even represent you if such cases arise. I will be happy to do this at no charge. I don't want to see anyone taken advantage of. -- 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 ]

18 years, 1 month

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more adm3 stuff

by sellam＠vintagetech.com

Eric pondered: > > No, just until you're about in your mid-30s or so. > What? Seriously: http://www.nytimes.com/2006/06/12/technology/12ring.html?_r=1&oref=slogin -- 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 ]

18 years, 1 month

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Double-wide equipment cabinets available

by sellam＠vintagetech.com

I have a couple large double-wide 19" equipment cabinets that used to contain the components for a Nicolet NMR spectrometer. They are six feet tall and would hold lots of gear. Before I scrap them I wanted to offer them to anyone who could use them. I would like a token amount (basically the cost of the steel scrap, which would be maybe $30-$40. Local pick-up would be required (I really doubt someone would want to ship these). If there's any interest let me know ASAP and I'll send photos. I need to be rid of these within the next few days as they are consuming valuable space that I need to recover. Please reply directly to me. 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 ]

18 years, 1 month

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What is a safe way to clean corrosion?

by madodel＠ptdprolog.net

I just took apart a Thinkpad 701c that has a BIOS password that I am attempting to clear. There is some powdery residue caked inside the battery compartment that has leaked into a few areas surrounding it. Is there a safe way to remove this? Mark

18 years, 1 month

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Sun & DEC stuff in Rochester

by slawmaster＠gmail.com

I'm trying to get rid of some stuff I'm not using, so if anybody wants to come and get it... I'm open to deals, trades, and negotiation on everything. Sun Ultra 10, 440 Mhz, 256 MB RAM, 9 GB drive. I'd like a little cash ($20?) or booze in exchange for this. Sun Ultra 1, 175Mhz (?), 64 MB RAM, 9 GB hard drive. Trade for beer? 20" Sun monitor, 13w3. Take it for $5 or I'll throw it in with either of the Sun boxes Sun Type 5 keyboard & mouse to go with either of the computers. DEC Multia, Alpha processor @ 166Mhz, 64 MB of RAM, no hard disk. $10? and finally Cisco 7505 router w/ 4 fiber Fast Ethernet ports and FDDI interface. I have tested it, I know it boots. $75 (I feel the need for compensation after hauling this around for 2 years) John -- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

18 years, 1 month

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Pointless question...

by aek＠bitsavers.org

> Suppose one wanted simulate one in modern components. How would you > do it, if you had, say, a million bits to store? Fewest parts would be to use a FIFO feeding the "O" back to the "I" I had thought about building a state sequencer this way once for a project where the sequence was of programmable length, but didn't require branching. -- The ADM3 'A' version differed from the original by replacing the recirculating shift registers with 2102's and a 10 bit counter.

18 years, 1 month

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Northstar Advantage in Seattle for sale trade.

by michaelgreen42＠comcast.net

Any interest in a Northstar Advantage? I know pretty much nothing about this machine but it does appear in good shape.

18 years, 1 month

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Micro Data PC230 (South Australian computer)

by thrashbarg＠kaput.homeunix.org

Hi, A while ago I got one of these off a friend of a friend and got it going a few days ago. I was wondering if anyone had any information about it, specifically a technical reference manual. I'd like to have a closer look at its architecture, just out of curiocity and for this... The hard disk interface is a WD33C93 and has a BIOS to let MS-DOS access it. It currently has its original 20MB Miniscribe hard drive internally and I attached an external 140MB 5.25" SCSI drive. Just as an experiment, I attached a CD-ROM drive to it and set the number of SCSI drives to three. It detected the CD-ROM drive when there was a disk in it, but MS-DOS doesn't natively support ISO9660 drives. So I made a 20MB hard disk image in QEMU, partitioned it in FDISK and formatted it, then burnt the image to a CD. MS-DOS detected it as a drive first go. This shouldn't be a surprise if you know a thing or two about the SCSI architecture. This makes me wonder if there's such thing as an ISO9660 extension for MS-DOS that will let me access CD's in this way. The issue is if I don't have a disc in the CD-ROM drive when it boots it will fail to detect the drive. The other option is writing a driver for the WD33C93... Thanks, Alexis

18 years, 1 month

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more adm3 stuff

by sellam＠vintagetech.com

John Floren queried: > Do you guys know any good fixes for that kind of thing, or am I cursed > to hearing that terrible head-numbing whine forever? No, just until you're about in your mid-30s or so. -- 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 ]

18 years, 1 month

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multiprocessor microPDP-11/83

by chd_1＠nktelco.net

A post about a multiprocessor PDP-11/45 made me think about a multiprocessor microPDP-11/83. Is it possible to connect the Qbus of two microPDP-11/83s together? what about Unibus PDP-11/84s? The -11/83 is more interesting, because I can replicate it. Since bus arbitration is handled by the processor, arbitration on one of the processors would need to be disabled. The KDJ11-B Users Guide doesn't suggest a way to do this. The arbitrating processor would also have to field all the interrupts. I am tired of reading about the first computer on the internet... Besides, I have not heard any of you wise guys argue that there couldn't be a first computer on the internet (or Internet) or any network since a single computer can't make up a network. -chuck

18 years, 1 month

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Small Torx (Was: What is a safe way to clean corrosion?

by dm561＠torfree.net

Don't overlook the Dollar stores (or whatever they're called in your part of the world); that's where I found my tiny torx. And FWIW, up here N of 49 Active sells a fairly complete 32-pc security bit set for ~$10.00. m

18 years, 1 month

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ultrix on simh

by tommytune123＠gmail.com

Hi, I'm running Ultrix V2 on Simh quite happily today and have a couple of goals I don't know how to accomplish. I'm hoping someone here can help. First, the tape I installed from created two very small virtual disks and filesystems on rl00 and rl01. I would like to be able to create a third virtual disk with more space so I could actually get some work done. Does anyone know how to create and mount a new filesystem on a new virtual image under simh/ultrix? Second, I would maybe like to upgrade to Ultrix 3.1, maybe on a vax if it is supported. Is there a howto for doing so under simh, including where to find a good boot tape? Third, I would like to find and install the online manuals, which were missing from my distribution. Unfortunately, I have not been able to find them. Are they available online, or does someone have a set they can tar up and share? I'm pretty UNIX savvy, but I really started getting deeply interested and involved in the SYSVR2 days. My experience with DEC hardware and software >from an administrator's position is nonexistent, but I really want to learn. Someday I would actually like to have a microvax running UNIX here to play with. But that's another story. Thanks in advance for any wisdom you can impart. Tom

18 years, 1 month

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adm3a and Linux

by slawmaster＠gmail.com

I pulled out my ADM-3A today in an effort to stave off studying and homework and such; hooked it up to my Debian box, only to find that there isn't really very good support for it under Debian. I use this line in my inittab: T0:23:respawn:/sbin/getty -h -L ttyS0 9600 adm3a and while I can log in, vim for example looks TERRIBLE, ls tries to do color and fails miserably, etc. When I log on to one of the Solaris machines on campus via SSH, they handle things gracefully. ls works right, vi is excellent. Is the difference in our terminfo files, or what? I'm not really sure how these things work so I'm hoping somebody can help me figure out what's up here, because I'd like my Debian computer to play nicely with the terminal. Thanks John -- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

18 years, 1 month

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what happens when a Tandem NonStop stops

by spectre＠floodgap.com

http://thedailywtf.com/Articles/Designed-For-Reliability.aspx Those of you who find the Tandem NonStops fascinating will enjoy this story of when this particular Tandem NonStop does in fact stop (due, of course, to human failings). Highlights: in-memory patching and repair guy hits the wrong switch. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- TRUE HEADLINE: Police To Begin Campaign To Run Down Jaywalkers -------------

18 years, 1 month

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more adm3 stuff

by slawmaster＠gmail.com

The ADM-3A seems to be working ok now, but I really notice the high-pitched whine of the CRT. It's waaaay up at the upper limit of hearing and not very loud but it IS extremely piercing. To the point where I think it is causing headaches. Do you guys know any good fixes for that kind of thing, or am I cursed to hearing that terrible head-numbing whine forever? John -- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn

18 years, 1 month

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Experience with ECB bus?

by lynchaj＠yahoo.com

> -----Original Message----- > From: Andrew Lynch [mailto:lynchaj at yahoo.com] > Sent: Sunday, July 20, 2008 5:17 PM > To: 'cctalk at classiccmp.org' > Subject: Experience with ECB bus? > > Hi > > I am designing an ECB bus backplane for my N8VEM SBC project and am > looking for some peer review prior to going to manufacturing of these > PCBs. The N8VEM SBC seems to be working out alright. About a half dozen > people have successfully built the SBC so now it is time to start thinking > about peripheral expansion. > > Although the N8VEM SBC uses the ECB bus for expansion, I have not ever > used ECB bus machines as they are common in Europe but extremely rare in > the US. I have made an ECB bus backplane prototype using prototype boards > and it works well enough so I think the basic concept is sound. > > However, I would like to make this ECB backplane as common and general as > possible so other hobbyists can use it not just N8VEM SBC builders. I > would really like to avoid any inadvertent N8VEM unique extensions. > > If you have experience with ECB bus based machines, I would like to hear > your comments and suggestions. > > So far, the ECB bus backplane has six DIN 41612 connectors. All 96 pins > are routed. Pins for IEI/IEO have jumper pads per connector to allow > usage of Zilog peripheral interrupt priority scheme. The backplane has > its own Vcc and Gnd, including a power switch and LED power indicator. > > The PCB is 2 layer to keep costs low. Each side has a ground fill zone > for a low impedance ground. I will be using the double thick PCB material > (3.2 mm) for rigidity and the double weight copper trace for low > impedance. > > Vcc and ground traces are triple wide (51 mils) minimum and also routed on > both the component and copper sides of the board. The rest of the traces > are the usual 17 mils wide. > > After I order some of these backplanes, I will make them available in a > similar fashion as the N8VEM SBC. The PCBs will be available for $20 each > plus shipping. The builder will have to source the rest of the parts. > > If you are interested in helping or have questions, please review the PCB > backplane design at: > > http://groups.google.com/group/n8vem/files?&sort=rdate > > There are two recently uploaded PDF files containing the schematic and the > PCB layout. > > Thanks in advance for any *constructive* feedback. Have a nice day! > > Andrew Lynch [AJL>] Hi All, Well, it seems like no one has experience with the ECB bus which rather surprises me as I am sure there are many people on this list from Europe and/or the UK. If there is anyone with PCB design experience who could review my design, I would appreciate it. The PCB will run at around 4 MHz and some may take it as high as 10 MHz. The N8VEM SBC runs at 4 MHz so that is my desired operating speed but I cannot rule out people modifying their SBCs to run faster. Specifically, I am concerned about using the extensive ground fill zones and also the ground and VCC traces are on both the copper and component sides of the PCB. Even though the PCB is small, am I causing potential ground loops with excessive traces? I am trying very hard to make low impedance paths to ground and also allow sufficient low impedance current carrying capacity for VCC. I suspect the fully loaded ECB bus would draw maybe an amp or two on the VCC rail. The worst case for the N8VEM SBC is about 500 mA or so and much less if CMOS components are used. If anyone could help, I would much appreciate it. The ECB is a rather uncommon bus in the US but was used extensively in home brew computer projects in Europe. The ECB bus is a natural extension of the Z80 and is very nice to work with not to mention extremely affordable compared to S-100 or STD since you can make your own inexpensive peripherals with a cheap prototype board ($5) and a DIN 41612 connector ($3). My N8VEM SBC project uses the ECB bus and will plug into the ECB backplane when it is available. I will be selling the ECB backplane connector PCBs to anyone interested in the same manner as the SBC PCBs are available. You can see additional details at the N8VEM website: http://groups.google.com/group/n8vem Thanks and have a nice day! Andrew Lynch

18 years, 1 month

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cctalk Digest, Vol 59, Issue 18

by mtapley＠swri.edu

At 12:00 -0500 7/19/08, C. Sullivan wrote: >...I'm going to out on a limb here and assume that you are trying to use >a variable power supply wall-wart with one of those little slider >switches on it to do different voltages (is that the Radio Shack # >270-1551?). >... I have one like that. It works in many cases, but I'm not much of a fan. See below. >...Worse, most cheap supplies of this >type will sag as the load exceeds the rated maximum: so while it might >indeed be 9VDC at 100mA, at 175mA of load it can drop to 7.5V or lower. Worse yet... mine does the inverse. Plugging it in unloaded, with the switch set to 3V, still lets the voltage rise to around 10V (as indicated by my analog multimeter, so it's not *totally* unloaded). That scares me. I'm sure any reasonable load would drag it down near 3V, but ... is there any silicon in my load that wants to not see 12V, even powered off? >A proper lab supply will allow you to >give anything you find the RIGHT power, cleanly, and with overcurrent >protection that could save the device from frying. Seconded, even though I have not done so myself (yet). While on the topic, has anyone any experience with the Velleman integrated DMM/Power supply/soldering iron? http://www.vellemanusa.com/us/enu/product/view/?id=522812 Price isn't that great and all of the parts look sort of beginner-level, but the compact size is appealing. >...Velleman makes a 1A kit power supply >that is more than adequate for a lot of this kind of stuff AND has the >bonus of being real easy and fun to build. It is $12.95 from Ramsey >Electronics (www.ramsey.com). maybe http://www.ramseyelectronics.com ? The given URL advertises winches. -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

18 years, 1 month

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ADM 3 OR 3A NOT SURE AVAILIABLE

by us21090＠yahoo.com

Where are you located? Scott ----- Original Message ---- > From: "RLAAG at pacbell.net" <RLAAG at pacbell.net> > To: cctech at classiccmp.org > Sent: Tuesday, July 22, 2008 3:11:10 PM > Subject: ADM 3 OR 3A NOT SURE AVAILIABLE > > I HAVE AN ADM 3 OR 3A, NOT SURE WHICH, I THINK THAT I DON'T NEED... WHEN I USED > IT YEARS AGO IT HAD SOME HORIZONTAL PULLING BUT MORE OR LESS WORKED THEN... NOW > I DON'T KNOW BUT DIDN'T WANT TO TEST IT OUT... THE SCREEN HAS SOME STRANGE > SPOTS APPEARING BUT THEY MIGHT BE JUST ON THE SURFACE OR MIGHT BE INSIDE LIKE > THE OTHER POSTS ON HERE ABOUT THAT... I DON'T KNOW, BUT MIGHT BE GOOD FOR PARTS > ANYWAY... CAN LET THIS GO FOR SHIPPING AND A LITTLE POCKET CHANGE...

18 years, 1 month

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What is a safe way to clean corrosion?

by oldcpu2＠rogerwilco.org

> Dunno about a T1, but Home Despot usually has a mini-driver set > that's 8 bits - 4 double-ended inserts with 3 stored in the plastic > handle. They go from T4-T10 + T15, they're about 8 bucks, they look > cheesy as hell, and they're GOOD bits. I have a Philips/blade set and a > Torx set. IIRC they're made by Husky. Doc is correct, it is a Husky brand tool, model #HD-74502T. I got mine from Lowe's for $9 about a year ago. The bits are definitely hardened, I can't begin to see any rounding on mine though they've been used a lot in the last year. The cap on the end of the handle spins like a jeweler's screwdriver, and for me at least, it works very well in one hand. - Jared

18 years, 1 month

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cctech Digest, Vol 59, Issue 19

by malcolm＠avitech.com.au

Thanks Jerome, I mailed you off-list, not sure if my response reached you though? I haven't had any luck finding one locally in Australia, so I am very interested in getting hold of the one you have. I will be in the U.S. for the next few weeks (Seattle), so postage/packing charges shouldn't be quite so much of a problem. Regards, Malcolm. Jerome H. Fine wrote: >> Malcolm Macleod wrote: > >> Just wondering if anyone has a VT100 keyboard they can spare for a >> reasonable price? I recently received a VT100 terminal (minus >> keyboard) and >> am keen to bring this back to life. >> >> > Jerome Fine replies: > > I have a VT100 keyboard that I can sell you at a low price. > > It looks like you are in Australia. I am in Canada, so the shipping > and handling will likely be high. > > Can you found one locally? > > Sincerely yours, > > Jerome Fine > > >

18 years, 1 month

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Small Torx (Was: What is a safe way to clean corrosion?

by tonym＠compusource.net

>-----Original Message----- >From: Fred Cisin cisin at xenosoft.com >Sent 7/22/2008 3:21:28 PM >To: General Discussion: On-Topic and Off-Topic Posts cctalk at classiccmp.org >Subject: Re: Small Torx (Was: What is a safe way to clean corrosion? > >On Tue, 22 Jul 2008, madodel wrote: > No where local, though Sears had a T6. I had to order online. I found a > vendor on Amazon.com (Micro-Tools) that sold them as separate items. Most > places only had sets and those rarely had lower than a T6 or T10. > I bought a set at Sears that went down to like a T3 or so - $9.99 or $14.99 for the set of 5. Tony

18 years, 1 month

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PRINTOS MARSH CPU II+ operating instructions

by brain＠jbrain.com

Someone gave me a copied copy of the PRINTOS MARSH CPU II+ Operating Instructions. I have scanned it to PDF. I do not want or need it here. So, I am happy to ship the hardcopy to someone for cost of shipping. I am happy to provide the PDF to someone who can archive it. Jim -- Jim Brain, Brain Innovations (X) brain at jbrain.com Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! Home: http://www.jbrain.com

18 years, 1 month

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"first" computer on the internet

by ajp166＠bellatlantic.net

> >Subject: Re: "first" computer on the internet > From: Eric Smith <eric at brouhaha.com> > Date: Sun, 20 Jul 2008 23:21:09 -0700 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > >Allison wrote: >> I'm a bit surpirzed no one has mentioned UUCP. > >While uucp can be run over the internet, it is fundamentally a >store-and-forward system, and unrelated to internet protocols. > >IIRC uucp was invented by Mike Lesk around 1976. > It is true that many system that didn't have connectviity to the big hub systems that formed tha backbone if DARPA-net then later ARPAnet used UUCP to pass their traffic? Allison

18 years, 1 month

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ADM 3 OR 3A NOT SURE AVAILIABLE

by RLAAG＠pacbell.net

I HAVE AN ADM 3 OR 3A, NOT SURE WHICH, I THINK THAT I DON'T NEED... WHEN I USED IT YEARS AGO IT HAD SOME HORIZONTAL PULLING BUT MORE OR LESS WORKED THEN... NOW I DON'T KNOW BUT DIDN'T WANT TO TEST IT OUT... THE SCREEN HAS SOME STRANGE SPOTS APPEARING BUT THEY MIGHT BE JUST ON THE SURFACE OR MIGHT BE INSIDE LIKE THE OTHER POSTS ON HERE ABOUT THAT... I DON'T KNOW, BUT MIGHT BE GOOD FOR PARTS ANYWAY... CAN LET THIS GO FOR SHIPPING AND A LITTLE POCKET CHANGE...

18 years, 1 month

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RS Wall Wart

by wdonzelli＠gmail.com

Anyone have specs (voltage, polarity, etc.) for the Radio Shack 270-1551 power pack? I want to test out an old tabletop computer game, and do not want to invest in six C cells. -- Will

18 years, 1 month

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Looking for a Zenith Z29 terminal, and some VT100 keyboards

by ian_primus＠yahoo.com

Well, I just acquired some VT100's, albiet without keyboards. So, now I'm looking for some VT100 keyboards - even broken or damaged ones. Also, I _just_ missed a Zenith Z29 terminal (newer than the Z19, with detachable keyboard), on eBay, simply because I forgot to bid before I left the house. Augh! So, I'm looking for one of those too - does anyone have one that is looking for a home? Also, while I'm looking for stuff, anyone have a Qbus Pertec tape drive controller that'll work in a Vax? Thanks guys! -Ian

18 years, 1 month

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MOD8/80 hardware?

by sellam＠vintagetech.com

I'm passing along this request from Zbigniew Stachniak, a regualr VCF speaker and Associate Professor at York University in Toronto who also does a lot of excellent computer history research. He's looking for Microsystems International MOD8 and MOD80 hardware for some current research (see below). If you can help him, please contact him directly. -- 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 ] ---------- Forwarded message ---------- Date: Tue, 06 Nov 2007 11:22:44 -0500 From: Zbigniew Stachniak <zbigniew at cse.yorku.ca> To: Sellam Ismail <sellam at vintagetech.com> Subject: Re: VCF 10.0 Sellam, It was so nice to be able to attend VCF again. It was a great event, I have met a number of interesting people -- thanks. I have briefly mentioned to you my search for Microsystems International Ltd. (MIL) MOD8 and MOD80 hardware. These are little blue boards that plugged into a backplane which is depicted on our museum's page http://www.cse.yorku.ca/museum/v_tour/artifacts/artifacts.htm The MOD8 and MOD80 hardware (as well as the MONITOR8 software and MIL cassette interface) were reasonably popular among the hobbyists in the mid 1970s. I'm looking for the MOD8/80 boards not only to supplement our museum's MIL collection but also because I need them for my current research. If you could help in finding some of these MOD8/80 boards it would be great. Best Zbigniew -- Zbigniew Stachniak Associate Professor Department of Computer Science York University 4700 Keele Street Toronto, Ontario, M3J 1P3 Canada ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.

18 years, 1 month

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What is a safe way to clean corrosion?

by gstreet＠indy.net

Alexandre Souza wrote: >> I just took apart a Thinkpad 701c that has a BIOS password that I am >> attempting to clear. There is some powdery residue caked inside the >> battery compartment that has leaked into a few areas surrounding it. >> Is there a safe way to remove this? > > Acetic Acid (vinegar - yes!) do wonders! > You might consider trying to rinse the affected area with distilled water after using the vinegar. (You want to neutralize the affected area as well as possible.) Then take a hair dryer and gently dry the area. I recently found a discarded power supply that was so coated with oily, nasty, soot-like "stuff," that I decided to experiment. I disassembled everything and got my special green soap used for cleaning aircraft interiors and a brush. It worked wonders. I then rinsed the whole pcb (with components) and blew it off with compressed air. Then I dried it with a heat gun (very carefully, as this heat gun could easily ruin everything). I allowed the pcb sit for a few hours, then put it all back together and fired it up without incident. Caution: "Your mileage may vary..." Regards, Robert Greenstreet

18 years, 1 month

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UV PALs?

by mcguire＠neurotica.com

Does anyone here have any UV-erasable PALs (16V8 or 22V10) that they can spare? Thanks, -Dave -- Dave McGuire Port Charlotte, FL

18 years, 1 month

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know where I can get a 800k drive for a mac SE?

by trag＠io.com

> Date: Mon, 21 Jul 2008 16:17:57 +0100 > From: "Liam Proven" <lproven at gmail.com> > 2008/7/21 Jeff Walther <trag at io.com>: >> The SE/30 though, > I'm not sure *why* I want it - I have no actual use for it - but this > was the sort of spec that was to unrealistically expensive to be even > worth /dreaming/ about in 1988 or so when I first started working with > Macs. :?) Could it be mid-life crisis? Instead of buying sports cars, we're looking for the computer configurations we longed for but couldn't afford in our youths? Although, I must say, my head has been turned by the prospect of MythTV running on a shiny *new* collection of hardware. I'm seriously considering decimating my collection of old Macs and just focusing my attention on playing around with modern stuff for a few years. Of course, I want to perfect replacing the FBGA soldered memory chips in the Apple TV and use hacked ATVs as the MythTV front ends. If there's no hardware hacking, where's the fun? Jeff Walther

18 years, 1 month

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HOPE Conference this weekend

by evan＠snarc.net

Hi all, This weekend is the seventh "Hackers On Planet Earth" conference, once again at the Hotel Pennsylvania, in New York City. Tomorrow my user group, MARCH, will have a hacker-themed vintage computer exhibit there from about 10am - late. Come visit us! - Evan

18 years, 1 month

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Looking for a GT40 keayboard

by quapla＠xs4all.nl

Hi, I'm looking for a keyboard which goes with the GT-40. I do have the terminal and video processor, but to make it complete I need the keyboard as well. Thanks, Ed

18 years, 1 month

1
0
0 0

HOPE Conference this weekend

by evan＠snarc.net

We at MARCH were very pleased to see so many people at HOPE express interest in vintage computers. Our booth Saturday didn't feature anthing wild -- just an Osborne, a Mac 128K, and a IIe running Oregon Trail. But it was packed with excited hackers almost the entire day. -----Original Message----- From: Sellam Ismail <sellam at vintagetech.com> Subj: HOPE Conference this weekend Date: Mon Jul 21, 2008 1:58 pm Size: 1K To: Classic Computers Mailing List <cctalk at classiccmp.org> First, I think I speak for Jessie Jackson when I say I'm glad to hear that they will be keeping HOPE alive. With regards to Vegas, I spent more time there when I was 21 than I care to admit, but it wasn't for the gambling and sin (the true story is even wilder). I haven't been back since except for a couple short stop overs on business trips, so I'm interested to see how it's all changed. When I was going there the Bob Stupak tower was still up and they were just starting to build that big emerald glass casino, the MGM Grand I believe. I've never been to DefCon but would like to go, and it would be good justification for finally seeing modern Vegas. Back to HOPE, I attended in 2006 and it was one of those experiences where you think it was going to be lame but it completely overwhelmed your low expectations and turned into an excellent experience (like Mardi Gras in NO :) I was expecting a bunch of dorky wannabe hackers running around trying to out-impress each other with their h4x0r tricks but it was nothing of the sort: just a bunch of serious-minded people converging in the HOtel PEnnsylvania to learn and share knowledge. I highly recommend it. I would've gone this year but for my sagging bank account :( -- 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 ]

18 years, 1 month

3
2
0 0

"first" computer on the internet

by ajp166＠bellatlantic.net

> >Subject: Re: "first" computer on the internet > From: Eric Smith <eric at brouhaha.com> > Date: Sun, 20 Jul 2008 12:18:34 -0700 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > >Mark wrote: >> And what was the first operating system to have builtin support for >> internet access? Did Windows for Workgroups have this or was that just >> LAN networking? > >It certainly wasn't any Microsoft operating system. Microsoft was at >least ten years late to the party. > >If you define "internet access" as "having TCP/IP", it might have been >BSD 4.1a, which included the crufty BBN TCP/IP code, and was released in >1982. ARPANET switched from NCP to TCP/IP on January 1, 1983 ("flag day"). I'm a bit surpirzed no one has mentioned UUCP. Allison

18 years, 1 month

6
7
0 0

Does anyone have a DEC VT100 Keyboard they can spare?

by malcolm＠avitech.com.au

Just wondering if anyone has a VT100 keyboard they can spare for a reasonable price? I recently received a VT100 terminal (minus keyboard) and am keen to bring this back to life. Malcolm

18 years, 1 month

3
2
0 0

HOPE Conference this weekend

by sellam＠vintagetech.com

First, I think I speak for Jessie Jackson when I say I'm glad to hear that they will be keeping HOPE alive. With regards to Vegas, I spent more time there when I was 21 than I care to admit, but it wasn't for the gambling and sin (the true story is even wilder). I haven't been back since except for a couple short stop overs on business trips, so I'm interested to see how it's all changed. When I was going there the Bob Stupak tower was still up and they were just starting to build that big emerald glass casino, the MGM Grand I believe. I've never been to DefCon but would like to go, and it would be good justification for finally seeing modern Vegas. Back to HOPE, I attended in 2006 and it was one of those experiences where you think it was going to be lame but it completely overwhelmed your low expectations and turned into an excellent experience (like Mardi Gras in NO :) I was expecting a bunch of dorky wannabe hackers running around trying to out-impress each other with their h4x0r tricks but it was nothing of the sort: just a bunch of serious-minded people converging in the HOtel PEnnsylvania to learn and share knowledge. I highly recommend it. I would've gone this year but for my sagging bank account :( -- 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 ]

18 years, 1 month

1
0
0 0

know where I can get a 800k drive for a mac SE?

by trag＠io.com

> Date: Fri, 18 Jul 2008 18:21:41 +0100 (BST) > From: ard at p850ug1.demon.co.uk (Tony Duell) > Only after carefully examining the floppy drive cable did I realise it > was not a normal 20 way ribon. 1 or 2 of the 'cores' were solid plastic, > with no wire. So no connection between those pins at the ends of the > cable. > > IIRC, the colour of the pin-1 marker on these cables is important -- it > indicates which cores are missing. There is a yellow striped cable and a red striped cable. The color stripes are the pin-1 marker, but the different colors indicated different wiring. > And people wonder why I hate working on Apple stuff... Oh, I doubt that many of us, even the ones who concentrate all their classic computer fun on Apple machines, really wonder at that. :-) I try not to dwell on the silly hardware decisions and focus on the things I like, but there are these oddities which consume little bits of my wetware memory--like the differently striped floppy cables. And I more or less ignore the existence of the old models that were very poor design decisions from the concept, such as the 68030 based machines with 16 bit data busses. The SE/30 though, there's an elegant little machine--with just enough imperfections to provide fodder for the hardware hacking inclined. :-) Jeff Walther

18 years, 1 month

2
1
0 0

vintage computers for pick-up in austin, tx

by frustum＠pacbell.net

I decided to give away most of my collection. I just don't have the time anymore to play with any of it, and the thought of wrapping this all for ebay gives me convulsions. The condition is (please read carefully, and sorry for shouting): ####################################################### ### ### ### THIS IS FOR PICK-UP AT MY HOUSE IN AUSTIN TEXAS ### ### ### ####################################################### No, I can't ship. Sorry. Really. I'm not going to do it. The sooner you pick it up the better, as I might loose my mind and decide to keep it all. If there is interest from more than one person, I reserve the right to parcel things up how I see fit. If you have some special connection or need for any of these items, let me know and I'll take it into consideration. (1) IBM 5120. BASIC-only. Dual 8" disk drives. Works. Needs terminator to allow the disk drives to work (the terminator is built into the printer that is daisy-chained off the expansion bus, but when I bought the 5120, I didn't want to pay for shipping a hundred pound dot matrix printer with it). Has manuals and a few floppies. (2) An Apple II+, and Apple IIe with an accelerator card (3.5 MHz), a bunch of floppies, some games new in box, joysticks, a few disk drive units, a few cards (3) Northstar Horizon, in the aluminum case. With one 5.25" drive, one 10 MB (I think) hard drive. Works. Currently turbodos is installed and is working, but I have turbodos, hdos, and normal nsdos disks available too. I have a number of manuals for it as well. (4) A Sage II computer. Dual 5.25' floppies. This is a 68000-based system. Works. Boot media too. (5) A PT Helios disk system and controller board set. This doesn't work, but I believe is repairable. These were touchy to begin with, so it would take a lot of perseverance and some skill to get it going again. (6) Two Sol-20s. Both have been tricked out with Hogg Labs upgrades to 80x24 text, and relocation of the monitor roms to F000 (switchable). Both had their keypads replaced and work fine. This will come with a large collection of manuals, pretty much everything that is on www.sol20.org (7) TRS-80 Model 4P. That is the luggable model. Works. Perhaps I can find some boot disks. Thanks.

18 years, 1 month

4
3
0 0

"first" computer on the internet

by tonym＠compusource.net

>-----Original Message----- >From: Allison ajp166 at bellatlantic.net >Sent 7/20/2008 5:58:30 PM >To: cctech at classiccmp.org >Subject: Re: "first" computer on the internet > > >I'm a bit surpirzed no one has mentioned UUCP. > >Allison > > Why I mentioned UUCP yesterday, I think. I used it to connect to miami.edu for email. This woulda' been reeeeeally early 90's Tony

18 years, 1 month

1
0
0 0

IE4 for Alpha running NT4

by teoz＠neo.rr.com

Anybody have a link for IE4 for alpha? Casn't seem to find it on the net and a friend is looking for it. Thanks, TZ

18 years, 1 month

3
3
0 0

FS: PCjr stuff, Richard from m CArlos PCjr..

by sales＠c-reset.com

7-20-2008 Hello Carlos: Thanks for passing along the message on the IBM PCjr computers etc. We have plenty of PCjr items at this time and can not purchase more at this time. We are still working on the office building to make it meet the City of Dallas Code. This has been going on since Mid March and I am close to the end. We owe a BIG Thank You GOD for his help in sending us some volunteers >from our church to help with the work. I found some new LNW80 Technical Reference Manuals and also some NEW copies of the CP/M 2.2 Operating system while cleaning up - Do you want one ? ? You may remember this was an early CP/M machine similar to the TRS-80 Model 1. If you do I will give pass them along to Bruno the next time I see him. Best Regards Richard Computer Reset Dallas, TX Remember: Faith expects from GOD what is beyond all expectation. Jose carlos Valle writes: > ---------- Forwarded message ---------- > From: cs.csubak.edu > Date: 2008/7/18 > Subject: FS: PCjr stuff > To: cctalk at classiccmp.org > > > > I have three PCjr units. One has four sidecars. One has one. The third > has none. There are also four chiclet keyboards, four "regular" keyboards > (one sealed new-in-box), a technical manual, and lots of keyboard > overlays. > > Make me an offer. > > > -- > David Griffith > dgriffi at cs.csubak.edu > > A: Because it fouls the order in which people normally read text. > Q: Why is top-posting such a bad thing? > A: Top-posting. > Q: What is the most annoying thing in e-mail? > > > > -- > Jos? Carlos Valle ? Presidente curador > www.museudocomputador.com.br > Blog do curador:--HTTP://blogdocurador.museudocomputador.com > Tel office: 011 4666-7545 - celular prov: 8794-6730 > Tel skype 3013-3946 - "Tudo posso naquele que fortalece, Felipenses 4:13"

18 years, 1 month

1
0
0 0

UK101

by lproven＠gmail.com

Anyone interested in this early 8-bit micro? I've just been offered one for free, but I don't really have the room. Happy to post it on if the recipient pays P&P from London. -- Liam Proven ? Profile: http://www.linkedin.com/in/liamproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AOL/AIM/iChat: liamproven at aol.com ? MSN/Messenger: lproven at hotmail.com Yahoo: liamproven at yahoo.co.uk ? Skype: liamproven ? ICQ: 73187508

18 years, 1 month

4
5
0 0

Save a Solbourne: 5/600 on eBay for pickup

by spectre＠floodgap.com

For people who don't have enough hot and heavy VME bus action, noticed this on eBay. Pickup only -- otherwise I'd be bidding on it myself. Looks like a nice 5/600 for anyone with an interest in Solbournes or SPARCs in general. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170241777050 -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Apparently I am not very good at being tricky. -- John Hughes --------------

18 years, 1 month

2
3
0 0

Experience with ECB bus?

by lynchaj＠yahoo.com

Hi I am designing an ECB bus backplane for my N8VEM SBC project and am looking for some peer review prior to going to manufacturing of these PCBs. The N8VEM SBC seems to be working out alright. About a half dozen people have successfully built the SBC so now it is time to start thinking about peripheral expansion. Although the N8VEM SBC uses the ECB bus for expansion, I have not ever used ECB bus machines as they are common in Europe but extremely rare in the US. I have made an ECB bus backplane prototype using prototype boards and it works well enough so I think the basic concept is sound. However, I would like to make this ECB backplane as common and general as possible so other hobbyists can use it not just N8VEM SBC builders. I would really like to avoid any inadvertent N8VEM unique extensions. If you have experience with ECB bus based machines, I would like to hear your comments and suggestions. So far, the ECB bus backplane has six DIN 41612 connectors. All 96 pins are routed. Pins for IEI/IEO have jumper pads per connector to allow usage of Zilog peripheral interrupt priority scheme. The backplane has its own Vcc and Gnd, including a power switch and LED power indicator. The PCB is 2 layer to keep costs low. Each side has a ground fill zone for a low impedance ground. I will be using the double thick PCB material (3.2 mm) for rigidity and the double weight copper trace for low impedance. Vcc and ground traces are triple wide (51 mils) minimum and also routed on both the component and copper sides of the board. The rest of the traces are the usual 17 mils wide. After I order some of these backplanes, I will make them available in a similar fashion as the N8VEM SBC. The PCBs will be available for $20 each plus shipping. The builder will have to source the rest of the parts. If you are interested in helping or have questions, please review the PCB backplane design at: http://groups.google.com/group/n8vem/files?&sort=rdate There are two recently uploaded PDF files containing the schematic and the PCB layout. Thanks in advance for any *constructive* feedback. Have a nice day! Andrew Lynch

18 years, 1 month

1
0
0 0

"first" computer on the internet

by evan＠snarc.net

>>> Yepp. I've heard of people doing that. You cheapskate you. Have you ever MET sellam? :)

18 years, 1 month

3
2
0 0

Sticky cable (was Re: UK1010

by roger.holmes＠microspot.co.uk

> > My word! I'm astonished at the levels of interest in this box. I'm > still trying to contact the donor to arrange collection at the moment. > > In addition to this thread, I've also had multiple emails from > would-be claimants; between multiple time zones and transmission lag, > I have no idea who was first. > > My current thought is this: I could put it on eBay, and whatever the > selling price it goes for, I will donate that to Bletchley Park or > some other suitable charity relating to preserving classic computers. > > How does that sound to everyone? Sounds very fair to me, though I was not one of the claimants as I have had one of these from new. On a related subject, the mains cable of my UK101 has become sticky where it has been in contact with expanded polystyrene for many years. Has this happened to anyone else and does anyone know if this is a chemical reaction? It might just be coincidence and maybe I spilt something on it and have forgotten about it. I used a large ceiling tile to stand the machine on when I first got it so it would not scratch the table and its been there ever since. Yes I know NOW about static and expanded polystyrene (I think its called styrofoam in the states), but back then all the 74 series chips I bought, came by post pressed into bits of normal white (non antistatic) expanded polystyrene so I presumed it was safe, apart from the fire risk of course. I bought my UK101 ready assembled though I had to insert the second 4k of chips about 6 months later because every time I rang to complain they said they went out yesterday and were in the post. By the time I got them the chips had fallen in price considerably. I built an expansion board with a 6522 on it though I cannot remember why, nor what a 6522 can do. About then I was offered a moonlighting job programming the Apple ][+ with the offer of a machine (with two disk drives) as payment so I lost interest in the UK101.

18 years, 1 month

4
3
0 0

the "history" of the Internet/Web

by dm561＠torfree.net

----------Original Message: Date: Sun, 20 Jul 2008 11:31:31 -0400 From: Dan Gahlinger <dgahling at hotmail.com> Subject: the "history" of the Internet/Web <snippage> >So continue with your stupid jokes, and ancient references that mean nothing to the public at large. >I thought this list was a bit more mature than this >So fine, into the garbage a piece of history goes. congratulations! I hope you're happy >Dan. ----------Reply: You're absolutely right; we all need to feel guilty and assume responsibility for your decision to throw this (so-called) piece of history into the garbage. You have so much to teach us about maturity; thank you! m

18 years, 1 month

1
0
0 0

Osborne Computer 4 (Vixen) prototype?

by bob＠jfcl.com

> Chuck Guzis wrote: > But that little monitor! It is small, isn't it? But it's very sharp, even on 80x24 text, so it's easy to read if you sit about 6" away from the screen. Makes me want to get a Fresnel lens on a swing arm, a la Brazil :-) Bob

18 years, 1 month

5
7
0 0

free SGI Octanes in Tucson

by ingrammp＠earthlink.net

All I have 6 SGI Octane computers available for free to anyone who can come by to pick them up. They have various sets of memory and graphics cards, and if you're interested and can pick up in Tucson, I can do a better inventory for you ahead of time. All were working as of last usage, but will be delivered without a hard drive ( but with the hard drive sled !! ) I also have three VS160 Quantum scsi DLT tape drives and two Quantum scsi autochangers that hold 8 VS160 tapes. Again, the machines and the tape drives are free, but I'am not able to ship ( but I could drop them off someplace locally, if you made arrangements for someone else to ship them... ) Mike Ingram

18 years, 1 month

4
4
0 0

FS: PCjr stuff

by dgriffi＠cs.csubak.edu

I have three PCjr units. One has four sidecars. One has one. The third has none. There are also four chiclet keyboards, four "regular" keyboards (one sealed new-in-box), a technical manual, and lots of keyboard overlays. Make me an offer. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

18 years, 1 month

2
2
0 0

Rescue FWD: USUS Software, Sage II in Sunnyvale, CA

by jfoust＠threedee.com

>Date: Tue, 15 Jul 2008 12:45:43 -0700 >From: "Dennis R. Cohen" <drcohen at mac.com> >Subject: USUS Software Library > > >Hi, > >A long time ago, I was pretty active in USUS and have a pretty complete >copy of the USUS Library. Your article implied interest. The bulk of the >set is on 8", but there is some on the 5.25" that I used with the Sage >II. > >I'm getting ready to move from the Silicon Valley to Spokane, WA, so if >you are interested, please contact me while I can still find them. I >also have an old Sage II with Televideo 925 terminal and an Apple /// if >your USUS Museum would be interested. I would be willing to donate them >if you have someone to come and get them. > >Dennis R. Cohen >Sunnyvale, CA

18 years, 1 month

3
2
0 0

"first" computer on the internet

by sellam＠vintagetech.com

I'd pile on here but the point has been well made by far. Sheesh. -- 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 ]

18 years, 1 month

1
0
0 0

"first" computer on the internet

by sellam＠vintagetech.com

Brian L. Stuart said: > The "first" of one of these warrants very little historical interest. I disagree with just this part. It is of interest, but your point is taken. -- 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 ]

18 years, 1 month

1
0
0 0

"first" computer on the internet

by tonym＠compusource.net

>-----Original Message----- >From: Evan Koblentz evan at snarc.net >Sent 7/17/2008 11:45:18 PM >To: 'General Discussion: On-Topic and Off-Topic Posts' cctalk at classiccmp.org >Subject: RE: "first" computer on the internet > >Also ... Who is this man? Here's a bio: >http://en.wikipedia.org/wiki/Einar_Stefferud > > That Wikipedia page is like a year old, and I can't really find much info on that person. Besides the fact the Wikipedia is about as trustable as a lion in a butcher shop, where everything you type becomes "fact." I worked at Citrix Systems back in 1994 until 1995, and we ALREADY had system on the Internet, or internet, when I started there early 1994, and already had CITRIX.COM, and used it for email back then. We used the Microsoft Gateway for MS Mail. I also remember registering ASPID.COM with Ann Westine @ ISI back in about 1991 or so, and there were ISP's cropping up already, with UUNet being the leader (at the time) - I happened to be going through the University of Miami (FL) using mthvax.cs.miami.edu, first using UUCP, and later SLIP/PPP. I mean - wasn't AOL and CompuServe accessing the internet by then? I think the email address had to have :INTERNET> prefixing it, or something similar? A Sun SLC? in 1994? Don't think so - way too late to the party - we were already drunk! T

18 years, 1 month

2
1
0 0

"first" computer on the internet

by evan＠snarc.net

No, no ... email is pipes. Didn't the Romans invent that? -----Original Message----- From: Fred Cisin <cisin at xenosoft.com> Subj: Re: "first" computer on the internet Date: Fri Jul 18, 2008 4:34 pm Size: 34 bytes To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> When did Al Gore invent it?

18 years, 1 month

2
1
0 0

"first" computer on the internet

by rick＠rickmurphy.net

At 02:57 PM 7/18/2008, John Floren wrote: >Is this thing going to turn into your "OS/2 for the PDP-11" debacle >all over again? >http://www.classiccmp.org/pipermail/cctalk/2008-January/253028.html > >I'd swear we were being trolled. Naah. Do you think so? :-) -Rick

18 years, 1 month

2
1
0 0

know where I can get a 800k drive for a mac SE?

by jlobocki＠gmail.com

hello, anybody know where I can get an 800k drive for my mac SE? mine seems to have quit working. thanks -Joe

18 years, 1 month

5
9
0 0

Extreme screen "rot" on an ADM-3a (an ebay auction)

by sellam＠vintagetech.com

I've seen worse, as recently as a few days ago. A beige/brown color-schemed ADM 3a came in for recycling and it looked like the CRT face was ready to just fall apart. It was literally almost ten times worse than that in the subject eBay auction. > I'm unsure if we've ever come to the conclusion if this is just an > adhesion separation issue resulting in blotches resembling mold, or > actual mold causing the separation. (Have we had some sort of cause > for this problem?) We came to the conclusion that it was a delamination issue. If you can find it in the list archives, one of our intrepid list members did some experiment that pretty much conclusively proved it was delamination. These are now starting to be worth real bucks. I say they are worth getting in any condition at this point, especially if they can be rehabilitated. I think if someone can find an equivalent CRT in a common piece of gear, like maybe an Apple monochrome monitor, then that would be useful. I guess I could do that, if I make the time. $250 is way too high for this one. Drop the zero. But add $25-$50 for the original manual. -- 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 ]

18 years, 1 month

3
2
0 0

know where I can get a 800k drive for a mac SE?

by trag＠io.com

> Date: Thu, 17 Jul 2008 12:34:54 -0500 > From: "joe lobocki" <jlobocki at gmail.com> > On 7/17/08, Jeff Walther <trag at io.com> wrote: >> My bad. I was thinking of "autoinject" and not 800K vs. 1.44MB. >> However, unless you're a purist for collector's reasons, I think the >> 1.44 >> MB drive will work fine in the SE. It will read and write 800K and 400K >> disks just as well as an 800K disk drive. > jeff, you may be right, but my understanding was that a 1.44 drive > wont function in a system with an 800k set of chips, and that it needs > to be chipped or the logic board swapped. yes, I am a purist, but i > think i might be able to slide on this one if it works. First, please do not top post, and please do edit away irrelevant quoted text. Second, the 1.44 MB drive will not function as a 1.44 MB drive in a system with 800K chips. However, it will function just fine as an 800K drive. There is no chipping or logic board swapping needed to use the 1.44 MB floppy drive as an 800K drive. The only possible issue is the floppy drive cable, as I wrote earlier, but the difference (IIRC) was only one line which would be easy enough to change. Still, I'm pretty certain that the floppy cable issue was one of auto-inject vs. manual-inject drives, not 800K vs. 1.44MB drives, because I remember installing an auto-inject drive in a machine normally equipped with manual-inject drives, once, and the drive began continuously ejecting. That's caused by a difference in the cable, but is completely irrelevant (IIRC) to your situation. Jeff Walther

18 years, 1 month

3
2
0 0

(no subject)

by sellam＠vintagetech.com

Jules sayeth: > I believe Sellam still has an offer open to analyse the decay if someone > can send him a sample - I'd already ditched the pile of rot from the > HP-250 by that point. Yes, I believe that opportunity is still available. But I don't think that's necessary. I think one could be analyzed adequately if it was removed, de-vaccumed, and a hole of 1cm is drilled through the face where the affliction is at its worst. Then blow the dust away and see what you got. If there's something biological there, isn't there a simple test you can apply (say "hello" to it and see if it responds)? If it's delamination, I think it will be apparent at the cross-section. The drilling would not be that trivial, but doable. If I get time I'll try this, just to put this to rest once and for all. -- 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 ]

18 years, 1 month

2
2
0 0

Extreme screen "rot" on an ADM-3a (an ebay auction)

by eric940＠gmail.com

Terminal Buffs and others interested: I've seen screen rot before -- even owning one with perimeter symptoms, but this is an example of _extreme_ "screen rot" (separation of the protective plate from the CRT) on an ADM-3a. See picture(s) -- http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=360070017833 I realize this issue has been brought up and discussed numerous times in the past -- but I thought I'd give ClassicCMP'ers a peek. I'm unsure if we've ever come to the conclusion if this is just an adhesion separation issue resulting in blotches resembling mold, or actual mold causing the separation. (Have we had some sort of cause for this problem?) Anyway, FYI for those interested. May be good for parts, although the initial bid price is a quite high side given the condition. -eric P.S. I have no connection to the seller, am not pushing a purchase in any way.

18 years, 1 month

10
11
0 0

(no subject)

by sellam＠vintagetech.com

Donzo quoth: > WHACK! > > You should know better - put quotes around *your* first, mister. Silly, of course you know I meant on The Internet :) -- 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 ]

18 years, 1 month

1
1
0 0

"first" computer on the internet

by sellam＠vintagetech.com

Unless "First" (in quotes) signifies its node name was "First", I don't know how it could be the first on the internet. Year of first internet node connectivity: 1969 Year Sun SLC Workstation was brought to market: 1990 There's a 21 year gap there. The first e-mail communications occured sometime in the 1970s. What are we missing here? -- 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 ]

18 years, 1 month

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VCF East exhibit registration

by evan＠snarc.net

http://www.vintage.org/2008/east/exhibit.php A few details (exact show schedule, lodging, etc.) are still being worked out. But exhibit registration is now open. Please start using it and let me know ASAP if you encounter any problems.

18 years, 1 month

1
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Eprom Programmer Bytek 135H

by pgheude＠picknowl.com.au

Hi there, I am sorry I do not know your name and I came across your message while browsing and I am hoping you can help. I have dusted down my old programmer a Bytek 135H as I have a project I where I need to program an eprom. Have not used it for some time now and have lost the manual and application used to drive it. There was a floppy I used to insert into my PC, however it was so long ago all is lost or misplaced it. I am trying to find out some details on the unit. Did you ever locate a copy of the application floppy and manual for the unit you acquired? Regards, Peter Fingers crossed. Mylor Australia.

18 years, 1 month

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More computers needed for project ($$$)

by sellam＠vintagetech.com

I'm working on a consulting project that is ballooning in terms of equipment needed. I am seeking the following computers: Toshiba T1600/40 Macintosh IIx IBM PS/2 Model 90 Any AST laptop that was brought to market prior to Fall of 1989 (must include original power brick) Atari STacy Cosmetic condition is not a concern, but functionality is: they must work. Please contact me at your earliest convenience if you have any of these computers you'd like to sell. Time is of the essence, so please contact me soon. 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 ]

18 years, 1 month

1
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Bernoulli/Syquest carts available

by SUPRDAVE＠aol.com

I've more of these than anyone will need and they're all brand new. 3 packs of Bernoulli 5.25 44meg disks KAO 5.25 88meg syquest disks. The label inside says they are formatted for Macs but includes software for wintel machines also. $1 each plus whatever for shipping and they're yours. Just say how many you want. -- I am not willing to give up my privacy for the false promise of 'security'

18 years, 1 month

2
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Apple I BASIC dump

by sellam＠vintagetech.com

Well, nice work on his part, but all he had to do was e-mail me and I could've sent him a perfect copy, which I've had for years, and which I've given out to several people. Also, I simply read the program from a copy I have on tape into an Apple ][+. Once you get the volume levels correct on the cassette tape (not trivial, but do-able after enough tries) then it's a no-brainer. No fancy waveform graphs or C code required. Finally, Apple-1 BASIC is simply "Integer BASIC", which came with the Apple ][ and is pretty readily available itself. Anyway, it was a nice intellectual exercise. -- 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 ]

18 years, 1 month

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test-drb