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

by derschjo＠gmail.com

Hi all -- I'm attempting to get my 8/L talking to the outside world. It's outfitted with the typical Teletype interface, which I'm attempting to connect to a PC via acurrent loop to RS232 adapter. Specifically, I've got one of these: http://www.bb-elec.com/Products/Serial-Connectivity/Serial-Converters/Curre…. At the moment I have it configured (per the manual) assuming the 8/L is an active loop device (i.e. the converter's transmit lines connect to the 8/L's receive lines, and the 8/L's transmit lines connect to the converter's receive lines). With this configuration I'm able to get the 8/L to send data to the PC successfully. I'm not having much luck getting the8/L to receive anything from the PC, however. If I put my multimeter in the loop, I see a current of about 40mA, which drops to between 30 and 37mA when the PC is sending data (depending on what data's being sent). However, I'm not getting much of anything onpin "E" of the W076 (Teletype Connector) board -- this is supposed to be the "Logic Output" and I'm assuming that should be the TTL-level data signal, correct? I do see a very, very tiny signal (in the millivoltrange) on pin "E" that matches up with the data being sent from the PC, but it's obviously nowhere near the correct level. I've gone over the W076 board and checked the related diodes and resistors for anything open/shorted. And I actually did find a bad diode (fell apart when I desoldered one leg to test) but replacing it made no apparent difference. At this point I'm wondering if the loop configuration I have is incorrect. I thought this was supposed to be a 20mA loop, but I'm getting 40mA. I know very little about the fundamentals of current loop stuff, so I could be way off here. Anyone have any advice? Thanks, Josh

12 years, 11 months

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military computer on ebay

by brianlanning＠gmail.com

Terrible price, but interesting nonetheless. http://www.ebay.com/itm/1991-C3-Military-Field-Combat-IBM-PC-Working-Condit…

12 years, 11 months

6
7
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Does anyone know what the functional differences are between models of Sony OA-34V floppy drives for early Macs?

by ethan.dicks＠gmail.com

Hi, All, Tangential to my Mac128K repair, I now have an OA-D34V-22 drive but my Mac128K board came with -A ROMs, as I have mentioned previously. I have found pictures of various models of this drive, and I know about what models work with what ROMs, but what I haven't been able to find out is what changed that old firmware doesn't work with newer drives. For search terms (and later documentation of this topic), here's the matrix... Original rev 64Kbyte ROMs, P/N 342-220-A / 342-221-A OA-D34V works OA-D34V-22 does not work OA-D34V-02 does not work Later rev 64Kbyte ROMs, P/N 342-220-B / 342-221-B OA-D34V works? OA-D34V-22 works OA-D34V-02 works >From my reading, it seems to have something to do with the stepper motor, but I haven't turned up any details. My guess is the original stepper pulse frequency or pulse width doesn't drive the motors on the newer drives correctly, but does anyone here know what the changes are and why? My solution to what hardware I have is still going to be to replace the -A ROMs with -B ROMs, but I just wanted to learn more. Thanks, -ethan

12 years, 11 months

1
0
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Friday night deals at VCFMW/ECCC

by slandon110＠gmail.com

Im bringing a 12 foot trailer full of goodies out to VCFMW. Friday night ill let everyone raid the trailer, deals will be made so I dont have to haul it all inside. So get there early and get some good deals.

12 years, 11 months

3
2
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Torx HDD screws

by dgriffi＠cs.csubak.edu

Does anyone here have any clue where I can find 6-32 1/4" screws with torx heads of the sort one would use to secure hard drives? The only source I know is scrouging HP stuff and I'd really like a better source than that. Philips screws annoy me to no end.. -- David Griffith dgriffi at cs.csubak.edu

12 years, 11 months

8
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Subject: Torx HDD screws

by elson＠pico-systems.com

David Griffith <dgriffi at cs.csubak.edu> Subject: Torx HDD screws Does anyone here have any clue where I can find 6-32 1/4" screws with torx heads of the sort one would use to secure hard drives? The only source I know is scrouging HP stuff and I'd really like a better source than that. Philips screws annoy me to no end. McMaster-Carr and MSC are some places that come to mind. If you need a lot, there are fastener companies that specialize in these things. Check your local phone listings. Jon

12 years, 11 months

1
0
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NEC DKU 743 Disk drive?

by holm＠freibergnet.de

Hi, a frienbd of mine phoned me, he currently is at the facility from a electronics recycler, looking at what a previous guy has left over from a Nixdorf Targon/35. (desoldered the cpu(s) with an hot air gun) He pulled the cipher M891340 9 track drive and is looking at the disk bays now. There are "NEC DKU 743" drives, couldn't find anything with google. What kind of drives are that? Interface? Kind Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

12 years, 11 months

2
1
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6x0x host processor and 6x0x IO mezzanine PCBs are here

by LYNCHAJ＠YAHOO.COM

Hi! At long last the 6x0x host processor and matched 6x0x IO mezzanine boards have arrived! These can be used on the ECB backplane as a 6502, 6809, or 6802 coprocessor or as a standalone SBC. They can even host their own ECB backplane as bus master with the 6x0x ECB backplane PCB. http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=ECB%206x0x%20Ho st%20Processor http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=ECB%206x0x%20IO %20Mezzanine The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your board(s) right away! Please contact me if you have any questions. Thanks and have a nice day! Andrew Lynch

12 years, 11 months

1
0
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N8 PCBs are here

by LYNCHAJ＠YAHOO.COM

Hi!? The reordered N8 boards have arrived! These are the all-in-one retrocomputer boards based on the Z8S180 CPU plus a full suite of IO peripherals. http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=ECB%20N8%20prev iously%20known%20as%20the%20Home%20Computer The PCBs will be $20 each as per the usual arrangement.? Shipping in the US is $3 for a single PCB and $2 for each additional PCB.? Shipping internationally is $10 for a single PCB and $3 for each additional PCB.? This is for the bare basics USPS first class postage with no tracking or insurance.? The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your board(s) right away!? Please contact me if you have any questions.? Thanks and have a nice day! Andrew Lynch

12 years, 11 months

1
0
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SOL-11 language and OS

by earl＠retrobits.com

Hi all, I'm looking for an OS/language package for the PDP-11 called SOL-11. The download links I've found via Google are dead. There used to be a tar.gz file out there somewhere but it has vanished. Also, it needs an assembler called BTN-11 (which I would need also). Anyone have this handy? :-) Thanks, - Earl

12 years, 11 months

1
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VCFMW 2013 Price List- Everything is Or Best offer or Trade

by slandon110＠gmail.com

Just got done doing my 2013 Pricelist for VCFMW. Thats not everything either, I have a trailer packed full of goodies Everything is Or best offer or trade heres the list https://docs.google.com/document/d/1cJkLE-VZXpEQ8RwxG6MiOckqwz3VQ_sVZVQfoTn… Some of the things im looking for: NeXT Cube Sun Sparcstation 20 SparcStation Voyager VT-100 Terminal Commodore 1084S Monitor x2 Commodore 64/128 Accessories Atari 16 Bit system STE, Atari TT. Atari 8 Bit System 800XL,1200XL Some sort of Unix system, IBM, DEC, something that runs AIX/Unix. Or whatever you got, worst I can say is im not interested. Im bored with Apple stuff See you at the show. Ill be in a black blazer with a green trailer attached. Stuff is priced to move.

12 years, 11 months

1
0
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Apple II keyboard replacement: MM5740-AAE with wrong marking?

by shadoooo＠gmail.com

Hello. I'm repairing an Apple II keyboard, where I needed to replace a defunct MM5740-AAE/N. I bought a couple of new MM5740-AAE/N from Littlediode, they arrived and have a quite modern aspect and National logo, while the old broken IC has no logo. Maybe they are coming from a more modern production... I tried both on the keyboard, same behaviour: the keyboard itself works, but I receive wrong key codes from it. I checked with another keyboard, computer is working fine. I double-checked the MM5740 marking, it's absolutely correct. Of course I checked for sticky bits, or logic problems, but nothing strange there. I wrote down a key "replacement" table, and from what I see these AAE encoders are generating codes exactly like they was AAD version... Maybe here there's a problem of wrong markings over the ICs? Anybody ever heard of similar issues, or bought these encoders from Littlediode and had similar problems? I suspect that they came from a production lot wrongly-marked. Andrea

12 years, 11 months

3
2
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Sun PC-NFS & FTP Software PC/TCP

by kris＠catonic.us

I have: two copies of Sun PC-NFS V5.1, including all the paperwork A copy of FTP Software PC/TCP V2.3 A copy of FTP Software PC/TCP V2.2 If anyone wants them. Nothing heard in a week and the paper (manuals, etc.) hits the recycling bin. -- Kris Kirby, KE4AHR Disinformation Analyst

12 years, 11 months

1
1
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Encore Multimax...

by jon＠jonworld.com

All, As a few of you know, I have the old Encore Multimax from Purdue, which came to me by way of Pat Finnigan's collection. I plan to get her running (at least power her up and see what sparks fly) in the next few weeks as long as the weather remains "fall-ish." I'm wondering how many of these are left? The CHM in Silicon Valley seems to have one, but the one they have seems very different from mine. As of 1995 Brown University seems to have had one, but I don't know if they still have it or if it is scrapped. There is also 0 documentation and software on bitsavers. I'll gladly send stuff over to them once I figure out what I'm doing with mine. Are there any other of these systems left? -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 11 months

2
1
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Empty H9273 card cage?

by fraveydank＠gmail.com

This is a long shot, but: I got a bare H9273 backplane (9-slot Qbus, 18-bit) off a fellow list member. It's been languishing in my parts area for a while while I try to figure out what to do with it. If someone happens to have a bare card cage that fits it (I think it's mechanically identical, or at least compatible, to the H9276), I'd be much obliged and would pay a reasonable sum of money for it. I don't need a full H9273 backplane/cage assembly, since my entire intent is to make use of the backplane I have. Otherwise, if anyone has any experience designing and fabricating card cages on the cheap, I'd be interested. I initially considered doing something out of wood, since I don't have much in the way of metalworking tools, but that presents some obvious airflow issues. It's still looking like the best option for me if I just cut the sides away aside from some columns for mounting the plastic card guides. - Dave

12 years, 11 months

1
0
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Info about Z80 machine

by mtapley＠swri.edu

At 22:52 -0500 9/22/13, Chuck wrote: >Does generalization always win out over specialization? Should my >subcompact car also serve as a 10-ton dump truck? <Looks out window at parking lot full of huge pickups and SUV's used as single-occupancy commute vehicles> .... <goes back to reading email on "old" "slow" Powerbook G4> .... Sigh. For most of what I've done today, my DEC Rainbow would actually have been fine. Probably my Tandy CoCo, although I don't know that a text email client for that one ever existed. -- - 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.

12 years, 11 months

1
0
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PDP-8/L current loop -> RS232 help

by michael.99.thompson＠gmail.com

>From: Josh Dersch <derschjo at gmail.com> >Date: Tue, 17 Sep 2013 21:09:46 -0700 >Subject: Re: PDP-8/L current loop -> RS232 help >Sorry to reply to my own post here, I had a bit more time to screw with this this evening. Turns out it was a programming error (actually a program entry error :)) that was (apparently) causing the 40mA current instead of 20mA -- the >little "echo" program I coded up wasn't properly waiting for data to come in before echoing it back, so the 8/L was constantly sending 377 back across the loop, which I'm assuming accounts for the difference? >With this corrected, the loop is registering ~23mA idle, dropping to 19-20mA when the PC attempts to send data. Can anyone comment on whether this sounds reasonable? Anyone have any advice? (Getting desperate here :)). >Thanks, >Josh If you intend to use your serial interface with to load RIM/BIN formatted tapes you may need to implement the READER ENABLE signal. This signal comes >from the M706 module and goes to the CTS signal on the serial port. Your terminal emulator can be programmed to only transmit when the CTS signal is active. This signal will also allow you to modify the TTY port to run at much higher speeds than the standard 110 baud. -- Michael Thompson

12 years, 11 months

7
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Collection to sell

by gary_neier＠yahoo.com

Hi All, I'm helping a friend, Barry, with clearing out his collection of computers, manuals, etc. He has a lot. Here is an initial list. -- a Digital PDP-8L -- a Digital PDP-11/35 -- a Data General Nova 1200 -- at least two Deskside Solbourne systems (these are Sun Sparc based multiprocessor computers), spares, and the installation media on CD-ROM for the special version of SunOS they ran. -- At least a dozen Sun Sparc1 and Sparc2 workstations -- lots of DEC desktop VAX, Alpha -- lots of q-bus pdp-11 systems and parts, several BA-23 (perhaps as many as a hundred cards) -- a number of IBM RS/6000 systems -- a number of HP 9000 systems -- still more sparc workstations including at least one each sparc-10, one sparc-20, one ultra-10, the "lunchbox" -- a variety of screwball laptops including two Tadpole sparcbook laptops -- at least two early 68K macintosh laptops, appletalk and an ethernet to appletalk bridge -- everal 9-track tape drives (not to mention tapes, including a Unix V7 distro tape) -- an AT&T 3B1 -- an Anderson-Jacobsen serial printer (based on the IBM Selectric mechanism) -- A Digital PDP-11/70 in the "blue" trim (blue and white switches) in a double-wide corporate cabinet -- lots of IBM PC type gear, spanning many generations. -- lots of computer-ish books.? -- Ancient software (Ashton Tate DBase IV, maybe?) -- A Livingston Portmaster -- A Gould Biomation K100D and a Gould Biomation K101 logic analyzer. I have service manuals for the K100D, and enough cables for one or the other. -- Lots of S-100 cards and parts including both Z80 and 8086 -- An Imsai 8080 S100 system with the lights-and-switches front panel -- An Ithaca Intersystems S100 system with the lights-and-switches front panel -- An Altair 8800 system -- A Seattle Computer Products S100 system (this is what the original ms-dos was developed for by Tim Paterson ) -- A SAGE II 68K with CP/M-68K? -- A Sun-2 in dual deskside cabinets with a Fuji 9-track drive? -- The Siemens equivalent of an ASR-33? Let me know if you are interested. Some of the bigger items can't be shipped. We are in Santa Cruz, California. -Gary

12 years, 11 months

8
10
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Info about Z80 machine

by supervinx＠libero.it

Hi! I found a Z80 based machine. Externally looked like an XT clone, with a wooden (!) case. Inside, I found a Z80 based MB (all chips are socketed) and a WD-1001 card. Yes, there's a floppy drive, and HD and a unusual tape streamer. On the rear, six DB15 female ports and a 50pin connector. The label says EMI Computer Systems Italy, Model 80/30 (BTW it's different from the IMSAI 80/30). I read the 4k (2732) EPROM, which contains a small monitor, allowing to boot from various sources. Nothing more. I assumed the six ports to be serial ports. I connected a terminal (virtual, putty) through a null modem cable (the one I used for all console operation) and powered the machine up. Floppy and HD led were lit, but saw no activity on the ports. I tried various speeds (1200, 2400, 4800, 9600). The reset switch makes the HD led go off and on, so something still works... 1 I haven't any info about this old beast, so can't tell if it's broken or I'm wrong somewhere. Must try without the null modem cable... Did you ever see that brand (EMI Computer Systems)? Thanks! -- Vincenzo (aka Supervinx) --==ooOoo==-- My computer collection: http://www.supervinx.com/Retrocomputer --==ooOoo==-- You can reach me at: www.supervinx.com www.facebook.com/supervinx http://www.youtube.com/user/supervinx http://www.myspace.com/supervinx

12 years, 11 months

3
4
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Making perfect Keytronic replacement keypads

by aek＠bitsavers.org

I had to fix some Lisa keyboards, and here is what I finally came up with after a week or two of experimenting that produces perfect pads. Woodland Scenics 5mm HO track bed for the foam, as others suggested ($1 for 24" x 2") Maudlin PL10-0075 .0075 x 10 x 20 plastic shim stock for the back (about $10 with shipping) Michaels metalized mylar sheets for the pads (a couple bucks for several square feet) Get a Disc Cutter with 7 Punch 1/4" to 5/8" from ebay ($28) http://www.ebay.com/itm/390617394797 for example This is critial (see below) Cut the foam and shim stock to 10" x 9/16" Cut strips of mylar long enough and wide enough to apply to the foam Attach the shim stock to the mylar with Scotch Super 77 spray adhesive Do the same with the mylar, metal side against the foam, with enough tension so it is smooth. You only have about a second to fiddle with the mylar before the adhesive starts to set! Shim the disc cutter so the strips just fit through the upper and lower plates without binding. Then use and arbor press or non-metal mallet to punch the discs, mylar side up. You'll get about 15 discs per strip. I experimented with a leather punch, and even tried a 11mm cigar punch, but the only way I could get perfectly straight cuts through the foam was with the disc cutter. So far, I've identified the following systems that need pad replacements Apple Lisa Corvus Concept Terak Genrad Futuredata SOL-20 I was thinking of making a bunch, but changed my mind after finding what a PITA they are to make. The other thing I discovered was Elmers School Glue Sticks work the best for attaching old pads and plastic to new foam.

12 years, 11 months

11
16
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oasis8 disk images

by supervinx＠libero.it

Hi! Anyone has some disk images of Oasis8 OS? Thanks! -- Retromuseum: http://www.supervinx.com/Retrocomputer You can reach me at: http://www.youtube.com/supervinx http://www.myspace.com/supervinx http://www.facebook.com/supervinx

12 years, 11 months

1
0
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Collection to sell

by dsnyder＠blueshiftinc.com

i would be interested in the pdp11 stuff. do you have descriptions (components and condition) of the 11/35, 11/70 and qbus systems and parts? how will you determine prices? i live in the south bay, so i could pick up the heavier items that can't be mailed. doug

12 years, 11 months

1
0
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Collection to sell

by ball.of.john＠gmail.com

Is either the 8/L or the 11/35 just the bare unit or is it in a rack? I can probably justify shipping costs if it's just the unit. Wish this has been posted a month ago when I was still in the area. xP -John > Hi All, > I'm helping a friend, Barry, with clearing out his collection of > computers, manuals, etc. He has a lot. Here is an initial list. > > -- a Digital PDP-8L > -- a Digital PDP-11/35 > -- a Data General Nova 1200 > -- at least two Deskside Solbourne systems (these are Sun Sparc based > multiprocessor computers), spares, and the installation media on CD-ROM for > the special version of SunOS they ran. > -- At least a dozen Sun Sparc1 and Sparc2 workstations > -- lots of DEC desktop VAX, Alpha > -- lots of q-bus pdp-11 systems and parts, several BA-23 (perhaps as many > as a hundred cards) > -- a number of IBM RS/6000 systems > -- a number of HP 9000 systems > -- still more sparc workstations including at least one each sparc-10, one > sparc-20, one ultra-10, the "lunchbox" > -- a variety of screwball laptops including two Tadpole sparcbook laptops > -- at least two early 68K macintosh laptops, appletalk and an ethernet to > appletalk bridge > -- everal 9-track tape drives (not to mention tapes, including a Unix V7 > distro tape) > -- an AT&T 3B1 > -- an Anderson-Jacobsen serial printer (based on the IBM Selectric > mechanism) > -- A Digital PDP-11/70 in the "blue" trim (blue and white switches) in a > double-wide corporate cabinet > -- lots of IBM PC type gear, spanning many generations. > -- lots of computer-ish books. > -- Ancient software (Ashton Tate DBase IV, maybe?) > -- A Livingston Portmaster > -- A Gould Biomation K100D and a Gould Biomation K101 logic analyzer. I > have service manuals for the K100D, and enough cables for one or the other. > -- Lots of S-100 cards and parts including both Z80 and 8086 > -- An Imsai 8080 S100 system with the lights-and-switches front panel > -- An Ithaca Intersystems S100 system with the lights-and-switches front > panel > -- An Altair 8800 system > -- A Seattle Computer Products S100 system (this is what the original > ms-dos was developed for by Tim Paterson ) > -- A SAGE II 68K with CP/M-68K > -- A Sun-2 in dual deskside cabinets with a Fuji 9-track drive > -- The Siemens equivalent of an ASR-33 > > Let me know if you are interested. Some of the bigger items can't be > shipped. We are in Santa Cruz, California. > > -Gary >

12 years, 11 months

3
3
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Looking for a good home: Alignment disc 200TPI for trade or ...

by hp-fix＠xs4all.nl

I have here an alignment disc from EMM 200TPI DIBIT patern. It's a cartridge for a top loading drive like the CDC Hawk or DEC RL02. The disc is new in box including original invoice from 1979. It was stored in dry place inside the house, a quick visual inspection learn that it seems to be in good state no corrosion. I don't have any use for it (doesn't fit in my HP disc drives ;) So it's for trade or a little beer money + shipping. Trade is preferred.. I ship worldwide. Oh yes, it is of cause AS IS no warranty etc. -Rik

12 years, 11 months

3
7
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Punch Cards Q

by jon＠jonworld.com

All, Thank you for your generous donations to the STEM program I'm working on. I have a question or two about the punch cards I've received. Some of the cards have printing on one side, and are "dog eared" or have the angled corner on one end. Other cards have the printing reversed; the dog-ear corner is on the other end of the card when I'm looking at the printing. If those cards with the reversed "cut corner" or "dogear" were used in the same machine as the first set of cards, they'd be read "backwards." ... so why the two different formats? -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 11 months

10
25
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TeleVideo items for sale

by me＠GarrettMeiers.com

Hi. I have a variety of Televideo related items that I would like to find a buyer for. I acquired these through the acquisition of a very large lot of vintage computer related items last year, and really didn't have any strong interest in the Televideo items at the time. However, now that I've had them for a year, I am starting to like them -- but don't have the room to keep them, unfortunately. Time to move them to a better home where they will be enjoyed. Highlights include: - 5 TS-806/20's Computer/Servers - 28 (Probably a few more) Serial Terminals/User Stations (925, 970, TS-800, TS-800A, TS-802, TS-802H, TS-803, TS-803H, etc.), and keyboards. - 1 TeleVideo TPC 1 Portable - Lots of RS-422 networking cables, manuals, documentation, etc. I think I've found, and inventoried, all of the Televideo items that I have, but I might find some more, and will add them if I do. Here is a link to a Google Doc that has everything detailed: https://docs.google.com/spreadsheet/pub?key=0Ahk4_RQTUNcYdFpTOFQ3RFdMQ0FocE… Also, here is a link to the pictures on Dropbox, and some manuals I've collected.. Note, there are a lot more Terminals/User Stations that what are shown in the pictures (see Google Doc for inventory): https://www.dropbox.com/sh/gh6sygch9ddigvb/px5hBsLjp0 I am hoping to find someone who is interested in purchasing the entire lot, but will consider breaking it up. I am planning on attending VCF Midwest, so would be happy to bring items there. If you are interested in the entire Televideo lot, it would be great if you could pick it all up from my residence in Appleton, WI. I really don't want to bring it all to VCF. I am about 3 hrs North from VCF Midwest. I would like to add, that this lots is not in the greatest of condition. Definitely not museum quality. Lots of it needs some TLC to clean it up. Some (most) of the items have some marker writing on them (as the pictures show). Lots of scratches, etc. IIRC, all of the items I tested worked, but I didn't test everything, and only tested a small fraction of items. The 5 TS-806/20's all worked, but I think only one of the hard-drives actually worked. I had several TS-80x's network booting off a TS-806/20 via RS-422, with TurboDos, and that was pretty neat. As far as shipping, since most of these are either really big and bulky, or heavy, I'd prefer to not ship them. I would probably consider shipping any of the other items (manuals, etc.), but I'm going to hold out for a little while to see if anyone is interested in the entire lot before I piece it out. I don't have anything in mind really for price, so please make an offer. Please contact me directly via e-mail with offers. General discussion via CCTalk is welcomed. Thanks, and I hope to see many of you at VCF! Garrett Meiers www.linkedin.com/in/theunixguy

12 years, 11 months

1
1
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My Macintosh Powerbook 145B on YouTube

by terry＠webweavers.co.nz

Life is crazy right now but I finally managed to get another Youtube video up showing one of my inmates. This time it's the Apple Macintosh Powerbook 145B http://youtu.be/_HIBl8utMe0 Terry (Tez)

12 years, 11 months

1
0
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Wang computers in ebay.de

by mnusa2＠hotmail.com

Hi all (possible) Wang enthusiasts I have no interest in these but please find following link for review: http://www.ebay.de/itm/290980479749 There is three pallets of wang computers and parts. Local pick-up in Germany only. BR, Matti

12 years, 11 months

1
0
0 0

Removing TurboChannel Standoffs in a VAXstation 4000 90A

by robert.jarratt＠ntlworld.com

I want to transfer a TurboChannel option from one machine to another. To do so I would need to remove the standoffs as well. Does anyone know how to do this without breaking them? Thanks Rob

12 years, 11 months

1
0
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Repairing Mac128K board - memory problems

by ethan.dicks＠gmail.com

Hi, All, A list member recently sent me a broken Mac128 logic board. I quickly found a bad solder joint from a previous repair where one of the original 64Kbit DRAMs was replaced with a socket, but I'm still having issues. The Mac does "bong" and I do get a "Sad Mac" with a hex code. It claims it's the same chip that is now socketed (G8). If that DRAM is installed, I get "Mac in Jail" bars. If that DRAM is removed, I get black pixels where that chip was. The other odd symptom is, between the bars, a semi-regular sparse grid of on-pixels. It's not a perfect pattern across the screen; it's mostly on the right side, and not always top to bottom in a column. It does look regular, as if it's every 64 bytes or some other power-of-2, and 5% of the pixels blink as if they are changing in software. I know that Apple-branded DRAMs of this era are dodgy. I could just clip them all out and replace them with fresh, *tested* chips (I have a DIP DRAM tester), but I am concerned that the fault is elsewhere since a known-good DRAM always produces a stuck-on bit (the "jail bars"). That smells to me like a bad gate upstream of the RAM field. Looking at the available schematics, unbuffered DOUT D0-D15 go several places - a pair of '244s to buffer the data bus, a pair of '166 shift registers for video data out, a pair of '161s for sound data out, and a 16R8 PAL named ASG that appears to be related to sound and diskette PWM. The DIN side of the data bus connects to the '244 bus buffers, the CPU, the ROMs, the IWM, the 6522 VIA, and the Z8530 SCC. I would think that if that side of the bus had a stuck bit, the CPU would be fetching bad data from the ROMs, so there wouldn't even be a Sad Mac. I can do some catastrophic repair by blindly pulling all the RAM and replacing it, and I can even pull the CPU and socket it so I can stick my Fluke 9010A on the board and do some serious memory tests and exercise the bus and poke at it with an oscilloscope. What I'm asking for at this point is any information that can help me target my efforts. It seems like this sort of fault would have been common in the day, but mostly when I google "Sad Mac" or "jail bars", I get stuff about replacing individual RAM chips or changing SIMMs in an SE/30. So anyone have any advice that could help me not remove and replace 320 solder joints on a multi-layer board? Yes, I can do it, but it's a lot of time to do it well. I'd just like to get this old Mac working with an original board (I have working 512K boards, but the point is to have an Original Mac in time for display next January). Thanks for any suggestions, -ethan

12 years, 11 months

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accepting pre-orders for S-100 80286 CPU board PCBs

by LYNCHAJ＠YAHOO.COM

Hi! We still need 5 to 6 more pre-orders to have enough to make the PCB manufacturing order. If you are considering getting one or more of these rare S-100 80286 CPU boards please consider making a pre-order. These don't come around very often! The S-100 80286 CPU board is ready for "production". If you would like to get one or more of these exciting new S-100 80286 CPU boards please do the new usual pre-order. I will set aside your board so you get them as soon as they arrive. Here is a web page to describe the S-100 80286 CPU board http://www.s100computers.com/My%20System%20Pages/80286%20Board/80286%20CPU%2 0Board.htm The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will reserve your board(s). Thanks and have a nice day! Andrew Lynch

12 years, 11 months

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substituting 7401 for 8881 in a PDP-8/E

by steve＠tronola.com

Hi Pete, >No, that's wrong. 7438 guarantees 48mA, still a little under spec, but >close, and the gates are the wrong way round. --- I suppose you're basically right, but the TI datasheet doesn't specify the output voltage at that current. It shows 48mA as being the maximum recommended sink current, which certainly guarantees being free from damage at that level. The only spec I find which guarantees the output voltage specifies just 16mA. I conservatively went with that figure. In contrast, the 7439 datasheet does specify output voltage at 48, 60 and 80mA. Steve Lafferty

12 years, 11 months

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DEC TSZ07-CA 9-track Drive

by me＠GarrettMeiers.com

I have a DEC TSZ07-CA 9-track drive, in a desktop cabinet, that I got a couple of years ago. It was one of those situations where I had to have it, but had no use for it! Dug it out to play with, but it doesn't seem to power on. Anything special to get this thing to turn on? I'm assuming the PSU doesn't work, or has issues, but I've not tried to figure it out yet. Just wondering if it won't turn on because there is no tape loaded, etc. There is probably something wrong with it, but thought I'd ask. Garrett Meiers www.linkedin.com/in/theunixguy

12 years, 11 months

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For Sale: Original Early Model Macintosh 128K, TRS-80 48K Model III, Mattel Aquarius, and more!

by me＠GarrettMeiers.com

Doing some more cleaning, and found some more items that I would like to sell. These are all items that I had good intentions of playing with, but feel it's best to find new homes so they can be enjoyed. I'll be going to VCFMW, so can bring items there instead of shipping. However, I'd like to not bring them unless they are sold. Whether or not I will ship is listed next to each item, and the approx. weight. Shipping would be from 54914. TRS-80 Model III. 48K, 2x Floppy Drives, Optional RS-232-C Expansion. Fairly low serial number. Will not ship. https://www.dropbox.com/sh/9zj7ycsezrmu3o9/lD4_E7urDP One LOBO Systems MAX-80 Left, Unit only, no Documentation (Available as PDF though). Can Ship. 15 lbs. https://www.dropbox.com/sh/tpg7qi9vh1ggxu1/u0kdZSU9Jm 8x IBM Diskette Magazine P/N 2462521 filled with 8, likely unreliable, IBM 8" floppies. Can ship. 1 lb, 15oz, ea. https://www.dropbox.com/sh/ypu3bfafp3yi215/ZoXD3MnTTL Atari 400/800 Programming Language Pilot. CX405. Pocket Ref, Cart. 2x Cassettes, User's Guide, Student Guide, Pilot Primer, in binder. Can ship. 5 lb, 8oz. Mattel Aquarius Computer and Game System. In original boxes. Comes with Mini Expander, 2x Joysticks, Data Recorder, etc. Does not have any games, unfortunately. Can ship. 13 lbs. https://www.dropbox.com/sh/9r3vr6bupytp5vh/6F-AYuMegR Original Apple Macintosh M0001 128K -- early model with just "Macintosh" on the rear badge (later models say "Macintosh 128K"). This is a functional machine, but I think the floppy drive will likely need to be replaced. I got it with a floppy stuck in it, and the floppy is now out, but the drive doesn't appear to be aligned with the hole on the case. Probably what was making the floppy stick. The drive might be fixable, not sure. It's probable that the eject motor is bad due to it having a stuck floppy. It's in pretty decent shape otherwise. There is some corrosion on the battery terminals, but at least the terminals are still present! Probably a quick fix with a replacement floppy drive. Will not ship (unless you are willing pay to have this professionally packaged, insured, and shipped). https://www.dropbox.com/sh/0debci7ynuxp0gy/kIPjC-hqXX Logical Devices PROMPRO-8X MOS EE/EPROM/MICRO Programmer, with manual, software. This is an ancient programmer that connects to an IBM PC via serial. It also comes with a couple extra ZIF sockets, and a Logical Devices C-51 add-on, which allows intelligent programming of AMD/Intel 8751 Micro's and the AMD 9761. https://www.dropbox.com/sh/uwi9jwb8uu57ngx/ZBtxMBUcO7 Indus GT Floppy drive for Atari. Not 100% sure that is that is the original power supply, but I believe the specs are the same. Brochure, Plastic Hard Case (no inserts), data cable. Will ship. https://www.dropbox.com/sh/0od87p9yg98sj0a/AilVqFncQD 3x or 4x Apple eMate 300. I have power supplies for these. The hinges are all mostly too loose, and would need to be fixed/replaced. No stylus, and the batteries are not going to hold a charge. But, they are fun, and my kids love playing with them. Will ship. https://www.dropbox.com/sh/98mu014osrr39tp/moM1fzbNpZ 30x or 35x Sun Microsystems SunRay 1 Thin-Clients. Google them, they are pretty fun. I do have a copy of the SRSS Software for Sun and Linux if you need it. Will ship. I've been selling these for about $20, but can give you a deal if you want a bunch. Will ship. https://www.dropbox.com/sh/i8otfj01orwsu78/Kexq_v_S5C 4x Compaq Portable (Luggable) Model: Compaq. One has a hard-drive, but pretty sure it doesn't work. I believe they all need some work. I can't remember if one of them worked or not. Looking, ideally, for someone to talk all 4 of them. You can probably make one dual-floppy model work at least. Two of them have the padded compaq carry case. One is missing a handle, I'm sure there are parts missing from the others. Will not ship. https://www.dropbox.com/sh/ccsysqtgygkukte/NFe-QS3n21 Morrow Micro Decisions (MD-2?) Computer. Chassis Rev C, Rom 2.5. Matching Morrow MDT-60 Serial Terminal. 2 Floppy drives, can add two more. Parallel port, and an extra serial port for modem/serial/host connection. Box or two of software. Bunch of manuals. Couple issues of Morrow Review magazine. Fun little CP/M machine. Will not ship. https://www.dropbox.com/sh/bessw7ftud7l99a/X4ctyRFJ3U Apple III Computer and Apple Monitor III. This is a functioning system! I have one other one that I am keeping for parts, or a future restoration project, but I might be willing to let that go too if you are interested. Both are 128K models. Will not ship. https://www.dropbox.com/sh/h2d7rpageaj52oi/OoVYnOtAnI Commodore 64's. I have quite a few Commodore 64's. Probably at least 7 or 8. About as many 1702 Monitors, and should have at least one 1541 drive for each. I sold a couple setups with one each of the above last year for a special price of $64. But with inflation, I'll probably need a little more this year -- hey, the hotel rooms used to be $64, but now they are much more... even more with a hot tub. Also, I have lots, and lots, of TeleVideo stuff as detailed in an earlier post. If interested in anything, please contact me via private e-mail. NOTE: When replying, please add your name, and what you are interested in, to the subject line, so gmail doesn't brainlessly group everything into one thread. (Mutt gets it right, not sure why gmail can't). Thanks, Garrett Meiers ?? www.linkedin.com/in/theunixguy

12 years, 11 months

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substituting 7401 for 8881 in a PDP-8/E

by peter.turnbull＠york.ac.uk

My PDP-8/E stopped working at the weekend, which is a bit of a nuisance as I need it working for the DEC Legacy event at Windermere in October -- and I'm going on holiday on Friday so won't have much real time to deal with it and prepare my talk before then. In the meantime I've "fixed" the problem by replacing a dead 8881 bus driver (E23 on the display board, drives D0-D3 from the switches) with an SN7401. It works with M8300+M8310 CPU, M8330 timing board and M8320 bus loads, but probably doesn't have enough drive capability for a full system. IIRC an 8881 should be capable of sinking 70mA with Vol=0.8V, while a 7401 is only guaranteed for 16mA. I've calculated the terminators alone need 23mA plus around 1.6mA per load (20 loads in a medium system?), and DEC sometimes used selected 7401s marked 97401 presumably for this reason. Anyone got practical experience of substituting for an 8881? -- Pete Peter Turnbull Network Manager Information Directorate, University of York DD: +44 1904 323804

12 years, 11 months

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substituting 7401 for 8881 in a PDP-8/E

by steve＠tronola.com

Hi Pete, >Anyone got practical experience of substituting for an 8881? --- The SN7439 is commonly taken as a proper replacement for the DEC8881. I see a couple 7439's available on eBay at the moment. Also, questcomp.com is showing DEC8881 in stock at $10 each at quantity-two. Some have mentioned substituting 7438 as a lower spec version. I see from the datasheet that it does have the same schematic as the 7439. However, it doesn't actually guarantee more than 16mA output sink current. Steve Lafferty http://www.tronola.com/

12 years, 11 months

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Anyone here going to Maker Faire New York this weekend?

by ethan.dicks＠gmail.com

Hi, All, I am just curious if anyone here is planning on attending the World Maker Faire this weekend. I'll be in one of the tents in the 3D Printing Village. Drop by and say hello! -ethan

12 years, 11 months

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cctalk and cctech

by peter.turnbull＠york.ac.uk

At the risk of seeming a Grumpy Old Uncle Pete (as my nieces frequently address me :-)), I'd like to remind people they don't need to post to both cctalk and cctech. They're not two separate lists, but two views of the same list. So if a message is deliberately addressed to both, it appears twice on cctalk and often cctech: anything addressed to cctech is automatically also delivered to cctalk subscribers. If it's also addressed to cctalk then it appears there a second time, and if deemed on-topic it's also delivered to cctech a second time. cctech subscribers might not always notice this, but cctalk subscribers do. This is explained in the first paragraph of http://www.classiccmp.org/cctech.html and http://www.classiccmp.org/cctalk.html -- Pete Peter Turnbull

12 years, 11 months

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Making perfect Keytronic replacement keypads

by dm561＠torfree.net

Original Message: > Date: Tue, 17 Sep 2013 17:28:27 -0700 > From: Josh Dersch <derschjo at gmail.com> > On Tue, Sep 17, 2013 at 5:06 PM, Al Kossow <aek at bitsavers.org> wrote: > >> I had to fix some Lisa keyboards, and here is what I finally came up with >> after a week or two of experimenting that produces perfect pads. >> ... >> So far, I've identified the following systems that need pad replacements >> >> Apple Lisa >> Corvus Concept >> Terak >> Genrad Futuredata >> SOL-20 > That's very cool, thanks for sharing the results of your research > ... > I'll add a couple of systems to your list: > > - Compaq Portable (the original and the II at the very least, not sure of > others in the line). Perhaps not really a classic, but I like mine... > - The TRS-80 16-bit line (II, 12, 16, 6000). The II may not have used > foam, I do not recall for sure, but I know the others did. Also: Dynalogic Hyperion

12 years, 11 months

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Tektronix Smalltalk (was Re: Making perfect Keytronic replacement keypads)

by spacewar＠gmail.com

On Wednesday, September 18, 2013, Tony Duell wrote: > > I once repaired some kind of Tektronix workstation (I believe it was > originally intended to run Smalltalk) Perhaps one of the 4404/5/6 line, which were variously marketed as Smalltalk workstations or AI workstations. Though Tek had other workstations that might have run Smalltalk, such as the 4300 series. The 4404 family originally ran a Unix clone whose name escapes me, but switched to UTek, derived from BSD 4.2. My hazy memory suggests that UTek 1.x might have been the clone, and UTek 2.x and later BSD.

12 years, 11 months

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replacement Keytronics keypads

by sales＠elecplus.com

I called Keytronics, and they said they have not made these since 1992 or 1993. They gave the name and phone of Mil-Key in WA, 509-891-6425. They said they MIGHT still have some available there. They also said Cherry capacitive keyboards use the same technology, and are still in production. Last tidbit of info, she said these foil and foam pads are also known as "deccofelt pads". Cindy Croxton

12 years, 11 months

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Old FTGH post? NoVA Equipment?

by jon＠jonworld.com

All, I was talking with someone a month or two ago about picking up some old Sun gear. They were in NOVA and I was planning on swinging by, since I'm in DC for work (and I drove out fro IN.) .... who was I talking to? I can't find the person's contact info or even a list of what was available. I know they posted here about the stuff. My brain has turned to swiss cheese. I want to say it was like a SB2000 or 280R or V240 or something along those lines. Thank you! -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 11 months

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cctalk Digest, Vol 121, Issue 26

by elson＠pico-systems.com

Message: 3 Date: Tue, 17 Sep 2013 15:51:40 -0500 From: Garrett Meiers <me at GarrettMeiers.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: DEC TSZ07-CA 9-track Drive Message-ID: <CAGX+B9sYQM=QBEQwPMxgjCSoRUBWUpVaXHr0i8saiW3wtf_8pA at mail.gmail.com> Content-Type: text/plain; charset=UTF-8 I have a DEC TSZ07-CA 9-track drive, in a desktop cabinet, that I got a couple of years ago. It was one of those situations where I had to have it, but had no use for it! Dug it out to play with, but it doesn't seem to power on. Anything special to get this thing to turn on? I'm assuming the PSU doesn't work, or has issues, but I've not tried to figure it out yet. Just wondering if it won't turn on because there is no tape loaded, etc. There is probably something wrong with it, but thought I'd ask. Whose drive is it? DEC didn't make any 9-track drives themselves. I looked it up, and it looks like a Cipher. We had one of those direct from Cipher, and it was a total piece of crap. You had to open up the top and manually help it to thread, and as the drive powered the NCR SCSI adapter hung on the back, you had to leave it powered on all the time to not hang the SCSI bus. About every month or two, a read channel chip would die. We got a bunch of the custom chips from Cipher, but it became too much hassle to replace these chips constantly. The Cipher would definitely turn on without a tape, but I guess there's just a power LED. The only way it knows there is a tape is to try to load it. Jon Jon

12 years, 11 months

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Making perfect Keytronic replacement keypads

by barythrin＠gmail.com

Right but naturally who would have thought that a bunch of fanatics would be trying to use the hardware after 30 years or that the foam would even do that. I would have never expected that black tar to show up if i hadnt had to clean it up or hear others experience it as well.

12 years, 11 months

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IBM 8" Floppy Cartridges?

by me＠GarrettMeiers.com

Does anyone know what systems these types of cartridges were used in? I have 10 of these, and they are all filled with IBM 8" Floppies as shown. I am curious, because they don't go to anything that came in the large lot of items I got last year, and have been a mystery since. I doubt they are useful for anything, but are pretty neat. Garrett Meiers www.linkedin.com/in/theunixguy

12 years, 11 months

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Wanted: NeXT Hardware

by slandon110＠gmail.com

Looking for the following NeXT hardware NeXT Laser Printer NeXT Cube NeXTstation, can be mono, color, turbo or whatever And any and all related NeXT items Thanks

12 years, 11 months

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Unnoobing my noobness (TECO on RT-11)

by sander.reiche＠gmail.com

Hi all, I'm finally starting to learn using a PDP-11 OS and one thing I'd like to (continue to) do is working on some text. So I've starting to learn (or cope?) with TECO. Found a TECO.SAV on some RT-11 Sigtape to run on RT-11XM. But as the SimH console running the RT-11 is happy typing in lowercase letters, it all goes uppercase inside of TECO. Is there something I need to do to get lowercase working for TECO? .SET TT: LC doesn't seem to work and doesn't seem to be needed as the RT-11 prompt happily accepts (and shows) lowercase. It's just that TECO seems to be flipping the console or input to uppercase. Any ideas or standard tips&tricks/hacks on using TECO on RT-11? With kind regards, Reiche

12 years, 11 months

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New S-100 Parallel IO board

by LYNCHAJ＠YAHOO.COM

Hi The S-100 Parallel IO PCBs have arrived! I have a small stash of extra boards available now that the pre-orders are all shipped. It is the S-100 Parallel IO board which provides four input parallel ports, four output parallel ports, and a PC compatible Centronics port. It has debugging LEDs and other features to help get your S-100 system working in top shape. The board is designed to be reliable and easy to assemble. The schematic and PCB layout files are on the N8VEM wiki here http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=S-100%20Paralle lIO There is an article on S100computers.com here which describes the prototype board. http://www.s100computers.com/My%20System%20Pages/Parallel%20Ports%20IO%20Boa rd/Parallel%20Ports%20IO%20Board.htm The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM with "S-100 Parallel IO board" to receive your board. Thanks and have a nice day! Andrew Lynch PS, alternatively you can order your S-100 Parallel IO PCB from eBay. Please see my auctions here http://shop.ebay.com/lynchkl/m.html

12 years, 11 months

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DEC Rainbow / DECmate help needed (UK)

by lproven＠gmail.com

Computing History @computermuseum 3:55 PM - 17 Sep 13 Are there any #DEC peeps out there who would be willing to come and get our DEC Rainbow and DECmate going? pic.twitter.com/3dCBjwhL0d https://twitter.com/computermuseum/status/379982063132499968 -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

12 years, 11 months

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Buy or sell - Hewlett-Packard 9000 3000 HP-UX and MPE/iX servers and workstations / hardware

by sales1.cypresstech＠gmail.com

Cypress Technology, Inc. specializes in buying and selling Hewlett-Packard HP-UX, Unix, MPE/ix Linux, 1000, e3000, 9000, and Itanium series servers, workstations, and all related peripheral items. As well at telephone systems. We sell but are not limited to the following: HP-UX and MPE/iX OS and software support - Worldwide HP Itanium Integrity servers HP 9000 PA-RISC HP-UX servers HP e3000 MPE/iX servers HP 9000 HP-UX Workstations (PA-RISC and Itanium) HP 1000 Series server and parts HP-UX 9.05 10.20 11.00 11.11 11.23 11.31 V1 v2 v3 HP OpenVMS on Itanium HP VME Industrial modular ruggedized HP ABB Advant Station RTA Real Time Accelerator HP Memory, disk, tape upgrades HP Green bar and impact printer HP memory, disk, tape, mass storage arrays, data communications, HP networking solution . Contact us if you want a price quotation on any HP server / hardware. . We buy your used or surplus HP servers / workstation / peripherals. . Cypress Technology Inc exports to the World For more information what we can do for your HP hardware needs please visit our site at - www.cypress-tech.com Thanks Jesse Dougherty Cypress Technology, Inc. 13790 Roosevelt Blvd ? Unit #3 Clearwater, FL 33762 Phone 412-589-3779 jesse at cypress-tech.com

12 years, 11 months

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Bring out your NeXT Hardware or Hardware running OpenStep NeXTSTEP to VCFMW 2013

by slandon110＠gmail.com

Little over a week and a half till VCFMW-2013. Lets have the biggest display of NeXT/OpenStep Hardware that there ever is So bring out your NeXTstations, Cubes, and other machines running NeXTSTEP and OpenStep. And any accessories/software and more. A machine will be set up to image NEXTSTEP/OPENSTEP Software and Floppies. So bring that along too and see if we can add to the small list of software thats available for NeXTSTEP/OpenStep We can get them online with ease and add them to our Netinfo Domain.

12 years, 11 months

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RIP Wayne Green

by ethan.dicks＠gmail.com

Saw this in another list and hadn't seen it here yet. http://www.trs-80.org/wayne-green/ For those that might not recognize the name, he published several technical magazines such as "73", "Byte" (the first 4 issues), "Kilobaud", and "80 Microcomputing". I was only peripherally into the TRS-80 at the time, but I definitely read about them in his magazines. -ethan

12 years, 11 months

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Any interest in???

by me＠GarrettMeiers.com

Before I waste everyone's bandwidth (and time.. ooops, just did) advertising stuff I am hoping to sell to a new home... I was just curious if anyone was interested in the following: - 128K Apple III's. - One working, one parts, with a Monitor III display, and some manuals and system software. - LOBO Systems MAX-80's. - I have 3 or 4 of these, manuals, etc. - Altos 586 8086 based multiuser Xenix systems - Have 3 Hard drive models, 2 tape drives, and lots of terminals (Altos Branded/Wyse Mix), and some manuals. - Altos 8000 Systems - Have an 8000-10A, and a 8000-14A (10Mb and 42Mb), and some manuals (including preliminary). - Morrow Micro Decisions - Have two of these, one Morrow MDT-60 Display, lots of books/manuals, and some floppies. - Northstar Advantage - Have three Northstar Advantage systems. One with dust-cover. :) If there is interest in any of these, I can detail what I have available. I'm planning on attending VCF Midwest. I'd consider shipping the LOBO MAX-80's, as they are compact. Everything else is huge, and I don't want to deal with shipping, unless really necessary. Thanks, Garrett Meiers www.linkedin.com/in/theunixguy

12 years, 11 months

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Wanted: VT100 Terminal

by slandon110＠gmail.com

Looking for a VT100 Terminal or compatible VT-100 Terminal Will be at VCF/ECCC 2013 Thanks Steve

12 years, 11 months

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A couple of HP items of interest to the list

by innfoclassics＠gmail.com

These are from a favorite Eugene OR non profit thrift computer operation, Next Step. I think this is a HP1000 extender card. http://www.ebay.com/itm/Vintage-HP-Controller-Card-Not-Working-Selling-Gold… HP 2647A terminal keyboard - hard to find. http://www.ebay.com/itm/161100622009 HP 9134D HPIB Disk drive http://www.ebay.com/itm/151105367403 No connection with the seller other than as a shopper. They are not technically oriented so they are not good at answering technical questions. I visit often so I could inspect equipment. Paxton -- Paxton Hoag Astoria, OR USA

12 years, 11 months

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Speed8 application for Omni-USB

by philipp＠hachtmann.com

Hi folks, I've written a pair of little programs that makes high speed disk image transfers between a Linux PC and a PDP8 with Omni-USB board. Thanks to Lyle Bickley who pointed out a few weaknesses it has now reached a quite usable state. Enjoy RK05 images transferred in less than 50 seconds :-) For the interested: http://pdp8.hachti.de/?software/speed8 Kind regards Philipp -- Dipl.-Inf. (FH) Philipp Hachtmann Buchdruck, Bleisatz, Spezialit?ten Alemannstr. 21, D-30165 Hannover Tel. 0511/3522222, Mobil 0171/2632239 Fax. 0511/3500439 hachti at hachti.de www.tiegeldruck.de UStdID DE 202668329

12 years, 11 months

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Transformer help

by brain＠jbrain.com

I'm wondering if anyone on list is willing to listen to some somewhat complex (in my opinion) small power transformer questions (off-list)? I've exhausted my more straightforward options for a C64 PSU, and am trying a different idea to get to the end goal. But, transformers were and are not my strong suit, and I need to find a 1:5 or 1:6 power transformer that works on 50/60 Hz and can handle 9VA on the secondary windings. My apologies in advance for the interruption. Jim

12 years, 11 months

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walnut creek CP/M scan

by dgriffi＠cs.csubak.edu

I'd do this myself, but I don't remember where my copy is... Does anyone here have an original copy of the Walnut Creek CP/M CDROM in its jewel case? I need a high-resolution scan of the front insert and of the disc itself. -- David Griffith dgriffi at cs.csubak.edu

12 years, 11 months

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The things you find on ebay...

by rvag＠bluewin.ch

Dear Tony Duell Recently I stumbled across your "The things you find on ebay..." http://www.classiccmp.org/pipermail/cctech/2013-May/104291.html after I had discovered the same 'Matchbox' auction you are referring to. Pretty good guesses you made. The association PDP-8/E and OMNIBUS is correct. But yes there existed two full-sized buses DEC had rented for the WESCON 1970 show. But yes people (lets say mostly professionals) back then began to buy computers. But yes the label is original. And yes it was a promotion by DEC. Why not try http://www.ieeeghn.org:80/wiki/index.php/First-Hand:PDP-8/E_OMNIBUS_Ride to disclose this puzzle. Have fun! By the way, I very much appreciate your dedication to all this old stuff. Sincerely, Remo Vogelsang PS Please keep my email address confidential, thanks.

12 years, 11 months

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You know you are a dedicated classic computer nut when

by cruff＠ruffspot.net

? after attending to the most pressing matters, you relocate some of the classic computing gear you have been collecting for your future hobby efforts from the basement to higher levels to avoid the water percolating in at the basement floor seams with the foundation due to the unprecedented rains in semiarid eastern Colorado. I've measured 10.3" since the storm started on Monday. This represents about 55% of the normal yearly precipitation for Boulder. This is not a good way to break the drought. Looking on the bright side, at least I won't have to water the yard for the rest of the year.

12 years, 11 months

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Double sided 8" floppy in SA800 drive

by philip＠neoncluster.com

This may be a silly question, but I'm looking for confirmation that dssd (double sided single density) 8" floppies are usable in a sssd (single sided single density) drive such as the Shugart SA800. If so, can the floppy be manually flipped over and the other side also be read and written to, therefore having both side containing data? Phil philip at neoncluster.com Retro computing at: www.neoncluster.com

12 years, 11 months

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SCSI to IDE & 256 Byte Sector OS's

by lynchaj＠yahoo.com

Thanks Wayne! I appreciate all your great support on S2I project. HINT HINT all SASI/SCSI-1 hobbyists! We need some compatibility testing in the worst way possible. HELP! Thanks and have a nice day! Andrew Lynch -------------------------------------------- On Mon, 9/16/13, Wayne Warthen <wwarthen at gmail.com> wrote: Subject: Re: [N8VEM-S2I:242] FW: [N8VEM: 16146] SCSI to IDE & 256 Byte Sector OS's To: n8vem-s2i at googlegroups.com Date: Monday, September 16, 2013, 2:14 AM Hi Clem, The firmware does not currently support 256 byte sectors, but it would be trivial to do so. ?The firmware is still in a "testing" mode and I am just waiting for anyone to get to the point where they are able to start testing. ?It is working perfectly for me in multiple systems, but so far I am the only one that has tested it. ?As soon as someone gets to the point of testing a board, I will gladly update the firmware as needed. Thanks, Wayne On Sunday, September 15, 2013 6:55:21 PM UTC-7, Norby wrote:There is a jumper defined to select between 256/512 sector sizes transfers (U35-D3). Not sure if the FW supports such configuration at this time.????From: n8ve... at googlegroups.com [mailto:n8ve...@ googlegroups.com] On Behalf Of Andrew Lynch Sent: Sunday, September 15, 2013 6:42 PM To: n8ve... at googlegroups.com Subject: [N8VEM-S2I:239] FW: [N8VEM: 16146] SCSI to IDE & 256 Byte Sector OS's?Hi Clem,The folks on N8VEM-S2I might be able to answer this question.? I believe the S2I is able to translate between 256/512 sector sizes.? Maybe Wayne could comment further on the topic. Thanks and have a nice day! Andrew Lynch?From: n8... at googlegroups.com [mailto... at googlegroups.com ] On Behalf Of ClemFM Sent: Sunday, September 15, 2013 7:04 AM To: n8... at googlegroups.com Subject: [N8VEM: 16146] SCSI to IDE & 256 Byte Sector OS's?Just a thought...........?Could you add an option to select 256 byte sector/block drives? The technique often used is to then "pad out" or skip the second 256 byte block of each sector.?The card would then work with many legacy systems such as: TRS-80, BBC, Atari etc - they all use 256 byte sectors whilst a hardware solution would avoid patching OS's.?Patching is fine, however I much prefer to just "plug & play" so to speak............?Clem-- You received this message because you are subscribed to the Google Groups "N8VEM" group. To unsubscribe from this group and stop receiving emails from it, send an email to n8vem+un...@ googlegroups.com. To post to this group, send email to n8... at googlegroups.com. Visit this group at http://groups.google.com/ group/n8vem. For more options, visit https://groups.google.com/ groups/opt_out.-- You received this message because you are subscribed to the Google Groups "N8VEM-S2I" group. To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s2i+...@ googlegroups.com. For more options, visit https://groups.google.com/ groups/opt_out. -- You received this message because you are subscribed to the Google Groups "N8VEM-S2I" group. To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s2i+unsubscribe at googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.

12 years, 11 months

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Wanted: VAXstation 4000-90 PSU

by supervinx＠libero.it

Anyone has a spare VAXstation 4000/90 PSU? Mine is faulty: I could be able to repair it, no other technician could... Thanks! -- Vincenzo (aka Supervinx) --==ooOoo==-- My computer collection: http://www.supervinx.com/Retrocomputer --==ooOoo==-- You can reach me at: www.supervinx.com www.facebook.com/supervinx http://www.youtube.com/user/supervinx http://www.myspace.com/supervinx

12 years, 11 months

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Unnoobing my noobness (TECO on RT-11)

by rick＠rickmurphy.net

At 11:18 AM 9/15/2013, Sander Reiche wrote: >Jerome, > >Works like a charm! Thank you very much indeed! >But, I follow DEC-11-UTECA-B-D (PDP-11 TECO User Guide) and the part >on the >ET flag (page 78) doesn't state anything about lower/uppercase. Only >the EU >flag which I didn't get to work at all. >Where did you find this amazing piece of information? It's in the TECO Pocket Guide - here's the ET bits for TECO-11 (with zero bits ignored): Bit Value Initial Value 0 0 2 1 if terminal is a scope 4 1 if terminal has lower case input 128 1 Before TECO's prompt 512 1 If terminal is a VT52 and VT52 Support is available 1024 1 If VT11 is present and VT11 support is available EU is an output flag - if EU = 0, the terminal cannot display lower case so TECO flags lower case characters. If EU = -1, the terminal supports lowercase output. Another reference is the "Standard TECO" (sic) guide: <http://h71000.www7.hp.com/doc/73final/documentation/pdf/teco.pdf>http://h71000.www7.hp.com/doc/73final/documentation/pdf/teco.pdf Section 5.16 describes the ET and EU flags. 73, -Rick

12 years, 11 months

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Wanted: Odd and Interesting machines and old terminals

by slandon110＠gmail.com

Guys im looking for something Odd to add to my collection, a mini computer of sorts, something thats not mainstream like the apple stuff or my commodore stuff. Something that runs some flavor of unix. Ill be at VCFMW/ECCC with a ton of goodies for trade, or just let me know what you have. Im also looking for a VT100 Terminal or compatible Thanks Steve

12 years, 11 months

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VAXstation Monitor Cable Trouble

by cctech＠beyondthepale.ie

Fred wrote: > > >I have a BC18Z I have for connecting the VAXstation to the monitor, keyboard > > >and mouse. With this cable, a red hue across the whole screen flashes on and > > >off about once a second, the other colours are fine and the screen is > > >legible. There is also a thin dark line that scrolls up the screen > > >continuously. This happens on two different monitors. I don't think it is > > >the VAXstation itself either, because swapping with another cable the > > >problem goes away. > On Sun, 15 Sep 2013, Peter Coghlan wrote: > > Me too! > > I have a VAXstation monitor cable that does that too or something very > > like it. > > >I tested continuity of the red wire and it seems fine. Are there any > > >components in the keyboard and mouse connector block that could cause this? > > It's been a while since I looked at the problem and I don't know where the > > cable is now. I think I did a DC comparison between the bad cable and a > > working cable and failed to find any difference. > > Unfortunately, the only solution I could come up with was the same one you did, > > use a different cable :-( > > Would that be an issue that DC/continuity checking does not reveal > problems at higher frequencies, such as inductive coupling between wires, > etc.? > Seems plausable. Finding or making some sort of DA15 breakout device might be useful to track it down. Disconnecting each of the keyboard and mouse signals in turn might reveal if one of those is responsible. Just putting a scope on them might show which is a likely culprit. However, knowing which signal is responsible won't help much unless it can be disconnected permanently. There are keyboard and mouse connectors on the system unit of some models of VAXstation 3100 but not on the VAXstation 2000. Regards, Peter Coghlan.

12 years, 11 months

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Wierd AUI Connector on VAXstation 2000

by robert.jarratt＠ntlworld.com

I just collected a VAXstation 2000 that has an AUI connector on the back. The trouble is that the connector is a bit strange. It has screw holes like you might get for screwing in a serial cable or a video cable, rather than the locking slider that grips some studs on the cable you are connecting (or a transceiver in my case). Is it possible to get an AUI cable or a transceiver that will fit this connector or must I physically modify something I already have? Regards Rob

12 years, 11 months

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VAXstation Monitor Cable Trouble

by cctech＠beyondthepale.ie

>I have a BC18Z I have for connecting the VAXstation to the monitor, keyboard >and mouse. With this cable, a red hue across the whole screen flashes on and >off about once a second, the other colours are fine and the screen is >legible. There is also a thin dark line that scrolls up the screen >continuously. This happens on two different monitors. I don't think it is >the VAXstation itself either, because swapping with another cable the >problem goes away. > Me too! I have a VAXstation monitor cable that does that too or something very like it. > > >I tested continuity of the red wire and it seems fine. Are there any >components in the keyboard and mouse connector block that could cause this? > It's been a while since I looked at the problem and I don't know where the cable is now. I think I did a DC comparison between the bad cable and a working cable and failed to find any difference. Unfortunately, the only solution I could come up with was the same one you did, use a different cable :-( Regards, Peter Coghlan.

12 years, 11 months

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cctech Digest, Vol 121, Issue 18

by michael.99.thompson＠gmail.com

> > From: Kyle Owen <kylevowen at gmail.com> > Date: Sat, 14 Sep 2013 23:05:38 -0500 > Subject: Xebec Hard Sector Floppy System and Tennecomp Tape Drive > > Also, I haven't yet played with it, but I also have a Tennecomp tape drive > that uses radio-station-style 4-track "carts" to store data on serially. I > unfortunately do not have the controller card for it, hence my inability to > do much with it. I do have some tapes for it, however. > > Thanks, > > Kyle > The computer museum at the University of Stuttgart has a working Tennecomp tape drive connected to their Straight-8 and another newer 8. The RCS/RI group has a Tennecomp tape drive on their 8/I, but it is in unknown condition. -- Michael Thompson >

12 years, 11 months

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VAXstation Monitor Cable Trouble

by robert.jarratt＠ntlworld.com

I have a BC18Z I have for connecting the VAXstation to the monitor, keyboard and mouse. With this cable, a red hue across the whole screen flashes on and off about once a second, the other colours are fine and the screen is legible. There is also a thin dark line that scrolls up the screen continuously. This happens on two different monitors. I don't think it is the VAXstation itself either, because swapping with another cable the problem goes away. I tested continuity of the red wire and it seems fine. Are there any components in the keyboard and mouse connector block that could cause this? Regards Rob

12 years, 11 months

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Electronika 85

by ittybittybytes＠gmail.com

I will be putting my Electronika 85, a Russian clone of the DEC Pro 350 up for sale on eBay tomorrow ( Friday the 13th) at noon. It doesn't power up, but other than that it's in good condition. I have found the schematics and some technical documentation (in Cyrillic, of course) that will be available to the buyer. When I first got this computer around 9-10 years ago, I checked the power supply and I think is the culprit, as there was no juice at the leads at all. It has a very tiny fuse and it;s impossible to tell if it may be at fault. The last one on Ebay was up for sale at around 3000-3500 and was a working one complete with monitor and keyboard. This one is waaaaay more reasonable, even if it is not working. I'll post the auction reference number in the am when I finish up the auction listing in the morning. Cheers tomP

12 years, 11 months

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Trying to contact Hans-Ulrich Hölscher aka vaxorcist

by robert.jarratt＠ntlworld.com

Over recent months I have been trying to get in touch with Ulli. Has anyone heard from him recently? Regards Rob

12 years, 11 months

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Esprit 350C manual?

by brain＠jbrain.com

One of these nifty Esprit 350C terminals Cindy was noting a week or so ago has arrived, but I can't find a manual online anywhere. I have figured out how to get to the config screen, but can't figure out how to get the terminal to try to connect to an ip address. Anyone have a manual or know how to do that? Jim -- Jim Brain brain at jbrain.com www.jbrain.com

12 years, 11 months

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Xebec Hard Sector Floppy System and Tennecomp Tape Drive

by kylevowen＠gmail.com

I recently acquired three of these Xebec XFD-108 dual-drive units along with three PDP-8/Ms and a PDP-8/E. It looks like I've got one 8/M and drive fully booting. However, I also seem to have a lot of bad media. Here's an album of the haul: http://imgur.com/a/fDVDH I'm trying to find some more info on the Xebec drive units. They use Memorex drives, which date to 1974 or so. These use 32 hard sector floppies, with the sector holes on the outside. I'm currently writing some software to back up these floppies and will try to integrate it with David Gesswein's dumprest utility so I can eventually get a handler working in simh. For now, though, I'm trying to just back up the floppies as to protect against further data deterioration. The floppies are actually configured for 10 sectors, oddly enough. This gives 640 256-word blocks per disk. Has anyone used these early Xebec drives? In my little bit of documentation, I seem to be missing the chapter on the device handler for OS/8. I have a few booting floppies right now, so I should be able to get the handler from one of those, but just in case... It would also be nice to have the FORMAT program for this system, which is yet again something else missing from my docs. Also, I haven't yet played with it, but I also have a Tennecomp tape drive that uses radio-station-style 4-track "carts" to store data on serially. I unfortunately do not have the controller card for it, hence my inability to do much with it. I do have some tapes for it, however. Thanks, Kyle

12 years, 11 months

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Flashwriter II card in IMSAI 8080

by philip＠neoncluster.com

Has anyone had any experience using 'Vector Graphic Extended Monitor 4.x' in systems other then a Vector Graphic machine? I have a Flashwriter II card that I want to install into an IMSAI, and I was wondering if VG's Extended Monitor would be a good choice. The main reason to use the the Vector Graphic Extended Monitor would be because it come with the drivers for the Flashwriter II card. Thanks Philip philip at neoncluster.com Retro computing at: www.neoncluster.com

12 years, 11 months

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Repairing Mac128K board - memory problems

by barythrin＠gmail.com

You could stack the memory chips you're curious about without needing to desolder. May save you some time poking around.

12 years, 11 months

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HP 9830 parts help and Infotek identification

by derschjo＠gmail.com

So I took a chance on an eBay auction for a really beat up HP 9830A desktop (and spent more than I probably should have, alas),and it arrived on my doorstep this evening. This machine has taken a beating and has clearly been salvaged from; I'm missing the main CPU and RAM boards, andseveral keyswitches are broken off (and long gone.) So first: - It's a long shot but does anyone out there have any spares for this machine? (CPU and RAM, but also plastic parts like the plastic keyboard plate which have been utterly destroyed would be nice...) - The keys look kind of similar to the ones on my 9825 -- anyone know if they use the same keyswitches before I dig mine outof storage and take the time to open it up to see? (Just looking for possible option for sourcing keys, finding a parts-only 9825 keyboard is likely to be much easier than finding a spare 9830...). Second: It looks like this thing has beenupgraded with an Infotek Systems RX-30, and an MP-30 + FP-30 boardset (so perhaps I'm not missing the CPU after all?)But I'm unsure that it's complete -- in particular it looks like I'm missing the larger of the two boards here: http://www.hpmuseum.net/images/Infotek_FP30-48.jpg, while I have both of the MP-30 boards. I'm guessing the missing board is pure unobtanium at this point... however, as is clear in the photo it's labeled as "BASIC ROM II" and only contains what look like a few mask ROMs. My understanding from reading the docs I've found is that the FP-30 is a replacement processor (and those two boards in the picture don't look like much of a processor to me) and the MP-30 is an optional I/O processor that goes with it -- the "Mass Memory Interface Processor" (pics here - http://www.hpmuseum.net/images/Infotek_MP30-45.jpg). Can anyone confirm what boards are supposed to be present for a complete CPU set? The presence of four 2901's plus a bunch of EPROMs on the MP-30 boardset make me wonder if there's more to the MP-30 than just I/O... Thanks as always, Josh

12 years, 11 months

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Wierd AUI Connector on VAXstation 2000

by cctech＠beyondthepale.ie

> >> >> I just collected a VAXstation 2000 that has an AUI connector on the back. >> The trouble is that the connector is a bit strange. It has screw holes like >> you might get for screwing in a serial cable or a video cable, rather than >> the locking slider that grips some studs on the cable you are connecting (or >> a transceiver in my case). >> >> >> >> Is it possible to get an AUI cable or a transceiver that will fit this >> connector or must I physically modify something I already have? > >Some machines did indeed have screwposts, not the sliding clip. PERQs >did, for example. > >If the connector is a DA15, it is very likely that it is the standard >wiring (again PERQs were), the difference is the locking system only. > >There seem to be 2 solutions : > >1) Replace the screwposts with the locking clip and screws. I _think_ >those locking kits are still available, although mot easy to find or >cheap. Look inside the machine before you start dismandling anything to >see if the posts go into tapped bushes in the socket or if there are >loose nuts ot worry about. > It might be possible to scrounge locking clips off old dead ethernet cards >from the junk box. With any luck, the thread of the screws might be the same as the thread of the screwposts. > >2) Make up a cable. Maingt the AUI drop cable is not easy as the raw >cable is 4 twisted pairs, the power pair being thicker wire than the >other 3. When I was looking for some about 20 years ago I couldn't find >anyone who would sell me less than a 100m reel (not cheap!). I finally >found a freindly networking person who gave me an 'offcut'. > There is at least one more option - get a readymade cable designed for use in these cases. I came across a hoard of these by DEC once but sadly, not knowing what they were for, I only saved one sample. It is a BNE4E-02 - I suspect the 02 is the length as it is 2m long. The connector at the machine end is right angled. I also use it with my Alphaserver 2100 which has the same issue. Maybe someone else was sensible enough to save more of these cables? Regards, Peter Coghlan.

12 years, 11 months

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S-100 6502 CPU V2 PCBs working fine

by monahan＠vitasoft.org

Just wants to let everybody know I assembled the "production version" of our Master/Slave S-100 6502 CPU board. Delighted to say it went together fine with no hardware problems. I have written it up here:- http://www.s100computers.com/My%20System%20Pages/6502%20Board/6502%20CPU%20B oard.htm with some step by step instructions (bottom of the page). Now could somebody write software for it! John John Monahan Ph.D e-mail: <mailto:monahan at vitasoft.org> monahan at vitasoft.org Text: <mailto:monahan at txt.att.net> monahan at txt.att.net From: n8vem-s100 at googlegroups.com [mailto:n8vem-s100 at googlegroups.com] On Behalf Of Andrew Lynch Sent: Friday, September 06, 2013 1:50 PM To: n8vem-s100 at googlegroups.com Cc: cctalk at classiccmp.org Subject: [N8VEM-S100:1880] S-100 6502 CPU V2 PCBs have arrived! Hi The S-100 6502 CPU V2 PCBs have arrived! http://www.s100computers.com/My%20System%20Pages/6502%20Board/6502%20CPU%20B oard.htm http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder <http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=S-100%206502%2 0CPU%20board%20V1> &param=S-100%206502%20CPU%20board%20V1 All the pre-ordered boards have been sent to their builders. There are still a few boards left in case there are any late comers or those builders who did not want to pre-order. The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your board(s) right away! Please contact me if you have any questions. Thanks and have a nice day! Andrew Lynch -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s100+unsubscribe at googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.

12 years, 11 months

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IBM Thinkpad 2645-4A0 available

by stephane.tsacas＠gmail.com

Hi, If you're interested by an 1999 IBM laptop, Thinkpad 600E (2645-4a0) drop me a mail. I cannot test it because I removed the hard disk years ago. The power supply comes with it, but I don't have mains power cable. It was running Linux when I removed the hard drive. -- Stephane

12 years, 11 months

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Osborne seeking home

by drb＠msu.edu

Folks, I don't need another Osborne just now, but perhaps some list denizen does. Contact Kay directly if interested. De ------- Forwarded Message From: "Kay Kruse-Stanton" <kkstantn at pressenter.com> Subject: Osborne computer Date: Wed, 11 Sep 2013 11:14:37 -0500 Hi - Do you still collect old computers? I have an Osborne that needs a new home. It worked perfectly when I put it on the shelf to gather dust. Please let me know if you might be interested in it. Thanks - Kay Stanton, Menomonie, WI ------- End of Forwarded Message

12 years, 11 months

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accepting pre-orders for S-100 buffered prototyping board PCBs

by LYNCHAJ＠YAHOO.COM

Hi http://www.s100computers.com/My%20System%20Pages/Prototype%20Board/Prototype %20Board.htm I am going to reorder another batch of the S-100 buffered prototyping boards. If you would like to get one or more of these boards please do the new usual pre-order. I will set aside your board so you get them as soon as they arrive. The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will reserve your board(s). Thanks and have a nice day! Andrew Lynch

12 years, 11 months

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accepting pre-orders for S-100 80286 CPU board PCBs

by LYNCHAJ＠YAHOO.COM

Hi Here is a web page to describe the S-100 80286 CPU board http://www.s100computers.com/My%20System%20Pages/80286%20Board/80286%20CPU%2 0Board.htm From: Andrew Lynch [mailto:LYNCHAJ at YAHOO.COM] Sent: Thursday, September 12, 2013 7:27 PM To: cctalk at classiccmp.org Subject: accepting pre-orders for S-100 80286 CPU board PCBs Hi The S-100 80286 CPU board is ready for "production". If you would like to get one or more of these exciting new S-100 80286 CPU boards please do the new usual pre-order. I will set aside your board so you get them as soon as they arrive. The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will reserve your board(s). Thanks and have a nice day! Andrew Lynch

12 years, 11 months

1
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dec lk201 keyboard plug and receptacle

by emu＠e-bbes.com

Hi all, probably a stupid one, but we have so much fun here discussing the right nomenclature of connectors ;-) I'm looking for the right jack/receptacle for a lk201 keyboard for an keyboard adapter. so, is this a "RJ11 6p4c"? Thanks

12 years, 11 months

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4mm DAT repair recommendations?

by IanK＠LivingComputerMuseum.org

Hi folks, I have three external DDS2 DAT drives for a Unisys machine I've been restoring, and none of them work. The original owner of the machine warned me they were not reliable, but I've actually found them quite reliably non-functioning. I performed the prerequisite Google search for information on repairing these drives, and instead I got results about services who repair them. I'm all for that, but of course which one to pick? So here I am, tapping into the Group Wisdom. Anyone have direct experience with such a firm in the United States? Those to avoid are every bit as useful as those you recommend. Thanks -- Ian

12 years, 11 months

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For Trade: Original Apple II for NeXT Cube System

by slandon110＠gmail.com

Im looking for a NeXT Cube System I have my original Apple II system for trade Comes with a Matching 9inch B&W Monitor, Disk II Drive, ThunderClock Plus card, Parallel Interface Card, Matching Apple Dot Matrix Printer 100 Will be at VCFMW/ECCC with the machine on display

12 years, 11 months

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XT-IDE V2 assembled and verified working

by LYNCHAJ＠YAHOO.COM

On VCGM, item # 115004 Thanks and have a nice day! Andrew Lynch

12 years, 11 months

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accepting pre-orders for S-100 80286 CPU board PCBs

by LYNCHAJ＠YAHOO.COM

Hi The S-100 80286 CPU board is ready for "production". If you would like to get one or more of these exciting new S-100 80286 CPU boards please do the new usual pre-order. I will set aside your board so you get them as soon as they arrive. The PCBs will be $20 each as per the usual arrangement. Shipping in the US is $3 for a single PCB and $2 for each additional PCB. Shipping internationally is $10 for a single PCB and $3 for each additional PCB. This is for the bare basics USPS first class postage with no tracking or insurance. The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will reserve your board(s). Thanks and have a nice day! Andrew Lynch

12 years, 11 months

1
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Mac Twiggy article

by jws＠jwsss.com

This is about a restored mac and meeting " CHM http://www.siliconbeat.com/2013/09/11/apples-woz-guy-kawasaki-andy-hertzfel…

12 years, 11 months

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Simple NeXTSTEP/OpenStep Networking- Guide to getting it connected to the internet

by slandon110＠gmail.com

Here is a howto to show you how to get your NeXTSTEP/OpenStep Boxes online with ease. I wrote it with simplicity in mind, following this howto you should have your box online in about 10 minutes Getting Your NeXTstation On the Internet- Applies to NeXTStep/OpenStep on Black and white hardware along with Sparc/PA Risc Putting OpenStep 4.2/NeXTStep 3.3 online is relatively easy Step 1. Enable Root Access Go into Prefs Under NeXTApps and then click the lock icon, create a password, this is the password for the Me User. Once thats done, Logout. You will be at the login screen Login as root with no password Step 2. Run Simple Network Starter Make sure the radio button Use The Network but dont share administrative data is selected. Then Enter the IP address of your choice. Once thats done click network options and enter Router, Netmask and broadcast address of your network. Then Click Configure, The system will reboot Upon Reboot login as root again Open a terminal window and type the following command pico /etc/resolv.conf Enter the following in Pico nameserver 8.8.8.8 nameserver 8.8.4.4 I used the google public DNS servers for an example, but any DNS Server will work CTRL -O to save the file CTRL- X to exit pico Then Reboot your system. Again Login as root Open A terminal window and type ping google.com. At this point you should be getting a response from google. And thats it, that is all there is to getting your NeXTstation/OpenStep/NeXTstep Powered Boxes online.

12 years, 11 months

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Selling Decwriter iv?

by aihelena＠mit.edu

Hello, I recently acquired a new in box, still sealed Decwriter IV from a lab cleanout. I'm a typewriter enthusiast, and didn't know that it was not a typewriter. Would it be worth attempting to sell, or should I just hook it up to a computer somehow and log my every keystroke for shiggles? Or use it as a bizarre dot-matrix typewriter? Sorry if this is the wrong place to post this; I have no idea what I'm doing with this machine. Helena

12 years, 11 months

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WTB: IMSAI blue paddles

by philip＠neoncluster.com

Yes, yet another WTB from me. This time I'm looking for some original Blue IMSAI paddles. Thanks Phil philip at neoncluster.com Retro computing at: www.neoncluster.com

12 years, 11 months

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Soft Sectoring a RK05

by shadoooo＠gmail.com

Hello. Unfortunately I don't have a RK05, even if I REALLY would to know somebody in willing to sell one... Anyway, I followed the former and the latter post about PLL to sync 12-sector cartridges as 16-sector, but I have some question about how the circuit should work. In the hardware sectoring, the pulses is needed to identify in precise way the physical boundary between one sector and the neightbors. Clearly the 12-sectors will have 12 dents, while the 16 -sectors 16 dents.. plain. Now I could take a signal coming from a 12-sectors cartridge sensor, pass it through a PLL and produce a signal with 16/12 times the frequency, that is synchronized with the original signal... could it work? Maybe I missing something, but I think is not that easy... In fact, you expect to produce 4 pulses every 3 pulses of the reference signal. As the 4/3 ratio is not an integer multiple, only 1 every 4 pulses will be aligned with the hardware pulses, thus we would have a phase uncertain of 1/3 of physical hardware sector. Probably, if the cartridge is started and synchronized, it could continue to work correctly until the whole stuff is stopped and restarted. In this situation it could work in 33% of the cases, being misaligned of 1/3 or 2/3 of sector in remaining cases.. To fix it all, there would be a way to generate a secondary pulse to identify a particular dent. In this way, the regenerated sectors would always synchronize to the very same phase, removing the phase uncertain... Does it sound correct? Andrea

12 years, 11 months

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Indiegogo campaign for new computer museum in Boston/Cambridge

by jim＠deitygraveyard.com

Just saw this on LCM's Facebook page: http://www.indiegogo.com/projects/digital-den-org Only 13 days left! Jim

12 years, 11 months

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WTB: Northstar S-100 floppy disk controller board

by philip＠neoncluster.com

Hi all, Just wondering if anyone has a Northstar S-100 floppy disk controller board that they aren't using. I'm looking for one for a SOL-20 project that I'm working on. Much thanks in advance. Philip

12 years, 11 months

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RK05 pack (not drive!) conversion

by hachti＠hachti.de

Hi folks, I'm currently sorting parts of my stuff. And I found out that I have less RK05 packs with 16 sectors (PDP8) than drives. I have some 12 slot packs as well. But I could need more 16 sector packs. I have access to some masses of 12 sector packs... Probably I'm not alone with that situation. If there's enough interest it could be possible to machine new center hubs for the packs. With custom sectoring. I'm quite sure that the biggest part of the cost would be the programming and setup of the CNC that turns the hubs. Then changing the sectoring to customer demands will probably cheap and easy. So the idea of making new center hubs could be quite interesting for the folks who need the same pack style for other computers with other sectoring. I know of IBM 1130 and some HP computers using the same packs which were originally an IBM idea. Any comments? Interested? Your feedback helps me to decide if it's reasonable to do it or better put the idea into the trash. An important point would be the amount of cash one is willing to pay for one center hub. Kind regards Philipp --

12 years, 11 months

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FYI: PDP10 KL10 MF20 256Mword Mem Module on ebay

by aswood＠t-online.de

Hi, I'm reducing my collection: ebay 251334024585 Andreas

12 years, 11 months

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Spamcop test

by aswood＠t-online.de

I apologize, but This is a spamcop test, since a previous email to cctalk has been blocked by an intermediate mail relay or the finally receiving mail server using the spamcop blacklist. Andreas

12 years, 11 months

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Looking for Winchester S-100 board documentation

by new_castle_j＠yahoo.com

Hi all, first time for me to post. Does anyone out there have a manual for a L/F Technologies A1100 Winchester disk controller board? This board may also be branded IMS International. A picture of this board can be seen here www.s100computers.com/Hardware%20Folder/IMS/Other%20Boards/Other%20Boards.h…. Thanks Jonathan

12 years, 11 months

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DEC boards

by useddec＠gmail.com

Here is a partial list of boards I have pulled and are ready to ship. The non -dec and PDP8 will follow at some point, as will the q-bus boards. I know I have M3106s, M3107s, and M8043s (DLV11-Js) handy. Feel free to ask questions and make offers. Shipping within the US is $10 for up to 10 quad boards, $15 for up to 10 hex quad boards, and $20 for up to 10 F, L, or M series boards. Shipping outside the US can be worked out. shipping from 61853. Thanks, Paul F1002 X 2 F1003 F1004 F1005 F1006 F1007 X 2 F1011 X 2 F1013 F1021 X 6 L0007 L0008 L0011 L0016 L0101 X 4 L0102 L0105 X 2 QUAD BOARDS M3104 X 13 M7164 X 9 (1 w/ KDA50 bulkhead) M7165 X 10 M7168 X 12 M7169 X 6 M7196 X 2 M7251 X 12 M7258 X 4 M7264 X 9 M7454 X 4 M7547 X 1 M7602 X 3 M7606 X 1 M7608 X 1 M7620 X 5 M7621 X 10 M7706 M7800 X 1 M7810 X 3 M7822 X 9 M7856 X 6 M7950 X 1 M7957 X 27 M8003 X 1 M8012 X 7 M8012 ? YA X 13 M8013 X 5 M8014 X 5 M8053 X 2 M8061 X 5 M8064 X 1 M8067 X 22 M8081 X3 M8151 X 1 M8152 X 1 M8188 X 4 M8190 X 2 M8290 X 2 M8256 X 1 M8639 X 2 M8639 ? YA X 4 M8639 ? YB X 6 M8658 ? YA X 1 M8901 X 1 M8901 ? YC X 4 M8902 X 2 M8902 ? YA M8904 X 2 M8904 ? YA M8905 X 2 M8905 ? YA M8905 ? YB M8906 X 4 M8951 X 1 M8953 X 3 M8955 X 1 M8957 X 1` M8960 X 1 M9060-YA X 3 Hex boards G066 1 M3105 DHU11 2 M3110 10 M3111 10 M7094 11 M7095 6 M7096 6 M7097 6 M7098 2 M7134 5 M7161 ? YA 1 M7289 1 M7293 1 M7294 1 M7295 1 M7485 1 M7486-YA 1 M7486 2 M7521 Delua 1 M7684 1 M7762 2 M7772 4 M7773 4 M7774 4 M7775 2 M7776 3 M7786 3 M7787 2 M7792 12 M7793 12 M7814 DZ11 3 M7819 45 M7847 20 M7867 DUP11 ? DA 7 M7872 4 M7873 1 M7874 5 M7875 3 M7876 3 M7877 3 M7900 1 M7901 1 M7902 2 M7903 3 M7904 2 M7912 1 M7982 2 M7983 4 M7991 2 M7992 2 M7993 3 M7994 2 M7995 2 M7996 2 M7997 2 M8103 1 M8105 1 M8107 1 M8112 1 M8113 1 M8115 1 M8126 1 M8147 2 M8148 3 M8149 2 M8150 2 M8191 1 M8202 ? YE 2 M8203 7 M8204 5 M8206 1 M8207-RA 6 M8396 10 M8398 7 M8722 11 M8728 5 M8743 20 M89031 1 M8903 ? YA 2 M8909 2 M8909 ? YA 32 M8910 1 M8914 2 M8916 1 M8933 3

12 years, 11 months

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