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

by leec2124＠gmail.com

HI all, I have started putting together some overview videos documenting my classic HP3000. Purpose is to just give people a flavor of what classic mini-computing was like in the 1970s/1980s. My first video on the HP7974 tape drive is posted at Youtube: http://youtu.be/mDnNZuDNJfg Production values are *low* - just me riffing on the item, shot with my cell phone camera, and edited with iMovie. I just want to get some done while I have time. Take a look, suggestions appreciated. Thanks! -- Lee Courtney

12 years, 1 month

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FS: Mac Mini Core 2 2.0ghz $275 shipped

by slandon110＠gmail.com

Just trying to get my old server a home Mac Mini Early 2010, Core 2 Duo 2.0ghz 4GB RAM 120GB HDD $275 Shipped Thanks Steve

12 years, 1 month

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MS-DOS 2.00 for GRiD Compass archived

by derschjo＠gmail.com

Hey all -- Finally snagged a copy of the elusive MS-DOS 2.0 for the GRiD Compass with an 1101 I got last week. Imaged it using ImageDisk; you can grab it at: http://yahozna.dyndns.org/computers/GRiD/ I've verified that the image boots properly on my 1129. I also got a complete copy of Lotus 1-2-3 for the Compass but the disks have lots of errors and I'm having trouble getting good reads on them, I'm going to try a few different drives and see if that helps... And if anyone has a copy of GRiDBASIC for the Compass, drop me a line. I got the manuals for it with the system, but no software... - Josh

12 years, 1 month

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Finally replaced the leaky caps on my Mac Classic II

by terry＠webweavers.co.nz

Not that elegant perhaps, but does the job... http://www.classic-computers.org.nz/blog/2014-05-24-Classic%20II%20capacito… Terry (Tez)

12 years, 1 month

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LSI-11 CAMAC module on ebay

by tiggerlasv＠aim.com

On Sat May 24 19:36:25 CDT 2014, St?phane Tsacas wrote: > For the PDP-11 collector ? > http://www.ebay.ca/itm/CAMAC-Plug-In-Kinetic-Systems-3823-LSI-11-Microproce… > -- > Stephane These are CAMAC modules that have a dual-wide qbus connector on-board. An actual DEC board plugs into the slot. There is a black metal cover that holds the board in place. The 3823 housings carry the 11/23 CPU, while the 3824's carry the support modules (serial lines, memory, etc.) The problem is -- with the metal cover in place, you can't tell what you're getting. The DEC module could be missing. It could be an 11/23 without an MMU. Or, you might end up with just the shell, and no DEC board at all. For the 3824 modules, with the cover in place you can't see what kind of module is installed. So, you could spend $50, and get a crummy M8044, or you might end up with an M7195 at a bargain price. Unfortunately, many sellers only show the front and back, so it's best to ask them questions before buying. T

12 years, 1 month

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LSI-11 CAMAC module on ebay

by stephane.tsacas＠gmail.com

For the PDP-11 collector ? http://www.ebay.ca/itm/CAMAC-Plug-In-Kinetic-Systems-3823-LSI-11-Microproce… -- Stephane

12 years, 1 month

2
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[Simh] write errors attempting to install 4.3BSD on vax; simh from git

by brad＠heeltoe.com

On 5/22/14, 8:15 PM, Mark Pizzolato - Info Comm wrote: > On Thursday, May 22, 2014 at 1:21 PM, Brad Parker wrote: >> ... >> It looks like the driver is trying to write past the end of the disk; >> but the rq code in simh is not seeing that. >> It does not seem to be throwing any errors. > A driver which trys to write beyond the end of the disk will cause the simulation to return an error to the driver, but won't blow up in the simulator. Real software could have done the same thing and the hardware would merely have returned an error just like the simulated device does. Right. the mscp emulation code is not returning an error, near as I can tell. That was the first thing I looked for (i.e. is the request lbn > maxlbn) > Debugging within the simh device simulation generally requires significant detailed knowledge of how the guts of thing are working. That said, you can always learn. yes. I've done a lot of work with simh internals in the past. I've used it for co-simulation with RTL on about 4 projects. I've just never used the debug feature. I'll try the set dev debug; I guess I was hoping to learn exactly which bits to set to monitor the disk i/o. I tried creating different size disk images with "dd", even ones which were too big. It didn't help or change anything. I tried using an ra82, but the 4.3 release I have won't accept that, only an ra81. Near as I can tell the UWisc 4.3BSD has a hard coded partition table and the kernel driver is seeing something that is causing it to return an error. I know something about MSCP and I know how the kernel driver works, so worst case I'll create a new kernel with some printf's in it and figure it out. I guess I was hoping I could crib off someone else's work :-) Your comment about vmb.exe is interesting. I'm not having any problem bootstrapping, so I'm going to guess that's not the issue. My current guess is that the ra driver (MSCP) is getting confused based on something which pdp11_rq.c is telling it. -brad > see "HELP dev SET" (i.e. HELP RQ SET) > > If you think the newfs command is trying to write beyond the end of the disk, you could avoid that by using a bigger disk than what you mention in the 'newfs' command (i.e. make rq0 a RA82... > >> I also tried a stock 4.3BSD distribution and I see exactly the same >> behavior. >> >> My memory is dim on where the partition info is, but I think in this >> case it's hard coded in the unix kernel. >> >> I might go back and try some very old simh vax releases, since it seems >> like this use to work. If anyone has any ideas or insight, I'm all ears. > As it turns out, there were issues with some newer BSD variants on older VAX models. No one had actually done an install on one of these older machines once they started working with MicroVAX systems (MicroVAX II and MicroVAX III (CVAX)). We discovered a bug in the newer versions of boot block code when booting an older VAX. I have a version of VMB.exe which can work with either the old paradigm or the broken one and let these older systems boot these various versions. You haven't gotten that far, so even if the problem I'm talking about actually affects the 4.3 system you're working with you wouldn't have noticed yet. > > - Mark >

12 years, 1 month

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IBM 5170 substitute hard disk??

by cclist＠sydex.com

On 05/19/2014 01:34 PM, Enrico Lazzerini wrote: > Hi, I have an old IBM 5170 with motherboard Type 1 without any old hard > drive. > > I could can also reprogram the EPROM system to enter different geometries of > disks, but was wondering, how could I possibly replace the disc with a > cf-IDE40 adapter like this: > http://www.idotpc.com/TheStore/pc/catalog//products/accessories/cfide401big. > jpg > <http://www.idotpc.com/TheStore/pc/catalog/products/accessories/cfide401big. > jpg> Thanks for any suggestions. You're going to need an ISA IDE adapter with its own BIOS to use with an IDE drive or an IDE-to-CF card adapter (Promise made some of those). You might also be able to use a BIOS-less IDE adapter if you use a DDO (dynamic driver overlay). Here's another option: http://www.lo-tech.co.uk/wiki/XT-CF-lite Note that you'll still need a floppy controller. Hope this helps, Chuck

12 years, 1 month

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simh PDP-11 with xterm Tektronix 4014 emulation

by kylevowen＠gmail.com

I was given some DEC BASIC source code that was once used on a PDP-11/40 at Auburn University. It was coupled with either a 4010 or 4014 and played a graphical game of golf. That is, it would draw the shape of the green. I've set up simh booting RSTS/E from here ( http://www.eecis.udel.edu/~mader/delta/downloadrsts.html) and am currently running xterm in Tektronix emulation mode. However, all I see when executing the program is garbage, as if the terminal emulator is never escaping to graphics mode. I've tested it separately with the escape character and the garbage seen by means of "cat"-ing a hex-edited file to the screen, with the first character being ctrl-GS. Here are some pictures of the progress: http://imgur.com/a/thaHr I understand there are apparently some limitations to xterm's Tektronix emulation. I read somewhere that the point-plot mode was not implemented, if I recall. Are there other limitations that I should be aware of? If anyone has a 401X and can try this program out on "the real deal," I can supply you with the source code. Bonus points for having four RK05s and an 11/40 to tie it to! Here was the original system: http://i.imgur.com/51SO3vC.jpg (the 11/40) and http://i.imgur.com/VuUPM26.jpg (Tek terminals on left) Thanks, Kyle

12 years, 1 month

4
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Software replacement for an ASR33 and PDP8

by marco＠familie-rauhut.eu

Hello together, the restoration of my PDP-8 and TU56 going forward. Many PDP 8 machine tests are OK. The TU56 come slowly back to life. My current problem is, that i do not own a ASR33. Or is it no Problem? I testet the M8655 with the echo and printer test like in the smal computers handbook described. All is working fine. I see readable characters in cutecom on my linux desktop. With the cutecom i also send the binloader and the testprograms to the PDP8. There i have no problems too. But... some maindec testsoftware is doing printouts on the Teletype witch i canot read on cutecom. Exactly the same happens, if i bootstrap software witch come on tape with the tapedrive. Exampe hexdump of the output from software on tape (generated with cutecom): 00000000: 00 ff bf b0 b0 ae b0 b0 20 c0 20 b1 b1 ae b3 b0 00000010: 20 8d 8a aa aa c7 8d 8a 8d 8a 8d 8a 8d 8a c4 c5 00000020: c3 d4 c1 d0 c5 a0 d3 d9 d3 d4 c5 cd a0 c4 d4 a3 00000030: b4 8d 8a 8d 8a c2 c9 ce c1 d2 d9 a0 cd cf ce c9 Is there an existing software witch can act like a ASR33 for typing and printing , or i got to write my own ? Many thanks to all who help me again and again..... Marco Rauhut * Deutsch - erkannt * Englisch * Deutsch * Englisch * Deutsch <javascript:void(0);>

12 years, 1 month

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Purpose of a museum (was Re: Buying something from a museum)

by isking＠uw.edu

On Sat, May 17, 2014 at 8:42 AM, <cctalk-request at classiccmp.org> wrote: > > Message: 6 > Date: Fri, 16 May 2014 21:06:32 +0100 (BST) > From: ard at p850ug1.demon.co.uk (Tony Duell) > To: cctalk at classiccmp.org > Subject: Re: Buying something from a museum (was Re: Whats in a > straight 8 > Message-ID: <m1WlOOs-000J4ZC at p850ug1> > Content-Type: text/plain > > [Telecopier RX400] > > > > > > 1) My machine origianlly had the fan/filter unit on the battom, but > this > > > was remvoed by a previous owner. I am therefore missing the base plate. > > > Could tooul let me look at the udnersid of the machine, or tell me if > > > this plate is metal or plastic (or soemthing else) and if metal, is it > > > magnetic > > I am pretty sure if the machine was in MOSI and in accessible storage > > that would be possible. > > Many items are in in-accessible storage....which is a different kettle > > of fish... > > [snip] > Incidnetlaly, the last tiem I went ot the London science museum I left in > tears. Not jsut becuase there is so little there. Or that the > descriptions are dumbed down, and in many cases give the wrong sort of > information (I do not mean the information is factually wrong, it is not. > But for example a Model 7 Avometer [1] is described as being mase of > Bakelite. This is true, but IMHO, the important thing about that > instrument is what it measues and how.Now what the case is made of. No my > real moand is that it is not a science meusum. There is far too much > about the human aspect of a artefact, and that is not science. One reason > I studeid science is that it is, in general, independant of people > (mathemantics is aguably independant of the universe, but I wasnt' clever > enough for that). When I think back to wha the museum was like 30-40 > eyars ago, I weep. > > > I disagree strongly with your statement, "There is far too much about the human aspect of a [sic] artefact, and that is not science." Technology is a human behavior, and preserving the artifact (US spelling) but not its cultural context is telling only a small part of the story. That is my concern with much that is written as "computer history": it is purely about the construction and functioning of an artifact but fails to convey that contextual component. Such "internalist" histories are not without value, but we do a disservice to the future if we stop there. Equally incomplete are "externalist" histories that speak of nothing but social response to technology without the context of providing the reader with an understanding of the technology itself: this is seen often in hand-wringing essays that demonize "the computer" as a source of all social ills. A contextual account that relates both the nature of the technology and the social context in which it is shaped, as well as how its creation shapes the society in which it is created, is a basis for a meaningful and useful discourse. It is interesting to me that the majority of historical writing about the computer is internalist (several historiographers have so noted and I concur) and yet the "big story" of the computer is how it has changed human society swiftly and dramatically. In contrast, the book "Technology's Storytellers" analyses the first twenty years of the journal Technology & Culture and finds that in a broad discussion of technology the majority of work is contextual. Why do computer historians seem to describe but not interpret? Finally, a museum of technology may be a very different beast than a classic, archival museum that puts things in cases and writes little signs about them. Indeed, a museum of functional computers is a collection of artifacts that speak in their own voices. Of the museums I have visited, I feel TNMOC and the original IBM museum in Sindelfingen have done the best job of recognizing and highlighting this. (I have not seen the IBM museum since it moved, so I cannot comment on its current state.) IMHO. -- Ian S. King, MSIS, MSCS Ph.D. Candidate The Information School University of Washington Madness takes its toll - please have exact change.

12 years, 1 month

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Anyone Remember the Up Yours BBS in Kalamazoo Michigan

by slandon110＠gmail.com

Guys looking to see if anyone remembers the Up Yours BBS in Kalamazoo Michigan, The guy I got the amiga from ran a big warez BBS. Turns out this is how he got all this software and why he had the MO drive in the machine. Thanks to some research on IRC we figured out what it was. Now just waiting to see whats on the carts Steve

12 years, 1 month

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Eyelet size on DEC PDP8/11/etc boards

by cramcram＠gmail.com

Anyone on the list happen the know the diameter and length of the eyelets that are used to fasten handles onto DEC PDP-X boards? Thanks, Marc

12 years, 1 month

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DEC RX8E Device Code

by michael.99.thompson＠gmail.com

The RX8 Maintenance Manual shows the "Standard" Device Code for the RX8E controller as 70. I looked through the OS/8 RX01 handler source and it shows the Device Code as 75. The OS/8 RX01 bootstrap uses Device Code 75. David Gesswein's RX01 dumprx01 and restrx01 programs use Device Code 75. So, I guess that the RX8 Maintenance Manual is wrong and I should set the Device Code to 75? -- Michael Thompson

12 years, 1 month

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IBM 1050

by BHuntsman＠mail2.cu-portland.edu

New arrivals today: I landed two of these! They're pretty dirty, and there's no 1051 to go with them... yet! https://www.flickr.com/photos/87479714 at N05/14234226025/in/set-72157644757489351 I will post more pictures when I have them unboxed and cleaned. -Ben

12 years, 1 month

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Available : Axum 5.0 for Windows

by stephane.tsacas＠gmail.com

Hi, I have 11 floppies of : Axum Ver 5.0 for Windows (Windows 3.x, NT and 95). Here is the announcement of this version : http://www.thefreelibrary.com/MathSoft+introduces+Axum+5.0,+offers+revoluti… CAMBRIDGE <http://encyclopedia2.thefreedictionary.com/Cambridge>, > Mass.--(BUSINESS WIRE)--Aug. 12, 1996--MathSoft, Inc. (NASDAQ<http://encyclopedia2.thefreedictionary.com/NASDAQ>: > MATH) today announced Axum 5.0, a major new release of their powerful > technical graphics and data analysis software. > New enhancements and features include panel plots for revealing hidden > patterns in data, the ability to customize Axum's toolbars and menus, and a > unique link that lets users create PowerPoint presentations automatically. > Axum 5.0 is the first point-and-click graphing package to offer panel > plots, modeled after TRELLIS<http://encyclopedia2.thefreedictionary.com/Trellis> graphics > pioneered by Bill Cleveland at Bell Labs and Rick Becker at AT&T Labs. > Panel plots allow users to condition data on multiple variables and to > examine different relationships in the data. I can't read them, so I can only ship them. -- Stephane

12 years, 1 month

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MAGMA SBus Serial Ports doc

by stephane.tsacas＠gmail.com

Hi, If anyone is interested by this user's manual, drop me a mail. I'll ship anyywhere. It is an installation manual and has two separate sections one for SunOS and the other for Solaris. -- Stephane

12 years, 1 month

1
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Sun V280R + Doc CD + SB100 CD + SunPCI 2.2.2.1 CD

by stephane.tsacas＠gmail.com

Hi, I have a Sun280R for sale or trade. The computer is located near Paris, France. You must reply asap if you want it because I have nowhere to store it. Also if anyone interested by these CD, all new, sealed : Sun Blade 100 Hardware documentation, new, unopened. 724-4191-02. (Service manual + ShowMe How Multimedia). Sun fire 280R server Online documentation, multilingual, 724-4202-02 Sun PCI 2.2.1 724-6973-01. I'll ship anywhere if you pay for postage + enveloppe. If you're only interested by an ISO image of a CD, I can do that but my ADSL access has only 1Mbit/s upload, so it'll take some time to upload (I guess in multiple RAR files +checksum). -- Stephane

12 years, 1 month

1
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Large circuit board storage

by jplist2008＠kiwigeek.com

I recently picked up an E10k and an Onyx rack for spares from one of our own and am pondering how to most safely wrap and store the Onyx boards and, in particular, the E10k midplane. I don't exactly have an anti-static bag of that size. I once read that tinfoil works well as it helps dissapate the static energy by spreading it over a larger surface, or something like that. Not sure about the validity of that, of if there are better options. I was then thinking, once appropriately protected, I'd simply keep them in decent sized cardboard boxes with some kind of foam at each end to stop them from slapping up against each other (providing tension to hold the boards upright). What does everyone else do for storing naked boards? Cheers; - JP

12 years, 1 month

2
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TeX vs. roff [was RE: UNIX Posters]

by RichA＠LivingComputerMuseum.org

From: Richard Sent: Tuesday, May 20, 2014 9:49 PM > In article > <CAEfH1SFQwgcxieLQRMP7tm_Opi7fH_L+piO18FcWAueur6_y2Q at mail.gmail.com>, > Jason T <silent700 at gmail.com> writes: >> Still, there's a chance they were derived from existing Latex or some >> other old file. > The more I think about it, the more I think troff may have been used. > It was for typesetting, after all :-) What, and (La)TeX wasn't??? ;-) Rich

12 years, 1 month

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HP16700A and the SCSI2SD

by keithvz＠verizon.net

Hi all, I just saw Josh Dersch's message thread right before I came here to talk about another upgrade I did to my HP16700A. I replaced the SCSI hard drive with a SCSI2SD. The device worked out of the box with just a regular off-the-shelf microsd card. I've used both the windows and linux software for firmware-upgrading and configuration and they work quickly and without fuss or drivers. The primary boot device was configured to SCSI ID 6. (and so I adjusted the ID of the SCSI2SD to match) I replaced the drive with the SCSI2SD device. I booted the HP off an external scsi cdrom drive, using the official HP media, and the entire installation process succeeded, all without user intervention. The whole process took about an hour. This installed HPUX 10.20 onto the SCSI2SD. I tested the data rates from an ubuntu PC with an adaptec card, and I was getting between 720KB/s - 820KB/s. This is slower, but there's room for optimization via software upgrade. (and even higher speeds available with newer uC or FPGA, if there's a future version) The logic analyzer definitely runs SLOWER with the SCSI2SD....perhaps in the neighborhood of 75% of the original speed. I haven't made up my mind whether I'll keep the modification, try another device, wait for upgraded software, or maybe just keep it as a spare. I *will* say that imaging the SD and producing a copy means you can instantly (as fast as a PC can copy to the microsd card) get back to factory default. This might be useful, especially with those that like to tinker! I've also had discussions with the developer, Michael McMaster, who is very responsive. The shipping from Australia was around $15 and took one week to the East Coast US. I'm going to type up a blog post or two on my website once I finish it. I just went to the hardware store last night, and I think using some standoffs and new screws that the SCSI2SD will mount nicely to the factory hard drive mounting plate. I think that this device would be perfect for those older devices where the speed requirements are much less. The other thread mentions the A3000 -- yes, I think it might be ideal. Keith M techtravels.org

12 years, 1 month

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Spring Cleaning Sale

by slandon110＠gmail.com

Clearing out more excess stuff Commodore 1084S Monitor, Power button needs slight repair and doesnt have knob door on it. Make a fair offer Commodore 1084 Monitor, Works great Make a fair offer Radius Pivot Mac SE Cards $10 dollars DSDD Floppies 100 for 50 dollars shipped, Have 7500 Available.

12 years, 1 month

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FREE FOR SHIPPING 3 Boxes Full of Amiga Magazines

by slandon110＠gmail.com

FREE FOR SHIPPING. 3 Boxes full of Amiga Magazines Mix of a ton of different ones. Pay Media Mail shipping on them and they are yours.

12 years, 1 month

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Free amiga documentation

by slandon110＠gmail.com

I have at least 3 huge boxes of photocopied amiga documentation. All free for shipping if someone wants it. Media mail will be cheap. Sent from my iPhone

12 years, 1 month

1
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Atari XL/Regan Cheng contact info?

by mwichary＠gmail.com

I am in the process of writing a photo essay about the Atari XL line of computers, which I grew up on, and grew to value industrial design of tremendously. I have two questions: 1. I have accumulated quite a bit of the XL line over the year or two (see photo of most of the collection: http://www.aresluna.org/atari-photos/0-overview.jpg) and after I?m done with my photography, I won?t really have a good use for them. What should I do with those machines? Is there anyone interested in grabbing this wholesale? Should I put it up on eBay? I?ve never really sold vintage computers in any capacity, so I?m curious what works and what doesn?t. 2. I am looking for contact information for Regan Cheng, who as far as I understand was responsible for the design of the 1200XL and the XL line. I would love to chat with him if possible about some of the design decisions, nuances, stories, etc. Here?s a sample of a few of the many photos I took to celebrate/highlight those machines: http://www.aresluna.org/atari-photos (And if there are any other people who contributed to the 400/800/XL/XE line as far as product design or packaging design, I would love to be connected if possible.) Thanks in advance for any help! M.

12 years, 1 month

3
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PC/AT First Steps

by mokuba＠gmail.com

Howdy all! I just found a PC/AT with monitor and keyboard, but even with all but video card removed I get no POST / ram count. Where do I start first on this type of machine? I also got two PS/2 Model 70s in the same lot, but they both boot into error 161 and 163 but can escape into BASIC just fine. Need to make the config disk to sort them out .... -- Gary G. Sparkes Jr. KB3HAG

12 years, 1 month

7
13
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Ricoh RH5500 Data Recovery- Former Amiga BBS is on these Carts.

by slandon110＠gmail.com

So this Amiga 2000 Came with a weird Ricoh RH5500 Drive and 6 Cartridges, Its a Magneto Optical Drive. Former owner ran a BBS on those carts. Would anyone like to take on recovering the data off of them. I could ship the drive and media to ya. Thanks Steve

12 years, 1 month

2
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IBM 5170 substitute hard disk?? (Enrico Lazzerini)

by enrico.lazzerini＠email.it

Thanks for the reply, I apologize but I do not have much practice with CF. I have verified that by setting as a slave HD the adapter following: http://www.idotpc.com/TheStore/pc/catalog//products/accessories/cfide401big. jpg with a 2GB CF in it on an old PC with Windows 98, it works. I boot properly first the DOS system and I launched FDSIK and then format d: / s on the CF which is formatted in FAT16. On the IBM 5170 Disk I have a controller like this: http://www.amoretro.de/2012/01/winbond-w83757f-ide-controller-und-multi-io-k arte-16-bit-isa.html I ask: 1) do i Simply connect the CF as I have already formatted with win 98? 2) maybe have i to set the adapter as master? 2) i not believe that the ibm 5170 will recognise immediately the CF. I mean have I to a set something in the system firmware or have I to create a most little disk area than 2GB? 3) What should I do exactly? Thanks in advance Enrico

12 years, 1 month

1
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FS: Amiga Grab Bag Lot of Disks DSDD 3.5inch 25 disks a lot for $25 shipped

by slandon110＠gmail.com

I just recently got my first Amiga 2000, and it came with approximately 7500 disks, Which I have no room for So im thinking a random sampling of disks, 25 in a pack for $25 dollars shipped, Use em on your amiga or reformat them for other machines. These are DSDD 3.5inch Disks

12 years, 1 month

2
1
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Compaq Deskpro XT Info

by sales＠skybridge.com

I own a Compaq DeskPro XT and was wondering if anyone knows the value of it? Seems rare as there has never been one listed on ebay. I can be reached at sales at skybridge.com or 203-387-7821 Thanks -- Mark Saron SkyBridge LLC Managing Director 950 Elm St. New Haven, CT 06511 203-387-7821

12 years, 1 month

1
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For Trade: Expanded Amiga 2000 for Expanded Amiga 1200

by slandon110＠gmail.com

I just got an Amiga 2000, but id prefer a 1200 with SCSI Specs on mine are A2000HD KS 2.1 ROMS A2091 SCSI Card with 1GB Hard Drive- 2MB RAM Internal 2X CD-ROM Drive A2630 Accelerator with 4MB RAM on Board 1 Super RAM Board with 2MB RAM Comes with Keyboard and Mouse and original KS 2.1 Disks along with The stuff to set up the hard drives. What id like is an A1200 with 030 at least 8MB RAM and SCSI Would be nice if it was in Michigan for a face to face trade meet up

12 years, 1 month

1
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DEC TU56 dual drive and it's modules

by isking＠uw.edu

> > Date: Sat, 17 May 2014 18:38:02 +0200 > From: Marco Rauhut <marco at familie-rauhut.eu> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: Re: DEC TU56 dual drive and it's modules > Message-ID: <5377906A.8060909 at familie-rauhut.eu> > Content-Type: text/plain; charset=ISO-8859-15; format=flowed > > The tip with the look on the wiering of the backplane bring "light" into > the darknes. > Now the most Modules in right placees.... > Only two module places left for confirmation. > > Thanks to all so much! > > > Am 16.05.2014 22:33, schrieb Tony Duell: > >> In the engeneering drawings "Module Utilization" are shown special > >> places for each module. In my drive the Modules on different places then > >> in the drawing. > >> Is the backplane a real bussystem or got i use the ports shown in > drawings? > > > > The T56 is most definitely not a bused backplane, the modules have to be > > in the right slots. > > > > I think exacltly which modules you need depeends on the controlleryou are > > uisng it with. So you might need ot check that. > > > > And DEC often drew the modual utilisation diagram looking a the _wiring_ > > side of the backpl;ane, not at the modules. It's a mirror image of what > > you might expect. > > > > -tony > > This may have been mentioned and I missed it, but just in case: if the drive unit was connected to a TCxx (typically a TC08) then it will not have the G888s in its backplane. I believe you stated you want to connect this to a TD8E, in which case you need the G888s. I'm sorry to say, they are quite hard to find and when you do find them (quantity 5), you will pay dearly for them. That's been my experience - I have a TU56 that's been languishing while I try to locate G888s for less than a mortgage payment. Also, in case you haven't noticed this already: the TU56 has an internal power supply that runs the motors and some of the control circuits, but also requires an external supply for the logic. -- Ian -- Ian S. King, MSIS, MSCS Ph.D. Candidate The Information School University of Washington Madness takes its toll - please have exact change.

12 years, 1 month

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HP-IL to SCSI Adapter

by dm561＠torfree.net

----- Original Message ----- > Date: Sun, 18 May 2014 19:31:36 -0600 > From: Eric Smith <spacewar at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > > On May 18, 2014 7:22 PM, "Jason T" <silent700 at gmail.com> wrote: >> single-purpose utility. Too bad, I'd have been tickled to see a 110 >> (had to look up "Portable Plus" to find that they were the same) with > > Not quite the same, though very similar. The "Portable" is the HP 110, and > the "Portable Plus" is the HP 45711. ----- Reply: ----- A little clarification: HP Portable (HP110): Model 45710A, 80x16 screen. HP Portable Plus (HP110 Plus): Model 45711A, very similar indeed but with 80x25 screen, expandable RAM & ROM and a faster (now optional) modem.

12 years, 1 month

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HP-IL to SCSI Adapter

by silent700＠gmail.com

I acquired one of these recently (HP P/N 5061-3166) and I'd like to know more about it. For which equipment was it intended? With what other non-intended equipment could it be used? I scanned the info sheet that came with it and posted it here (PDF:) http://chiclassiccomp.org/docs/content/computing/HP/5959-1451_E2_HP-IL_SCSI… It did not include the power adapter but at least I have a part number for it so finding a substitute shouldn't be too difficult. Seems to be the same one used with the 95LX, giving 9VAC. The sheet tells you to call the HP BBS (heh) and download SCSIDISK.EXE, which suggests that this was targeted to a DOS machine. >From what I know of HP DOS boxes with HP-IL connectors, that means the HP 110 or the LX series of palmtops. Although on second reading, it seems as if that would only be to "perform SCSI diagnostics," so it's possible that this interface may also have worked with non-DOS HPs. Anyone have any clues to throw out?

12 years, 1 month

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IBM 5170 substitute hard disk??

by enrico.lazzerini＠email.it

Hi, I have an old IBM 5170 with motherboard Type 1 without any old hard drive. I could can also reprogram the EPROM system to enter different geometries of disks, but was wondering, how could I possibly replace the disc with a cf-IDE40 adapter like this: http://www.idotpc.com/TheStore/pc/catalog//products/accessories/cfide401big. jpg <http://www.idotpc.com/TheStore/pc/catalog/products/accessories/cfide401big. jpg> Thanks for any suggestions. Enrico

12 years, 1 month

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Free: Macintosh IIcx motherboard

by gustavoknemanu＠aol.com

Hi, I'm looking for 820-0230-B Mother board, and somebody tell do you have one, do you have it..?

12 years, 1 month

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Does anyone have a TI PAL20L8 reader?

by brain＠jbrain.com

I have one of the very few working memory expansion units for the Commodore 65. It contains a PAL 20L8, and I don't have a reader for that IC (my FLASH/EPROM programmer doesn't do 20L8... As this unit is somewhere rare, there is a desire to document the unit, and potentially replicate. So, I am wondering if someone has a reader for this IC that either: a) I could borrow for a week or so to read and program a new PAL to verify the read (preferrable) b) I could ship this board to for reading the verification. I'm not worried about the people on option b, but the shipping. I guess if I were near enough to someone, I could just hand deliver it. (I am in IA, so I doubt anyone is local, but I am going to be in Chicago in the Fall, and I will be in Seattle in the next few weeks) Jim -- Jim Brain brain at jbrain.com www.jbrain.com

12 years, 1 month

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11/34 in Brooklyn

by stephane.tsacas＠gmail.com

Check it out : http://www.nycresistor.com/2014/05/15/pdp-11/ -- Stephane

12 years, 1 month

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VAXStaion RAM Simms Pinout?

by holm＠freibergnet.de

Hi Guys, I have an VAXStation 3100 M76 with 16MB RAM here .. and need more.. I do have some left over RAM Simms from other VAXStations, I Think they fit in 3100 M38 (not sure). That are 4MB Simms, a Sticker says 54-19145-AU Which google says are MS44-AL and I need MS44-AA. Is the Pinout of those RAMs documented somewhere? Can I patch the -AL to -AA ? 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, 1 month

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Buying something from a museum (was Re: Whats in a straight 8 >> +200 years ... That museum bellied up 75 years ago.

by michael.99.thompson＠gmail.com

> From: ard at p850ug1.demon.co.uk (Tony Duell) > Date: Sat, 17 May 2014 19:36:57 +0100 (BST) > Subject: Re: Buying something from a museum (was Re: Whats in a straight 8 >> +200 years ... That museum bellied up 75 years ago. >> > > Alas yes. But then the same thing will happen to private collections, the > owner will have died long before that. > > FWIW, I've disagreed with Mr Donzelli on lots of matters, but I do agree > with him that _everybody_ should make a will. That way, their machines re > hopefully presereved (and I would hope that the chap who receives them > similarly makes a will, and so on). Museums should make a will too. It would be really disappointing to donate something to a museum and later see a landlord put everything in a dumpster (skip) and sell it for scrap. -- Michael Thompson

12 years, 1 month

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Whats in a straight 8 PDP-8

by dave.g4ugm＠gmail.com

Folks, Can any one tell me whats in a "PDP-8" Straight 8. So how many logic boards, logic gates, transistors and diodes? Does any one also have the CPU speed. Its just there is one in www.mosi.org.uk next to a Ferranti Pegasus. I would like to be able to compare it with the Pegasus to show how things moved on in the nine years between the two machines. The poor PDP-8 is much neglected as its much smaller and less impressive than the Pegasus, yet I am pretty sure it was faster, cheaper and much more capable. Dave G4UGM

12 years, 1 month

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Little iron that needs homes..

by jon＠jonworld.com

Folks, I forgot if I posted this here or not. I've been busy preparing for my move. I have 3 items that still need homes. 1) Sun V240. 2z1Ghz CPUs, 2G of RAM. No drives. I'd like $50 obo 2) Sun E3000. 6x400Mhz CPUs, 6G of RAM. No drives, but I can throw 2x 50GB in there. $100 obo 3) SGI Fuel. 600Mhz, V10 Graphics, 1G of RAM. 36G drive. Irix 6.5.33 loaded. $200 obo Shipping would be from Indianapolis, IN 46219. -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 1 month

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Atari 2600/5200 Development?

by healyzh＠aracnet.com

I've found myself wondering just what a typical development system for an Atari 2600 or 5200 looked like. I gather that an Atari ST was used for developing Atari 7800 software. Obviously now, something like DASM can be used for the 2600, but what was used back when the systems were new? Zane -- healyzh at aracnet.com http://blog.zanesphotography.com http://www.flickr.com/photos/zanes-photography/

12 years, 1 month

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Forth for PDP-8?

by kylevowen＠gmail.com

Just a little bit of cursory looking turned up nothing. Has someone written a Forth interpreter for PDP-8? Preferably using 24-bit integers, but I'll take what I can get. OS/8 support would be nice. I see that a Lisp interpreter exists, so that's somewhat promising, I suppose. Thanks, Kyle

12 years, 1 month

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DEC TU56 dual drive and it's modules

by marco＠familie-rauhut.eu

Hello ClassicCMP`s I`am resorating an TU56 dual drive. It is clean now, i repaired the powersupply, i formated the capacitors and i checked if all modules that needed are existing. My question before first "smoke test" is done is.... In the engeneering drawings "Module Utilization" are shown special places for each module. In my drive the Modules on different places then in the drawing. Is the backplane a real bussystem or got i use the ports shown in drawings? Marco P.S.: Is it allowed to send pictures as attatchment to the list? Or wants the moderator killing me when i do?

12 years, 1 month

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Singing the praises of the SCSI2SD project...

by derschjo＠gmail.com

The SCSI2SD project (http://www.codesrc.com/mediawiki/index.php?title=SCSI2SD) was brought up here a few months back -- it's effectively a SCSI disk emulator, using Micro-SD cards as the backing store. I ordered a couple and I started chatting with the creator (Michael) about supporting non-standard sector sizes (for example, the 1280 byte/sectors that the Symbolics XL400, XL1200, and XL1201 demand...) SCSI drives that support sector sizes other than 512 bytes are getting more and more hard to find, and having a modern replacement would be awesome. Michael was extremely receptive to the idea (he was already working on 256 byte/sector support) and added non-standard sector size support (from 64 to 2048 bytes/sector) and I tried it out with my XL1200. It didn't work initially, but over the last month we've iterated over a few potential fixes, with me gathering logs and diagnostics and him doing all the hard work of fixing the firmware. And finally this morning the last bug was squashed -- I have my XL1200 booting Genera entirely from a Micro-SD card. It actually seems to be a little bit faster than the Seagate drive I've been using (and I'm still running a debug version of the firmware) :). If anyone's looking for a replacement for oddball SCSI devices like this, the SCSI2SD seems to be a pretty good option. Michael has been very receptive to bug reports and suggestions (and of course, the source is open to anyone who wants to hack away at it...) Just thought there might be a few people on this list interested in this news... - Josh

12 years, 1 month

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My experiences adding a FreHD to my TRS-80 Model 4

by terry＠webweavers.co.nz

For those who might be interested... http://www.classic-computers.org.nz/blog/2014-05-08-FreHD-and-my-model4.htm Terry (Tez)

12 years, 1 month

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DEC TU56 dual drive and it's modules

by bob＠theadamsons.co.uk

> Date: Fri, 16 May 2014 08:42:57 +0200 > From: Marco Rauhut <marco at familie-rauhut.eu> > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: DEC TU56 dual drive and it's modules > Message-ID: <5375B371.6090107 at familie-rauhut.eu> > Content-Type: text/plain; charset=ISO-8859-15; format=flowed > > My question before first "smoke test" is done is.... > In the engeneering drawings "Module Utilization" are shown special > places for each module. In my drive the Modules on different places > then in the drawing. > Is the backplane a real bussystem or got i use the ports shown in > drawings? > Congratulations, the TU56 is quite sought after. The TU56 backplane isn't a bussystem as you describe it (i.e. not like the pdp8 omnibus). The wiring is point to point between the various module positions and the modules have predetermined positions. There will likely be some differently coloured wiring modifications too. If yours are in different places to the engineering drawings it may be wrongly assembled - check some intermodule signals to confirm. You may or may not need some G888 modules depending on which controller you have or plan to use. Bob

12 years, 1 month

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Help with Access to Old Hard Drive

by jhfinedp3k＠compsys.to

I can use some help in my attempt to access some files on an old IDE 160 GB ATA 100 hard drive with a FAT32 file structure for each of the partitions. This hard drive was used as a data drive on a Windows 98SE system (which because of the old BIOS supported only 131 GB - more than acceptable since that hard drive replaced at about 2/3 of the original cost a 40 GB drive) with a separate controller to provide faster throughput. The cable was a DOUBLED 40 pin IDE interface between the controller and the drive. The system that I have to work with is a Windows XP with SATA drives, but also with an IDE interface which supported a DVD drive with a standard 40 pin cable, but the DVD drive is no longer in use. While it probably does not matter, on this Windows XP system, all of the partitions on all of the SATA drives are also FAT32. I have access to Partition Magic to be able to activate and name the partitions on the old IDE ATA 100 hard drive. Is it likely that I can just attach the old IDE ATA 100 drive to the IDE cable on the Windows XP system and access the files I want to copy from one of the partitions? Alternatively, do I need to use the DOUBLED 40 pin cable used with the old ATA 100 hard drive when it was used in the Windows 98SE system? Failing both of the above being successful, are there any other suggestions which might work? Jerome Fine

12 years, 1 month

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OT: interfacing old payphones

by dgriffi＠cs.csubak.edu

Could I get some advice and pointers on the practice of interfacing old payphones with modern equipment? In particular, I want to know about turning a COCOT (which seems to be the easiest to find) into a telco phone -- that is make it emit redbox tones when coins are deposited. I want to experiment with that kind of phone with Asterisk. -- David Griffith dgriffi at cs.csubak.edu

12 years, 1 month

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