March 2012 - test-drb@ccmp.vtda.org

by holm＠freibergnet.de

So far as I know this is MIDI ofer an arduino board: http://www.youtube.com/watch?v=Xk_XaJ7gE4Q 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

13 years, 2 months

16
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Machine to identify

by alberto＠a2sistemi.org

I've to identify this machine. No label, no data on it. http://www.fondazionegalileogalilei.it/museo/collezioni/calcolatori/mini _pc/img_mini_pc/57_patent_pending.jpg Someone know this machine ? Alberto ------------------------------------------------------ Alberto Rubinelli - Fondazione MUSEO DEL COMPUTER Onlus Via Costantino Perazzi 22 Tel 0321 1856032 28100 NOVARA (NO) - ITALY Fax 0321 2046034 Mobile +39 335 6026632 Sito web : http://www.museodelcomputer.org Mail : alberto at museodelcomputer.org Filiale di Torino : Tel 011 23415829 Filiale di Roma : Tel 06 98357066 ------------------------------------------------------ Le telefonate con numero nascosto sono filtrate Calls with no caller identifier are filtered ------------------------------------------------------

13 years, 2 months

4
4
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Pertec interface

by elson＠pico-systems.com

Well, I am chugging along on this project. After fixing a few bugs, I now have a program that will read single blocks off the tape. Somewhere the docs got confused, they say that bit zero is MSB and bit 7 is LSB, a la IBM 360. But, the data I am getting is clearly the opposite bit order, so I will reverse that. Also, I am not detecting file marks, but see a block with zero length. So, I need to look at that. Could easily be a wiring error. But, I manually reversed the bits and I get VOL1 and HDR1 records of 80 byte length, and then data records of 8192 length. So, with just a little bit more tinkering, I think this thing is going to work. It IS a nightmare, with a 44-pin TSOP memory chip glued upside down on a piece of perfboard with wire wrap wires soldered to it. It was the only suitable memory chip I could find. 64K x 16, I'm only using one byte worth. Jon

13 years, 2 months

4
4
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Rosewood

by robert.jarratt＠ntlworld.com

> -----Original Message----- > From: cctalk-bounces at classiccmp.org [mailto:cctalk- > bounces at classiccmp.org] On Behalf Of Mouse > Sent: 29 March 2012 05:13 > To: cctalk at classiccmp.org > Subject: Re: PDP-8 questions > > > cylindrical volume of about 50 cubic metres for one tree. Let's say > > that one person wants a piece of rosewood that is 50cm x 50cm x 1cm. > > That is 0.0025 cubic metres, so a single fully grown tree would > > satisfy 20,000 people once a year. > > That's assuming that (a) all the pieces can be fit into the tree's volume with > no waste, (b) nothing is lost in cutting them out, and (c) any part of the tree > is perfectly suitable for any use. Neither (a) nor (b) is likely to be true, and, > while I don't know rosewood, I know that with the woods I do know > something about, (c) is not true. > > I have nothing but wild guesses as to how much is wasted; for what it's > worth, my wild guess is that the wastage is at least half the volume. > > /~\ The ASCII Mouse > \ / Ribbon Campaign > X Against HTML mouse at rodents-montreal.org > / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B Yes, two people have challenged my assumptions. That is to be expected really as I am no expert on wood. It was just about getting an approximation to show that the "how can little old me really make a difference" attitude *can* make a difference when there are a lot of "little old me's". I am sure that the yield is far from perfect, but I was just trying to show that even with some fairly optimistic assumptions this attitude can have a big effect; if yield is 50% then the figures double etc.... Regards Rob

13 years, 2 months

1
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OT: Family health issues (was: Re: another hidden pdp11)

by mtapley＠swri.edu

At 1:13 -0500 3/29/12, Tony wrote: >s/pub/hospital/ I'm really sorry to hear that, Tony. You have our sympathy and best wishes for a speedy and complete recovery for your father. Is there anything else any of us can do? -- - 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.

13 years, 2 months

2
1
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PIXAR Image Computer Panel Museum Display on Ebay

by nick.allen＠comcast.net

PIXAR's first computer used to make portions of the 3d short (Red's Dream) is now on Ebay (wife refuses to let me keep it and hang it on our wall). Thought you might be interested in it, here is the link: http://www.ebay.com/itm/PIXAR-Image-Computer-Panel-Framed-Museum-Piece-RARE… <http://www.ebay.com/itm/PIXAR-Image-Computer-Panel-Framed-Museum-Piece-RARE…>

13 years, 2 months

7
12
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twinax cards, linux, and hercules

by dgriffi＠cs.csubak.edu

A question for those of you who play with Hercules... Are twinax cards supported under Linux such that a 5250 terminal can be connected and work? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

13 years, 2 months

4
4
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PDP-8 questions

by djg＠pdp8online.com

Not sure how separate classicmp pdp8 readers are from alt.sys.pdp8/pdp8-lovers readers so trying here also. Nothing new if you saw it previously. Does anyone have 4k BASIC or Spacewar? Poly BASIC, DECUS 8-195 seems to be 4k. I think Edusystem 10/15 BASIC also ran in 4k. I think there also was a 4k Poly Spacewar. I have this one which is 4k but it doesn't have gravity etc. / SPACE WAR / / INTERPLANETARY DEATH AND DESTRUCTION ON YOUR / LAB-8 / / EVAN SUITS My desktop straight 8 is missing the wood side panels so I want to make some. I took pictures and measurements of MARCH's but I can't remember if they were real wood veneer or imitation laminate. Does anybody know more or can look closely at their's? Online seems to think it was rosewood but doesn't say if it was real wood. One reply on pdp8-lovers said the desktop panels were imitation and another said the rackmount were real. Did current stright 8 owners do margin checks and if so what margins are reasonable to shoot for? The manual doesn't seem to clearly say. The last is the DF32 with the straight 8 has modified W103 device selectors. It seems that they were modified from pulse amp outputs to DC coupled level outputs. Has anyone seen this done before? http://www.pdp8online.com/dfds32/pics/w103-mod.shtml?small (next picture is schematic). I'm still working on getting the drive running so haven't seen if they work ok.

13 years, 2 months

6
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HELP...please help to save something of this..

by holm＠freibergnet.de

Hopefully for someone in Europe interesting. There is a storage Hall with some old computer content in Dortmund/Germany. Please look here: http://www.robotrontechnik.de/html/forum/thwb/showtopic.php?threadid=8155 and here: http://www.robotrontechnik.de/system/foto.php?dir=Computersammlung 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

13 years, 2 months

17
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Complete "Amateur Computer Society" Newsletter Available Online

by lbickley＠bickleywest.com

The Amateur Computer Society (ACS) was founded by Stephen B. Gray in May, 1966. The ACS was for those who "are building or operating a homemade computer from their home". An interesting requirement was that the computer had to at least perform "automatic multiplication and division". In practice, membership was open to anyone who had a "serious" digital computer operating from their home. In my case that included a RPC-4000 ;-) Since I had been a member of the ACS, I had searched everywhere online for the complete set of ACS Newsletters - and found only isolated copies of individual newsletters. I did find that Stephen Gray had donated his original complete set to the Babbage Institute. Subsequently, I did a detailed search of the Computer History Museum's (CHM) archives via their Collections Department. I was excited to find that the CHM also had a complete set of the ACS Newsletter. I requested that they scan and make a PDF copy (including OCR) of same - and for a modest scanning fee they did so. It is now available to the world (free) via CHM's website: http://www.computerhistory.org/collections/accession/102654910 Go to the bottom of the page where there is a link to the PDF. For those who would like to know the earliest history of "home computers", I think you'll find it a fascinating read... Cheers, Lyle -- Lyle Bickley, AF6WS Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

13 years, 2 months

4
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Can you ID these modules?

by doug＠blinkenlights.com

Anybody know what these were from? Labled OS28, RS15, and TR57. One of them with the name "Collins."

13 years, 2 months

4
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PDP-8 questions

by mtapley＠swri.edu

All, an humble suggestion: 1) Use cheap pine with a nice stain to make some "temporary" panels 2) plant a rosewood tree 3) maintain the machine for ~100 years 4) cut down your rosewood tree, make "real" panels out of it, and sell the excess rosewood to pay for electricity to run the machine. 5) meantime and most important, get back to classic-computer discussions on this list PS: Philip H., you are absolutely positively the man! I thought nothing could change the currently sagging signal/noise ratio on the list and my heart sank when I saw the 87k archive ... but then! / SPACE WAR / / INTERPLANETARY DEATH AND DESTRUCTION ON YOUR / LAB-8/E .... Now *that* is the kind of post we need more of! Right on! -- - 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.

13 years, 2 months

1
0
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PDP-8 questions

by djg＠pdp8online.com

> You're looking for the spacewar you're citing above? > > I currently don't know where I have the original source - I modified it > to fit my LAB-8/e Real time clock and a pair of joysticks.... > Thanks for an on topic reply :-). I have the original of that version but its stripped down enough that its only sort of spacewar. I had heard there was a better 4k version and was hoping someone had it. I'm going with laminate, can we let the other thread die?

13 years, 2 months

1
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PDP-8 questions

by jgessling＠yahoo.com

Because when the environment has been destroyed and there's no place that the "damn" trees will grow then you can't plant them successfully. You guys are pathetic.? As I said before, is it so difficult to think about where materials come from? Regards, Jim

13 years, 2 months

6
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DEC PDP-8 PC8-E High Speed Reader Punch on ebay

by tdk.knight＠gmail.com

duno if anyones interested there a DEC PDP-8 PC8-E High Speed Reader Punch on ebay http://www.ebay.com/itm/DEC-PDP-8-PC8-E-High-Speed-Reader-Punch-NO-RESERVE-…

13 years, 2 months

3
2
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RX01/RX02 rack slides needed

by mcguire＠neurotica.com

Hey folks. Does anyone here have a set of rack slides of the sort used by DEC RX01 and RX02 drives that they might be willing to part with on short notice? I'm willing to pay for them of course, but I'd like to keep it reasonable. :) Thanks, -Dave -- Dave McGuire, AK4HZ New Kensington, PA

13 years, 2 months

1
0
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That festering sore in Germany

by wdonzelli＠gmail.com

> A bit hampered on that through lack of German and not wanting to sign up for > a German web site. ?Jim Austin http://www.computermuseum.org.uk/ was asking > who owns it? Any pointers any one. I have known about this pile for a few years now, and I have not been able to pin down who owns it, or if anything is being done to save it, past Computer History Museum's haul. At least they pulled some great stuff out. Most of it at this point looks like scrap, but I would like to see that CDC 841 disk system saved, even if it was a dog when new. Also the CDC tape and printer, and I suppose the comm unit. -- Will

13 years, 2 months

4
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PDP-8 C compiler

by v.slyngstad＠frontier.com

Rather than simply rekindle this annual discussion, I've decided to create a data point. So, you can read about (and download) an experimental PDP-8 C compiler at: http://www.so-much-stuff.com/pdp8/C/C.php I thought about delaying this notice until the first, but decided that since there really is a compiler of sorts there, that it would be more appropriate to do it now. Comments about the design decisions, improvements for the code, etc. are all welcome. Vince -- o< The ASCII Ribbon Campaign Against HTML Email!

13 years, 2 months

3
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IBM 083 maybe available

by wdonzelli＠gmail.com

I have a lead on an IBM 083 card sorter, located on the east coast. I do not know the condition. I had hoped it was an 084, but no such luck, and I already have two 083s. Any interest out there? -- Will

13 years, 2 months

20
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Edge Connector needed for HP 5036A Trainer HP 1251-2680 - Help please.....

by tomk4114＠yahoo.com

Anyone; I have an HP 5036A Microprocessor Trainer that I need two PC Edge connectors for. These are used to "Expand" the 8085 based trainer (without soldering right to the motherboard). The Gotcha is that these 44 pin, 22 position edge connectors are for thick, 3/32", .09375 boards. TRW?CINCH 251-22-30-341 ? Do you have any idea of a resource/lead where I could find these? ? I have tried CINCH, Mouser, DigiKey, Ebay, Electronic Surpuls sales, etc. with no luck. ? Thanks in advance for your kind response.?? Tom K.?

13 years, 2 months

1
0
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cctech Digest, Vol 103, Issue 36

by michael.99.thompson＠gmail.com

> From:?Richard <legalize at xmission.com> > Date:?Sat, 24 Mar 2012 13:21:06 -0600 > Subject:?Re: Computer Graphics Museum collection pics >> > From: Richard <legalize at xmission.com> >> > Date: Thu, 22 Mar 2012 10:24:15 -0600 >> >> > however. ?Do you have documentation on them? ?User manuals? Service >> > manuals? >> >> We have boxes and boxes and boxes of documentation and spares. > > Any chance those can be scanned and put online for me to look at? We know where the boxes of documentation are so we can look for manuals that describe the capabilities of the systems. If we have duplicate manuals we could send them to Al to be scanned. -- Michael Thompson

13 years, 2 months

2
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cctech Digest, Vol 103, Issue 36

by michael.99.thompson＠gmail.com

> From:?Nick Allen <nick.allen at comcast.net> > Date:?Sat, 24 Mar 2012 10:15:02 -0500 > Subject:?PIXAR Image Computer Panel Museum Display on Ebay > PIXAR's first computer used to make portions of the 3d short (Red's Dream) is now on Ebay (wife refuses to let me keep it and hang it on our wall). > > Thought you might be interested in it, here is the link: > > http://www.ebay.com/itm/PIXAR-Image-Computer-Panel-Framed-Museum-Piece-RARE… <http://www.ebay.com/itm/PIXAR-Image-Computer-Panel-Framed-Museum-Piece-RARE…> We have a system with what I think is the same from panel at the RICM. I will take some pictures next weekend and put them on the RICM WWW page. -- Michael Thompson

13 years, 2 months

4
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PIXAR Image Computer Panel Museum Display on Ebay

by dm561＠torfree.net

----- Original Message: Date: Mon, 26 Mar 2012 00:42:15 -0400 From: Dave McGuire <mcguire at neurotica.com> >> Of course, nowadays well whales are very nearly extinct... > This is one of the most bizarrely obscure tidbits of information I've > ever seen come across this list. How do you come to know about this? I > am just curious. -Dave ----- So am I, and also pleasantly surprised; I was under the impression that well whales had been completely extinct for at least thirty years. m

13 years, 2 months

1
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Pixar chap docs?

by mark.kahrs＠gmail.com

And speaking of the Pixar processor --- has anyone ever seen documentation on the Chap? (outside of the well known paper in Siggraph)

13 years, 2 months

1
0
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VAXStation 4000/90, Reset Problems...

by holm＠freibergnet.de

Hi, at the Weekend I've got an Vaxstation 4000/90 with 64MB RAM and a 2,1GB Disc from a friend. Powered it up today and found a Problem. The Machine doesn't start properly if it is switched on, the LEDs are all stuck on (0xff). If I switch it off then and on again in a short time, it starts up properly, is doing the diagnostics and tries to boot an (defective?) NetBSD 1.1 that is loading the kernel but is getting then in a ?54 RETRY loop. Pressing the HALT Switch brings up the chevron... havn't tried to install something jet... Is that Error with the Reset/Startup known to someone here? I think it could be an dead capacitor in the PSU... 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

13 years, 2 months

1
1
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Wang 2200 MVP

by michael.99.thompson＠gmail.com

> JC White <jcw1231 at pacbell.net> wrote: > >>Until a few years ago I had a Wang 2200 MVP.? When I was using it in my high school classroom an administrator had the room cleaned and moved the system outside.? A sudden storm destroyed the CPU and drives.? I have several working Wang 2236 terminals if somebody has a need for one.? Also, I would like to locate a 2200 MVP to play with again.? I am also looking for homes for a pair of Wang PCs from about 1990, two different models, one set up for networking. >> >>John We have a Wang 2200 VP, and another 2200 that I don't know the the version. Unfortunately, one of our members is always looking for more Wang equipment so we have lots of Wang equipment. http://www.ricomputermuseum.org/wang-computer-gallery-2/wang-gallery-models -- Michael Thompson

13 years, 2 months

1
0
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TRS-80 Model II/16 hardware, and C cross-compilation

by eric＠brouhaha.com

After a lot of aggravation trying to get one working TRS-80 Model II, by cobbling together parts from three other machines, I've finally got one mostly working. I wanted to get my own programs running on it, cross-developed on a Linux system. Model II TRSDOS 2.0 and later have a built-in "receive" command that can receive Intel hex format from the serial port, which can then be saved to a disk file with the "dump" command. The serial port on my CPU card was broken. After swapping that card, which I intend to troubleshoot later, I found that the receive command won't work reliably above 2400 bps. (Maybe it would work at higher bit rates if the sending computer used a long inter-character delay.) I packaged up z80asm and z80dasm for Fedora Linux and Red Hat Enterprise Linux 6, and submitted them to the repositories. After verifying that I can get cross-assembled code to run, I set my sights on cross-compiling C code. I had to hack up crt0.s, putchar.s, and a linker script to work for the Model II TRSDOS environment (which is almost entirely unlike TRSDOS for the Model I/III/4), but it is finally working. The machine I've got working is actually a Model 16, but I don't yet have the 68K subsystem working. When I try to load TRSDOS16, it says that it has loaded, but immediately gets an exception at address 0. Xenix just hangs with no output. I've got a diagnostic disk that purports to be for the Model II and 16, but it has a lot of bad tracks, so I can't actually run the Model 16 diagnostics. Does anyone have a good copy of the Model 16 diagnostic disk? The disk drives in the Model 16 don't work. The spindle speed of drive 0 seems to be way off, and I'm not sure what's wrong with drive 1. Right now I'm using two other drives sitting outside the case, because I haven't figured out how to get the drives out of the Model 16. It appears that the machine has to be taken apart much further than I'd hoped in order to remove the drives. :-( Eric

13 years, 2 months

2
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Cable for RX50

by robert.jarratt＠ntlworld.com

I recently picked up an RX50 for my MicroVAX II. It does not have the cable with it to connect to the BA123 distribution board, however it seems to fit a traditional PC floppy disk cable, is that all it needs? Thanks Rob

13 years, 2 months

5
11
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Looking for Terak 8510/a Keyboard/Monitor

by derschjo＠mail.msu.edu

Hi all -- Acquired a Terak 8510/a today in pieces, sans Keyboard and Monitor (but with external 8512 drive). Anyone have spares for this system that they'd be willing to part with? Thanks as always, Josh

13 years, 2 months

2
2
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DEC Rainbow spotted in RetroBites TV clip

by eric＠brouhaha.com

Or is it a Pro or DECmate? In any case, easily overlooked due to the antics of Penn & Teller: http://www.youtube.com/watch?v=nd8eOVUIogw

13 years, 2 months

3
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Anyone Have a DEC RX50 Manual?

by robert.jarratt＠ntlworld.com

Does anyone have a scan of an RX50 manual? I powered on the RX50 I just got, without a cable attaching it to the RQDX3 though. It flashes two red lights for a moment and then nothing happens, the doors do not appear to be unlocked, or I don't remember how to open them. It could be because I have not connected a cable, but I don't know. There are two floppies in the drive at the moment too. Thanks Rob

13 years, 2 months

6
7
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Pertec interface tape drive

by elson＠pico-systems.com

cctalk-request at classiccmp.org wrote: From: Steven Hirsch <snhirsch at gmail.com> Subject: Re: need interface to CDC Keystone (92185) tape drive Message-ID: <alpine.DEB.2.00.1203210749121.2392 at duo> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed On Tue, 20 Mar 2012, Jon Elson wrote: > > Hello, > > > > I was referred by a member, Peter Wallace. > > We are trying to recover some programs from 9-track backup tapes. > I have a 9-track drive that interfaces to an ISA bus PC through a proprietary card. It worked the last time I fired it up (about 10 years ago) and has been in dry storage. Questions: - What is the bpi density on those tapes? This thing will not read the highest density tapes. - Where are you located? Well, some are 1600 BPI, some are 6250. I have verified my drive is working at both densities (before the SCSI adapter died.) I am in St. Louis, MO. I am working on an FPGA interface to the Pertec formatted interface, it ought to work, but I don't know how much fooling around it will take to get reliable data transfers. Jon

13 years, 2 months

12
22
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Wang 2200mvp

by jcw1231＠pacbell.net

Until a few years ago I had a Wang 2200 MVP.? When I was using it in my high school classroom an administrator had the room cleaned and moved the system outside.? A sudden storm destroyed the CPU and drives.? I have several working Wang 2236 terminals if somebody has a need for one.? Also, I would like to locate a 2200 MVP to play with again.? I am also looking for homes for a pair of Wang PCs from about 1990, two different models, one set up for networking. ? John

13 years, 2 months

4
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Wang 2200mvp

by rickb＠bensene.com

Jim Battle wrote a great Wang 2200 emulator that runs the actual 2200 microcode, so it is a very faithful emulation. It might help bring back some memories until you can find the real thing. http://www.wang2200.org/emu.html Rick Bensene The Old Calculator Museum http://oldcalculatormuseum.com JC White <jcw1231 at pacbell.net> wrote: >Until a few years ago I had a Wang 2200 MVP.? When I was using it in my high school classroom an administrator had the room cleaned and moved the system outside.? A sudden storm destroyed the CPU and drives.? I have several working Wang 2236 terminals if somebody has a need for one.? Also, I would like to locate a 2200 MVP to play with again.? I am also looking for homes for a pair of Wang PCs from about 1990, two different models, one set up for networking. >? >John

13 years, 2 months

2
1
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Computer Graphics Museum collection pics

by michael.99.thompson＠gmail.com

> From:?Richard <legalize at xmission.com> > Date:?Thu, 22 Mar 2012 10:24:15 -0600 >> I am a volunteer at the RICM. The Calcomp systems are not in any >> danger of being scraped. > > heh heh, well I didn't expect you'd scrap them :). ?I just meant it > would be nice to hear of any progress made on getting them > functioning. > >> Maybe you should come for a visit and get some of them running? > > It's a long trip for me -- I'm in Salt Lake City. ?However, I'm likely > to be out on the east coast this summer and a side trip up to RICM > would be a good visit. ?I wouldn't have the foggiest idea where to > start on these Calcomp System 25s in order to get them operational, > however. ?Do you have documentation on them? ?User manuals? Service > manuals? We have boxes and boxes and boxes of documentation and spares. -- Michael Thompson

13 years, 2 months

2
1
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FT: Data General Nova 2, Nova 1200, and DG terminal.

by js＠cimmeri.com

> ------------------------------------------------------------------------ > >> "js at cimmeri.com" <js at cimmeri.com> writes: >> >> >>> LOOKING FOR: >>> >>> other hardware: >>> - VT-201 or other DEC monochrome. >>> >> I think you mean VT-220. There is no VT-201. >> > > Or maybe VT102 (which did exist). > > -tony Oops. I meant, VR-201. - John Singleton

13 years, 2 months

1
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Pertec interface tape drive

by mark.kahrs＠gmail.com

Speaking of which, has anyone ever seen any documentation on the Computer Logics ISA Pertec card?

13 years, 2 months

3
2
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mockumentary?

by dennis_mailing_lists＠conus.info

Hi. Is there such thing as mockumentary? "A mockumentary (a portmanteau of the words mock and documentary), is a type of film or television show in which fictitious events are presented in documentary format. These productions are often used to analyze or comment on current events and issues by using a fictitious setting, or to parody the documentary form itself.[1] They may be either comedic or dramatic in form, although comedic mockumentaries are more common. A dramatic mockumentary (sometimes referred to as docufiction) should not be confused with docudrama, a fictional genre in which dramatic techniques are combined with documentary elements to depict real events." http://en.wikipedia.org/wiki/Mockumentary It could be a fake manual for non-existent computer/computer device or non-existent software written for fun.

13 years, 2 months

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FT: Data General Nova 2, Nova 1200, and DG terminal.

by js＠cimmeri.com

I've a Nova 2, a Nova 1200, and D461 terminal with keyboard I'd like to trade off to any DG collectors. Working condition unknown -- I've not attempted to power them on (which would be foolish without going through them first). Restorable condition (I could restore them, anyway). The terminal is nice and fairly clean -- not a disgusting P.O.S. like I often see. The two chassis units appear to be rackmount style. I don't know anything about these machines, so don't know how complete or incomplete they are, but they each have a front panel and boards in the cage. I'm hazarding a guess they're likely best considered as parts machines. Feel free to PM me with any ?'s since I'm not sure what data is useful to provide. Can be picked up either from Washington, D.C. (northern tip), or near Frederick, MD. LOOKING FOR: drives: - ST-406; ST-412; ST-419 - CDC-9415* - CMI CM-5412 - IMI 5012H - MAXSTOR XT-2085 - Micropolis 1324A - Priam V170 or V185 other hardware: - PDP-11/34 half-height chassis complete with PSU -- do not need any logic boards. - VT-201 or other DEC monochrome. software: - Coherent - Venix with docs for DEC Pro 350. Thanks, John Singleton

13 years, 2 months

6
6
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Cosmac Elf on breadboard

by alkopop79＠gmail.com

I wonder if anyone has experience with Cosmac Elf. I've been trying to build one on breadboard but have troubles with the input section. Please let me know if you have built one! Thanks Greg Lorincz

13 years, 2 months

18
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And RA8x too, was Re: RA90 or RA92 disks

by bqt＠softjar.se

On 2012-03-23 08:20, Glen Slick<glen.slick at gmail.com> wrote: > Are you offering those up in return for something? I have an RA82 > here in the Seattle area that I have never been able to get to spin up > or do anything at all. I haven't been able to get anything out of the > diagnostic port. I have found the RA81 service manual online, but not > the RA82 service manual. It would be interesting to get it working > just to see it working. As far as I can remember or figure out, there is very little, if any differences between an RA81 and an RA82, so the service manual for the RA81 should work just fine. I hope you have removed the transport safeties if you try to spin it up. The diagnostics port is 300 bps, if I remember right. Hitting something like ^C should get its attention. You might also want/need to have both port selector buttons off to be allowed to play on the diagnostics port. I would think the details were in the service manual. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

13 years, 2 months

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And RA8x too, was Re: RA90 or RA92 disks

by alanp＠snowmoose.com

On 3/21/12 10:00 AM, cctech-request at classiccmp.org wrote: > >> > On 03/19/2012 11:53 AM, Kevin Reynolds wrote: >>> >> Anyone have working RA90 or RA92 disks that they would like to part with? >>> >> Send me a private response with pricing and availability. I'm in the US. >> > >> > I make the same request, in case someone has a bunch. =) I'm interested >> > in RA8x drives as well. >> > I have a couple of RA81s that were working when I got them 13 years ago (but haven't been powered on since). Located in the Seattle area. alan

13 years, 2 months

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SA72

by bqt＠softjar.se

On 2012-03-22 08:01, Ethan Dicks <ethan.dicks at gmail.com> wrote: > I have a couple of bare RA70 drives that I'd like to put into service > on machines that already have SDI controllers and no SCSI. My present > plans involve a plain shelf but a properly-fitting enclosure would be > nice. The SA72 takes more room than the plan RA70, you know. And you also need a special cable to the SA72. But on the other hand, you need a power supply if you use the plain RA70. But otherwise easily doable. Pick your poison. :-) Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

13 years, 2 months

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SA72

by bqt＠softjar.se

On 2012-03-22 08:01, "Henk Gooijen"<henk.gooijen at hotmail.com> wrote: > From: "Johnny Billquist"<bqt at softjar.se> > Sent: Wednesday, March 21, 2012 9:46 AM > To:<cctalk at classiccmp.org> > Subject: Re: And RA8x too, was Re: RA90 or RA92 disks > >> > Hum. Correct me if I'm wrong, but isn't the SA72 the box that holds up to >> > 4 RA7x drives? Same physical size as one RA90? >> > >> > If so, then no, it don't hold 4 RA9x drives. Also, the RA70 works just >> > fine in it, as do all RA7x drives. RA70 is somewhat unique, though, in >> > that it was designed to also be usable without any front panel at all. So >> > there are dip switches on it that can be used to set the unit number. >> > >> > Johnny >> > >> > -- >> > Johnny Billquist || "I'm on a bus >> > || on a psychedelic trip >> > email:bqt at softjar.se || Reading murder books >> > pdp is alive! || tryin' to stay hip" - B. Idol > > You may very well be right Johnny. Of course I'm right. :-) Why do anyone even doubt that? :-) > I was just dumping my grey memory cells:-) I did not check the HW. > Isn't the SA72 a small slim long metal box with a power supply in the > middle and room for two RA[79]x drive at both ends? At the front side > at the top is a connector for the small front panel. The width of the front > is 0.5 of 19" so that two of these fit next to each other in a 19" rack. > If that's way off, I'd have to check what I actually have ... No, that's the thing. Yes, the PS is in the middle. It also have a rather special cable (or two if you want to use both ports) that come out. I don't know the right terminology here, but it's shaped like the standard D-sub, but is wider and higher, and have lots of pins. That cable splits into 4 SDI connectors at the other end. It only holds RA7x drives. One RA9x drive is the same size as the whole SA72. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

13 years, 2 months

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mockumentary?

by a50mhzham＠gmail.com

Spinal Tap? At 09:16 AM 3/22/2012, you wrote: >On Thu, Mar 22, 2012 at 8:43 AM, Dennis Yurichev ><dennis_mailing_lists at conus.info> wrote: > > Hi. > > > > Is there such thing as mockumentary? > > > > "A mockumentary (a portmanteau of the words mock and documentary), is a > > type of film or television show in which fictitious events are presented > > in documentary format. These productions are often used to analyze or > > comment on current events and issues by using a fictitious setting, or > > to parody the documentary form itself.[1] They may be either comedic or > > dramatic in form, although comedic mockumentaries are more common. A > > dramatic mockumentary (sometimes referred to as docufiction) should not > > be confused with docudrama, a fictional genre in which dramatic > > techniques are combined with documentary elements to depict real events." > > http://en.wikipedia.org/wiki/Mockumentary > > > > It could be a fake manual for non-existent computer/computer device or > > non-existent software written for fun. > > >sure. Anyone remember the Rutles? > >Kelly 726 . [Temper] Man is a rational animal who always loses his temper when called upon to act according with the dictates of reason. --Oscar Wilde NEW: a50mhzham at gmail.com ? N9QQB (amateur radio) "HEY YOU" (loud shouting) ? Second Tops (Set Dancing) ? FIND ME ON FACEBOOK 43? 7' 17.2" N by 88? 6' 28.9" W ? Elevation 815' ? Grid Square EN53wc LAN/Telecom Analyst ? Open-source Dude ? Musician ? Registered Linux User 385531

13 years, 2 months

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Pertec interface tape drive

by elson＠pico-systems.com

> > Pertec is a pretty simple interface with handshake lines. I would > imagine you shouldn't have much trouble. An FPGA may be overkill > (certainly harder to work with 5v); you may find it even easier to > just use a microcontroller. My Cipher F880 runs on just a Z80 > internally, nothing fancier than that. > My understanding of the protocol is the drive sets the speed it spits out bytes, and that it can be up to 1 Mbyte/sec. There is no handshaking, the read data is just clocked out as the feels like. I don't see how a Z80 can keep up with that unless your formatter runs a lot slower. In theory, GCR data coming off the drive at 75 IPS can flow in bursts up to 480,000 byte/sec. (GCR actually records 6400 9-bit characters/inch, the 6250 refers to the equivalent data byte density after the ECC redundancy data is removed.) Your F880 is of course a slower drive and maybe 800/1600 only, so the data rate can be much lower. I have a product that uses a Xilinx FPGA connected through the PC parallel port in EPP mode, and have used it as a development board for several oddball projects, and so a good deal of code reuse makes this an easier path for me. The only extra job is I have to add a buffer SRAM to my board as the on-FPGA memory is not enough to hold the largest tape block permitted. Jon

13 years, 2 months

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Computer Graphics Museum collection pics

by michael.99.thompson＠gmail.com

> From:?Richard <legalize at xmission.com> > Date:?Tue, 20 Mar 2012 13:46:57 -0600 > Subject:?Re: Computer Graphics Museum collection pics > > In article <CAH1BU=_x5QzbjxP5__ZROP2xyAx6Nqmyjm=UMD37cn9YRAavQA at mail.gmail.com>, > ? ?Michael Thompson <michael.99.thompson at gmail.com> writes: > >> >> I didn't see any Calcomp System 25 Workstations in your collection. >> >> The RICM has LOTS of them. > >> > From: Richard <legalize at xmission.com> >> > I wasn't aware of these systems. [...] >> > This seems to be a workstation introduced in 1984. ?What kind of >> > graphics environment did it have? ?1984 is too early for X11 and also >> > I think too early for X10. >> >> The page for the Calcomps is here: >> http://www.ricomputermuseum.org/Home/equipment/calcomp-system-25 >> >> The RICM has LOTs of documentation on the systems, but have not >> powered one on yet. > > It seems the graphics was on a dedicated display peripheral and a text > screen was used for input and program interaction. > > Are you involved with the RICM? ?I'd be interested to know what > happens to these systems. I am a volunteer at the RICM. The Calcomp systems are not in any danger of being scraped. Maybe you should come for a visit and get some of them running? -- Michael Thompson

13 years, 2 months

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still seeking RL01/02 unit select plug

by mcguire＠neurotica.com

Does anyone have a unit select plug for an RL01/02 drive, for unit 2, that they can spare? -Dave -- Dave McGuire, AK4HZ New Kensington, PA

13 years, 3 months

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UK HAM Radio and Computer Exhibition :- The 50th Norbreck Amateur Radio, Electronics and Computing Exhibition

by dave.g4ugm＠gmail.com

The 50th Norbreck Amateur Radio, Electronics and Computing Exhibition will be held at the Norbreck Castle Hotel Exhibition Centre on Queens Promenade, North Shore, Blackpool, FY2 9AA. Doors will open at 10.30 and 10:15 for those with disabilities. Admission will be ?5 (under 14s free). http://www.narsa.org.uk/ As NARSA is an association of clubs any Computer Club is welcome to affiliate @ ?15 for which they get two tables at the exhibition, three exhibitors tickets and a share in any profits. A few trade tables still available, see http://www.narsa.org.uk/blackpool-rally/trade-bookings/ for details. (note if you get in quick you can still be squeezed into the stand list) It is mainly a radio show but there is always lots of computer gear on sale, much of it Vintage. Last year there were MAC Classics and BBC "B"s for sale. Dave Wade G4UGM Illegitimi Non Carborundum

13 years, 3 months

2
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PDP8/e help finding parts

by trestivo＠cfl.rr.com

I've got a pdp8/e that I'm getting ready to sell but first I need to replace 3 of the toggles on the front. (not the actual switch, just the plastic.) Does anyone know where I can get some of these? I have the 3 pieces that need to replaced, it's just that the "nibs" are broken. Thomas Restivo Technical Assurance Resources, Inc.

13 years, 3 months

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test-drb March 2012