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

by jon＠jonworld.com

I saw this locally on craigslist and thought someone may be interested. I have 0 connection with the seller... http://indianapolis.craigslist.org/sys/3028122746.html -- -Jon Jonathan Katz, Indianapolis, IN.

14 years, 1 month

1
0
0 0

Emulex UC07 / 08 and Disks greater 2GB ?

by holm＠freibergnet.de

does someone has a PDP11 with an Emulex UC?7 oder UC08 (double Version) running with disks greater than 2GB? I have some obscure effects when I try to use IBM DCAS-34330 Disks. Even a DEC RZ26L has the same problems (Format and Verify ok, but no access >from the OS side..) 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

14 years, 1 month

3
5
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Odd capacitor identification

by derschjo＠mail.msu.edu

A couple of months ago I picked up a Terak, in pieces. I'm now working on putting it back together as well as I can; the power supply has three large capacitors that are visibly leaky (i.e. there's crud coming out the ends) so I would like to replace them before I go any further. Thing is, I've never run into a capacitor quite like this -- it's a radial capacitor, about 1" in diameter, and about 4" long, but there are pairs of terminals on both ends (i.e. a "+" and "-" terminal on both ends). It's marked as follows: MALLORY 1300 MF 75V 105C QLA132U075N3L 235-7838 I considered that this might actually contain two capacitors in one can (as I've seen in some old radios & TVs I've worked on), but the markings on the can don't seem to indicate that this is the case, and further it looks like (based on probing with my DVM) the power supply board is wired such that the "+" on one side is the same circuit as the "+" on the other. (I don't have a schematic to confirm this, and I haven't yet pulled the whole power supply PCB out to validate this.) Additionally, after removing the capacitor from the circuit, there's continuity (w/ no apparent resistance) between the "+" terminals on either end of the capacitor. So it -looks- like this is just a single 1300uF capacitor, but I'm curious as to why there are terminals at both ends... Any thoughts? Thanks as always, Josh

14 years, 1 month

4
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M7555 For How Much???

by tsg＠bonedaddy.net

Anyone seen: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190684935842

14 years, 1 month

17
21
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Apple I on Ebay

by js＠cimmeri.com

On Sat, 2 Jun 2012, William Donzelli wrote: > Please realize that when you are dealing with Apple 1 "level" > artifacts, the fakes have to be *perfect*. Perfect enough to undergo > scrutiny under a series of lab grade tests and expert eyeballs. > I would think the hardest part would be finding the properly aged, unused board material itself. Boards from 1976 have definite technological characteristics, along with the patina of aging, compared to a board cut today. - John Singleton

14 years, 1 month

2
1
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Gear for sale - Goldendale Wa.

by jimpdavis＠gorge.net

Hi Guys, Here's a partial list of the stuff I'm looking to sell.. I don't have any prices yet, so make me an offer. I will ship the following: HP 32SII calculator HP 49G+ calculator Central point software Copy II PC deluxe board 4-6 tubes of 27C2048 16 bit wide EPROMS date code 97. Collection of 16032 / 32016 chipsets, Most are engineering samples Stuff you must pick up in Goldendale Wa, . 100 Mi east from Portland Or. in the Columbia gorge ( wild flowers are in bloom now ) Tektronix - Most stored in unheated shed, unknown condition, but not trashed 4025, 4027, 4023 color and mono terminals Tek 8002 Development system w/ calcomp floppy drives and 100-150 OS disks (floppies stored in controlled environment) Tek 6250 32016/32032 systems - Lots of parts, 2 chassis, 2 power supplies, 20-30 boards including frame buffer and graphics engine (gold scrap?) Tons of other stuff - Metheus Omega 400 graphics controller, analog devices process control computers, thermocouple stuff, old terminal boards ... Stored in controlled environment Tek 4052 with 4662 plotter and ( screen printer - stored in shed) HV supply dead, logic / CPU and LV supply was OK last I checked. A pile of Mac+, SE and road-apple macs, SCSI hard and CD drives ( low capacity ) Apple 2 GS woz with 2 drives, mem expansion, color monitor, joystick Computer Automation Naked mini chassis, front panel, power supply, CPU / 64 K words memory, TTY interface, extension card and semiconductor test system interface Email for details. I'll post some pics later ( dialup sucks ) If you come up, you will be taking something home, sale or not. Thanks, Jim Davis.

14 years, 1 month

3
5
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PDF Needed: DEC H740D Maintenance Manual

by lists＠loomcom.com

I've suddenly found myself desperately in need of the following manual. It used to be available at Wilber Williams' Computer Museum web site, but of course that site has shut down and I don't know of any mirrors :( It was located here: http://www.computer.museum.uq.edu.au/pdf/DEC-11-H740A-A-D%20H740D%20Power%2… DEC-11-H740A-A-D H740D Power Supply Maintenance Manual Thanks for any help! -Seth

14 years, 1 month

5
8
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Commodore Datasette belt

by wheagy＠gmail.com

I was able to get a pretty good measurement on this belt (thanks for the tips) and found one that I believe to be compatible at MCM for under $1. If anyone is interested, the part is... SQUARE BELT 10.5X.046/266.70MMX84.89X1.17 Square Belts, I.C.: 10.5, Thickness: 0.046 I used the string method that was suggest and got a length of 27cm and a digital caliper to measure the width and it was 1.15mm. So I think the above should work. Thanks. Win

14 years, 1 month

1
0
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inventory of DEC items

by elson＠pico-systems.com

OK, I made an inventory of all the boards. Some of these go with the BA23 cabinet, but I could mix and match for whoever buys the box. It has a TK50 and RD54-A disk drive in it. The board list I have is : M7169 QDSS M7620 BA KA650 M7621AF memory M7621AV memory M7168 memory - have 2 boards M3106 quad serial mux M7555 RQDX3 M8049 DRV11-J with 1 cable M7555 Disk control (MFM??) M7546 TK50 controller M7516YM DELQA - I have a total of 2 of these, listed the other last night M8634 IEQ11 - GPIB interface Of the above modules, the external connector panels are incredibly corroded, but the boards actually are quite clean. 2 x function selector panel module for KA630/KA650 battery, serial port baud rate selector, etc. M7606EF KA630 CPU M7607 MS630A M8029 RX02 controller M7264 LSI-11 M7950 DRV11-B M7942 no memory chips in sockets Also, dec-related parts : Emulex QD211 Dilog DQ686 Dilog DQ696-15 (have 2 units) Andromeda DC11 (floppy + MFM disk interface for Qbus) Emulex CS04 M?? Qbus memory MO XI/PL LSI-11 M ?? Qbus memory MSC4601 ?? BTA1000 Q-bus terminator MDB MLSI-DLV-11 Heath H11-2 parallel I/O I am located in St. Louis, MO Jon

14 years, 1 month

1
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some items I don't need

by elson＠pico-systems.com

Well, digging through a bunch of stuff, i have found some items people might have interest in. I have : A KA-11 backplane section, 3 pieces of 4 x 6 Unibus-style backplane. I'm pretty sure the label reads KA-11, which I think it the backplane for an 11/20 CPU. There is one wire-wrap wire that got scraped when a screw was removed, otherwise no damage to it. the connector contacts look clean, too. Free for the shipping cost. I have a complete KA-650 with cabinet. It is pretty dirty. But, years ago, I did plug the CPU and memory into my KA-650 system, and it loaded VMS. I was using 4.7 at the time, and upgrading to the KA-650 would have required upgrading and cracking the security on VMS 5.1 Not sure what to ask for this system, but I could list the board numbers if somebody wants it. No hard drive, but there is a TK-50 in the cabinet. I got quite a stack of boards with it, but other than CPU and memory, I did not test them. Some of them probably have serious corrosion damage. It must have come out of a chemical plant or something, it was like that when I got it. I have a KA-630 maintenance print set. Free for the shipping. I have a Lear Siegler ADM-36 maintenance manual, with schematics. I used that print set to double the CPU speed on the ADM-36 that I had. (Got rid of the terminal a long time ago.) Got a VT-240, worked last time I powered it up. Also 2 LK-201AA keyboards. Make an offer. Got several 9-slot Q-bus backplanes with fan and switching power supply. These were from the WELL (Whole Earth Lectronic Link) service. Not sure of the backplane part number, it is covered by the cabinet. Make offer. Aviv Q-bus Storage Tek tape interface. All the firmware is marked R925, so that might be the model #. Make offer. 2 Q-bus printer interface, M8027. Make offer. Unibus paddle, M9042. Make offer. MDB Q-bus (or is it Unibus?) MDB-LP11 (name kind of suggests Unibus, but it is 4-wide. Looks like it handles 2 printers. Make offer. 2 quad-wide extender boards. 2 dual-wide extender. Make offer. 1 M9202 Unibus jumper module, with the folded-up cable between the boards. Make offer. 4 M9047 Qbus grant continuity card. 1 G7273 Unibus grant continuity card. 1 M9302 Unibus terminator. 1 Camintonn CM-DRV11-WA Qbus DMA parallel interface. 1 DEC M7941, I think this is a DEC DRV-11, without the DMA. 1 M9400-YE, M9401 set with interconnecting cable, Qbus cabinet-cabinet extension. 1 Dilog DQ153 Q-bus mag tape control for buffered pertec interface. 1 DELQA Qbus ethernet interface, with cable and MAU connector. 1 CMD CQD-200/T Qbus SCSI tape control. Don't remember if this one works or not. 1 TD Systems Viking Q/B, Qbus SCSI disk controller, I think. 1 M7546 TK-50 Qbus controller. I still have more stuff, like the boards that came with the KA-650, I will have to clean them up and inventory them. Jon

14 years, 1 month

2
1
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Technical Specs of DEC Cables

by robert.jarratt＠ntlworld.com

Is there a reference somewhere that tells me exactly the spec of various DEC cables? For example I think I need a BC13B (connects VCB02 to monitor, keyboard and mouse), but I have a BC19S which *seems* identical. All I can find are resellers that list part numbers, one or two name the cables, but don't give the technical information that gives me any idea if these two are interchangeable or not. Thanks Rob

14 years, 1 month

1
0
0 0

Philips P800 family minis

by camiel＠camicom.com

Hi everyone, I won an eBay auction for three Philips P800 family minis with three cartridge disc drives, disc cartridges, lots of spare parts, and manuals including schematics. All for the incredible sum of 10 euros 75. I saw the auction when it had 11 minutes left to go while I was on vacation (I'm a bit of an eBay junkie, although deals like this are becoming rare). I'm collecting the systems this Sunday afternoon. As the manuals are all in binders, I'm planning on feeding them all through a scanner and posting them to bitsavers. Now, I seem to recall that Tony Duell has some experience with these systems. Is there anything I should be aware of before loading them on a trailer? Do the disc drive heads need to be locked in some way? When I've picked up the stuff, I'll post model and part numbers. Any advice offered on how to get them going again would be very welcome. Cheers, Camiel.

14 years, 1 month

6
6
0 0

Acorn Archimedes at 25

by lproven＠gmail.com

Interesting retrospective piece on The Register. (Not one of mine!) http://www.reghardware.com/2012/06/01/acorn_archimedes_is_25_years_old/ -- 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

14 years, 1 month

1
0
0 0

Dec industrial I/O cards (QBus)

by pdp11＠btconnect.com

Good Morning, We are in the market for IDV11-A, (M5026) and IDV11-C, (M8005). We note that you previously had these units in stock. Question: Do you still have similar units? Subsequent Question: Can you source these cards. Final Question: How much? We look forward to hearing from you. Regards Doug Mackay Digital Systems and Service Ltd Tel: +44 1536 460724 Mob: +44 7798 927 090

14 years, 1 month

1
0
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Software for OCR'ing paper tape? (was: Question about Military terminal)

by jfoust＠threedee.com

At 11:28 AM 5/21/2012, Ethan Dicks wrote: >If you were >scanning a short stack of cards, it wasn't so bad, but a 3 foot deck? >You'd spend a lot of time just getting the cards in and out of the >scanner. Well, there are many scanners that can auto-feed a half-inch-tall pile. As for paper tape, what about the super-duper overkill of recognizing a video stream from a web cam? All you'd need is a jig to slowly pull the tape past the fixed camera. - John

14 years, 1 month

25
75
0 0

DecTalk Express debugging?

by derschjo＠mail.msu.edu

This is marginally off topic, but I picked up a DecTalk Express recently and I'm trying to get it working. Currently, I get nothing out of it whatsoever. I discovered that one of the surface-mounted fuses had blown so I've replaced that and I'm still getting nothing, though I am now at least getting a low voltage (about .5V) at components on the board when it's powered on. This unit has a rechargable ni-cad battery in it (that I'm pretty sure no longer holds a charge) and I'm curious whether a functioning battery is required for normal operation. Thanks as always, Josh

14 years, 1 month

2
2
0 0

I AM LOOKING FOR THAT BOARD 10 PÇS - video board ATI

by curador＠museudocomputador.com.br

*ATI Video board with 12 outputs mini DPmodel HD 5970 * *Take look of the attached photos.* *Jose Carlos Valle* *email: josecvalle at gmail.com* *Brazil * -- *E-mail do facebook: jose.c.valle at facebook.com * *Cel CLARO: 8874-0100* *Cel VIVO: 9562-0211* *Cel: TIM : 5142-5559* *SKYPE: JOSECVALLE*

14 years, 1 month

1
0
0 0

FFS: Programmers docs for Sperry UTS 4000

by dgriffi＠cs.csubak.edu

I have the programmer's documentation for the Sperry UTS 4000, a machine that ran CP/M Plus (aka CP/M 3.0). The pages are in good condition. The binder is in good condition. The slipcase has a couple scrapes on it. Free for shipping from California. -- 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?

14 years, 1 month

1
0
0 0

a for-parts machine doesn't work

by dgriffi＠cs.csubak.edu

Why would someone buy a vintage computer advertised as "for parts" and then complain to the buyer that it doesn't 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?

14 years, 1 month

13
21
0 0

Ohio Scientific Challenger 4P software

by lord_philip＠mac.com

Hi, Did you ever figure out you dilemma regarding your lack of Ohio Scientific floppy media? I'm basically in the same place having a disk system, but no floppies. I've even tried 'building' a floppy using disk images found on the net, but the process seems almost impossible and I ultimately failed. I've been requesting in various places and forums for anyone who can make me some copies of their working media, but no one has replied. this is certainly a sad state of affairs, and I worry that if too much more time passes then we may loose all working media.to ravages of time and may loose the ability to make new OSI floppies. I have also been helping develop a paddle board that will basically allow OSI users to replace their old and dying original drives with something more modern like a 3.5" disk drive. We have the first prototypes of the board in but I have thus far failed to get it working and need to do some further troubleshooting. In the future I really would like to build a database of software and disk images and find some way for diskless OSI users to bootstrap and create working floppies. Anyway, excuse the rant Cheers Phil

14 years, 1 month

4
6
0 0

a for-parts machine doesn't work

by alanp＠snowmoose.com

Tony Duell wrote: > The one that amuses me is 'Worked fine the last time I used it'. Of course > it did. You couldn't have used it if it wasn't working:-). It doesn't > mean it's not failed since then (and inded that the seller hasn't tried > it, found it doesnt; work and is thuse selling it). You know it is possible for something to work, but not to its full capability, right? The computer that I am typing this message on has a non-functioning DVD drive and occasionally the keyboard and touchpad just stop working. I would not describe it as 'worked fine the last time I used it'. Yet it works well enough that I can use it for lots of tasks. To the original poster, I agree that you probably didn't emphasize the 'for parts' aspect enough. I buy and sell a bunch of stuff online and one thing that I learned is that buyers often do not read things closely. alan

14 years, 1 month

1
0
0 0

Philips P800 family minis

by camiel＠camicom.com

> I won an eBay auction for three Philips P800 family minis with three cartridge disc drives, disc cartridges, lots of spare parts, and manuals including schematics. All for the incredible sum of 10 euros 75. I saw the auction when it had 11 minutes left to go > while I was on vacation (I'm a bit of an eBay junkie, although deals like this are becoming rare). I'm collecting the systems this Sunday afternoon. If anyone wishes to try and identify them from the pictures in the auction: Ebay # 230793403766 Camiel

14 years, 1 month

3
2
0 0

House move continues, more stuff available

by witchy＠binarydinosaurs.co.uk

I hate moving house as much as I hate giving away DEC stuff :( The PDP 11/04 is still here with its RX01 pair, amazed that hasn't gone in a hurry even if it IS a non-worker There's a couple of big monitors too, both mono and I'm fairly sure one each >from a VAXstation and VXT1200. I have VXTs too, base units. I have to be honest with myself that I'm not going to do anything with them. The usual haul of DEC books that everyone seems to have - microprocessor guides, terminals and printers, communications etc. At least 1 DECmate III w/keyboard, no screen though Battered looking Rainbow 100 LA210, maybe LA100 2 boxes of TRS80 software and manuals Apple II software and books. Not after any cash for this but you must collect from Cambs UK. -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?

14 years, 1 month

7
8
0 0

Commodore Datasette Belt

by wheagy＠gmail.com

Yes, I can likely measure the length. Not sure of the width, or how that would be measured? As mentioned in an earlier post, it is a square belt, as opposed to flat or round. Win >>> Does anyone know of a source for the rubber belt in a Commodore >>> datasette >>> (from a PET 2001)? > All kind of belts are easy to be found in Brazil. But I need the correct >lenght of the belt. Do you have a sample or can you measure it with some >line?

14 years, 1 month

5
4
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vt100.net/manx now officially redirects to manx.classiccmp.org

by legalize＠xmission.com

Thanks to Paul Williams for putting the redirect in place. The new manx has now officially assumed all responsibilities of the old manx :-). I've been doing some work on it lately and I've fixed a couple cosmetic bugs and am restoring the editing/updating scripts so that I can work on getting the backlog of bitsavers items into the database. Priority will be given to items linked to bitsavers through the terminals wiki and then remaining bitsavers items. -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://computergraphicsmuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

14 years, 1 month

1
0
0 0

Commodore Datasette belt?

by cfox1＠cogeco.ca

At 01:44 PM 29/05/2012, you wrote: >Hi, > >Does anyone know of a source for the rubber belt in a Commodore datasette >(from a PET 2001)? I've considered buying another datasette to get the >belt, but chances are the belt will be as poor as the one I have. > >Thanks...Win If it is a round rubber belt check your local auto parts supplier for the correct circumference of "O" ring. Cheers Charlie Fox Charles E. Fox 793 Argyle Rd. Windsor Ont. 519-254-4991 N8Y3j8 www.chasfoxvideo.com

14 years, 1 month

4
4
0 0

Software for OCR'ing paper tape?

by elson＠pico-systems.com

cctalk-request at classiccmp.org wrote: > Message: 1 > Date: Thu, 24 May 2012 11:20:55 +0200 (CEST) > From: Christian Corti <cc at informatik.uni-stuttgart.de> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Software for OCR'ing paper tape? > Message-ID: <alpine.DEB.2.02.1205241119530.20068 at linuxserv.home> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > On Wed, 23 May 2012, Jonas Otter wrote: > >> Am I completely wrong if I think I remember that the sprocket holes have a >> fixed relationship to the data holes? If so, it ought to be possible to build >> an optical decoder, illuminate it with a simple light bulb, connect it to an >> input-capable parallel port on a computer with suitable software, and simply >> pull the tape through by hand? The sprocket holes would function as a clock >> for the data. >> > > Now guess how a classic photoreader (optical paper tape reader) works... > This was done YEARS ago, in the very earliest microcomputer days. Jon

14 years, 1 month

9
15
0 0

Need 4-pin PSU to front motherboard connector for Sun V210

by microcode＠zoho.com

A kind-hearted list member sent me a PSU and some RAM for my V210. I finally got around to installing stuff today and I found out one of the connectors on the new PSU I received has shattered and splintered and can't be used. Apparently from heat or age or both it became so brittle it started disintegrating and the pins must have gotten damaged along the way. The connector I am talking about is the 4 pin square connector that goes through the bulkhead to the front system board and terminates behind the system configuration card. The PSU I was going to replace failed today after I put it back in when the new one couldn't be used. Although the BIOS is showing every possible PSU error the system seems to run ok, as before. Sun sure made good stuff! Their servers even run fine with a failed PSU... As I was doing all this I spilled a nice full cup of coffee (that I had deliberately moved out of the way, or so I thought) all over a Filco while moving stuff around so I could work on this machine. At least now I get to test the "wash the keyboard in the shower" theory. So far it's dead but maybe it will start working again when it dries out. If not that was an expensive cup of coffee. At least the RAM I installed works. Anyway, is it possible to get a hold of these connectors along with the crimp-on pins? They look fairly standard, I just don't know who sells stuff like that. I don't know if I can post attachments to the list but I have pics if anybody can help. I'm also looking to buy additional PSUs and RAM for V440 and V210s. Somebody had said they had some RAM to give me but it's been a long time and nothing heard. If you have anything to sell please email me with your prices. Thank you.

14 years, 1 month

3
5
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Also a Quantum 2020 was Re: M7555 For How Much???

by innfoclassics＠gmail.com

> Anyone seen: > > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190684935842 Surplus dealer in Cleveland with unrealistic expectations. Since he deals in medical and process control equipment he probably sells enough big stuff so he doesn't have to worry about the small stuff. At least he takes offers so he is negotiable. Most of the listings are a set (buy it now) price or best offer postings. And it is a new Ebay requirement that you offer a minimum of 14 days if you take returns. This is reflected in their recent postings. Of probably more interest to the list is this offering, a Quantum 2020 8" hard drive from him. I would recommend making an offer rather thatn taking the buy it now, but he is offering free shipping and the Quantums are heavy. http://www.ebay.com/itm/Quantum-Q2020-20MB-Disk-Drive-SA1000-Interface-/251… I didn't check their feedback on packing and would recommend doing this if you are interested. Also some of these drives have a parking lever and some autopark. It is wise to check and see if it is parked. Paxton -- Paxton Hoag Astoria, OR USA

14 years, 1 month

1
0
0 0

One for Sinclair aficionadi, if you're quick: dozens of Speccys, Interface 1s, Microdrives, even a Rotronics Wafadrive

by lproven＠gmail.com

http://www.ebay.co.uk/itm/380442411168 Anyone want to buy this and split it with me? :?D -- 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

14 years, 1 month

2
2
0 0

cctalk Digest, Vol 105, Issue 66

by elson＠pico-systems.com

Date: Tue, 29 May 2012 12:22:23 +0200 (CEST) From: Christian Corti <cc at informatik.uni-stuttgart.de> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: PDP-11/05 Control (M7261) won't deposit Message-ID: <alpine.DEB.2.02.1205291219530.8955 at linuxserv.home> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed On Sun, 27 May 2012, Jon Elson wrote: >> >> Working on a PDP-11/05. The front panel appears to work, I can step through >> [...] > > is likely the write command is not getting to the memory. There are a > > bunch of ways to make a front panel work, but since this is a raw logic > > machine (no microcode) they probably worked hard to minimize the logic > Stop, the 11/10 and 11/05 are fully microcoded machines. So much that even the minimalistic switch front panel is handled in the CPU microcode. I've learned that when I repaired our 11/10. Oh, yeah! NOW I remember what an 11/05 is, the really short (3U?) machine with the single-line front panel. YES, for some reason I was thinking of the 11/20 or whatever the first model was. You are certainly right about it being microcoded including the front panel control. I did work on an 11/05 about 1980 or so. We moved up to a used 11/45 and then got a VAX 780. Jon

14 years, 1 month

3
2
0 0

Paper Tape

by BobB＠LivingComputerMuseum.org

We are in need of folded paper tape and cannot find a source? Our plan is to purchase rolls and fold them ourselves. Anyone have any suggestions how best to fold rolled paper tape. Bob Barnett Vulcan Inc. Living Computer Museum 503-522-4848

14 years, 1 month

4
3
0 0

FFS: MSDOS 2.10 users manual and more

by dgriffi＠cs.csubak.edu

I have a slipcased users manual for MSDOS 2.10 and a copy of the Motorola CMOS / NMOS Special Functions Data tech book. They're free for shipping from the 93306 zipcode in Bakersfield, California. -- 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?

14 years, 1 month

1
1
0 0

Fwd: CP/M web browser

by aek＠bitsavers.org

This just made my day.. -------- Original Message -------- Subject: CP/M web browser Date: Sun, 27 May 2012 13:21:52 +1000 From: Zhu Feng <zhufeng at notmail.com> Organization: Aioe.org NNTP Server Newsgroups: comp.os.cpm Does any 1 know where to download a CP/M web browser that support Javascript?

14 years, 1 month

7
7
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PDP-11/05 Control (M7261) won't deposit

by ian_primus＠yahoo.com

Working on a PDP-11/05. The front panel appears to work, I can step through and examine addresses in memory, and I can run the CPU and halt it. Deposit, however, does NOT work. When the deposit switch is flipped, the LED's show the correct value, but examining the address again shows no change to memory. I know that this board is the problem, having swapped in a module from a working computer. I can, with the good board, toggle a test program into core. Then, shut it off, switch in the bad board, and the program (still in core) runs, and I can examine all areas of memory and see it correctly. I've only begun to glance at the schematics for the control board, but I would assume there is some kind of write buffer that's not working correctly. I'm going to continue to try to figure this out, but without a card extender, it's very difficult to troubleshoot. Anyone have any ideas on where to start? Failing that, does anyone have an extra M7261 available? :) -Ian

14 years, 1 month

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Commodore Datasette belt?

by wheagy＠gmail.com

Hi, Does anyone know of a source for the rubber belt in a Commodore datasette (from a PET 2001)? I've considered buying another datasette to get the belt, but chances are the belt will be as poor as the one I have. Thanks...Win

14 years, 1 month

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cctalk Digest, Vol 105, Issue 62

by elson＠pico-systems.com

> Date: Sat, 26 May 2012 15:53:35 -0700 (PDT) > From: Mr Ian Primus <ian_primus at yahoo.com> > To: cctalk at classiccmp.org > Subject: PDP-11/05 Control (M7261) won't deposit > Message-ID: > <1338072815.56383.YahooMailClassic at web121606.mail.ne1.yahoo.com> > Content-Type: text/plain; charset=us-ascii > > Working on a PDP-11/05. The front panel appears to work, I can step through and examine addresses in memory, and I can run the CPU and halt it. Deposit, however, does NOT work. When the deposit switch is flipped, the LED's show the correct value, but examining the address again shows no change to memory. > > I know that this board is the problem, having swapped in a module from a working computer. I can, with the good board, toggle a test program into core. Then, shut it off, switch in the bad board, and the program (still in core) runs, and I can examine all areas of memory and see it correctly. > > I've only begun to glance at the schematics for the control board, but I would assume there is some kind of write buffer that's not working correctly. I'm going to continue to try to figure this out, but without a card extender, it's very difficult to troubleshoot > Well, it is not likely to be the buffer (register) as this would require 16 bad FF's. Does the address increment when you hit deposit? If so, that means the switch is being sensed. So, the problem is likely the write command is not getting to the memory. There are a bunch of ways to make a front panel work, but since this is a raw logic machine (no microcode) they probably worked hard to minimize the logic needed. So, probably the deposit and exam logic share a lot of functions, but there is probably a FF that is set for deposit and cleared for exam, and then feeds through some gates to perform the memory read or write. Something in that chain of logic is most likely where the problem is. Jon

14 years, 1 month

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UC08/III to UC08

by shadoooo＠gmail.com

Hello. I have an UC08/III, the quad QBUS board with two SCSI controllers, with metal panel for MicroVAX). I would try to convert it to a plain UC08, the version for LSI11 without the metal panel. The doubt is about the electrical compatibility: if I could remove the panel and solder in place the 50pin berg connectors, the card could work on a PDP11 in MSCP / TMSCP? Andrea

14 years, 1 month

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DEC H9281 backplane?

by mcguire＠neurotica.com

Hey folks. I'm looking for a DEC H9281 backplane, the four-slot, dual width one with screw terminals for power. Does anyone have one lying around that they can part with? -Dave -- Dave McGuire, AK4HZ New Kensington, PA

14 years, 1 month

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Emulex UC07 Problems...

by bqt＠softjar.se

On 2012-05-17 10:00, Holm Tiffe<holm at freibergnet.de> wrote: > Hi, > does someone has a newer firmware Version for the UC07 as G143R? > > I have a double UC07 in my 11/83 and have problems to get Disks > with 4Gbytes working. (DCAS-34330 50 pin). I have an Conner CFP2107S > wich has 2 Gigabytes, I can split the drive and successfully format > the resulting drives with XXDP or RT11. When I connect the 4GB Disks, even > when I fake the geometry to 2Gbytes, the controller successfully formts and > thest the drives, but an init du0: from updat in xxdp doesn't come back. > same with mdup.mu from an RT11 tape. It simply hangs. > > Disk space isn't the concern why I'm trying to use the IBM drives, those > disk are quiet comparing to the conner 2107s, that is what I want. > > Any Ideas? Sounds like there is nothing wrong with your controller. I would suspect the software have problems with such large disks... Not that uncommon actually. It wasn't until RSX-11M-PLUS V4.6 that RSX correctly handles disks larger than the max capacity of the OS (which is 8GB for RSX, by the way, but most other OSes have smaller maxes). Johnny

14 years, 1 month

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Fan-fold paper tape

by peter＠vanpeborgh.eu

...Preferably from Data General. Guys, does anyone out there have some of these? I am a collector and ex-DG employee and would really like to have one or two of these for my collection. Price negotiable... Many thanks, peter || | | | | | | | | Peter Van Peborgh 62 St Mary's Rise Writhlington Radstock Somerset BA3 3PD UK 01761 439 234 || | | | | | | | |

14 years, 1 month

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cctech Digest, Vol 105, Issue 42

by michael.99.thompson＠gmail.com

> From:?"J. David Bryan" <jdbryan at acm.org> > Date:?Sat, 26 May 2012 00:38:37 -0400 > Subject:?Re: HP 3000 micro gx booting MPE/V, Help >>>> > The HP Computer Museum appears to have MPE FOS images available: > ?http://hpmuseum.net/exhibit.php?swc=22 > > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?-- Dave The RICM has an HP 3000 Series 70. Will this OS run on the Series 70? http://www.ricomputermuseum.org/Home/equipment/hp3000-series-70 -- Michael Thompson

14 years, 1 month

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pdp-8/m for sale in Northern Virginia

by lists＠loomcom.com

As much as I would love a pdp-8/m, and as much as I'll probably kick myself for not calling about this, the expense of buying it, crating it, and having it shipped it to California would just more than I care to take on right now. If this were west of the Rocky Mountains, it would already be in my car :) I have no more info than what's in the post. I don't know what "worse for wear" means in this case, but I hope it's not too beaten up. http://washingtondc.craigslist.org/nva/sys/3030206025.html -Seth

14 years, 1 month

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Cross post VAX POLY question question

by abs＠absd.org

A question of nettiquette for the list :) If I had a question regarding the VAX POLY instruction and alternatives for post CVAX processors which I think might be relevant to cctech at classiccmp.org and port-vax at netbsd.org would it be considered port manners to cross post to both? :) (Or would cctalk@ && port-vax@ be a better cross post if any?) Thanks

14 years, 1 month

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HP 3000 micro gx booting MPE/V, Help >>>>

by g-wright＠att.net

Any Hp Mpe folks left out there I have non working 3000/37s with possibly good drives and a 3000 micro GX that works but has a bad drive. I have tried to boot the micro GX from the 3000-37 drives and get this far. ---------------------------------------- Cold Boot > HP 32033G.B2.02 Performing a Coldstart Following Volumes not found MH7957U1 List Volume tables ? ---------------------------- Seems to freeze after that. It does this on 2 different drives. Is this even possible to do ??? Does anyone have a OS tape for one of these ??? and which manuals cover the boot menu and/or startup. I would like to get both going but the 3000-37's have dead mother boards. Stan Sieler, are you still around. Seems like every search I do comes up with your name and advice. Thanks, Jerry Jerry Wright g-wright at att.net

14 years, 1 month

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Software for OCR'ing paper tape? (was: Question about, Military

by jonas＠otter.se

On Tue, 22 May 2012 19:31:10 +0100 (BST), ard at p850ug1.demon.co.uk (Tony Duell) wrote: > I personally find it ridiculaor that people are suggesting that something > like a paper tape reader, for which the mechanical parts could be made in > any model engineer's workshop and the electronics is a handful of parts > should be emulated by a scanner (many moe photodetectors than necessary > and a powerful processor to prewcess the images from said scanner. Please > stop trhwing silicon ant the problem! Am I completely wrong if I think I remember that the sprocket holes have a fixed relationship to the data holes? If so, it ought to be possible to build an optical decoder, illuminate it with a simple light bulb, connect it to an input-capable parallel port on a computer with suitable software, and simply pull the tape through by hand? The sprocket holes would function as a clock for the data. Agreed it is rather primitive, but for a one-off job of not too much tape it could be less work than messing around with a scanner. /Jonas

14 years, 1 month

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Datapoint 8200 & 8600 computers

by legalize＠xmission.com

ebay # 190680984602 FYI. I'm not bidding on it. -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://computergraphicsmuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

14 years, 1 month

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FS: RA-81 drive spindle and disk enclosure

by alanp＠snowmoose.com

I am cleaning out the garage. Found a couple more RA-81 pieces to pass on. These items are light enough that there is no problem shipping them. Items are located in the Seattle area. The drive spindle is about 7" diameter and 6" tall. The platters were stacked on vertical separators with the spindle in the center. There is a pleated air filter that goes around the inside, center of the spindle. The disk enclosure is about 16" wide, 18" long and 7" tall. It held the platters, spindle and head assembly. As far as price, make an offer. I really just want to get stuff out of my garage, but, if someone wants to pay for the stuff that I am getting rid of, that would be awesome. For photos, check out this link - http://www.vintage-computer.com/vcforum/showthread.php?30901-Drive-spindle-… alan

14 years, 1 month

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Human language [was RE: Line length [Re: VT220 focus]]

by RichA＠vulcan.com

From: Rod Smallwood Sent: Wednesday, May 23, 2012 9:09 PM > Japanese code for example was totally different as their language is > based on ideographs. Please stop spreading erroneous information. One of the writing systems used for the Japanese language, kanji, is _logographic_ (each written sign denotes a word). In reading Japanese, each such sign can be read in as many as 10 different ways, depending on whether it is read as a native Japanese word (or morpheme, that is, a unit of word formation possibly "smaller" than a full word--English "-ly" is an example), called kun-yomi "Japanese reading" or as a Chinese word in one of 4 different sets of pronunciations (kan-on "Han sound", the most common; go-on "Wu sound", used chiefly in reading Buddhist texts; to-on "Tang sound", used in reading some later literature; and kany?-on "idiomatic sound", which are often "correct" Chinese pronunciations which violate the rules for the other 3 systems). The occurrence of synonyms complicates things further. In addition, there are 2 additional scripts, both ultimately derived >from simplified ways of writing kanji, called hiragana and katakana. Both are syllabaries, that is, each sign represents a single syllable of the word, and multiple signs are used to write the word. The Japanese *language* is based on vocalizations produced by the human throat and mouth, representing neural events in the brain, like all other human languages. Rich Alderson writing as someone with undergraduate and graduate degrees in linguistics rather than in my usual role, so not the usual .sig

14 years, 1 month

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Includes Hangman !

by tshoppa＠wmata.com

Just looking at old DECUS catalog entries as to "first hangman" on a DEC computer, it only helps us with DECUS releases, but: DECUS NO 12-36 Hangman for PDP-12 PDP-12 with A/D, VR12 Display, Basic LlNCtape System, SK Memory, ASR33, KWI2, KE12 LAP6 Jud Gilbert , Florida St a t e University, Ta l l aha s s e e , Florida This word game is based on the penc i I and pape r s t i ck figure drawing game . One pl aye r types in a book t i t l e and a c lue . Another pl aye r guesses l e t t e r s . Six incor r e c t guesses loses. DECUS No. FOCAL-42 (implicitly PDP-8 FOCAL) The Hangman Game Dan Miller , Glastonbury, Connecticut The program a l lows the user to pl ay the game of Hangman' with the computer . Project Delta, Clark Barker, DECUS RSTS-11-002 1 REM HANG CLARK BAKER 2/73 DSAA PROJECT DELTA 10 ! HANG WILL PLAY A GAME OF HANGMAN ON A CRT (VT05 OR VT06).

14 years, 1 month

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