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

by dave13＠dunfield.com

WOW - a lot of response in just 1/2 day! Just a few notes to clear up a few things: I am NOT "giving away" the collection - I will no doubt give away some parts of it, but I know local (to me) collectors who will take those bits, so please only ask for freebies if you are very close to Ottawa, Ontario. It also doesn't do much good to ask me "how much do you want for xxx" as I really don't know, as I have never made a point of placing values on the items in the collection - better to let me know what it is worth to you. Ultimately any particular item will go to whomever places the highest offer, or in some cases places where I know the particular bit of equipment will do the most good or have beneficial effect. At present I am planning to keep at least one of the Altairs, the Imsai, the Vector, the Horizon, the H8. one of the "chicklet" Pet 2001s the VLC VAX, the D6809 (or course) and a probably couple of others I have not decided on ***. *** I'll willing to entertain offers on these systems, but don't expect them to be cheap - I'm just as happy to hang on to them. I'm not keen to ship - I know this lets out many (most) of you, but preference will definately be given to people who can arrange pickup or take care of most of the shipping hassles remotely. In particular, I can't easily tell you what shipping will cost - most of this stuff is heavy, and it is a lot of work to pack something, measure it, weigh it and get a quote - which will likely be too high (as you all know, much of this stuff isn't worth the cost to ship). I'm happy to work with you to figure out ways to get things to you - perhaps piggybacking transport on someone already planning to come here etc.. (You might be able to coordinate such things through the list as well). Thanks, Dave -- dave13 (at) Dave Dunfield dunfield System/Firmware development services: www.dunfield.com (dot) com Classic computers: http://www.classiccmp.org/dunfield

13 years, 3 months

2
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RSX-11Mplus boot SAV -- Cannot find Home Block on fpga pdp2011

by cclist＠sytse.net

I've long thought that my pdp2011 would run just about anything pdp11. However, it was recently brought to my attention that RSX-11Mplus will not boot from an rp06 disk image. I mean, an rp06 image created on simh, based on the rd54 image in rsx11mpbl87.dsk.bz2, sysgenned to support rp06 drives, and working without any problem on simh. The first steps in the boot on the fpga appear to work fine - several reads are done, and the first message appears: "RSX-11M-PLUS V4.6 BL87 1024.KW System:"RSXMPL". So far exactly the same as when I run simh on the same image. However, after a brief pause in which the cpu is busy, a difference appears: simh will continue with a few reads and finish the boot process; however, my fpga will start reading sectors from each cylinder of the disk in ascending order - ie, beginning at cyl 0 and ending at the last one. When at the last cylinder, the message "SAV -- Cannot find Home Block" appears. Strangely, if I google that, it comes up with a reference to Ersatz-11 from 1994 which appears to describe exactly the same behaviour - only then on RL, apparently. See ftp://minnie.tuhs.org/pub/PDP-11/Sims/Ersatz-1.1beta/Old/e11beta.txt I've spent most of my free time last week chewing on this problem, looking at many details in my controller vhdl. However, I've not come any closer to a solution. At this point, I'm not even completely sure that the problem actually is in the controller - since E11 had the same thing in it's RL, and that is a completely different thing. So, I'm hoping that someone on this list can help me understand what the trigger(s) for the "SAV -- Cannot find Home Block" could be. Is there maybe someone who remembers the original issue in E11, and how it was fixed? Or is there someone with access to the source code who could explain what happens?

13 years, 3 months

5
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uVAX 3900 out to lunch after inactivity

by fraveydank＠gmail.com

The long saga of making my recent KA655 acquisition work continues! It's been mostly smooth sailing since I got a decent Plextor drive, but there's one persistent problem. Under VMS 7.3, after a longish period of inactivity (I've seen it after a few hours, but I've not been able to narrow it down beyond that), it seems to just kind of go out to lunch. VMS is still *running*... if I have a Telnet session running MONITOR, the clock will still update and the activity meters still move (a little; they show very little activity, but that's expected since there's not a lot going on on the machine yet). But if I terminate MONITOR (it responds interactively to ctrl-C, etc) and try to run anything else (say, HELP), it stops responding. Other terminals are totally unresponsive. If I try to open a Telnet session, TCP connects but no other traffic happens. This also happens if I turn TCP/IP off. I'm running with 16 MB RAM, which should be enough for a machine that's not really running much yet, and if I were having memory issues I would expect things like existing MONITOR sessions to have serious problems. The only other correlation I can think of is that this seems to happen most when I've just installed a layered product, so it could have something to do with the CD still being mounted. On the other hand, I tend to leave the machine alone and unattended for long periods of time for product installs, so correlation is necessarily not very trustworthy here. I can still issue a break from the terminal and boot again >from the console firmware, so that still seems fine. If anyone has any idea what might be going on here, I'm all ears. - Dave

13 years, 3 months

1
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Airplane cockpit instruments, DEC PDP peripherals and other old computers on ebay, near Munich

by joerg.sigle＠jsigle.com

Hey guys. Here are some DEC drives, among other things. Obviously someone who selected interesting hardware and stored it rather carefully. I was considering the Apollo or even the Technostar, but it would be an effort for me just to get there. If anybody is closer or very interested, tell me, so I may not bid. The seller (acting on behalf of owner) wrote he gave the PDPs "in good hands :-)" (his own?), but his prices are not so low, and he says he is considering 350 EUR for 8 apollos with only one Monitor, two keyboads, mice, unknown condition, long storage... Just wanted to point you to the auctions, just in case. ebay auctions: 251267118551 251270611957 251268195362 251270185222 PDP RL02, some RL06 and 07 have apparently already ended. etc. pp. (Please look for other auctions of this seller, included completed ones.) I think it would definitely be very sad to let these machines go to scrap - would anybody second that? :-) Kind regards, Joerg

13 years, 3 months

1
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Downsizing - many systems available

by dave13＠dunfield.com

>> The collection can be seen at: www.classiccmp.org/dunfield >> >> [Keep trying if it says "service unavailable" - the classiccmp >> server seems to be having problems lately] >> >Most of the picture links appear broken. :( The links are not broken. The classiccmp server is broken. The photos don't work because you browser cannot access them - try enough times and you will usually see them (or go nuts trying). It's not just my site - the entire classiccmp server is having problems and has been for quite some time. Most of you don't see it because you access cctalk/tech via email, which gets done "in good old time", however I am not actively subscribed to the list any more (too mucn traffic), so I read the list via the web archives - depending on the time of day and phase of the moon, this can be damn near impossible. Many days I just give up. Makes the site pretty useless I agree - If anyone can provide a better host for the site I'm very interested, but for now I just don't have another place to put that much material - the alternative is probably going to be just taking it down as it really hasn't worked properly in weeks. Dave -- dave13 (at) Dave Dunfield dunfield System/Firmware development services: www.dunfield.com (dot) com Classic computers: http://www.classiccmp.org/dunfield

13 years, 3 months

2
1
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ios IBM 5170 hard disk with 47 user

by enrico.lazzerini＠email.it

I'm trying to install a hard drive IBM H3256-A3 (manual here <http://www.hgst.com/tech/techlib.nsf/techdocs/7BF937434F9F7BBC86256E9000734 60D/$file/oem3fspe.pdf> http://www.hgst.com/tech/techlib.nsf...e/oem3fspe.pdf ) in an IBM AT 286. I state that the motherboard 286 type 1 with a controller AB-862G SUPER MULTI I/O CARD and a pair of drive performs the correct boot of the dos 4.0 (with no hard disk connected and configured), and that the alone hard drive works and has been perfectly formatted in dos way on another P3 machine. I replaced the original U27 and U47 with the bios BIOS_5170_30APR89_AMI_D286-1277-043089-K0 (downloaded the AMI BIOS FOR 5170 at the bottom of this page <http://www.minuszerodegrees.net/bios/bios.htm> http://www.minuszerodegrees.net/bios/bios.htm) to have the option 47 user disk. Following the instructions given in the manual of the hard disk IBM H3256-A3 fields to be filled in bios are: cyl = 872, heads = 16, Wpcom = 65535, Lzone = 0, sect / trk = 36, obtaining a total capacity of 245.205 MB (=872x16x36x512/1048576). After turning on the machine, however, it stops and it does not proceed either boot from a floppy or even the keyboard responds any more. Instead without hard drive connected and / or configured the machine works perfectly. Thanks for any useful suggestion. Enrico

13 years, 3 months

1
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Multicians wonder what terminal this might be

by jws＠jwsss.com

Tom Vanvleck posted this question about a terminal. I would have just sent it to Richard, but figured someone else might recognize it also. I got mail from someone asking about a terminal he had salvaged. I added the photo to the "photos" section of the gorup: http://groups.yahoo.com/group/multicians/photos/album/1199215560/pic/list If you are not a member of that group, I put the photo here: https://www.dropbox.com/lightbox/home/Public/multicians-photo It appears to be a VIP terminal.. he wrote The only thing I've found on Google that remotely resembles it, is in a Multics brochure from 1977, page 4: http://archive.computerhistory.org/resources/text/Honeywell/Honeywell.Level…

13 years, 3 months

8
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Speaking of FPGAs...

by legalize＠xmission.com

This looks like an easy way to get started. <http://papilio.cc/index.php?n=Papilio.LogicStartMegaWing> <http://papilio.cc/uploads/Papilio/IntroToSpartanFPGABook.pdf> -- "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>

13 years, 3 months

12
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Box of old books

by db＠db.net

I've put together a small box of old TTL books, computer references of all sorts that I simply do not want anymore. If someone really wants to collect old databooks instead of me sending this stuff out to pulp let me know. It would be easiest if someone local to me here in Ottawa could deal with it. The other alternative is for me to get it moved to Toronto for someone else to deal with it. - Diane -- - db at FreeBSD.org db at db.net http://www.db.net/~db

13 years, 3 months

1
0
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Apple IIe keyboard switches

by jules.richardson99＠gmail.com

I acquired an Apple IIe at the dump the other day (and a pair of IIgs machines, sans keyboards/mice - more on those later, probably). Something heavy has been dropped on the keyboard - there's no damage to the keytops (amazingly), but the keyboard PCB is cracked and the frame mounting points bent, and in testing switches around the damaged area I've found that the '=' key is permanently shorted (I assume it took the brunt of the impact from whatever-it-was, unless the switches in these machines are prone to decay and subsequent shorting). Anyway, is it just a case of desoldering the switch and prying it out of the metal frame, or is there more to it than that? I did try a little careful coaxing and it didn't want to move, but I don't want to try more force if it's the wrong approach. cheers Jules

13 years, 3 months

13
31
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RRD50 Cable documentation

by rick＠rickmurphy.net

I'm in the process of trying to resurrect a MicroVAX-II system. I have a RRD50 cd reader and the associated KRQ50 controller. What I'm missing is the cable between the cabinet kit and the drive. I've tried various incantations, including a AUI cable (DA15 to DA15) and what I think is a straight-through cable. I also hooked the cabinet kit DA15M direct to the drive with no success. In most cases the drive spins up but when I try to boot it, the red error LED on the drive blinks then it spins down. So, I've got to build a cable. Does anyone have documentation of the pinout of what I need to build? Thanks, -Rick

13 years, 3 months

5
15
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intel mds225 for sale

by tdk.knight＠gmail.com

one of the guys at my hackerspace has a intel mds 225 its power up to diag mode when the board is pulled from the back plane but when inserted the screen goes all fuzzed and crazy never been able to trouble shoot it gone over it with a meter pulled all cables boards out put them back in has pile of software and manuals and drawings to go with it and a prom rom programer reader and a another device of some sort http://www.flickr.com/photos/1ajs/6171038488/lightbox/ funds going to supporting a community hackerspace. if i was not broke i would just buy it myself to add to pegcity bits i can get a video of it powering up if anyone wants to see make offers o its located in winnipeg canada

13 years, 3 months

3
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Well, that was depressing.

by jules.richardson99＠gmail.com

They just had an e-waste recycling event in town; different company to the one that did such an event once before. Last time I was allowed to check for vintage systems, but there wasn't anything useful there - just few-years-old PCs. This time around there was an entire dumpster full of vintage Apple hardware, but I wasn't allowed anywhere near it - it all goes back to Wisconsin for "processing". Apparently they do occasionally ebay some vintage items, but the way this lot had just been tossed into the dumpster makes me think that it's all off to the crusher. (and of course there was the Disk II drive that I need, sitting right on the top of the pile!) Of course it's their right to do what they want with it - it's just frustrating not being able to save any of it. Jules

13 years, 3 months

7
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cctech Digest, Vol 117, Issue 2

by michael.99.thompson＠gmail.com

---------- Forwarded message ---------- > From: "Zane H. Healy" <healyzh at aracnet.com> > To: "General Discussion: On-Topic and Off-Topic Posts" < > cctalk at classiccmp.org> > Cc: > Date: Wed, 1 May 2013 14:48:41 -0700 > Subject: Re: Multicians wonder what terminal this might be > At 2:37 PM -0700 5/1/13, Jim Stephens wrote: > >> imgur is a bit confusing. try this. >> >> http://imgur.com/a/6FnnP >> > > Is it sitting on something, or is the base part of it? > > If the base isn't part of it, it reminds me of the TEMPEST terminals from > Honeywell that I used on a DPS-8. > > Zane > We had hundreds of those VIP screen-mode terminals connected to a Honeywell DPS-8 in Cambridge. The big blue box had a synchronous RS-232 port to connect to a multi-drop synchronous modem and eventually to the Datanet front-end processor. The serial protocol was special for the VIP. There were two COAX cables from the big blue box to the terminal, one for the keyboard and one for video. Some of the really old versions had mercury delay lines for the video memory. -- Michael Thompson

13 years, 3 months

1
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Block-oriented Magnetic Tape Drives

by pbirkel＠gmail.com

All; I'm curious as to what other manufacturers/systems supported the use of block-oriented magnetic tape media along the lines of the DECtape (TU56) and DECassette (TU60) drives. In particular, what about the use of standard 1/2" tape media under such circumstances? A wear-n-tear problem given the multi-pass nature of this use (especially if being used to store temp-files for the OS), but if that scenario were avoided ... I'd like to play around with some, but acquiring either a DECtape or DECassette unit looks to be somewhere between impossible and merely seriously unaffordable -- not to mention obtaining media for use with either. So I'm thinking about whether there are possibly other drives out there for which I might construct a suitable controller to mediate between the raw(er) mechanism and the OS. Unlike a streaming tape unit I'd expect that a major consideration would be keeping the moment-of-inertia of the reels as low as possible, consistent with holding a sufficiently long tape at sufficient bit-density to achieve an economically-viable amount of storage per tape (*e.g*., 256Kb -- DECtape was 184K 12-bit words or 144K 18-bit words). DEC managed it; did anyone else? (Of course, if anyone has a lead on a DEC unit -- DECtape preferred -- I'm very interested.) Thanks for your thoughts! ----- paul

13 years, 3 months

11
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Apple IIgs - IIe keyboard

by jules.richardson99＠gmail.com

As mentioned in my post about IIe keyswitches, I acquired a couple of IIgs machines at the same time as the IIe (along with an AppleColor RGB monitor) - but no ADB keyboards or mice. I've just checked over both systems; one has an Apple memory expansion board fitted (2MB, I think) and the other has a Harris GS Sauce memory expansion board (also 2MB via a pair of 1MB simms) and what I think is an Apple SCSI board (nifty!). Both seem to power up OK and sit there trying to boot from non-existent media (display via composite; I don't know if the CRT monitor works - it's on the to-do list to make a cable). Anyway, the machine with the SCSI card looks to be an earlier board, and has a keyboard socket soldered to the PCB. Wikipedia seems to suggest that this should accept the keyboard from my IIe, albeit with reduced functionality over a genuine ADB keyboard - however, is it as simple as plugging it in, or are there other tweaks that are necessary for it to work? (e.g. perhaps worst-case a ROM change for a ROM that I don't have!). Although I'd like to get an ADB keyboard and rodent, I'm curious to see if the IIe keyboard will work in the meantime... cheers Jules

13 years, 3 months

3
4
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Two Maxell CS-600XD data cassettes for cost of shipping

by classiccmp＠crash.com

Anybody need actual official data cassettes? I've got two (2) free to anybody who wants to pay the cost of shipping - I'll use bubblewrap and toss them in the smallest USPS flat rate box, that's $5.80 last I checked. "Maxell High Density Data Cassette - 183 m / 600 ft. - 16,000 ftpi. - D/CAS-86 COMPATIBLE CS-600XD Made in Japan" Labels are blank, write-protect switch is in the protected position. Excellent condition, clean, not sure where I found them. PayPal preferred. --S.

13 years, 3 months

1
1
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Imlac PDS-4 information?

by derschjo＠gmail.com

Long shot, but does anyone have any documentation or software for the Imlac PDS-4? I'm working on an Imlac emulator/simulator (for the -1 and -1D) and I'd like to support the -4 as well, as it appears to add some interesting options; problem is I'm not finding a lot of detailed information about what and how it works :). (Hardware documentation/schematics would also be interesting - I have a set of what appear to be PDS-4 core memory boards and I'd love to be able to debug them since they're in rough shape...) - Josh

13 years, 3 months

3
3
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Kaypro System disks?

by dave13＠dunfield.com

>>> When you create 360/1.2M disks by formatting on the PC - can you then >>> read and recreate those disks with IMD? >> I tried reading and then recreating a DOS 360K disk. Worked fine. >> >> It even seemed to read a known good Kaypro disk. But, I tried writing >> it out with no luck. It did, though, write it out with no errors, so >> I think I have two issues. One is that the K10FLOAD.TD0 file that I >> converted to an IMD did not convert correctly, and the other is a lack >> of correct settings on IMD. >> >> When I read my known good DSDD Kaypro boot disk, I set tracks to 80, >> stepping to double, and sides to 2. But, IMD tries to read all the >> way up to track 80, when I thought it would stop at 40 (80 tracks, >> double stepped). >Update: I was able to copy a known good Universal ROM boot disk and >boot it on the K1. So, at least I know my setup works. I still don't >understand why the read of the disk tries and fails to read tracks 41-80 >with doublestepping on. I also don't understand why running td02imd on >k10fload.td0 didn't create a good imd file I can use with the utility. If you take the time to read/understand the IMD docs and/or help screens, you will note that I explicitly state that IMD does not make ANY assumptions about your drive. It simply uses the capabilities of the controller to see what it can find "out there". The point of note here is that it supports up to the theoretical maximum of 255 cylinders that the 765 controller architecturally supports. So why would it assume that your drive cannot have more than 80 physical cylinders. It has no idea what type of drive you have. Sure, drives with more than 80 cylinders aren't common, but sometimes extra data is hidden in an extra track beyond the end... Some times two tracks ... why may any such assumptions - At one time 8" drives with 77 cylinders were "as big as it gets" - so NEC designed a 77 step limit into the original 765 ... which means they fail on long seeks on more modern 80 cylinder drives - requiring software workarounds ... IMD makes no assumptions about the drive - it simply does what you ask it to do. When you set double-stepping, you are simply telling IMD to send two step pulses for each cylinder it wants to move the head. It will try to read the number of cylinders that you specify. It does not "guess" that your drive may not be big enough to contain those cylinders because of other settings that you have made. IMD is about doing what you ask it to do, not trying to "fix it up for you". If you want to read a 40-cylinder disk --- set it to read 40 cylinders. It defaults to 80 cylinders because that will read most comon disk types without the user having to actually know what he is doing. Most drives will allow seek a couple of tracks past the certified number of tracks. In *MOST* disks, these "extra" tracks will not contain any data. At it's default settings, IMD will stop when it encounters a track with no discernable data - in *most* cases, this signifies the end of data tracks on the disk. So if you read a 40 cylinder disk while set to read 80, it will read 0-39 and stop on track 40. But this is because it "ran out of tracks" when it hit the extra track (40 = track# 41). But... if the disk contains data in this area, IMD will happy continue reading up until it either runs out of data, or hits the specified cylinder limit. This is why some of my Kay disks have the extra SD track 40 -- the original disks actually have this track one step beyond the certified limit of the drive. It also means that if your drive does not step past the certified limit, or you have data in all of the "extra" tracks before it hits the stop, then it will continue to step, banging the head against the stop until it gets to the number of cylinders you specified (because it never runs out of tracks with data). I designed IMD to be a fairly powerful tool, and not to limit you by making assumptions about what you are doing - as a result, you have to know more details about what you are doing than "other" disk archival utilities ... I do provide a lot of useful information in my docs and help files to help you get it sorted out, but it does require an inventment in time/effort to get there. Which leads to the question ... if you have TeleDisk images for the disks you want to create, and are finding IMD unsuitable - why not use Teledisk to recreate the disks. TeleDisk is designed to "make it easy" - it looks at the BIOS settings to see what kind of drive it is, and makes decisions based on that - for basic operations, it will be simpler than IMD to use. Dave -- dave13 (at) Dave Dunfield dunfield System/Firmware development services: www.dunfield.com (dot) com Classic computers: http://www.classiccmp.org/dunfield

13 years, 3 months

2
1
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Kaypro System disks?

by dave13＠dunfield.com

>> When I read my known good DSDD Kaypro boot disk, I set tracks to 80, >> stepping to double, and sides to 2. But, IMD tries to read all the way >> up to track 80, when I thought it would stop at 40 (80 tracks, double >> stepped). > >WHOA! >You asked for 80, and it tried to do 80. You seem to be assuming that it >would divide by the double-stepping and do 40. (Actually, it is prob'ly >planning to stop at #79, V #39) > >1) When IMD asks "tracks", is it asking >A. Cylinders of the disk format (AKA "tracks [per side]") >B. number of cylinders TIMES number of heads >C. cylinders of the DRIVE The setting is "Cylinders" in the main settings menu, and it indicates the maximum number of cylinders that IMD will attempt to read from the disk (when writing IMD uses the cylinders occuring in the image - unless you use the track exclusion feature to avoid writing certain ones). >But, are you sure that IMD is counting both sides of a cylinder as >separate tracks? >When dealing with hardware, it is not uncommon [albeit inaccurate] to >treat "track" and "cylinder" identically. >"1.2M drives are 80 track" V "360K drives are 80 track (40*2)" >"Directory is on track 4" usually does NOT mean cylinder#2, side B IMD uses "Cylinder" to refer to the actual cylinders - ie: actual steps of the head(s) - it uses the "Singe/Double sided" setting to determine how many tracks occur in each cylinder ("as read" means it will try to read both sides for the first few tracks to determine. >> But, when I set retry to 0, and it goes all the way up there, I still >> don't have a good copy. > >If retry is set to 0, then it won't even try again when it hits an error, >which is VERY common with floppy drives. >NOT GOOD for getting usable disks. A good default is 5 - 10 >In SOME programs, NO RETRIES is useful for TESTING, as ANY error, no >matter how soft will be reported. >In SOME programs, 1 - x are the normal values, and 0 is treated as a >special case, either as '0' means "never stop trying until you succeed", >which is useful for desperate recovery, or >in SOME programs, '0' is a special case, and just means 256, 65536, or >4294967296 (DEC CX JNZ...) In IMD 0 is a special case, but it means to quickly scan the disk getting what it can on one read and NOT to re-analyze the disk if it cannot read data from a track - in doing so it also prevents the automatic stop when data runs out ... it's just a quick way to scan the whole disk to check a particular format. Agreed is it not recommended as a way to get reliable disks. >BTW, Kaypro puts an INCORRECT value in the "Head Number" field of the >sector headers of all of the sectors on side B. Fortunately, like the >extraneous SD track that Dave encountered on the 41st cylinder (#40), it >is ignored in use. Both are irrelevant to the current project, but quite >important if you want to use INT13h to read, write, or format Kaypro >diskettes. They also use different sector numbers on side 1 - in fact, they logically number both sides as if it were a single side (head 0) with ascending sector numbers through the sectors on both sides. IMD simply records the cylinder, head and sector numbers found in the sector headers of any given physical track and recreates them as it writes the disk - it does not expect them to contain any particular value, so it reads/writes kaypro disks with no problems. Dave -- dave13 (at) Dave Dunfield dunfield System/Firmware development services: www.dunfield.com (dot) com Classic computers: http://www.classiccmp.org/dunfield

13 years, 3 months

1
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First web site restoration

by Paul_Koning＠Dell.com

Saw this in a newspaper article: CERN has brought back to life the first website -- of 20 years ago. http://info.cern.ch/ paul

13 years, 3 months

4
3
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R4400 SGI Indigo - wild roar shortly after power on.

by trasz＠FreeBSD.org

I have a broken SGI Indigo I'd like to fix, but I have no idea where to start. The most obvious problem is that shortly after power on - two seconds, maybe three - a noise starts coming from the internal speaker. The sound becomes louder and louder with every second. No startup chime, no output on serial console. My initial thought was a broken power supply, but a PSU repair guy I've found claims that power supply is ok and voltages are correct and clean. He also says that he tried to bend the "mainboard" - probably the CPU board - slightly and this sometimes leads to the startup chime. Any suggestions are welcome. Thanks :-) -- If you cut off my head, what would I say? Me and my head, or me and my body?

13 years, 3 months

4
5
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Conventions/Shows in the NY/NJ/CT area

by curt＠atarimuseum.com

Anyone have a listing of shows coming up in the NY/NJ/CT area... Anything for computers and/or videogames... I would like to see about getting a vendor table to sell copies of the Atari Inc. book and to also sell my USB joysticks and my newer versions that are ready May 1st. Thanks. Curt

13 years, 3 months

2
1
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Kaypro System disks?

by dave13＠dunfield.com

>Booted to DOS 5.0, on AT class machine, drive B set to 1.2MB, formats >and writes/reads disks fine. imd has been copied to HD, as well as IMD >image. >> >> If you are booting to real/raw DOS ... does the drive work under DOS.? >Yes >> Can you FORMAT 1.2M and 360k disks under DOS and read/write >> them.? If not, you have a hardware problem (for DOS, make sure it is >> configured correctly in BIOS - IMD doesn't use BIOS settings though). >Works fine When you create 360/1.2M disks by formatting on the PC - can you then read and recreate those disks with IMD? If yes, then likely your hardware setup is working. If no, then you may have some compatibility issue with the mainboard controller. (IMD does direct access to the FDC hardware) Fred's post below also reminded me that Kay disks are 10x512 - this can be "a bit tight" for some PC controllers. 765's and derivitives have a "blind spot" just after the index hole - and some versions are worse than others. Once you try to recreate a Kay disk and it fails ... try reading the first track back. Does it get most of the sectors. If the first or last sector is missing, then it likely held off writing the first sector long enough that the whole track with the "extra" sector didn't fit in the remainder of the track. If this happens, you could try slowing the drive down slightly ... you may be able to create a readable disk that way (I almost always have to slow my drives by a few rpm to write Cromemco disks for example). You might also make readable disks by reducing the gaps from the precalculated values.. a little experimentation may be in order. IIRC you indicated that you were using a Teac 1.2M drive - it might be jumperable for 300rpm ... if so, try that - running the controller at 250kbps might improve the situation. I find that generally recreating DD disks can be a little more forgiving with 300rpm drives. Dave -- dave13 (at) Dave Dunfield dunfield System/Firmware development services: www.dunfield.com (dot) com Classic computers: http://www.classiccmp.org/dunfield

13 years, 3 months

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Kaypro System disks?

by dave13＠dunfield.com

>> >A further tip: when writing new floppies with IMD (to generate original Kaypro bundled >> >software for example), I found it easiest to Format the floppy under 22DISK first, as it >> >knows the correct settings for a Kaypro floppy, then use IMD to write to the formatted >> >floppy. Doing this meant the only setting I had to set on IMD is the Double Step (as I >> >have a 1.2MB (80 track) drive, not a 360KB (40 track) drive. >> Makes no sense. IMD knows the exact format of the particular disk that it is writing >> as this was determined at the time it was read, and is represented in the metadata >> of the IMD file - it also formats the disk as it writes it, removing any previous formatting. >> And ... if he's writing on a 1.2M drive (presumed in a HD controller) , he WILL need to >> set a 250->300kbps translation in addition to double-stepping in order to write the disks. >Could part of the confusion there be that >SOME 1.2M drives are 360RPM only, and therefore require the 300kbps >data transfer rate, and >SOME 1.2M drive are 360RPM/300RPM, and when in a 300RPM mode can use the >250Kbps data transfer rate? Is there a "standard" for setting drive speed? - I don't think I've encountered an actual dual speed HD drive setup in a PC (except for some of mine which have a manual "speed switch" on the front panel added by yours truly :-). IMD doesn't know anything about changing the drive speed as I have not seen documentation on this so if this is possible on some drives/controllers, then it might explain it - if 22disk had changed the speed of the drive. Dave -- dave13 (at) Dave Dunfield dunfield System/Firmware development services: www.dunfield.com (dot) com Classic computers: http://www.classiccmp.org/dunfield

13 years, 3 months

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Amusing tweet

by lproven＠gmail.com

https://twitter.com/computermuseum/status/327461803061817345/photo/1 @computermuseum (Computing History) 3m ago If my car travelled back to the seventies it would be the most powerful car on the road!! :-) pic.twitter.com/P2476JP6BC (Pic shows a car boot containing a PDP - I can't read the model number - and an Imsai 8080.) -- 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

13 years, 3 months

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BC18R-06 was RE: RRD50 Cable documentation

by rick＠rickmurphy.net

At 10:03 AM 4/30/2013, Glen Slick wrote: >On Tue, Apr 30, 2013 at 6:02 AM, Cindy Croxton Electronics Plus > > > These companies have this exact cable listed, Bobby at IGS is the least > > expensive. > >I have bought DEC cables from IGS within the last couple of months and >was satisfied with the transactions. Thanks. Given Tony's info, I'll probably try making my own cable as the prices I can find are high enough that it's worth my time to make my own surrogate. I've got plenty of DA15 cables used for T1 work that I can repurpose. -Rick

13 years, 3 months

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Mac Color Classic - How to speed it up? :oD

by alexandre.tabajara＠gmail.com

Wow! Got a Mac Color Classic for $25! :oD And I made it work :oD Now I have a computer for that //e card :o) But it is slow, unbelieveable slow. Is there a way to speed it up without changing the main board? Can I overclock it? I already maxed the memory (but have no VRAM SIMM module) and no FPU, but 16MHz is too slow :( A 575 board would be great, but seems it has a premium price nowadays A little of history: Got this Color Classic and of course, no boot. Took off the motherboard and there was the classic signals of old computers from 90's: Dead PRAM battery, lots of leaked capacitors, tons of dirt. Cleaned the board, changed the capacitors, cleaned the goop with MEK, put a CR2032 with a socket to work as a PRAM battery replacement (these aren't easy to find here in Brazil) and it booted. No "bong", no sound. But it booted properly and loaded system 7.*.*, On shutdown, it BANGed something, and the classic smell of rotten capacitors was felt on the room. I disassembled the computer and wasn't able to find anything. Now the computer wouldn't boot, but no HD. Without the motherboard, the HD would spin up and thereafter, spin down. After disassembling the entire computer, I found the hard disk (!) with 4 leaked capacitors. I changed the capacitors and it still wouldn't boot, turning down the HD after some seconds. I changed the HD to another SCSI I had here from my HP16505A and it wouldn't spin down. HD problem. A more detailed exam shown capacitor goop on the HD digital board. I cleaned it with MEK and it is working properly. Unfortunately, I'm still unable to make it bong. No sound whatsoever. I tried to use an earphone on the audio output, but got no sound. Changed all the polarized caps on the motherboard (even tantalum ones) and no cigar. I still cannot figure what can be wrong. The audio amplifier SEEMS to be working. Interesting point: It bonged ONCE. Tips, suggestions, hints, are welcome :o) Greetings from Brazil, Alexandre Souza --- Enviado do meu Motorola PT550 Meu site: http://www.tabalabs.com.br

13 years, 3 months

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RRD50 Cable documentation

by mcquiggi＠me.com

If all else fails, I can take a voltmeter to my cable and make you a pinout table. Let me know. Kevin > Message: 3 > Date: Sun, 28 Apr 2013 09:24:27 -0400 > From: Rick Murphy <rick at rickmurphy.net> > To: cctalk at classiccmp.org > Subject: RRD50 Cable documentation > Message-ID: <201304281324.r3SDOTpE032247 at rickmurphy.net> > Content-Type: text/plain; charset="us-ascii"; format=flowed > > I'm in the process of trying to resurrect a MicroVAX-II system. > I have a RRD50 cd reader and the associated KRQ50 controller. What I'm > missing is the cable between the cabinet kit and the drive. > > I've tried various incantations, including a AUI cable (DA15 to DA15) > and what I think is a straight-through cable. I also hooked the cabinet > kit DA15M direct to the drive with no success. > > In most cases the drive spins up but when I try to boot it, the red > error LED on the drive blinks then it spins down. > > So, I've got to build a cable. Does anyone have documentation of the > pinout of what I need to build? > Thanks, > -Rick Sent from my iPad

13 years, 3 months

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CERN/NeXT/recreating the first web server

by toby＠telegraphics.com.au

http://www.bbc.co.uk/news/technology-22249490 "Soon to be refurbished: The NeXT computer that was home to the world's first website" "Mr Noyes is reaching out to ask those who were involved in the NeXT computers used by Sir Tim for advice on how to restore the original machines." --Toby (NeXT owner)

13 years, 3 months

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CQD-220 and CD-ROM redux

by fraveydank＠gmail.com

After several days of trying to coax reliable results out of my Pioneer DR-US124X CD drive on the CQD-220, I finally gave up and acquired a proper Plextor drive. The Pioneer had various issues, some of which may just be due to it being in bad shape - I'll have to test it out on some of my Macs to see if that's the case. In case anyone stumbles upon this in an archive, I thought I'd list the symptoms: - After it warmed up, it would throw errors when operated in sync mode, even in the CQD-220's built-in drive test - When not in sync mode, it would work on the built-in test, but would periodically just stop responding. VMS would eventually (after a good 5 minutes or so) give up and declare it "not software enabled". This had an annoying tendency to happen during lengthy installs. - All the other drives in the SCSI chain (a hard drive, a Zip drive and a Jaz drive) seemed to work just fine, so I'm relatively sure it wasn't a termination issue. And yes, the drive was jumpered to 512 byte blocks. It would boot the VMS install CD without the jumper, but it would never proceed to executing the standalone BACKUP program. Someone was selling a 20x Plextor drive on eBay for a pretty good price, so I snapped it up. It's worked 100% reliably since I plugged it in. Perhaps their SCSI implementation is more compliant? All I know is that they have an extremely good reputation, and their user manuals seem to be cognizant of the various reasons you might want to run in 512-byte block mode. - Dave

13 years, 3 months

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Kaypro System disks?

by dave13＠dunfield.com

>That was the end of my successes. > >testfdc sees the drive, but only 300kB DD seems to work. I tried making >an image with the 1.2MB drive, but every sector said write error: no >data, so I gave up. >Then, I took a working Kaypro drive and put it in the PC, and tried >testfdc. I overrode it as 360kb 5.25 drive, and testfdc finds the >drive, but it immediately gives up stating "!No FDC Interrupt" > >So, if there is "a way to do it...", it continues to elude me. An assortment of notes: You need to boot to real/raw DOS ... IMD doesn't work under windows. If you are booting from a floppy, know that IMD reconfigures the controller rendering it inaccessable by DOS while IMD is accessing the disk - so it can't read/write the image file from/to a different floppy. I have a boot disk image on my site that boots and runs from a RAMdisk and contains network tools to transfer the image off (or you can ZIP it to a floppy after IMD is finished). If you are booting to real/raw DOS ... does the drive work under DOS.? Can you FORMAT 1.2M and 360k disks under DOS and read/write them.? If not, you have a hardware problem (for DOS, make sure it is configured correctly in BIOS - IMD doesn't use BIOS settings though). Make sure you are using DD media, and NOT HD media - for 5.25" diskettes, DD media usually has a reenforcing ring around the edge of the center hole, and HD diskettes usually do not have it 1.2M drive spins at 360rpm ... DD drive spins at 300rpm ... my Keypro disks were read on a real DD drive, so they are encoded at 250kbps. If you write them to a 1.2M spinning at 360rpm, you need to set a speed translate 250->300 in order for the density to come out right. My docs and help contain more details on this. I assume It goes without saying, but to use 1 2M drive, you need an AT or later style controller capable of handing HD drives. If you use a DD only controller, you need to tell IMD this - there's a command line option - note that this would only work on DD drives (obviously). I've had issues with 300kbps on certain controllers - mostly with single- desnity (IIRC k4 disks don't use SD) --- I've got info on my site on modifying 1.2M drive to run at 300rpm/250kbps which may work better for you. Also IIRC, some of my kay disks have an extra SD track-40 (41), which existed on the original disks ... I doubt it's required, but I left the images exactly as read when I posted them - if your setup only fails on track-40, try the disks as they will probably work anyway. 1.2M drive is a 96tpi drive. Kaypro disks are for 48tpi drives - you will need to set double-stepping when recreating the disks -- otherwise you won't be able to read them in the 48tpi DD drive. 96tpi drives (like your 1.2M) lay down thinner tracks than 48tpi drives (regular DD drives) - you may have issues reading disks that were written on 48tpi, then re-written on 96tpi, then read on 48tpi ... note that most of the time it works for me, and it would not be the cause of errors writing and reading on the 96tpi drive ... only reading them on the 48tpi after rewriting them on 96tpi ... you can bulk erase the disk prior to creating it in the 96tpi drive if this is causing you grief. If none of the above help, get back to me with exactly what your hardware setup is, what media you are using, what speed your drive is running (There's a test-RPM command in IMD) - and I'll try to come up with some more suggestions. Dave PS: Regarding using TM-100 in PC ... I believe I have gotten one to work, but I find more "modern" 1/2 height DD drives much easier to work with on a PC - PC expects drive to be jumpered as drive 2 (or 1 if counting from zero) and has issues with signals due to it's "rolled cable". IRC you need to jumper the drive (or connector) to provide motor-on with select - it's been quite a while since I worked with one of these drives on a PC. PPS: I've got about 2 dozen "nearly new" Teac 1/2 height DD drives in a box in my basement - If anyone needs one, get in touch with me and we can work something out. -- dave13 (at) Dave Dunfield dunfield System/Firmware development services: www.dunfield.com (dot) com Classic computers: http://www.classiccmp.org/dunfield

13 years, 3 months

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Kaypro System disks?

by dave13＠dunfield.com

>Yes, it's possible to write a 360k disk in a 1.2MB drive. See >http://www.classic-computers.org.nz/blog/2010-02-18-writing-cpm-from-1.2mb-… Bulk-erasing before writing on a 96tpi and NOT re-writing on a 48tpi is a good tip, and does work. However (from the references web page): >A further tip: when writing new floppies with IMD (to generate original Kaypro bundled >software for example), I found it easiest to Format the floppy under 22DISK first, as it >knows the correct settings for a Kaypro floppy, then use IMD to write to the formatted >floppy. Doing this meant the only setting I had to set on IMD is the Double Step (as I >have a 1.2MB (80 track) drive, not a 360KB (40 track) drive. Makes no sense. IMD knows the exact format of the particular disk that it is writing as this was determined at the time it was read, and is represented in the metadata of the IMD file - it also formats the disk as it writes it, removing any previous formatting. And ... if he's writing on a 1.2M drive (presumed in a HD controller) , he WILL need to set a 250->300kbps translation in addition to double-stepping in order to write the disks. Dave -- dave13 (at) Dave Dunfield dunfield System/Firmware development services: www.dunfield.com (dot) com Classic computers: http://www.classiccmp.org/dunfield

13 years, 3 months

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My Mattel Aquarius on YouTube

by terry＠webweavers.co.nz

The dawning of the Age of Aquarius. A new collection video looking at this short-lived 1983 offering from Mattel. http://youtu.be/YpzHPfqKLb8 Terry (Tez)

13 years, 3 months

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UK recycler

by sales＠elecplus.com

For those of you looking for recyclers in the UK where you might be able to scrounge, or ask them to save interesting bits, please take a look at this company. They caught my interest because they exclusively employ disabled/disadvantaged workers. Nice to see a company that helps others out! About Haven Recycle Haven Recycle is a social enterprise based in Glasgow which runs a Waste Electrical & Electronic Equipment (WEEE) recycling and asset recovery operation. We are part of the Rehab Recycle group, servicing a number of large public and private sector organisations including Dell, Microsoft and the NHS. The services we offer include removal and disposal of all waste electrical equipment, secure data destruction both on and off site, office clearouts, asset recovery and re-marketing. We will seek to achieve maximum value from your waste material, with the absolute minimum going to landfill. The aim being wherever possible to reuse, and recycle all Waste Electrical and Electronic Equipment. All work undertaken is fully compliant with all relevant legislation, and carried out to the highest possible standards demanded by the market. While operating as a business, Haven Recycle is also a social enterprise; our unique attribute being that the majority of our highly skilled and comprehensively trained workforce comprises of disabled and disadvantaged adults. We carry out ongoing programmes of training and integration to ensure that all our work is carried out to the highest possible standards demanded by the market, and our impressive client list is a testament to this. As such our customers can contribute significantly to their Corporate Social Responsibility (CSR) simply by engaging Haven Recycle as a supplier. Specialties WEEE Recycling, Asset Recovery, Information Security Management, Corporate Social Responsibility, Data Destruction - on & off site, CESG Approved Data Erasure - on & off site, ISO 9001 accredited, ISO 14001 accredited, SEPA Waste Management License: WML/L/1099035 . Headquarters 6 - 8 Watt Road Hillington ParkGlasgow, G52 4RY United Kingdom . Website <http://www.linkedin.com/redirect?url=http%3A%2F%2Fwww%2Ehavenrecycle%2Eco%2 Euk&urlhash=_LQh&trk=Haven+Recycle_website> http://www.havenrecycle.co.uk . Industry Renewables & Environment . Type Nonprofit . Company Size 11-50 employees . Founded 1946 _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3272 / Virus Database: 3162/6281 - Release Date: 04/28/13

13 years, 3 months

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Calling Tony Eros

by bob＠jfcl.com

Tony Eros - if you want your SBC6120, please contact me off list (or just respond to one of the other emails that I've sent you about it!). That's it. Sorry to waste bandwidth on this, but Tony appears to be a tough guy to get in touch with. Bob Armstrong

13 years, 3 months

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on the Terasic DE0 board and general FPGA advice

by keithvz＠verizon.net

I bought the Terasic DE0 a little while back. This board is pretty decent, and I've used it for a few different projects. Regarding documentation, the docs are overall pretty good. Pretty much everything you need is either available at Terasic site if it's a board-specific item, or at Altera's if it's FPGA specific. I don't think I've looked for one thing ever that simply was missing, or wrong. There was one thing I suggested they add as an FAQ, and despite the fact that they told me they would, they haven't. If you need to use pin K22, you need to look here http://quartushelp.altera.com/current/mergedProjects/comp/comp/comp_tab_dp_… and set the nCEO (or was it NCSO) pin as regular I/O. Otherwise: you'll get a multiple drivers error during compilation, even though YOU aren't driving it more than once. This is important for VGA applications and affects one of the BLUE signals. The user manual pretty much gives you everything you need http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&Category… The control panel is useful, but I think a lot of the sample apps use NIOS, and unless you are going that route, the example code isn't helpful. Quartus II (free version) is pretty decent, at least in comparison to Xilinx's ISE (that I haven't used in a couple versions). It's smaller, faster, lighter, and so on. These tools are PIGS in general, so it's all relative. Learn how to use SignalTap II, the built in the logic analyzer, and life is very good. Memory controllers are the bain of FPGA hobbyists, I made minor changes to one I found online, and it works fine on the DE0. I'd give the link, but it seems to have gone offline. I'm working on a local mirror on my site. (http://web.archive.org/web/20130123011711/http://whoyouvotefor.info/altera_…) Yes, SRAM is easier, but usually less plentiful. There aren't many other options if you want a decent amount of memory. Here's 16-channels of 5v conversion for $15 off the shelf http://www.seeedstudio.com/depot/logic-sniffer-16bit-input-buffer-wing-p-72… Here's what I created http://techtravels.org/?p=488 Works pretty decent Recommend http://www.amazon.com/Bebop-Boolean-Boogie-Third-Edition/dp/1856175073/ref=… and http://www.amazon.com/FPGA-Prototyping-Verilog-Examples-Spartan-3/dp/047018… or similar. Hope this helps, Keith

13 years, 3 months

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IBM PCs and clones: mTCP 2013-04-26 (DOS TCP/IP apps) is available

by mbbrutman-cctalk＠brutman.com

And nearly another year has passed by ... This version includes: - improved TCP/IP lost packet and retransmit support - DHCP lease expiration detection and warning - IRCjr: mIRC color codes, improved logging support, 132 column awareness, bug fixes - FTP client: user input can be longer now (2 lines), 125 responses from the server handled better - FTP server: improved compatibility with more clients. - Telnet: improved emulation (scroll regions and DEC Origin Mode support) - Many other small fixes and improvements ... Everything is available at http://code.google.com/p/mtcp/ . Mike

13 years, 3 months

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any TU58 available?

by shadoooo＠gmail.com

Hello. I have an old VAX 730 that needs to be restored, and temporaneously is stored, because of lack of space to disassemble and repair the machine. With the machine it came a box of old cassettes, that I would try to read. Furthermore, I'm working on disassembling the code of a TU58 rom, because I would try to hack the firmware to provide the ability to format an empty DC100 cassette. For this reasons, I'm searching for a TU58 drive in good/repairable condition, if anybody has one to sell for reasonable price. I'm in Italy, so europe is preferred... Andrea

13 years, 3 months

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Mosaic turns 20: Let's fire up the old girl, show her the web today • The Register

by woyciesjes＠sbcglobal.net

http://www.theregister.co.uk/2013/04/26/mosaic_20_anniversary/ -- --- Dave Woyciesjes --- ICQ# 905818 --- AIM - woyciesjes --- CompTIA A+ Certified IT Tech - http://certification.comptia.org/ --- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/ Registered Linux user number 464583 "Computers have lots of memory but no imagination." "The problem with troubleshooting is that trouble shoots back." - from some guy on the internet.

13 years, 3 months

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Don Maslin's stuff being sold

by dgriffi＠cs.csubak.edu

I have met with Don Maslin's niece and paid her for several boxes of S100 boards. I have also taken four complete machines on consignment. One of these, a Commodore PET 2001-8 with 11 tapes is for auction right now (http://www.ebay.com/itm/330910987205). I will assist Don's niece via email on photographing and packing the remaining machines (which I was unable to pack into my car) for which I will then run auctions when I get settled in Bellingham, WA. I will probably pass this effort along to someone nearer San Diego. Please contact me privately if you wish to assist in this liquidation or take over entirely. -- 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, 3 months

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[N8VEM-S100:1583] S100-68K-V3 -- A brake at last!

by LYNCHAJ＠YAHOO.COM

Thanks John! That's great news! Yay! http://s100computers.com/My%20System%20Pages/68000%20Board/68K%20CPU%20Board .htm Now that the S-100 68K CPU board is working I'd like us to consider either a PAK68/2 and/or PAK68/3 for it or a 68030 native board. Especially one that could use the top connector for the 8MB or 32 MB SRAM board. I am thinking a 68030 native board would be about the same complexity as the S-100 80386 CPU board and even share elements of the design. Thanks and have a nice day! Andrew Lynch From: John Monahan [mailto:monahan at vitasoft.org] Sent: Friday, April 26, 2013 2:00 PM To: n8vem-s100 at googlegroups.com; 'yoda' Cc: Andrew Lynch Subject: RE: [N8VEM-S100:1583] S100-68K-V3 -- A brake at last! Good news guys, finally got a brake on the 68K board. Now have it working R/W S-100 RAM (4MG Static RAM board) with a 12MHz oscillator (bus clock 6MHz). The problem is embarrassing, a poor solder joint to ground on U32! You would think by now I would have seen this earlier. Should have check more carefully before the build - I never learn. My tip-off was that an old Godbout 64K RAM board worked fine - did not require upper address lines! Feel somewhat relieved, but we are still not out of the woods. At these speeds the board does not work reliably in the extender board (but OK at lower speeds). In contrast the 8086,80286,80386 have absolutely no problem far higher speed (bus clock 10-12MHz). Timing is clearly tight. I will try and tweak things. Dave, since you are almost there, for me - P2 16-15 jumper halts everything. Does it for you? Stay tuned John

13 years, 3 months

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IBM Slides on eBay

by silent700＠gmail.com

Did anyone on the list end up the winner on this set of slides? http://www.ebay.com/itm/190828071637? If so, I am probably not alone in hoping to see these scanned and posted online someday. -- silent700.blogspot.com Retrocomputing and collecting in the Chicago area: http://chiclassiccomp.org

13 years, 3 months

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Manual Wanted for Epson Pen Plotter.

by dave.g4ugm＠gmail.com

Folks I just purchased this Epson HI-80 plotter and whilst I can find a little bit about it on the net, I can't find a manual any where. Has any one got one lurking they would be willing to copy for me? http://www.ebay.co.uk/itm/EPSON-HI-80-VINTAGE-COLOUR-PLOTTER-A4-/2612023903… Dave

13 years, 3 months

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Who is the moderator of this list?

by robert.jarratt＠ntlworld.com

I would like to discuss some aspects of the management of this list with the person who has this responsibility. Thanks Rob

13 years, 3 months

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[cctalk] Re: Hardware vs Simh (and FPGA)

by js＠cimmeri.com

> > ------------------------------------------------------------------------ > > Subject: > Re: [cctalk] Re: [cctalk] Re: Hardware vs Simh (and FPGA) > From: > Dave McGuire <mcguire at neurotica.com> > Date: > Fri, 26 Apr 2013 00:24:39 -0400 > To: > General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > > To: > General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > > > > > "OH MY GOD I HAVE TO TYPE SOMETHING TO GET FREE STUFF, HURRRR!" > > So don't go get the free stuff, then. Good heavens. Some people get WAY > too uppity about friggin' NOTHING. > > Hence: "Get over it". > > -Dave > "Some people get WAY too uppity about friggin' NOTHING." Look who's talkin', Dave. Very Frequently! Personally, I've learned a lot from all the highly intelligent answers people have given resulting from supposedly stupid questions (such as those by "MG" which I was in no position to judge), or other inane remarks. Truly inane -- especially singular -- remarks, such as you will undoubtably claim these of mine to be, can simply be ignored rather than be pontificated on in any or every single instance. - John

13 years, 3 months

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HP41 and HP12 Calculator Manuals

by shumaker＠att.net

I've seen occasional threads about the HP calculators here and there... so I suspect these original docs might be of value to someone... HP41C/41CV Owner's Handbook and Programming Guide HP41C/41CV Operating Manual - A Guide for the Experienced User HP41C Surveying Pac Manual HP12C Owners Handbook and Problem Solving Guide. acquired for a very meager sum at an estate sale so... free for shipping from 95006 steve

13 years, 3 months

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1972 Harris Semiconductor Catalog

by shumaker＠att.net

Recently acquired one at an "estate" sale for a minor sum... It's a quite musty but very readable 3 ring binder will the entire Harris semi line as of 1 Jan 1972. Including their early ICs and some app notes. I've already scanned it for my files. If anyone on the list would like this thing free for shipping from 95006, I'll pass it on. The binder has mildew and water stains and it has a very musty smell about it... but otherwise in ok shape.

13 years, 3 months

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The CoCo-X Project

by tlindner＠macmess.org

Gary Becker is running a Kickstarter project to create a CoCo 3 replacement motherboard. I'd really like to get one, but it needs more support. http://kck.st/16fAwkf -- tim lindner

13 years, 3 months

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OT: manual (was: Re: 8mm Movie to Digital Service?)

by mtapley＠swri.edu

At 10:40 -0500 4/25/13, tony wrote: >...'Manual of Sub-Standard Cinematography'... I have a sudden vision of a book containing only two words: "American television" -- - 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, 3 months

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DG Desktop Generation Manual

by mark.darvill＠mac.com

Tommie, Many thanks for the suggestion regarding the guy on ebay. Bruce has also contacted me directly off list. Mark ------------------------------ Message: 22 Date: Tue, 23 Apr 2013 17:44:23 +0200 From: Tommie Mademark<tommie at fox.se> To: "'General Discussion: On-Topic Posts Only'" <cctech at classiccmp.org> Subject: RE: DG Desktop Generation Manuals Message-ID:<40A791DCA605FE468794FC2AE63FA2041EFC827D09 at mail.fox.se> Content-Type: text/plain; charset="us-ascii" Signature emlmth1 on eBay.com has a set of 5.25 inch diskettes with AOS install for sale. The floppies are currently not listed but he had them listed a few months back for me, but I was looking for AOS/VS on diskettes, not AOS. Bruce Ray (bruce at Wild-Hare.com) might have the "Desktop Generation Model 20-30 Technical Reference" manual. Tommie Mademark My Data General bloghttp://DataGeneral.org/

13 years, 3 months

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Kaypro System disks?

by brain＠jbrain.com

I have been fortunate to acquire a Kaypro system that appears to be in great condition and looks to work. It looks exactly like this: http://www.computermuseum.li/Testpage/Kaypro-I-Micro.htm Thus, it says Kaypro 1 on the artwork Still, the sticker on the rear says Kaypro 2, so I'm confused. In any event, I have no system disks for it (There is a slight possibility they are part of the stash with which the Kaypro was bundled, but it's 100 sq ft of stuff). Thus, I'm wondering if there is a kind soul who might be able to ship me a set of disks. (I'll pay shipping, of course). I also am the proud owner of 2 Obsorne machines (one works, the other seems to have drive issues. They are the redesigned units, but (as I suspected) the systems disks won't work on the Kaypro. Jim -- Jim Brain, Brain Innovations (X) brain at jbrain.com Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! Home: http://www.jbrain.com

13 years, 3 months

10
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CMD CQD-220 ROM fixes

by fraveydank＠gmail.com

A while back, I mentioned that I'd found and potentially fixed the "bricking" problem with the CQD-220. To recap, for those that werent following, the problem lies in the code for the on-board 8086 when you set the number of both disks and tapes to zero. The 8086, during its routine to load the values from the EEPROM, loads the total number of disks and tapes and executes a loop with a counter predecrement; if the counter is loaded as 0, it effectively runs through the loop 256 times instead of 7 (the max), which spins out of control and blows away some RAM somewhere before crashing. Fortunately, through a compiler bug or some such, there are 5 bytes available from a totally redundant instruction (loading a value into a register where the same value is already loaded) in just the right place to test the total number of devices and jump to the "uninitialized device table in EEPROM" section of the routine if it is zero. With one byte to spare! (good thing NOP is only a byte in 8086) This applies to the A7A revision of the ROM, anyway; I haven't gotten to the A8 version yet, though I know it exhibits the same bug. Hopefully it also has the same redundant instruction. In any case, I should be able to find and fix it quickly once I have the time, because I know where to look. So, here's the thing; I've finally gotten the time to test the fixed ROM image (was temporarily short of 27256 chips, but that's been resolved) and I'd like to get the fixed images somewhere they'll be easy to find if anyone else runs into the same problem (this took me over a year of sporadic attention to fix). Does anyone know where I should post this? There's my own website, which is really not a thing anymore, but there are probably lots of places Google is more likely to find. Also, are there copyright implications to consider? I know CMD is long gone, but I still worry about these things. Last thing: does anyone know the difference between the A7A ROM and the A8? I've not found anything different; I assume it's probably an obscure bugfix. The images are only 64K total, so I shouldn't imagine they'll be bandwidth intensive. - Dave

13 years, 3 months

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Mac Performa 6400/200VEE

by jules.richardson99＠gmail.com

I found a Mac Performa 6400/200VEE at the dump today, but no keyboard / rodent / display. It seems to have 128MB of RAM installed, along with a video I/O board (the 'VEE' bit, I suppose) and Ethernet board. The downside is that there's some significant battery corrosion toward the bottom of the system board PCB. I'll try some vinegar and see how it goes, but obviously it doesn't make sense to source a keyboard, mouse and display from anywhere if the system's toast. 1) Is it possible to wire the 15-pin monitor connector up to a PC's VGA monitor? Or, 2) Can I hook the composite out on the video I/O board up to a TV and expect to be able to see something at boot time? (I'm not sure if that board's only initialized after the system's booted) Done with hard disk disconnected, obviously - but will the system even output anything to the display with no keyboard or mouse present? cheers Jules

13 years, 3 months

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What's this 88000 based qbus cpu about ?

by seefriek＠gmail.com

As it happens, I have one of these with manual and VMS drivers/libraries. Nothing currently to put it in, though. KJ

13 years, 4 months

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Northstar C5 Bus - Any interest or any details on what this is?

by arrowrunner＠gmail.com

A member from the vintage computer forum suggested that I post this here before throwing it in the scrap pile. I'd much rather make a couple dollars or trade and see it go to someone that might use it or need it anyway. http://s253.photobucket.com/user/arrow_runner/media/20130408_175701_zps5d7b… http://s253.photobucket.com/user/arrow_runner/media/20130408_175710_zpsb4ff…

13 years, 4 months

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8mm Movie to Digital Service?

by Arno_1983＠gmx.de

ard at p850ug1.demon.co.uk (Tony Duell) wrote: > > Stupid question but do those films (8" or 12") have sound on them > > I am puzzled by your reference to 8" and 12" here.... Probably referring to the reel size, which is of minor importance. > like a track or are they purely video slides in a row? (I've really > never seen them up close so hollywood is my only incorrect knowledge of > how it looks). > AFIAK 16mm cine film could have either an optical soundtrack or a > magnetic one. In the former case, the ausio signal modulated a light > source which produced a variable width or density track on the film. http://en.wikipedia.org/wiki/Film_soundtrack has an example of a 16mm film with variable width/area sound track. I haven't been able to quickly find a reference picture for the variable density (sometimes called "Western Electric") system, but it consists of density gradients along the sound track (think "analogue bar code"). Magnetic sound track gives itself away as a strip of brownish color (like audio cassette tape) that is laminated onto the film along one edge. Sometimes there is a second "balance" strip along the other edge so the film will spool up more evenly. > After processing this was read using a lamp and photocell, the signal > from the latter was the original audio. Or a magnetic soundtrack, an > iron oxide 'stripe' down the film which works like a tape recorder. All three systems were available for 16mm film, my Siemens System 2000 projector would be capable of playing them all back. There is a switch at the amplifier (in the projector base) to select between optical and magnetic audio and a knob on the optical reading head to select width or density modulation. > Super-8 8mm film could have a magnetic soundtrack (I have never heard of > opticla sound on such films). I have also never heard of any soundtrack > on standard 8 ('double run 8(') or single-8 film. http://en.wikipedia.org/wiki/Super_8_film#Sound has the following: "Super 8mm was also specified with an optical sound track. This occupied the same location as the magnetic track. Picture to sound separation in this format was just 16 frames. Projectors and cameras obviously could not record sound in this system, but optical sound package movies became briefly popular, particularly in Europe (mainly because they were cheaper to produce - though the projectors cost more). Although the optical sound should have been inferior in quality to magnetic sound (running at 3.6 inches per second for 24 frames per second), in practice it was often much better, largely because packaged movie magnetic sound was often poorly recorded." No mention of audio tracks in any form in the Regular-8 article however. Arno

13 years, 4 months

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Mark Crispin and PANDA

by spedraja＠ono.com

Hello. What happened with the PANDA distribution available in PANDA.COM ? The site appears to be down. Regards Sergio

13 years, 4 months

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old computer museum in WI

by sales＠elecplus.com

With his permission, I am posting this company's info. They are an electronics recycler, and he has a working computer museum. Greg H. DeVoll First Choice Computer Recycling 525 Park Ridge Court Eau Claire, WI 54703 Phone: 715-833-2005 Fax: 715-833-1944 Email: greg at firstchoicerecycling.com He has doubles, triples, and gaylords of most things. Includes old DEC, Apple, old gaming machines including Pong and Commodore, telephones very old rotary, many styles, many new in the box, old test equip, etc. Emails and calls are welcome, and tours are available. He is willing to sell old stuff, and he can test almost anything. He has 40K sq feet. He does not have a website for the museum. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3272 / Virus Database: 3162/6264 - Release Date: 04/22/13

13 years, 4 months

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8mm Movie to Digital Service?

by cfox1＠cogeco.ca

> > > Super-8 8mm film could have a magnetic soundtrack (I have never heard of > > opticla sound on such films). I have also never heard of any soundtrack > > on standard 8 ('double run 8(') or single-8 film. > >http://en.wikipedia.org/wiki/Super_8_film#Sound has the following: >"Super 8mm was also specified with an optical sound track. This occupied >the same location as the magnetic track. Picture to sound separation in >this format was just 16 frames. Projectors and cameras obviously could >not record sound in this system, but optical sound package movies became >briefly popular, particularly in Europe (mainly because they were cheaper >to produce - though the projectors cost more). Although the optical sound >should have been inferior in quality to magnetic sound (running at 3.6 >inches per second for 24 frames per second), in practice it was often much >better, largely because packaged movie magnetic sound was often poorly >recorded." > >No mention of audio tracks in any form in the Regular-8 article however. > >Arno While there was never a standard for sound on regular 8mm film,there were various attempts at it. I was recently given a Eumig P8M Imperial projector which has a sound deck on the back on which a tape from a 3 3/4 ips reel to reel recorder can be threaded to maintain "sync" with the film and start and stop the projector. The problem is that every time a quarter inch tape is run it stretches a bit and the sync doesn't last. Cheers Charlie Fox Charles E. Fox 793 Argyle Rd. Windsor Ont. 519-254-4991 N8Y3j8 www.chasfoxvideo.com

13 years, 4 months

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8mm Movie to Digital Service?

by jfoust＠threedee.com

At 07:53 AM 4/23/2013, you wrote: >Stupid question but do those films (8" or 12") have sound on them like a track or are they purely video slides in a row? (I've really never seen them up close so hollywood is my only incorrect knowledge of how it looks). Here's a close-up that shows the newer digital methods of putting audio on film, too. <http://commons.wikimedia.org/wiki/File:35mm_film_audio_macro.jpg>http://commons.wikimedia.org/wiki/File:35mm_film_audio_macro.jpg - John

13 years, 4 months

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8mm Movie to Digital Service?

by quapla＠xs4all.nl

> Stupid question but do those films (8" or 12") have sound on them like a > track or are they purely video slides in a row? (I've really never seen > them up close so hollywood is my only incorrect knowledge of how it > looks). > > I have one 8mm movie (the original starwars movie) with a single audio track next to the perforations. Running time 15 to 20 minutes if I remember correctly. Never had the opprtunity to hear the sound, as we did not have a sound capable projector. -- Dit is een HTML vrije email / This is an HTML free email. Zeg NEE tegen de 'slimme' meter.

13 years, 4 months

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Pics of new shop

by ggs＠shiresoft.com

Hi, Here's a link to the pictures of my new shop: http://www.shiresoft.com/new-shop/Shiresoft/New_Shop.html TTFN - Guy

13 years, 4 months

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Rumors of the Mainframe's death are greatly exaggerated

by steve＠tronola.com

>Date: Sun, 7 Apr 2013 10:16:33 -0700 (PDT) >From: Fred Cisin <cisin at xenosoft.com> >Ken Olsen (DEC) once said that there was only need for half a dozen. So >long as there is still need for half a dozen, then it ain't dead! --- It sounds like you are referring to the quote which is attributed to Howard Aiken (NOT Ken Olsen): "Only six electronic digital computers would be required to satisfy the computing needs of the entire United States." (Aiken was also known for such prescient positions as being religiously opposed to storing instructions and data in the same memory space.) Steve L.

13 years, 4 months

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KA655 SLU without proper bulkhead

by fraveydank＠gmail.com

Hey all, I recently acquired a KA655-AA (MicroVAX 3800/3900 CPU) and some appropriate RAM, and I'm having trouble grokking the console SLU output. If I'm reading the docs correctly (and I have to go all the way back to the KA630 docs to find the proper switch polarity), if I'm running it without a bulkhead attached at all, the serial speed should be 300 baud. When my terminal is running at 300, 8 bit, no parity, 1 stop bit, I get some garbage on screen but not much more. Am I missing something? Do I need to do some magic with the front panel ports to make it cooperate? I'm using a DB25 serial cable that I've been using on my KDF11-B CPU board with no trouble; if I look at the docs, it looks like it should be fine assuming I can let DTR float (it's unused in my cable, since it's an external clock pin on the KDF11-B). I can also see the LEDs on the spine of the CPU counting down, though I didn't watch for long enough to see if they ever got to zero. As far as I know, the memory is connected OK and works, though I assume I don't really need that if I just want to see a console prompt. I'm using a very short (~3") 50-pin SCSI ribbon cable, which I assume is OK. And it's an MS650-BA, which the KA655 manual specifically calls out, because the -AA is too slow. - Dave

13 years, 4 months

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8mm Movie to Digital Service?

by barythrin＠gmail.com

Stupid question but do those films (8" or 12") have sound on them like a track or are they purely video slides in a row? (I've really never seen them up close so hollywood is my only incorrect knowledge of how it looks).

13 years, 4 months

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DECnet MOP download file formats??

by bob＠jfcl.com

I've got a little "satellite" PDP-11/23 with just a CPU, memory , some serial ports and a BDV11 bootstrap card. One of the serial ports is connected to a bigger PDP-11 running RSX-11M+ and DECnet-11M. My goal is to use the DECnet MOP bootstrap built into the BDV11 to download a "bare metal" application from the RSX system on the bigger -11. So far, so good. After a little twiddling with the DECnet configuration I've got it so that I can trigger the BDV11 boot and the host will download the secondary and tertiary loaders to the satellite. Amazing :-) Now the problem is for me to write some application for the tertiary loader to download. Writing a PDP-11 assembly program is not an issue for me, and I've got MACRO-11 and TKB on the host system, but I don't know exactly what DECnet wants. How is the application system image supposed to be made? What's the file format that DECnet wants to download? It's probably made with TKB in some way, but what are the proper TKB options? Where (in memory) does it get loaded on the satellite? What address does it start execution at ? Is the MMU turned on? Is the I/O page mapped? Are any useful values (e.g. a pointer to a valid stack, the address of the download device CSR, etc) passed in the registers? So many questions ! Can anybody point me to documentation on this, or an example of a little program that gets downloaded via DECnet MOP? In the olden days, people probably would have generated an RSX-11S system and downloaded that, but I don't have an 11S kit so that's not an option. Thanks, Bob Armstrong

13 years, 4 months

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(US) National Software Reference Library

by jfoust＠threedee.com

A government archive of installable software: <http://blogs.loc.gov/digitalpreservation/2012/05/life-saving-the-national-s…>http://blogs.loc.gov/digitalpreservation/2012/05/life-saving-the-national-s… But I found out about it in reference to this: <http://www.reddit.com/r/sysadmin/comments/1cvgl6/powered_up_48_tb_raid_afte…>http://www.reddit.com/r/sysadmin/comments/1cvgl6/powered_up_48_tb_raid_afte… - John

13 years, 4 months

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DG Desktop Generation Manuals

by mark.darvill＠mac.com

Does anyone have any Data General Desktop Generation manuals scanned that they could send me? I am particularly looking for "Desktop Generation Model 20-30 Technical Reference" p/n 014-000767-01 but any other associated DG manuals would be grateful recieved. Also does anyone still have a 16-bit AOS distro, ideally floppy based? I am rebuilding a DG20 and would prefer to install AOS over RDOS. Thanks, Mark

13 years, 4 months

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Moving gear

by ggs＠shiresoft.com

While this is mainly for folks in the Bay Area, I'm posting this for informational purposes and if anyone happens to be in the Bay Area to help, I'd appreciate it. As many of you know, a couple of years ago I moved out of my shop and put everything into storage. It dawned on me that what I was paying in storage fees would finance a mortgage (ouch!). After a brutal 6 month search, my wife and I found a property that met all (ok almost all) of our criteria. One of the fundamental criteria (which nixed a number of houses that we liked) was that there be a "shop" on the property. This one does. The main level of the shop is 3 rooms totaling ~1000sq ft. Then there's the upstairs which is another ~400sq ft (with 6' head room) and finally the "basement" which is ~250sq ft (with 5' head room). I'll post a link to pictures once I put them up. Remember, this is the shop. The house is *spectacular* and I'll cover that if folks are interested but I'm not going into detail here since it's off topic. This is our retirement property (yes we're getting to that age unfortunately) and is about 180 miles from our current home. On the plus side, the property is almost 10 acres. I spent this past weekend moving ~150 "totes" from storage up to the new shop. I barely made a dent in my storage units. I need help in moving all of this stuff. Much of it is going up to the new place. However, there is a large quantity of stuff that I've acquired that came along for the ride as I was acquiring other stuff. Some of what will *not* be going (more will follow as I dig out more stuff): - Sun gear. I have a number of IPX's, LX's, SS2's, Ultra5's. I don't know the status of them at this point but many of them (especially the Ultra5's) are in great shape and I expect them to be fully functional. - microVAX. I have fair number of these. From pizza box styles to BA123s. - Q-bus based 11s. I have a number of these, but I didn't run across them this weekend so I can't give a complete inventory - 11/34s. I have 2-3 of these. They're pretty well stuffed. I haven't actually run these and they're still in the rack(s). Here are the rules: - I will *not* ship. I'm under serious time pressure and I have *no* time to pack and ship stuff. - I will *not* look for specific stuff. I'm basically a packing robot at this point. I'm operating on a binary decision: go or not. I'm not looking at stuff in detail, there's no time. - You come and help me move, you get to pick stuff that you want (that I'm not taking). - If you don't want to help move, you will be expected to pay a "nominal" value for the item. - If you come to help, I expect you to work. I don't have time to waste on jaw boning. - If you want stuff, I expect you to come...look, (pay), take and leave. - Tell me your availability. I'm doing this on weekends. I will *not* be doing any of this during the week. My "real" job consumes all of that time. Sorry to be a bit blunt but I'm in a bit of a rush and need to get stuff moved. Ideally, everything will be moved by 6/1. Oh, and for those of you who might ask, anything that's left will be sent to WeirdStuff. If you're interested, please contact me off-list. TTFN - Guy

13 years, 4 months

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Looking for...

by roe＠liveblockauctions.com

Anybody out there eBay tvrsales? I'd buy the disk cleaner immediately and cover shipping, but you don't seem to deal with Canadians...

13 years, 4 months

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TM100 anywhere? (Kaypro drive woes)

by brain＠jbrain.com

Anyone got a working TM100 in their spare parts box? Or, alternatively, anyone up to diagnose a dead TM100 for a fee? The K4+88 needs one. It drags the PSU down completely when plugged in, and the mech won't read a disk with a known good controller. Also, the drives in the K4 (half height, I forgot to write down the model number) run but are out of alignment. If someone is up to aligning them, I'd pay for the efforts. Jim -- Jim Brain brain at jbrain.com www.jbrain.com

13 years, 4 months

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"Don't mess with Texas's old computers" (APR 22 2013)

by lproven＠gmail.com

IBM 402 tabulator still in use today... http://kottke.org/13/04/dont-mess-with-texass-old-computers -- 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

13 years, 4 months

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Who is the moderator of this list?

by barythrin＠gmail.com

Since its already a bit off topic. I was leaving for work this morning and saw my daughters bike which has a little pouch on the front that says "peace" which today I read as "peace sridhar". I guess I should just be happy I'm not seeing "bad wolf". Although I did see that tattooed on a young lady at the local pet store.

13 years, 4 months

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Atari DRAM smuggling(?)

by geneb＠deltasoft.com

Interesting read about Atari in the 80's. http://www.atarileaks.org/ g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://www.scarletdme.org - Get it _today_!

13 years, 4 months

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Don Maslin's stuff being sold

by barythrin＠gmail.com

Kudos btw for helping the family out and with the pricing.

13 years, 4 months

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Last chance on Local Pickup machines in Flushing MI

by dm561＠torfree.net

----- Original Message ----- Date: Sun, 21 Apr 2013 01:14:49 +0000 From: "Sam O'nella" <barythrin at gmail.com> > The point of whoever posted the complaint originally was more of the lines > of "300$ or it goes to goodwill". I got the point the first time, thanks; he could also have read it as: "I need to get rid of the following items and would like $xxx; if no one is prepared to make an offer that's worth my while I'll donate them to charity." As Richard says, if you want 'em and are prepared to pick them up, make an offer; Landon's not a committed generous collector, he's a dealer with a dubious rep, and IMO the prices are actually reasonable by ebay standards. If not, move on; don't waste time bitching because you don't like Landon and his prices or Goodwill's policies, think he *should* be prepared to ship and/or break them down for parts, etc. etc. They're PCs and Macs, not Kenbaks or PDP-6s... But bitching at/about other people is what this list is largely about these days, alas...

13 years, 4 months

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Wanted: DEC VT100

by rsnodgrass＠gmail.com

Sorry, forgot to mention I'm in the Seattle area (but travel around the Pacific NW quite frequently). At 9:14 PM -0700 4/20/13, Ryan Snodgrass wrote: >I am looking for a DEC VT100, or possibly VT102, to add to my computer >collection. I spent many years early on programming on VT100/102 series >connected to VAX 11/750 and VAX 4000. I've wanted to have one as my >terminal for quite some time. Does anyone know of a nice one that is >available? Thanks. >Ryan

13 years, 4 months

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oops...subject tagging ;)

by mcguire＠neurotica.com

And of course my newly-tagged subject lines leak out when I reply. ;) Sorry about that...I will either remember to trim them, or disable my inbound subject rewriting. -Dave -- Dave McGuire, AK4HZ New Kensington, PA

13 years, 4 months

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SDSX.SYS in RT-11

by jhfinedp3k＠compsys.to

Has anyone been able to successfully use SDSX.SYS under a Mapped RT-11 Monitor? Or does it have a bug and if so, does anyone have a fix? For as long as I can remember, I have used SDX.SYS (= SDHX.SYS) to debug my programs under RT-11. Unfortunately, the SDHX.SYS variant freezes everything in RT-11 (all jobs, device drivers, monitor and even the clock) when the program is stopped at a breakpoint. Note that DEC supplies two variants of SDX.SYS which execute under Mapped RT-11 Monitors: (a) SDHX.SYS which is called HARD (b) SDSX.SYS which is called SOFT In both cases, the file of the chosen variant MUST be copied to SDX.SYS before that variant can be used. Obviously, only one variant can be used at a time. Very recently, I had the occasion to link VDT.OBJ (the ODT variant modified into VDT) into my program and I found that other jobs were no longer frozen. I hoped that SDSX.SYS => SDX.SYS might produce the same result. However, not only does SDSX.SYS not perform in that manner, but as soon as I attempt to activate other jobs (almost always, those other jobs are KED variants executing as system jobs which display the listing for the potion of the program which is being debugged) which are in an IOWAIT state (holding for keyboard input), RT-11 usually crashes immediately, especially when the breakpoint is in the RT-11 monitor. Does anyone have any experience with SDSX.SYS which is different, specifically when SDSX.SYS actually works and still allows other jobs to execute at the same time while one job is stopped at a breakpoint under SDSX.SYS and the other jobs are KED variants which are displaying a listing of the program which is being debugged. While SDHX.SYS works perfectly, since it freezes everything when the program is stopped at a breakpoint, I had hoped that SDSX.SYS would allow the other jobs to move to other portions of the listing as other portions of the code were being executed, often instruction by instruction. In case this information is helpful, the other system jobs which are executing KED variants have opened the listing file in READ ONLY / INSPECT mode, and no other file requests are being executed. I had somehow hoped that if VDT could execute correctly but still allow other jobs to continue, that SDSX.SYS might also allow that as well. Can anyone help or at least comment? Am I doing anything wrong? Is there a bug in SDSX.SYS which no one else has found? While I am using a Mapped Monitor which has Multi-Terminal support, the same problem is present when the DEC distributed monitor, RT11XM.SYS without Multi-Terminal support is used. While <CTRL/X> must be used with the same terminal to re-activate a system job, when SDSX.SYS is used, the same problem occurs. So does SDSX.SYS have a bug and if so, does anyone have a fix? Jerome Fine

13 years, 4 months

1
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floppies

by fjkraan＠xs4all.nl

On 2013-04-19 19:00, dwight elvey <dkelvey at hotmail.com> wrote: > > For the 16 hole punches, I'm asking $35 plus postage.Dwight I might be interested in an unpunch. Fred Jan

13 years, 4 months

3
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Wanted: DEC VT100

by ethan.dicks＠gmail.com

On Sun, Apr 21, 2013 at 12:21 AM, Zane H. Healy <healyzh at aracnet.com> wrote: > You might wish to include the general area you'd be able to collect one > from. Indeed. I have multiple terminals in central Ohio. Given enough time to organize, I can even deliver to various classic-computer events (since shipping is kind of a big deal with terminals). -ethan

13 years, 4 months

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Wanted: DEC VT100

by rsnodgrass＠gmail.com

I am looking for a DEC VT100, or possibly VT102, to add to my computer collection. I spent many years early on programming on VT100/102 series connected to VAX 11/750 and VAX 4000. I've wanted to have one as my terminal for quite some time. Does anyone know of a nice one that is available? Thanks. Ryan

13 years, 4 months

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Public mainframe system

by fraveydank＠gmail.com

Not to reignite a somewhat sensitive topic, but if anyone was interested (like I was) in a publicly-accessible modern(ish) IBM mainframe system, the FanDeZhi system at zos.efglobe.com seems to be back up. You can acquire a free account here: http://zos.efglobe.com/cgi-bin/mainframe/mainuser?F=APPLY I logged in today and quickly discovered I have no idea what to do. Time to read up... - Dave

13 years, 4 months

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Last chance on Local Pickup machines in Flushing MI

by dm561＠torfree.net

----- Original Message ----- Date: Sat, 20 Apr 2013 03:46:50 -0400 (EDT) From: Mouse <mouse at Rodents-Montreal.ORG> ["MikeS" <dm561 at torfree.net>] >> I happen to think that I not only have a legal right to choose what to do >> with what most people would consider worthless junk, but that it's really >> none of your business. > Indeed. Until and unless you make it our business, such as by posting on > the list about it. Like I said, I've learned my lesson; since offering something for sale here before it is scrapped is not appreciated and instead earns the censure of folks like you who on principle won't buy it from me anyway, I'll avoid offending you and simply offer it elsewhere and/or scrap it *without* offering it first. > Unless you are also Steven Landon (and maybe even then - see below), or > unless you've pulled such a stunt in the past and I've lost track of it, I > don't see why _you_ are getting bent out of shape over this. I have no love or respect for Landon whatsoever but I can see myself saying exactly the same thing, i.e. "I've got to get rid of some stuff and if I can't sell it by YY/MM/DD then I'm going to give it to Goodwill" (where you could presumably pick it up anyway if you're in a position to pick up in the first place); thus, the critical replies and comments could just as well be directed at me, which is why I stuck my nose in. If I give it to Goodwill or scrap it I never have to think about it again; no waiting for folks to show up who never do, no endless email exchanges, no listening to their complaints, no seeing it on eBay for $100 the next day, etc. etc. and I think I'm entitled to choose whether to put up with those hassles without any compensation. If you think that making my choice clear is emotional blackmail, then so be it. > ...the response from someone who actually cares about the hobby instead of > about yanking others' emotional chains would have been more along the > lines of "oh $#!+, is that what they do? Then...", or perhaps "actually, > I asked them and the real policy here is...". I guess I accepted a long time ago that millions of tons of useful and valuable stuff gets buried, crushed or melted down every day and I don't get as emotional about it as you think I should; if I think it should be saved and am in a position to do so, I will; what other people choose to do is up to them. Sorry if I'm not caring enough about the fate of old computers, or sensitive and considerate enough of your feelings... As I just replied to someone off-list, I find it sad and a little depressing to see the animosity, *judgements* and personal attacks so prevalent on this list, which is after all intended to bring fellow members of a community together to share knowledge, experience etc. and in general help each other...

13 years, 4 months

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Mylex MAE486-33 BIOS needed

by teoz＠neo.rr.com

I won an old 486 EISA motherboard on ebay missing a few chips most importantly is the BIOS. Mylex MAE486-33 Rev P2, anyone have the BIOS file for it? Manual says: l Verify that the BIOS chip is a 28-pin, 27512 chip, with a 200 ns access time. W For the MAE486 - verify that the BIOS chip is marked "EISA BIOS 486 MAE rev xx" I found the bios for the MBE486 online but that's a different board. And I did find the EISA config files. I think it is missing the keyboard controller, and 2 Dallas RTC chips as well (have one of them at least). Working EISA 486 are getting hard to find. Thanks TZ

13 years, 4 months

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Collection reduction - PDP 11/45

by jim＠g1jbg.co.uk

Hi all, I'm going to get rid of my PDP11/45. The processor is complete, and has solid state memory (non-DEC), and has power supplies. There is also an RK11 backplane in the processor box (may have some spare cards somewhere). The machine has not been powered for 5 years, and will need the power supplies looking at. There is also a unibus expansion box, with power supply (no cards / options fitted), and an untested RK05 drive. This is all in an original DEC cabinet with side panels and rear door. The machine is to be collected from Southampton, UK. I am open to reasonable offers (I know roughly what I want, but I'll see if I have the value about right!). Thanks Jim.

13 years, 4 months

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Was someone on here expressing interest in a Mac LC475?

by lproven＠gmail.com

I was emailing with someone recently -- as in the last few weeks -- who was interested in one for the cost of postage from the UK. However, foolishly, I have lost the email thread. (I have 22,512 threads in my inbox.) If you're interested, do please drop me an email. I've dug the machine out to check it boots, and I have found a suitable (well, slightly overlarge) box. -- 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

13 years, 4 months

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Waste Management (the company) and vintage computers...

by jules.richardson99＠gmail.com

Anyone had any dealings with them in this regard? I expect that they run a lot of local landfill sites (at least here in the US, but I think they're a global company). I've got a contact at my local one who tries to set aside for me anything that they think I might find interesting, but management policy is that nothing can leave the site once dropped off, and it sounds like this rule will be more strictly enforced in a couple of weeks' time following a site audit. I was considering contacting their management to see if there's any way to officially secure vintage items, and was wondering if anyone else has done this successfully? (In particular, it would be nice to know ahead of time what their main concerns are - if it's a liability issue, say, or if they perhaps see monetary value in e-waste) cheers Jules

13 years, 4 months

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Available S-100 PCBs

by LYNCHAJ＠YAHOO.COM

Hi If you sent a PayPal for one of the S-100 PCBs and have *NOT* received an email confirming I've shipped your boards or the boards themselves PLEASE CONTACT ME IMMEDIATELY! There has been an instance of a PayPal email either not arriving or getting lost. I don't know if this is a "one time" deal or part of a larger problem. Maybe its related to the general confusion and nuttiness happening in the US over the last few days. Whatever the problem is I need to know right away. If you've paid for a PCB, it will be shipped or you'll get a refund. No exceptions! Thanks and have a nice day! Andrew Lynch > -----Original Message----- > From: Andrew Lynch [mailto:LYNCHAJ at YAHOO.COM] > Sent: Thursday, April 18, 2013 8:31 PM > To: n8vem-s100 at googlegroups.com > Cc: cctalk at classiccmp.org > Subject: Available S-100 PCBs > > Hi, an update on available S-100 board PCBs > > Good news!? There are several new and reordered S-100 PCBs available! > > The S-100 68K CPU boards finally came in so there are about 5 available. > > There are 25 of the S-100 IDE V2 reorder PCBs and 6 of the new S-100 bus > terminator/prototyping board PCBs. > > There are 4 of the S-100 LAVA PCBs available. > > http://s100computers.com/My%20System%20Pages/68000%20Board/68K%2 > 0CPU%20Board.htm > > http://s100computers.com/My%20System%20Pages/IDE%20Board/My%20I > DE%20Card.htm > > http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=S- > 100%20bus%20terminator > > http://s100computers.com/My%20System%20Pages/Lava- > 10%20Board/LAVA-10%20Board.htm > > The S-100 PCBs cost the same as before ($20 each).? However due to > unforeseen extreme price increases in shipping by USPS I am forced to > change shipping costs. > > Shipping in the US will be $3 for a single PCB and $2 for each additional > PCB.? Shipping internationally will be $10 for a single PCB and $3 for each > additional PCB.? This is for the bare basics USPS first class postage with no > tracking or insurance.? The builder assumes all risk of delivery as per usual > arrangement. > > I apologize for the large price increase on shipping but this is out of my > hands.? The USPS is in dire financial trouble and is raising prices on shipping.? It > affects us all and is most unfortunate.? These boards are provided "at cost" so > there is no margin to absorb any shipping price increases.? I have to pass > them along. > > If you would like one or more S-100 PCBs please send a PayPal to > LYNCHAJ at YAHOO.COM > > Thanks and have a nice day! > > Andrew Lynch > > PS, if you would like to help out this all-volunteer project please get one or > more of the S-100 LAVA PCBs. These PCBs are the oldest ones and them > sitting around on a shelf does no one any good. I?d like these to go to a > hobbyist who would get some enjoyment from these fun to build and use > boards. Thanks in advance. I truly appreciate everyone's support in moving > these remaining boards. You make this hobbyist home brew project > possible.

13 years, 4 months

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The ten SEXIEST computers of ALL TIME * The Register

by oltmansg＠gmail.com

There's some questionable choices on there... The Sinclair entries... and the biggest of all... PS3? It's not even a proper computer. On Tue, Apr 9, 2013 at 2:13 PM, Zane H. Healy <healyzh at aracnet.com> wrote: > At 8:31 PM +0200 4/9/13, MG wrote: > >> The Cray is the only one I marginally agree with, but the paupers >> didn't even mention /one/ SGI. How the hell is that possible? >> Even their saint Steve Jobs spoke well of SGI, very well actually. >> > > Who remembers SGI? When I wrote my previous email, even I forgot them. :-( > > The Octane, O2, and Tezro should all be on the list! :-) Maybe Sun's > SunBlade 1000 as well. > > Zane > > > > > -- > | Zane H. Healy | UNIX Systems Administrator | > | healyzh at aracnet.com | OpenVMS Enthusiast | > | | Photographer | > +-----------------------------**-----+------------------------**----+ > | My flickr Photostream | > | http://www.flickr.com/photos/**33848088 at N03/<http://www.flickr.com/photos/33848088 at N03/> | > | My Photography Website | > | http://www.zanesphotography.**com<http://www.zanesphotography.com> | > >

13 years, 4 months

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8mm Movie to Digital Service? (was: Re: Computing the old way - Is it a thing of the past?)

by bobvines00＠gmail.com

> Date: Tue, 16 Apr 2013 05:59:23 -0500 > From: John Foust <jfoust at threedee.com> > To: <cctech at classiccmp.org> > Subject: Re: Computing the old way - Is it a thing of the past? > Some processes are better today. I recently had some old (1940s to '70s) > 8 mm family movies scanned digitally. > > The service cleans the film and uses a wet-gate process to reduce scratches. > They scan each frame digitally at HD resolution (1920 x 1080) using > even LED illumination. They scan the entire film edge-to-edge. Many > old cameras exposed the entire width of the film while the projector > only showed the majority of the middle, so you see more image than > ever before. I asked for a digital movie file for editing, so I sent > them a hard drive. The results are astoundingly dramatically better > from what you got from an old projector. No playback jitter > from worn sprocket holes. Bright, even illumination. > > It's far better than the film-to-VHS transfer I paid for in the early 90s. > (Private YouTube example links available on request.) All this for a > dime or two per foot. I'll be able to edit digitally and provide > family members with DVD or Bluray copies. > > The same is true for restoration and duplication of old family > photographs. With a digital process, you can undo damage and > easily multiply copies. > > As with the classic computer avocation, it can come with regrets, too. > I wish I would've rescued 1930s family films from a distant cousin > who passed away a decade ago. I had a VHS copy of some of his films, > but not the originals. > > - John John, Which "film to digital" service did you use? I have a box of 8mm family videos taken in the '60s-'70s that I would really like to save. It sounds like you are very happy with the results. Please contact me offline if you don't want to publically advertise the service. Thanks, Bob

13 years, 4 months

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MIT Flea

by wdonzelli＠gmail.com

For the people on this list that attend the MIT Flea: This Sunday's show has been cancelled. -- Will

13 years, 4 months

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DEC M7522 card (RUX50: RX50 for Unibus)

by pbirkel＠gmail.com

All; I've made a bit of progress in my quest, having serendipitously acquired a DEC M7522 card (RUX50: RX50 for Unibus) as part of a pile-of-parts. It has two obvious problems. 1. A 0.6"-wide 40-pin socketed DIP that is top-center on the board has been trashed (literally, the top scraped off and the die exposed!). (The socketed 82S105 just below it mid-board is just fine.) The ruined chip appears to be a CPU; what is it really? Maybe a T-11? (The FD1796 is somewhat to its right -- midway to the Berg connector, soldered-down, and looks just fine!) 2. A pair of 0.6"-wide 28-pin socketed (presumed) EPROMs (mid-left on the board, next to a pair of HM6264P-15) are missing. What are/were these (type, speed)? The board otherwise looks absolutely perfect, excepting damage to some of the handles. I'm still having no luck finding any documentation for this board; a printset is especially desired. I throw myself onto the good graces of the community to examine that M7522 card that you have in your system (or on your shelf) in order to verify what the apparent-CPU is/was, the EPROM-type/speed (2764? 150ns?), and to either point me to a copy of the EPROM contents for the chip-pair or graciously offer to extract a copy of yours :->. I'd be happy to send some blanks if you have the means to make copies. A quality scan of an intact board would be a helpful start on the chips. Thank you, very much! paul

13 years, 4 months

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Last chance on Local Pickup machines in Flushing MI

by dm561＠torfree.net

----- Original Message ----- Date: Fri, 19 Apr 2013 22:12:07 -0400 (EDT) From: Mouse <mouse at Rodents-Montreal.ORG> >> If someone owns something, then it is theirs to dispose of in any way >> they wish. That is what private property is all about. > Legally, yes. But there is a large difference between "legal" and "good", > or even "legal" and "not scummy". Just because someone has a legal right > to do something doesn't mean that doing it it shouldn't draw censure. ... > I will think less of such a person and quite likely refuse to sell to, > help on the lists, buy from, etc, said person... I happen to think that I not only have a legal right to choose what to do with what most people would consider worthless junk, but that it's really none of your business. But your censure doesn't bother me one bit, and your turning a *Goodwill donation* of fairly common junk into 'dissecting an ASR33 into party favors' just tells me something about trying to discuss something with you... I used to think that when I get rid of something people would appreciate a heads-up before I scrap it, but knowing that you and perhaps others will on principle "refuse to ...buy from" me (thereby *increasing* the likelihood that it'll end up as scrap) and not wanting to get your (and others') underwear in a knot, I just don't bother any more to offer things that have a poor chance of selling before I scrap them (as I have done with dozens of large/heavy systems including several Cromemcos, VG, etc.). >> If you think that such things are precious and need to be protected, > If you don't, what are you on this list for? Considering the OT and childish/judgemental/argumentative/insulting crap that I have to wade through these days I've been asking myself that very question more and more lately... I dunno, I thought perhaps someone might be able to use a part from those systems I've scrapped, or maybe some of the obscure software filling my shelves, or even some useful knowledge from my 40+ years in the field, but no, I don't think that any of the systems in question are particularly precious or rare nor do they need to be "protected"; there are lots of IBM 5150s out there including three rusting in my basement. Some people just want to own them and get upset because they can't for whatever reason... >> then do something about it. Buy them yourself. [...] Anything. >> Just don't go bitching to the mailing list and then expect someone else >> to do it for you. I agree completely; instead of bitching, appreciate that it's being offered at all instead of going straight to Goodwill/scrap/the dump! If you want it then buy it; if you don't and no one else wants it either then it's obviously not worth very much... m

13 years, 4 months

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Last chance on Local Pickup machines in Flushing MI

by dm561＠torfree.net

----- Original Message ----- Date: Fri, 19 Apr 2013 21:20:30 -0500 (CDT) From: Tothwolf <tothwolf at concentric.net> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Last chance on Local Pickup machines in Flushing MI On Fri, 19 Apr 2013, Richard wrote: > Tothwolf <tothwolf at concentric.net> writes: > >>> [Since others won't know why Richard made this remark, > >> Apparently even you don't know why I made this remark. I make this >> remark now because you said the above, on the 19th of April. >> The rest of your message I'm not going to respond to because it has >> nothing to do with my my remark quoted above. > Well folks, I've tried to resolve this with Richard both on and off-list since September of last year, and given the response above I guess any further attempts would be a waste of time. You're right; despite Richard's attempts to explain you seem unable to grasp that this is not about you or any imagined or real exchanges last year, so it would presumably indeed be a waste of time. I happen to agree completely with what Richard said and was about to say so myself when I read his post, and I don't recall any discussion with you last September or any other time for that matter... m

13 years, 4 months

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RX11/12 available in Canberra

by doug＠dougswordclock.com

Hi cctalk list! I was wondering if there is anybody in either Canberra or Sydney Australia who has some old DEC hardware that is in need of a new home. I have a PDP11/34 system that would love a RX11 or RX12, so I was looking for a set of drives and a M7846 board for them to plug into. I have a Dick Smith System 80 that I would happily swap :-) -- Doug Jackson DougsWordClocks 35 Fred Lane Crescent, Gordon, ACT, 2906 Australia http://www.dougswordclock.com/

13 years, 4 months

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DEC BA350 etc and RZxx-xx drives

by useddec＠gmail.com

I have about 25 BA350 style enclosures, BA35x power supplies, and RZ24,25,26, 28,29,40, etc. Some are in canisters, some are bare drives. I'm trying to clear a path and it's all in my way. Take one or all. shipping from IL, 61853. Please contact me off list Thanks, Paul

13 years, 4 months

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Floppy drives

by useddec＠gmail.com

More stuff in the way: 5 epson SD-680L sysgen sticker on front 1 teac FD-55EV-12-v 3 teac FD-55 GFR 1 panasonic 455 5 455-7aag 1 475-3A10 take one or all. shipping from IL, 61853. please contact me off list Thanks, Paul

13 years, 4 months

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subject tagging, was Re: Who is the moderator of this list?

by barythrin＠gmail.com

In fairness a lot of times its a nondefault but mailing list per user configurable option. I think it isn't perhaps on this server or software but that would be one method of satisfying most. Its not a problem on a real computer or mail client worth a grain of salt however I'm often mobile and also can't view subfolders easily from this crapberry so having a subject line but keeping it in my main inbox would also benefit my ability to keep track of mailing lists and topics. Its also the reason I can't modify the original mail text I'm replying to half the time.

13 years, 4 months

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