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

by frustum＠pacbell.net

The Bondwell Model 2 laptop computer came out in 1985, running CP/M, had an internal 3.5" floppy, and was capable of 640x200 bitmapped graphics. There isn't much of substance on the web about it and the bits that are there are cast far afield, so I've spent an evening collecting the odds and ends together, added my own stuff, and produced this web site: http://www.thebattles.net/bondwell/bondwell.html I don't plan on expanding it too much more. If somebody contributes something for the web page I'll add on to it. Mostly it is a very elaborate bookmark for my own use. :-)

21 years

2
2
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Metier Artemis 4200?

by julesrichardsonuk＠yahoo.co.uk

Anyone know anything about these critters? From what I've gleaned from the web the hardware's just rebadged HP kit, and the software's all related to project management (personal yawn!). Just wondered if there was anything oddball about the hardware that makes it particularly worth saving... cheers Jules

21 years

3
2
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Implementations of Unix on micros

by vcf＠siconic.com

Not sure if this has been posted before, but still somewhat useful as a research/curio record: http://www.robotwisdom.com/linux/nonnix.html -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years

5
11
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Altair serial port update

by rcini＠optonline.net

All: Word to the wise -- always check the cabling. I've been wracking my brain this week on the serial port problems with my Altair. I wired the serial board cable per the manual but I never checked if it was NULL or not. Well, when I put a null adapter on the cable, it worked! Whoo, hoo. So with the board configured as an Altair Revision 1 SIO board (ports 0/1), I toggled in the standard tape loader set for 8k BASIC. I used Terra Term Pro to send the file at 1200 baud. I saw the data echoed to the screen but no joy. I never get the "MEMORY SIZE?" prompt, even after fiddling with the sense switches. I hate to be a pest, but is there something I'm missing? Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

21 years

3
4
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ns32332 (was: Whitechapel CG-200)

by ken＠seefried.com

>The chip's a 32332 - google suggests that's a second generation 32032 >CPU, although it's not a part number I've come across before (we've got >some Natsemi databooks at BP; I'll have to see if it's listed) Did you ever get the info you needed about the ns32332? I've come across the datasheet for this chip and can scan it if you still need it. Ken

21 years

1
0
0 0

Used laptop stampede

by RMeenaks＠OLF.COM

and a woman urinated on herself so that she wouldn't give up her spot!!! Ram > -----Original Message----- > From: Tony Eros [mailto:tony.eros at machm.org] > Sent: Tuesday, August 16, 2005 4:46 PM > To: 'General Discussion: On-Topic and Off-Topic Posts' > Subject: Used laptop stampede > > > Apparently, the iBook sale in Virginia turned out to be a > real Donnybrook. Folks lined up at 1:30 am, and there was a > stampede when the doors finally opened. > > http://www.msnbc.msn.com/id/8973616/ > > -- Tony > > -----Original Message----- > From: cctalk-bounces at classiccmp.org > [mailto:cctalk-bounces at classiccmp.org] > On Behalf Of Dwight K. Elvey > Sent: Tuesday, August 16, 2005 2:15 PM > To: cctalk at classiccmp.org > Subject: SPAM-LOW: Re: drive repair tips? > > >From: "Sridhar Ayengar" <ploopster at gmail.com> > > > >der Mouse wrote: > >> I have a disk drive - a (relatively) modern sealed unit - which > >> appears to have mechanical trouble. The noise it makes > spinning up > >> says to my ear "bearing friction". > >> > >> I'm considering taking it apart and lubing the bearing. > Of course, > >> this would at best be a temporary fix, since it is on its > way out at > >> this point; this is more to gain experience on a throwaway device > >> than to actually recover the drive. (All the bits from it > are safe; > >> live mirroring is great for that.) > >> > >> Any tips from the collective wisdom? Obviously, I want to > do this in > >> as close to a cleanroom as I can reasonably find, and have the > >> platter assembly open as short a time as I can. But I don't, for > >> example, have any idea what would be a suitable lubricant to use - > >> assuming the bearing isn't a totally sealed assembly itself.... > >> > >> ObOTness thread: the disk itself may be formally on-topic; it's > >> certainly close to - it is stamped "MAR 31 1996". > > > >I've done it before, but I find it's not usually worth it, unless you > >can't access data on the drive, and you really need that > data. I'd say > >if that drive is still working, find an identical drive and > dd the data > >over. > > > >The drive is nowhere near as valuable as the data, at least > for newish > >drives. > > > >Peace... Sridhar > > > > Hi > It sounds like a fun project. Don't expect to get good > results but consider it as an experiment in how to analyze a > drive failure. One problem you may find is that in order to > get to the bearing, you'll need to unmount the disk platters. > It will be almost impossible to get these mounted in the same > concentric location as they came out from. Also, note that > rotating the disk surface, even a little backwards while the > heads are in contact will most likely destroy the surface. > One last thing is that you may need to make some special > spanners to undo some of the fasteners. You can make a clean > work area by getting some plastic sheeting, a small blower > and a HEPA filter from a vacuum cleaner. Wipe the inside and > the outside of the plastic sheet with a 10:1 diluted mixture > of liquid dish soap and water. Let this dry. This stops most > all of the static that would hold or transfer dust on the > plastic sheet. Try to get some clear plastic so you can see > but a small piece of glass should work. The bearing will be > sealed but if you can access it from the motor side, you can > get some lubricant by lifting the seal. Remember, you can't > rotate the disk while the heads are on the surface. You'll > need to make a comb like tool to lift them off while banging > and digging on things. Hope this doesn't scare you. I do > wish to hear what results you have. Also any observations you > have while disassembling. The brand and type of drive are > also of interest here. Dwight > > > > >

21 years

1
0
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Intel Multibus Boards Available

by ken＠onticdata.com

Pat: If any of that multibus equipment includes any iSBX daughtcards, I'd sure be interested in those. Best regards, Ken

21 years

1
0
0 0

cctech Digest, Vol 24, Issue 27

by dm561＠torfree.net

--------------------Original Message: From: "phillipmilks at netzero.com" <phillipmilks at netzero.com> Subject: Re: Heath ET-3400 Trainer Simulator SW Sometime back, a company offered simulaton SW for the ET-3400 at this site : http://www.pilgrimworks.com/trainer.htm. It has been discontinued. I would like to find a copy of the program and docs. If anyone has a copy that they would part with or copy, please respond. TIA ---------------------Reply: Can't help with the simulator, but if anyone wants a manual for the ET-3400 (with the poster-size schematic) for $5 &S, write me off-line. mike

21 years

1
0
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drive repair tips?

by marvin＠rain.org

I used to work with some engineers when they were designing the DMA Systems removeable HD. When I saw a HD being run on the bench without the cover, I asked about the clean room. The answer was that for what they were doing, the disk would run fine but they did not smoke around the drives nor stir up copius amounts of dust. Being the curious type, I took a drive cover off and ran it for at least a week or so without problems in a somewhat unclean environment. I *think* putting the cover back on would move the air through the internal filter and clean things up again. No idea on the bearing lubricant; most of the bearings I've seen were sealed. Something in the back of my mind says that removing the platters will disturb the relationship of the platters and may result in having to do a low level format. Others here (hopefully) have more and better information about this. > From: der Mouse <mouse at Rodents.Montreal.QC.CA> > Any tips from the collective wisdom? Obviously, I want to do this in > as close to a cleanroom as I can reasonably find, and have the platter > assembly open as short a time as I can. But I don't, for example, have > any idea what would be a suitable lubricant to use - assuming the > bearing isn't a totally sealed assembly itself....

21 years

1
0
0 0

VCF Suggestions (film vs. digital cameras)

by vp＠cs.drexel.edu

Bj?rn Vermo <bv at norbionics.com> wrote: > The equivalent photodetector to match high-resolution film will then be > 9600x14400, giving us 138240000 or for short 138 megapixels. are these real megapixels or the bogo-pixels used by digital camera manufacturers; they count each colour separately so that a 3megapixel camera actually has 1 megapixel of blue, 1 megapixel or red and 1 megapixel of green sensor elements. They output 3 megapixel files by extrapolation.

21 years

2
1
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Kenbak-1 on Ebay

by lsprung＠optonline.net

I usually just listen in to the folks on this list, but I was curious why there has been no mention here of the Kenbak-1 that's been on ebay all week? I know I bid on it, but once it exceeded $5k, it got difficult to comprehend the price. Only 40 made, if it was a rare coin or stamp, it would be worth tens of thousands I guess. Thanks.

21 years

11
19
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Rephrasing Analog Modem Question

by dm561＠torfree.net

------------Original Message(s): Date: Tue, 2 Aug 2005 20:57:16 +0200 From: Jochen Kunz <jkunz at unixag-kl.fh-kl.de> Subject: Re: Rephrasing Analog Modem Question On Tue, 2 Aug 2005 10:34:17 -0500 "Pete Bartusek" <pbmain at wideopenwest.com> wrote: > With the reverse telnet concept, that would work if I could change my > computer's modem pool to external serial devices (get rid of the > analog). I can't do that yet.. Get a terminal server with "reverse telnet" capability that rises DTR on the serial port if someone telnets to the corresponding TCP port. [1] Get modems with "dial on DTR" function and connect them to the serial ports of the terminal server. E.g. my old US Robotics Courier can do this. Get an old analog PBX. Connect your BBS system and the modems hanging >from the terminal server to it. Programm terminal server and modems, setup PBX. Done. If someone opens a telnet session to a port of the terminal server the modem "dial out" is triggered by the DTR signal. The modem dials the number stored in its NVRAM. The PBX connects the modem to a line of your BBS system. The BBS systems gets an incomming call... CONNECT! :-) [1] My terminal server does this. I use the DTR signals to control solid state relais. That way I can remote power cycle the machine thats console is connected to the corresponding serial port. ------------------Reply: Re [1]: What a neat idea! Back in the days when I was actually using my Cromemco systems, I did the same thing in order to work on several Cromemcos (and a PC controlling & monitoring the heating system) in the basement from the PC on my desk upstairs; however, I used the remote PC to turn power to the Cromemcos on and off (and I used _REAL_ relays :), never thought of using DTR. Mind you, I also used remote reset quite often; thoughtful of Cromemco to provide a phone jack on the back panel for that purpose. But wouldn't DTR get dropped when you select another system and shut down the previous one, or do you only have one running at a time? BTW, Howard Harte apparently has a Cromemco System1 set up to be powered up and accessed via the Internet, but I've never gotten his to come up; has anybody here ever tried it and succeeded? mike

21 years

2
1
0 0

Bliss was Re: DEC program listing

by dwight.elvey＠amd.com

>From: "Vintage Computer Festival" <vcf at siconic.com> > >I fail to see how i = i + 1 is not obvious to only but the most >simple-minded of people :) > Hi Sellam I don't see what is obvious about it. When doing math in school, I always wrote i + 1 = i, which I new was false unless i happened to be infinity. Things like i + 1 =: i or i + 1 -> i make much more sense. This typical high level language format makes reading code confusing. Sometimes one reads left to right for operations while others, one has to look to the right to find the sequence and then look to the left to complete. In this simple example, there is little chance of errors but those times I've debugged errors in others code, it has often been the order of execution that somehow got messed up. Most Forth's have the concept of a VALUE that can be used as a variable. Still, = is a question not an operation. All action progresses left to right, top to bottom. Reading code for an experienced person, when good names for words are chosen, is like reading instructions for how to complete the action. I know of one case that an upper management person sent code back to the programmer and said that he must have made a mistake. It looked like he'd sent the specification for the code and not the actual program. You know you are doing the right thing with this kind of compliment. I doubt one would ever see that happen when coding in C. Dwight

21 years

5
9
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VCF suggestions...

by ajp166＠bellatlantic.net

> >Subject: Re: VCF suggestions... > From: Brad Parker <brad at heeltoe.com> > Date: Tue, 16 Aug 2005 07:51:30 -0400 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > > >Gordon JC Pearce wrote: >>WTF? I posted this nearly two weeks ago! > >I got a huge spat of old messages last night. I checked the headers and >they seemed to be sent yesterday so I assumed it was some sort of server >problem. > >-brad Ok, So it wasn't only me. Seems from time to time I get very bursty traffic. Allison

21 years

1
0
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VCF Midwest update?

by pat＠computer-refuge.org

To be clear, Hans and a few others said that of the event, and I was just trying to point out how successful it was for a first time event. Despite the 'small' number of exhibitors, we did fill up 21 tables and could have expanded that by at least another 4-5. Also, since we collected donations instead of charging admission, there were probably a dozen or two people beyond that 70. :) Pat Pat -- Purdue University Research Computing - http://www.rcac.purdue.edu The Computer Refuge - http://www.computer-refuge.org -----Original Message----- From: Patrick Finnegan <pat at computer-refuge.org> Date: Sunday, Jul 31, 2005 1:04 pm Subject: Re: VCF Midwest update? On Sunday 31 July 2005 00:16, 'Computer Collector Newsletter' wrote: Would love to hear from anyone who attended today -- how'd it go? Everyone I talked to seemed to think it went fantastically, especially for a first time event. We ended up with 12 exhibitors (including 1 that showed up at the event with no warning), and all 8 vendor and consignment tables will filled up. The estimated head count for the exhibits was about 70 (paid) people, which was a little less than expected, but still a pretty good turnout. I think we had a slightly smaller turnout (~50) for the speakers. >From what I've been told, it was a better turnout than either of the VCF/Easts. ;) Pat -- Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/ The Computer Refuge --- http://computer-refuge.org

21 years

33
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volunteers wanted for list help :)

by GOOI＠oce.nl

Oops, meant to be private mail ... - Henk, PA8PDP

21 years

1
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volunteers wanted for list help :)

by GOOI＠oce.nl

> I'd like to solicit volunteers to help with gating posts from > cctalk to cctech. Ideally, people in a drastically different > time zone than central US :) What would you consider drastically? I am in The Netherlands you knew that ;-) and with NY the time difference is 6 hours, with LA is 9 hours ... > Gating posts takes about 5-15 minutes per day, all depends on > how many people are doing it. You basically log in to a website > for cctech and click on "accept" if the post is 100% on-topic, > or reject if it's not. You then log in to a website for cctalk > and click "accept" if it's ok (non-list member post) or "reject" > if its one of the few spam that makes it by the filters. Ok, a few questions. When is a post on-topic? Is it just the "10-year" rule, or ...? Do you have some minimalist guide lines? > When this is done consistently, the list runs smooth and it's > very quick & easy to do. When it's not run consistently, it can > become a royal pain and consume a lot of time. I can not promise that I can do this every evening (or at work over the day perhaps a few times), but I am indeed most of my evenings at home, seldom on holiday, etc. > I - and the people on cctech, would greatly appreciate it if > a reliable individual with 5 to 15 minutes per day to spare can > help out! I can do that, *if* - nobody gets angry when I move a post to the wrong list (misunderstood contents, "guideline" interpreted different) - I am allowed to miss out 2 or 3 times per month (not expecting that, but you never know what can happen) - get clear instructions what I must do, how, etc. - Henk, PA8PDP The Netherlands

21 years

1
0
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JetDirect EX print server

by cb＠mythtech.net

>Did you get any manual for the printer server j2382. ? >I have 2 unit and can't get them to recive a ip in the bootp procedure at >start up. >Mybe I have to bye some new one. :-( I assume this was aimed at me, although if it is, it is from a very old thread. No, I never located a manual. I was able to get it to take an address over bootp eventually. My problem turned out to be my bootp server was sucky. Bootp was apparently tacked onto my DHCP server as an afterthought and it just didn't work well. When I moved to a different BootP server, the problems went away. (I ended up using the BootP portion of MS Win2k Server's DHCP server). Possibly you have the same problem. Maybe it wasn't so much my BootP server was bad, as the JetDirect is overly picky. So maybe it is just incompatible with your BootP server as well (I too had two of them doing the same thing before I tried changing my BootP server). -chris <http://www.mythtech.net>

21 years

1
0
0 0

Motorola 6800D2

by ajp166＠bellatlantic.net

This is aimed at whom? Allison > >Subject: Motorola 6800D2 > From: "Chuck Patten" <chuck.patten at verizon.net> > Date: Wed, 10 Aug 2005 22:05:00 -0700 > To: <cctalk at classiccmp.org> > >Noticed you had collected one from an old thread. Are you interested in >parting with it? > > > >cheers, > >chuck. > >

21 years

1
0
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Stan Veit's History of the Personal Computer

by tosteve＠yahoo.com

Hi, Is there a more interesting book on early computers? I doubt it. Who was it that was selling these here a while back? Send me a couple more copies please. Thanks! Steve. ____________________________________________________ Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs

21 years

6
5
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volunteers wanted for list help :)

by jwest＠classiccmp.org

I'd like to solicit volunteers to help with gating posts from cctalk to cctech. Ideally, people in a drastically different time zone than central US :) Gating posts takes about 5-15 minutes per day, all depends on how many people are doing it. You basically log in to a website for cctech and click on "accept" if the post is 100% on-topic, or reject if it's not. You then log in to a website for cctalk and click "accept" if it's ok (non-list member post) or "reject" if its one of the few spam that makes it by the filters. When this is done consistently, the list runs smooth and it's very quick & easy to do. When it's not run consistently, it can become a royal pain and consume a lot of time. Doing this gating used to be a very time consuming thing, but since I've made some changes to the mail stream it's not quite quick and easy - as long as it's kept up with. I - and the people on cctech, would greatly appreciate it if a reliable individual with 5 to 15 minutes per day to spare can help out! Jay West

21 years

1
0
0 0

free Grinnell GMR-270 frame buffer for PDP-11

by hardware＠ees1s0.engr.ccny.cuny.edu

Dear Classiccmp Community, I have a Grinnell GMR-270 frame buffer for a PDP-11 to give away. It was given to me as working, but I cannot test it since I do not currently have a working PDP-11 system. It provides color 512x512 output to a monitor, which a included. Also included is the original documentation, which includes technical data and programming information. It seems that it can also act as a frame grabber. It has hardware pan/zoom functionality. It is a regular 19" rack unit, approximately a cube, and weighs around 40 pounds. I am in New York City. If you want it, come and get it. thanks, -kurt

21 years

2
1
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Another disk imaging project

by dave04a＠dunfield.com

Hi Guys, I'm really getting fed-up with the limitations of the PC floppy disk controller. Here's another idea I've had on the back-burner for quite some time, I've mentioned to a couple of you during private correspondance, but here it is for open discussion. The idea is to make a small single-board computer with a microcontroller, a WD2793 or similar floppy disk controller, enough memory to buffer a few tracks, and a high-speed serial port for communication with the PC. The board would have connectors for 5.25"/3" drives and 8" drives, and would properly interface to all drive types. Firmware would be developed to provide read/format/write/analysis capabilities around the more powerful WD chip. Images would be transferred via the serial connection to and from the PC. This should allow us to archive soft-sector formats that are not compatible with the PC, and also to perform these functions under virtually any PC environment. I just haven't had time to design and build the board ... anyone else interested in working together on such a project? Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

21 years

15
34
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1979 HP Collectors Dream 2649A model computer

by dwight.elvey＠amd.com

Hi I was going to correct that spelling but I got distracted by work. I just sent it without doing so. In any case, things like Jell-O are bad to wake in. Dwight >From: "Ade Vickers" <javickers at solutionengineers.com> > >Dwight K. Elvey wrote: > >>From: "Joe R." <rigdonj at cfl.rr.com> >>> >>> LOL! Anybody need an HP >>TERMINAL<<? >>><http://cgi.ebay.com/1979-HP-Collectors-Dream-2649A-model-computer_W0QQ >>>itemZ >>>5230070472QQcategoryZ4193QQrdZ1QQcmdZViewItem> >>> >>> Joe >>> >>> >> >>Hi >> I'm dreaming but just as I reach for the keyboard, I wake up in a cold >sweet. What does that mean? > >It means that either: > >A) the custard went cold while you were asleep. Microwave the sweet until >warm, then consume >B) Your sweet is supposed to be cold. Eat & enjoy. Don't fall asleep in it, >as it will spoil the texture. > > >HTH, >Ade. > > >PS: Ironically, I *do* need an HP terminal.... To get my A700 running! >Unfortunately, being 3000 miles the wrong side of a big lump of water kind >of prevents me from bidding for the "dream computer" of the subject... > >-- >No virus found in this outgoing message. >Checked by AVG Anti-Virus. >Version: 7.0.338 / Virus Database: 267.10.9/72 - Release Date: 14/08/2005 > > > >

21 years

2
1
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unibus backplane list?

by dwight.elvey＠amd.com

>From: "Joe R." <rigdonj at cfl.rr.com> > >At 03:51 PM 8/12/05 -0600, you wrote: >>On 8/12/05, Brad Parker <brad at heeltoe.com> wrote: >>> Is there a list of the various pdp-11 unibus backplanes anywhere? >> >>I do not know of a master list online. >> >>> My 11/44 has a DD11-DF in it which is impossible to get cards into and >>> out of. It's like something is physcally wrong with it. Rather than >>> damage any cards I thought I'd replace it. >> >>It takes a bit of force to get hex cards in a nearly-unused backplane. >> I've bent latches trying to get boards in. > > I've had similar trouble with the HP 1000 boards. I found that if I >clean the edge connectors and them wipe them with a rag slightly dampened >with WD-40 (mostly kerosene, a light oil) that the cards go in and out much >easier and I have a lot less intermitant contacts. I believe the oil >coating also helps reduce oxidation of the contacts. > > Joe Hi From what I've been told, WD-40 contains both silicon and petrolium oils. I prefer using silicon grease for this purpose. Past experiments with petrolium oil and grease showed that the contact resistance increased on clean contacts while the silicon grease showed a significant drop in resistance. I recommend Dow-Cornings, DC-4. Dwight

21 years

3
2
0 0

unibus backplane list?

by dwight.elvey＠amd.com

>From: "Joe R." <rigdonj at cfl.rr.com> > >At 02:31 PM 8/15/05 -0700, Dwight wrote: >>>From: "Joe R." <rigdonj at cfl.rr.com> >>> >>>At 03:51 PM 8/12/05 -0600, you wrote: >>>>On 8/12/05, Brad Parker <brad at heeltoe.com> wrote: >>>>> Is there a list of the various pdp-11 unibus backplanes anywhere? >>>> >>>>I do not know of a master list online. >>>> >>>>> My 11/44 has a DD11-DF in it which is impossible to get cards into and >>>>> out of. It's like something is physcally wrong with it. Rather than >>>>> damage any cards I thought I'd replace it. >>>> >>>>It takes a bit of force to get hex cards in a nearly-unused backplane. >>>> I've bent latches trying to get boards in. >>> >>> I've had similar trouble with the HP 1000 boards. I found that if I >>>clean the edge connectors and them wipe them with a rag slightly dampened >>>with WD-40 (mostly kerosene, a light oil) that the cards go in and out much >>>easier and I have a lot less intermitant contacts. I believe the oil >>>coating also helps reduce oxidation of the contacts. >>> >>> Joe >> >>Hi >> From what I've been told, WD-40 contains both silicon and >>petrolium oils. I prefer using silicon grease for this purpose. >>Past experiments with petrolium oil and grease showed that the >>contact resistance increased on clean contacts while the >>silicon grease showed a significant drop in resistance. >> I recommend Dow-Cornings, DC-4. > > Does DC-4 lower the force required to insert and remove the board? Where >can you get it? Any idea how much WD-40 increases the contact resistance? >Even if it does increase the resistance it has cured many of problems that >I've had with the 1000s so it seems to do more good than harm. > > Joe Hi Joe Most any electrical supply shop has it or can get it. McMaster-Carr list it as well. The measurements were done with petrolium grease but I forget which one. We'd see a normal 10 milli-ohm contact go as high as 20-30 milli-ohms. The silicon grease would usually take a 10 milli-ohm dry contact and reduce it to around 2.5 milli-ohms ( close to our measurement limit, using a 4 point DVM ). These were typical gold-gold edge connectors. It does reduce the force required but not as much as the petrolium grease did. I'd suspect that it might be similar to the wd40, being a lighter oil. Dwight

21 years

1
0
0 0

Analog modem emulator?

by James＠jdfogg.com

> > Just curious...has there ever been a device available to anyone's > > knowledge that functions like an analog phone line and > allows transmission via TCPIP? Get an old phone system with analog station cards (for POTS phones) and stick a system with a modem on one extension with it set to autoanswer and call it with a modem from another extension.

21 years

11
33
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HP 1610A question

by birs23＠zeelandnet.nl

I just got a HP 1610 Logic Analyzer and although its in good shape the monitor is clearly very dead. I did notice that on the bottom there are several DB25 ports, is it perhaps possible to hook up a terminal or something to it and control it from there or something ? I think its a long shot but you never now. Thanks! Stefan. ------------------------------------------------------- http://www.oldcomputercollection.com

21 years

3
3
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Memory chip substitute?

by dwight.elvey＠amd.com

>From: "Allison" <ajp166 at bellatlantic.net> > >> >>Subject: Re: Memory chip substitute? >> From: "Dwight K. Elvey" <dwight.elvey at amd.com> >> Date: Mon, 15 Aug 2005 10:54:11 -0700 (PDT) >> To: cctalk at classiccmp.org >> >>>From: "Allison" <ajp166 at bellatlantic.net> >>> >>>> >>>>Subject: Memory chip substitute? >>>> From: "Richard A. Cini" <rcini at optonline.net> >>>> Date: Mon, 15 Aug 2005 11:12:20 -0400 >>>> To: CCTalk <cctalk at classiccmp.org> >>>> >>>>All: >>>> >>>> I'm repairing a few S100 memory boards and I'm having trouble >>>>crossing a memory chip on the SSM MB7 16k board. The chip is an NEC UPD410D. >>>>I have D5101LC1's "in stock". Are these equivalent? >>> >>>No, not even close. >>> >>>UPD410 is a fairly fast semistatic 4kx1. 5101 is cmos 256x4. >>> >>>What memory board has a upd410 on it? Very unusual. >>> >>> >>>Allison >>> >> >>Hi >> It seems like 4044 and 6044 are both 4Kx1 chips. These >>were used on HeathKit H8 8K memory boards. I'd suspect that >>they might work. The onlt source I've found is a local >>place called Anchor Electronics. I don't recall if they >>have a web page. >>Dwight > >Not even close. The upd410 is 18pin .6" centers. Pins are the same as >TMS4060 and intel 2107 save for the 410 had a static core, the other were >dynamic. > > >Allison > Ahhh! 0.6 centers. Seems like I've seen these on something else I have for a KIM expansion card. I do have a NEC data book someplace with the specs on the UPD410D's. It might also include a cross reference. Some of the data books did this. Dwight

21 years

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Analog modem emulator?

by dwight.elvey＠amd.com

>From: "Jim Leonard" <trixter at oldskool.org> > >Tony Duell wrote: >>>>Sounds like the cards were approximately contemporary. >>> >>>That's perfectly reasonable. It could be that the Serial card was meant >>>for local interfacing to serial peripherals while the Communications card >>>was meant for "high-speed" telecommunications applications. >> >> Yes. The bit-banger is fairly usless for serial input, although it's fine >> for output. I suspect it was mainly used for driving a serial printer (I > >Can someone clarify what "bit-banger" means and why it was different from a >contemporary serial interface card? > Hi Jim Bit-banging usually means that there is no uart or even a shift register. There is a single bit port that the data is directly sent from the main processor. It requires that the processor produce all the bit timing. Things like clock interrupts or variable refresh would be bad( with the exception that the clock interrupt could be the timing for a fast processor ). Dwight

21 years

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Memory chip substitute?

by ajp166＠bellatlantic.net

> >Subject: Re: Memory chip substitute? > From: "Dwight K. Elvey" <dwight.elvey at amd.com> > Date: Mon, 15 Aug 2005 10:54:11 -0700 (PDT) > To: cctalk at classiccmp.org > >>From: "Allison" <ajp166 at bellatlantic.net> >> >>> >>>Subject: Memory chip substitute? >>> From: "Richard A. Cini" <rcini at optonline.net> >>> Date: Mon, 15 Aug 2005 11:12:20 -0400 >>> To: CCTalk <cctalk at classiccmp.org> >>> >>>All: >>> >>> I'm repairing a few S100 memory boards and I'm having trouble >>>crossing a memory chip on the SSM MB7 16k board. The chip is an NEC UPD410D. >>>I have D5101LC1's "in stock". Are these equivalent? >> >>No, not even close. >> >>UPD410 is a fairly fast semistatic 4kx1. 5101 is cmos 256x4. >> >>What memory board has a upd410 on it? Very unusual. >> >> >>Allison >> > >Hi > It seems like 4044 and 6044 are both 4Kx1 chips. These >were used on HeathKit H8 8K memory boards. I'd suspect that >they might work. The onlt source I've found is a local >place called Anchor Electronics. I don't recall if they >have a web page. >Dwight Not even close. The upd410 is 18pin .6" centers. Pins are the same as TMS4060 and intel 2107 save for the 410 had a static core, the other were dynamic. Allison

21 years

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Memory chip substitute?

by ajp166＠bellatlantic.net

I'll have to dig, I may still have a few. They were discontinued by NEC bad around 1980. Allison > >Subject: RE: Memory chip substitute? > From: "Richard A. Cini" <rcini at optonline.net> > Date: Mon, 15 Aug 2005 13:51:05 -0400 > To: "'General Discussion: On-Topic and Off-Topic Posts'" <cctalk at classiccmp.org> > >The board is a Solid State Music MB7 16k board. I have (at least) one bad >chip on it. > > > >-----Original Message----- >From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] >On Behalf Of Allison >Sent: Monday, August 15, 2005 1:34 PM >To: cctalk at classiccmp.org >Subject: Re: Memory chip substitute? > > >> >>Subject: Memory chip substitute? >> From: "Richard A. Cini" <rcini at optonline.net> >> Date: Mon, 15 Aug 2005 11:12:20 -0400 >> To: CCTalk <cctalk at classiccmp.org> >> >>All: >> >> I'm repairing a few S100 memory boards and I'm having trouble >crossing >>a memory chip on the SSM MB7 16k board. The chip is an NEC UPD410D. I >>have D5101LC1's "in stock". Are these equivalent? > >No, not even close. > >UPD410 is a fairly fast semistatic 4kx1. 5101 is cmos 256x4. > >What memory board has a upd410 on it? Very unusual. > > >Allison

21 years

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Possible entertainment for VCF 8.0

by vcf＠siconic.com

I was contacted by this guy who makes music using old synths and vintage 8-bitters as instruments. You can hear one of his songs here: http://www.myspace.com/quarknova Note: requires a modern browser with fancy plug-ins to play. I'm thinking of booking a band like this to play at VCF 8.0. What do you folks think? -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years

9
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Computer-controlled musical equipment

by gordon＠gjcp.net

This is something we don't hear a lot about on the list. A lot of it is on-topic, and some of the more obscure kit was based on fairly common single-board computers of their day. The PPG Wave ran Flex on its Eurocom II board (powered by a 6809). The Fairlight was based on two 6809 CPUs. There was the old Greengate kit that plugged into Apple IIs, and an editor for the Ensoniq Mirage that again ran on an Apple II. I don't know what the Simmons SDX used but apparently it was a fairly common SBC. I know the SDS7 has a 6802 on the CPU board. Gordon.

21 years

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Memory chip substitute?

by dwight.elvey＠amd.com

>From: "Allison" <ajp166 at bellatlantic.net> > >> >>Subject: Memory chip substitute? >> From: "Richard A. Cini" <rcini at optonline.net> >> Date: Mon, 15 Aug 2005 11:12:20 -0400 >> To: CCTalk <cctalk at classiccmp.org> >> >>All: >> >> I'm repairing a few S100 memory boards and I'm having trouble >>crossing a memory chip on the SSM MB7 16k board. The chip is an NEC UPD410D. >>I have D5101LC1's "in stock". Are these equivalent? > >No, not even close. > >UPD410 is a fairly fast semistatic 4kx1. 5101 is cmos 256x4. > >What memory board has a upd410 on it? Very unusual. > > >Allison > Hi It seems like 4044 and 6044 are both 4Kx1 chips. These were used on HeathKit H8 8K memory boards. I'd suspect that they might work. The onlt source I've found is a local place called Anchor Electronics. I don't recall if they have a web page. Dwight Dwight

21 years

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ImageDisk and some 8" images posted

by ajp166＠bellatlantic.net

> >Subject: Re: ImageDisk and some 8" images posted > From: Dave Dunfield <dave04a at dunfield.com> > Date: Wed, 03 Aug 2005 05:58:03 -0400 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >>> IIRC, the Ensoniq Mirage had mixed sector sizes. >> >>Hey... I have one of those - it used to belong to my mother (she was a >>professional musician). >> >>I'd love to have a way to image disks for it. I think I remembered >>the disks were wierd, but not how they were wierd. > >Unfortunately it's looking like mixed sector sizes within one track are >not within the capabilities of the 765 to write - although I could probably >READ them OK (and with a documented image file format, you would at least >have access to the data so you could try to find some other way to recreate >the disks if you had to). Dave there is a trick. Looks at FCOPY at Gaby's (unoffical CPM archive). Tim and I developed it for a project and it's not a generic imager. However we found a few things out and one is that most 765 implmentations will lock up if in the worng mode (SD or DD) initially. So to do mixed sector you can't write. However reading is possible if you first try the mode that doesnt lock first then switch. In the end you will be recreating the catsweasel. If you really want to go to the next level starty with a PC fast enough and skip the whole FDC chip thing. The next level is a data speperator logic and a shift register that can be read at the bit rate by the PC and do the needed pattern regognition (look for sync, address marks and the like), and then build a literally imaged disk and that can be anaylysed. Allison

21 years

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Memory chip substitute?

by ajp166＠bellatlantic.net

> >Subject: Memory chip substitute? > From: "Richard A. Cini" <rcini at optonline.net> > Date: Mon, 15 Aug 2005 11:12:20 -0400 > To: CCTalk <cctalk at classiccmp.org> > >All: > > I'm repairing a few S100 memory boards and I'm having trouble >crossing a memory chip on the SSM MB7 16k board. The chip is an NEC UPD410D. >I have D5101LC1's "in stock". Are these equivalent? No, not even close. UPD410 is a fairly fast semistatic 4kx1. 5101 is cmos 256x4. What memory board has a upd410 on it? Very unusual. Allison

21 years

2
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1979 HP Collectors Dream 2649A model computer

by rigdonj＠cfl.rr.com

LOL! Anybody need an HP >>TERMINAL<<? <http://cgi.ebay.com/1979-HP-Collectors-Dream-2649A-model-computer_W0QQitemZ 5230070472QQcategoryZ4193QQrdZ1QQcmdZViewItem> Joe

21 years

1
0
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unibus backplane list?

by brad＠heeltoe.com

Hi Is there a list of the various pdp-11 unibus backplanes anywhere? My 11/44 has a DD11-DF in it which is impossible to get cards into and out of. It's like something is physcally wrong with it. Rather than damage any cards I thought I'd replace it. So, I looked at my 'space' 44 and found it had an RK611. That's nice, but not helpful as I have no rk05's (yet :-) It also has a DD11-B, which looks like it might work, since I only need 2 slots for the short term. I was curious if there was a list somewhere of what stock unibs backplane panels. (like what's the difference between an DD11-DF and a DD11-DK?) -brad Brad Parker Heeltoe Consulting +1-781-483-3101 http://www.heeltoe.com

21 years

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Memory chip substitute?

by rcini＠optonline.net

All: I'm repairing a few S100 memory boards and I'm having trouble crossing a memory chip on the SSM MB7 16k board. The chip is an NEC UPD410D. I have D5101LC1's "in stock". Are these equivalent? Thanks. Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

21 years

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Attaching a Macintosh 400k external disk drive to a Catweasel

by tlindner＠ix.netcom.com

Anybody have any thoughts regarding this? I'd like to accomplish this without destroying the connector on the 400k disk drive. -- tim lindner tlindner at ix.netcom.com Bright

21 years

3
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HP tape drive available

by jwest＠classiccmp.org

HP 7970B (800BPI) I powered it up once, arms lost tension. May need major repair, maybe just a cleaning. I never looked in to it. It's taking too much room. First vaguely fair offer + shipping. I'm going to guess that it's around 130 pounds perhaps. Jay West

21 years

2
1
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Sanyo MBC-1000

by aw288＠osfn.org

I have an old Sanyo MBC-1000 CPM machine that is completely in my way, so out it goes. It powers up, but I don't have a CPM disk, so not much happens. I have some disks for applications, and the original users manual (sort of a thick thing). Anyone interested? It weighs about 40 pounds or so unpacked, and figure shipping from 10512. Cheap! Real cheap! William Donzelli aw288 at osfn.org

21 years

1
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HP21MX booster board?

by jwest＠classiccmp.org

I am doing a little basement cleaning and pitching some things. Was tossing an HP frequency analyzer that was in bad shape and decided to pop the cover and grab the cpu board (the cpu board is a 21MX M-series). Also got 64k memory & controller :) My question is two fold -first, what's necessary to use this M series board as a regular processor. I see the base instruction set on the bottom plus two additional non-standard microcode cards. I can just remove those, but didn't know if any changes to the M series board were required. Second, there is a board I've never seen before mounted under the mainboard on the opposite end of the microcode. The board is labled "booster board" and is about 1/2 the size of the main cpu board. I would normally think this was just a specific board to the frequency analyzer, but, I think I've heard Bob Shannon talk about this booster board before in more general terms. Should I keep the booster board? Jay West

21 years

3
3
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Supercolour 6000

by leeedavison＠yahoo.co.uk

Found one of these recently. It seems to be an intelligent hires graphics capable terminal with a number of emulation modes including . ANSI & DEC VT Aydin REGIS Tektronix TDS C4000 I have the 6041 desktop unit and 6071 VT220 keyboard, no monitor though. Inside the 6041 are two cards, one with a Philips 68070 and 1MB of battery backed SRAM (batteries missing) and a TMS34010 based card I assume this is the CPU/video card. Anyone know anything about this? Is it worth keeping? It needs batteries, fixings - screws etc, and probably some cleanup where a previous owner hand soldered 1/2 MB of zip RAM in. I've not powered it as I don't know the monitor requirements and it's not top priority yet. Lee. . ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com

21 years

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Stuff for sale/trade

by rcini＠optonline.net

All: I'm rearranging the shop and I've found a bunch of stuff in boxes that I haven't used in a long time, some classic and some not. Here's the list: Compaq DLT 5g/10g SCSI tape drive. Working condition; pulled from service at home. Circuit Cellar SB180. Includes COMM180 board and floppy drives in a nice "shoebox" case. With disks. Circuit Cellar MPX16 system in case with software. HP Plotter 7550A (8-pen). Working (very heavy). Fluke 9010A microprocessor troubleshooter with 8080 pod. Working last time used. Remaining spare BYTEs: 1975: 12 1976: 4 1977: 2,3,10,11,12 1978: 1-6, 9 1979: 1,5-10,12 1980: 4,7-10 1981: 3-5,8 1983: 3,8 Please contact me off-list if interested in any/all. I'm trying to pare down my collection of things so I'd be interested in $$$ more than a trade (although I'm looking for MITS tape software and a memory board for a KIM-1). Shipping or pick-up would be from Syosset, NY (11791). US/Canada only (except magazines). Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

21 years

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free Grinnell GMR-270 frame buffer for PDP-11

by hardware＠ees1s0.engr.ccny.cuny.edu

Dear Classiccmp Community, I have a Grinnell GMR-270 frame buffer for a PDP-11 to give away. It was given to me as working, but I cannot test it since I do not currently have a working PDP-11 system. It provides color 512x512 output to a monitor, which a included. Also included is the original documentation, which includes technical data and programming information. It seems that it can also act as a frame grabber. It has hardware pan/zoom functionality. It is a regular 19" rack unit, approximately a cube, and weighs around 40 pounds. I am in New York City. If you want it, come and get it. thanks, -kurt

21 years

1
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Got the Book

by aek＠bitsavers.org

I started reading it late Friday and looking at the pictures. -- If others would like to do the same http://www.bitsavers.org/pdf/cdc/6x00/books/ DesignOfAComputer_CDC6600.pdf

21 years

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Got the Book

by jrkeys＠concentric.net

That signed copy of "Design of a Computer Control Data 6600" came in the mail Friday as gift, someone paid the $125 for it. I started reading it late Friday and looking at the pictures. :-) John

21 years

1
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TMSCP bootstrap

by aek＠bitsavers.org

Until a MU prom can be found, this may help. -- In article <33299DEC.2DB7 at ix.netcom.com>, Bill Hockridge <beh_inc at ix.netcom.com> wrote: >I'm looking for the bootstrap loader code to boot a PDP-11/70 from a >TU-81 plus tape drive (M8739 controller card). > >Does anyone have access to the loader code or know where I can find it? Below are some responses that Robin Birch collected and then forwarded to me when I asked a similar question. These form the very first entries in an archive of bootstraps that is available at http://sunsite.unc.edu/pub/academic/computer-science/history/pdp-11/ bootstraps The original attributions for the bootstraps below belong with BSD 2.x (through Steven Schultz) and RT-11 (through Bob Schor). Tim. (shoppa at triumf.ca) ----------------cut here--------- Here's the TMSCP togglein routine. You start depositing at location 01000. The source is included. as -o a.out tk.s strip a.out dd if=a.out of=b.out bs=16 skip=1 od b.out The 'dd' is needed to removed the a.out header. Enjoy. Steven #! /bin/sh # This is a shell archive, meaning: # 1. Remove everything above the #! /bin/sh line. # 2. Save the resulting text in a file. # 3. Execute the file with /bin/sh (not csh) to create: # b.od # tk.s # This archive created: Sun Jan 21 14:06:24 1996 export PATH; PATH=/bin:/usr/bin:$PATH if test -f 'b.od' then echo shar: "will not over-write existing file 'b.od'" else cat << \SHAR_EOF > 'b.od' 0000000 000000 000000 000000 000000 000000 000000 000000 000000 * 0001000 005701 001002 012701 174500 005021 012704 004000 005002 0001020 105022 020204 103775 010705 062705 000234 005711 100002 0001040 005741 000762 030411 001772 012511 006304 100367 012737 0001060 000400 002102 012737 000044 002100 010037 002110 012737 0001100 000011 002114 012737 020000 002116 012702 002004 012722 0001120 002020 010203 010422 012722 002104 010422 014102 005713 0001140 100776 105737 002032 001320 012702 002114 012722 000045 0001160 012722 020002 005022 005022 005022 010413 010437 002012 0001200 011102 005713 100776 105737 002032 001276 012702 002114 0001220 012722 000041 012722 020000 012722 001000 005022 005022 0001240 010413 010437 002012 011102 005713 100776 105737 002032 0001260 001253 005007 100000 002004 000000 000001 0001274 SHAR_EOF fi if test -f 'tk.s' then echo shar: "will not over-write existing file 'tk.s'" else cat << \SHAR_EOF > 'tk.s' . = .+ 01000 / TMSCP bootrom code. / R0 = Unit to boot from / R1 = CSR of controller (0 if default 174500 to be used) start: tst r1 bne rewind mov $174500,r1 rewind: clr (r1)+ / start tk init sequence / move pointer to tksa register mov $4000,r4 / state test bit to step 1 clr r2 / clear bottom 4000(8) bytes 1: clrb (r2)+ cmp r2,r4 blo 1b mov pc,r5 / position independent address add $cmdtbl-.,r5 / of init seq table 2: tst (r1) / error ? bpl 1f / no - skip the backup tst -(r1) / put CSR back to entry value br rewind / might as well go try again 1: bit r4,(r1) / current step done ? beq 2b / no mov (r5)+,(r1) / yes, load next step info from table asl r4 / change state test bit to next step bpl 2b / if all steps not done, go back / r4 now = 100000, TK_OWN bit mov $400,*$cmdhdr+2 / tape VCID = 1 mov $36.,*$cmdhdr / command packet length / don't set response packet length, / little shakey but it works. mov r0,*$unit / set unit in packet mov $11,*$tkcmd+8. / on-line command opcode mov $20000,*$tkcmd+10. / set clear serious exception mov $ring,r2 / initialize cmd/rsp ring mov $tkrsp,(r2)+ / address of response packet mov r2,r3 / save address "ring+2" mov r4,(r2)+ / set TK owner mov $tkcmd,(r2)+ / address of command packet mov r4,(r2)+ / set TK owner mov -(r1),r2 / start TK polling 3: tst (r3) / wait for response (ring+2) bmi 3b tstb *$tkrsp+10. bne rewind mov $tkcmd+8.,r2 mov $45,(r2)+ / reposition opcode mov $20002,(r2)+ / set rewind & clear serious exception clr (r2)+ / clear record/object count clr (r2)+ / zzz2 clr (r2)+ / clear tape mark count mov r4,(r3) / set TK owner of response (ring+2) mov r4,*$ring+6 / set TK owner of command mov (r1),r2 / start TK polling 1: tst (r3) / wait for response (ring+2) bmi 1b tstb *$tkrsp+10. / does returned status = SUCCESS ? bne rewind / no, hang mov $tkcmd+8.,r2 mov $41,(r2)+ / read opcode mov $20000,(r2)+ / set clear serious exception mov $512.,(r2)+ / byte count clr (r2)+ / zzz2 clr (r2)+ / buffer address is 0 mov r4,(r3) / set TK owner of response (ring+2) mov r4,*$ring+6 / set TK owner of command mov (r1),r2 / start TK polling 1: tst (r3) / wait for response (ring+2) bmi 1b tstb *$tkrsp+10. / does returned status = SUCCESS ? bne rewind / no, hang clr pc cmdtbl: 100000 / TK_ERR, init step 1 ring / address of ringbase 0 / hi ringbase address 1 / TK go bit end: cmdint = 2000 / TMSCP stuff starts at 1kb rspint = cmdint+2. ring = rspint+2. rsphdr = ring+8. tkrsp = rsphdr+4. cmdhdr = tkrsp+48. tkcmd = cmdhdr+4. unit = tkcmd+4 SHAR_EOF fi exit 0 # End of shell archive ------------------------------------------------------------------------ ---- TMSCP Bootstrap RT-11 Installation Guide (AA-H376F-TC) Toggle the following instructions into memory, starting at address 076026 (the last instruction goes into 076176). When done, check to make sure all addresses have the correct content, then start running from 076026. Note that this asssumes that a bootable tape is loaded in the MU: device. 076100 100077 076102 105237 076104 100075 076106 010037 076110 100104 076112 112437 076114 100115 076116 112437 076120 100110 076122 010522 076124 010522 076026 005000 076126 012722 076030 012701 076130 100100 076032 174500 076132 010512 076034 012704 076134 024242 076036 076160 076136 005711 076040 012705 076140 005712 076042 004000 076142 100776 076044 010102 076144 005737 076046 012422 076146 100012 076050 005712 076150 001331 076052 100770 076152 105704 076054 031205 076154 100344 076056 001774 076156 005007 076060 012412 076160 046525 076062 006305 076162 100000 076064 100371 076164 100200 076066 010502 076166 000000 076070 005022 076170 000001 076072 105702 076172 004400 076074 100375 076174 020476 076076 105237 076176 020402

21 years

2
1
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Fwd: Rescue for a Toshiba T250 computer, CP/M, N. Chicago

by jfoust＠threedee.com

>From: "Dave Bradshaw" <dave at fishmonger.com> >To: <jfoust at threedee.com> >Subject: Toshiba T250 computer >Date: Fri, 12 Aug 2005 10:32:06 -0500 > >Hi John, > >In 1998 I exchanged emailed with you briefly regarding several thousand files residing on a Toshiba 8080 (?) based CP/M computer model T250 that I wanted to transfer to Word. I procrastinated as long as I could, but I finally got everything moved over to my Windows XP system. > >At the time you asked me what I was going to do with the system, so I thought I would offer it to you before I put it up on eBay. I am located in the northern Chicago suburbs. > >Here is a description: >Toshiba T250 CP/M 8080 (?) based micro computer >Two 8? DD DS floppy drives (1MB capacity per drive) >Parallel Port (built in cable) >RS-232 Serial Port (built in cable) >CP/M 64K Version 2.20 >Original Manuals >CP/M Primer Book > >I also have about 100 diskettes, some new, most used, but all formatted and functional. Software includes: >CP/M V2.12 >CP/M V2.20 >PMATE 3.02 Text Editor. Licensed copy with manuals and source code for compile >Magsam-E ISAM File Utilities >The usual CP/M stuff: CBASIC, STAT, PIP, and Disc Utilities >A freshly compiled version of Kermit that I used to do all of the file transfers over the last 2 weeks > >I am the original owner, and bought the machine some time in early 1982. Everything is 100% functional and in good working order. > >I look forward to hearing from you. >Dave Bradshaw >DDD >847-501-6570 ><mailto:dave at fishmonger.com>dave at fishmonger.com >

21 years

1
0
0 0

Free Grinnell Frame Buffer Graphics for PDP-11

by hardware＠ees1s0.engr.ccny.cuny.edu

Dear Classiccmp Community, I have a Grinnell GMR-270 frame buffer for a PDP-11 to give away. It was given to me as working, but I cannot test it since I do not currently have a working PDP-11 system. It provides color 512x512 output to a monitor, which a included. Also included is the original documentation, which includes technical data and programming information. It seems that it can also act as a frame grabber. It has hardware pan/zoom functionality. It is a regular 19" rack unit, approximately a cube, and weighs around 40 pounds. I am in New York City. If you want it, come and get it. thanks, -kurt

21 years

1
0
0 0

ImageDisk update

by dave04a＠dunfield.com

Hi Jules, >Just to clarify, does this need any particular disk controller chip (or >emulation thereof) to work? Or does it somehow get around the problems >which 99% of PC floppy controllers seem to have in reading certain disks >(particularly FM data)? ImageDisk works with the standard Nec765 based PC controller, preferably an AT or higher on which the data rate can be set. This has all the limitations inherent in many PC implementations. In testing about a dozen machines, I've found three which can read AND write mixed density disks without complaint. The FDCs on Intel mainboards appear to be quite good if you can live with the fact that they couldn't be bothered to provide a Drive-B select on the interface connector. >(one for the website, or the bundles readme.txt file maybe!) All of this information (and more) appears in ImageDisks online help. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

21 years

1
0
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PDP-11 Diagnostic Handbook

by aek＠bitsavers.org

If you use XXDP, you want a copy of this. http://www.bitsavers.org/pdf/dec/pdp11/xxdp/ PDP11_DiagnosticHandbook_1988.pdf

21 years

2
1
0 0

(no subject)

by hardware＠ees1s0.engr.ccny.cuny.edu

Dear Classiccmp Community, I have a Grinnell GMR-270 frame buffer for a PDP-11 to give away. It was given to me as working, but I cannot test it since I do not currently have a working PDP-11 system. It provides color 512x512 output to a monitor, which a included. Also included is the original documentation, which includes technical data and programming information. It seems that it can also act as a frame grabber. It has hardware pan/zoom functionality. It is a regular 19" rack unit, approximately a cube, and weighs around 40 pounds. I am in New York City. If you want it, come and get it. -kurt

21 years

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Possible entertainment for VCF 8.0

by dwight.elvey＠amd.com

>From: "John Foust" <jfoust at threedee.com> > >At 01:17 PM 8/12/2005, Roger Merchberger wrote: >>Boatloads of advertising won't get the general public through the door if there's nothing at the venue they're interested in. > >Precisely. You'd need a gimmick with sufficiently broad appeal >that the insiders would be offended by its simplicity and >lack of sophisticated taste. > >>P.S. How about a Vintage Arcade game section - or at least a Vintage Computer Game section? Any VCF that I'd be able to attend I would be glad to donate a computer or two with classic games for folks to play... Just a [prolly bad] thought... > >VCF did team up with the California Extreme show in 2000, no? > >- John > Hi Maybe we need a contest giving away an Apple 1 ;) Dwight

21 years

6
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Super Jolt on ePay

by leeedavison＠yahoo.co.uk

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5230100293 I've not seen one of these listed before. The auction says .. "Seems to be in Very Good Condition, No Obvious Damage! Has one EPROM installed" What it doesn't say is that it's had the two 2114 RAM chips removed so it isn't going to work as is. Lee. . ___________________________________________________________ How much free photo storage do you get? Store your holiday snaps for FREE with Yahoo! Photos http://uk.photos.yahoo.com

21 years

2
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voice coil and heads available from unknown drive

by jwest＠classiccmp.org

See picture at www.ezwind.net/jwest picture should be voicecoil.JPG I think this came from a CDC drive, not sure. There are 4 sets of heads on this voicecoil plus a glass reticule track indicator. Head sets 1 & 3 are lined up vertically, head set 2 is off to one side. Then is the glass reticule, and then a 4th set of heads still further off to one side. If someone knows what this is, perhaps they could use the heads. Cost = Shipping. If no one wants it, it will get pitched tomorrow. Jay

21 years

1
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Dual 8" Floppy Drives available

by jwest＠classiccmp.org

Pictures are at www.ezwind.net/jwest named FD-X.JPG. These two 8" floppy drives are about 1" tall each. The model number on them is Mitsubishi M2896-63-02U Rev. G. Their functionality is unknown, but were pulled from a working system. They appear to be doublesided. Best offer....or they go to ebay. Jay

21 years

1
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For Swap : HP 21MX E-Series

by birs23＠zeelandnet.nl

I am about to move and need to cut down on my collection a bit for now until I know how much space I really have. One of the items that has to go is a HP 21MX E-Series. I have no idea if it still works etc but willing to look at anything you want me to look at. The system is located in the south-west of the Netherlands and I prefer pick up, shipping might be possible but is going to be VERY expensive. Stefan. ------------------------------------------------------- http://www.oldcomputercollection.com

21 years

1
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ImageDisk update

by dave04a＠dunfield.com

In case anyone is interested, an updated ImageDisk is available: 1.00 = Inital public release 1.01 = Added Sector Cylinder/Head maps for disks with non-standard C/H values. Minor fixes and help update. 1.02 = Fully independant side0/side1 analysis. Fix reanalyze corrupting sector numbering map (major bug) Fix IMDAM to find sectors in "short" images. Major code cleanup, numerous minor bugs fixed and enhancements. 1.03 = Added options to control read/write interleave. Added low-level format function. Fix to recal twice to handle 765's limited to 77 tracks. Fix to timeout on hung FDC Update IMDAM to insert missing/excluded tracks during merge. ImageDisk is available from my site: http://www.parse.com/~ddunfield/museum/index.html Look at the "Disk/Software images" section (link near bottom of main page). -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

21 years

2
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TurboTechnix magazine available

by jack.rubin＠ameritech.net

I have volume one of TurboTechnix magazine, published by Borland in 1987/88. Six bimonthly issues; issue one introduces Turbo Pascal 4.0. Available for $5 + shipping. Please contact me directly if you are interested. Jack

21 years

1
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Apple ][ boards (mostly

by ard＠p850ug1.demon.co.uk

Sellam mentioned that Apple ][ Comms card the other day... Thinking I should have one, I went digging in the depths of my workshop and found a box of mostly Apple ][ cards. I am not really an Apple person, so perhaps somebody sould tell me what I've found... All are Apple ][ plug-in cards unless I state otherwise. Wildport Ltd 6522 VIA card. Contains a 6522 (Duh..) and a '04 only. Has a lenght of 26 way ribbon cable connected by a permanent transition connector, other end unterminated. Probably a user I/O card. MTL APC.1.1 (that's in the PCB etc, no other identification). Cotnains 6821, 6850, 1488, 1489, '04, 2-off '151, and a 4060. Also a 2.4576 MHz crystal. Ther's a 20 pin header with nothing plugged into it, and a 10 pin SIL header with a cable ending in a DB25-P connector. Obviously a serial card, the 4060 divides down the Xtal to give the baud clocks, these are selected by the '151s to give the Tx nad Rx clocks to the 6850. >From a glance at the board, it would appear one port of the 6821 goes to the 20 pin header, the other controls the 151s (baud selection). Note there's no firmware ROM on this board. Another MTL APC.1.1 Apple Super Serial Card II.6551 + 2316 + TTL + RS232 drivers. I think I recognise this :-) CCS Asynchornous Serial Interface Assy No 07710-0001A. Another RS232 card. Containss 6850, 75150, 75154 (RS232 driver and receiver), 8304, 2 PROMs, '09, '136, '03, 4702 (baud rate generator). 4 position DIP switch marked 'Baud Rate'. 26 pin header, presumably for an RS232 cable. Epson APL Board Unit G479501000-0. Nothing to do with the language, I think, just an Epson printer interface. Contains a 2708 EPROM + TTL. 16 pin header, presumably parallel printer interface. Wesper Microsystems Wizard IPI. Assy 80003601. Looks to be another printer interface. has an EPORM la=belled EPSON/G10X + TTL Sync Printer Inerface Card. Apple. TTL + 2 off 2112 RAM + ROM. Has a DE9 connector at the front edge. I think this is a Silentype interface. Mountain Computer ROMWRITERTTL + a couple of 555 timers + a 24 pin ZIF socket + discretes. Clearly an EPROM programmer. Apple/PC link interface. 2716 EPROM + TTL + buffers + M58725 (?). One 20 pin header near back of card. No idea! Advanced Text Systems P.001 6520 + a couple of '16s + space for more buffers. Had a bit of ribbon cable soldered to it, with a DB25-P on the end. No idea! Another Mountain Computer ROMWRITER MEMOSOFT Made In France. Contains 6850 + TTL. Also 3486 and 3487 (buffers?) never soldered in + space for passives and a 2716 EPROM. 6 solder pins at the front of the board, seem to go to the buffers. Maybe some kind of network card? ICE LTD Apple Cold Boot Adapter. EPROM + 6116 RAM + TTL. One 26 pin header that might go to ... P-DJ2-301-B Not an Apple card, this looks to be a hard disk controller. 26 pin header at one end, 34 pin + 2 off 20 pin at ther other, and a disk drive like power connector. Z80A + EPROM + 2 off 2114 + TTL + SCX6225NCM/V5 KONAN (what the heck is that?) + 8465 (data separator IIRC) PROG RWP 8255 + EPROM + 78S40 (SMPSU chip) + '158 + 28 pin ZIF socket. Another EPROM programmer board. ICE Multiplexor Host Adaptor 2716 + 6116 + TTL. One 20 pin header RML PIP card (nothing to do iwth the Apple ][). A 380Z board with 3 off Z80 PIO and a Z80 CTC + TTL on it. 50 pin RML 380Z bus header connector. Prototyping area. 2 off Videx 80 column (?) cards. Cotnain 46505 (CRT controller, 4 off 2114 RAM, 2 off EPROM + socket for another EPROM (char gen and firmware?), TTL Buffered Grappler+ (C) Orange Micro. 64K RAM (8 off 4864) + EPROM + TTL + a 40 pin chip (microcontroller?). 26 pin header (printer interface). Is this a printer buffer card? Microsoft Z80 card. Z80 + ROM + TTL. I know what this is.... Apple Clock Board. Maybe home-made (PCB is not plated-through). EPROM + 8253 + TTL. No external connections. Apple Parallel Interrupt Type 2. Looks to be the same origin as the last board.. EPROM + TTL. 10 pin header linked to a DA15 plug 2 off Communication Board. These aapear to the board Sellam was mentioning. 6850 + TTL + P2 PROM + 8304. 2 off Apple Parallel Printer Interface. TTL + P1 PROM. 20 pin external connector. I found the manual for this, so I know what it is (it's a centronincs-;like interface, the odd thing being that the busy line is an address input to the firmware PROM. The stnadard firmware goes into a loop waiting for the printer to go ready, when it does, the intructions read by the Apple are not the jump-round-the-loop, so it goes on and sends a characer). Watford Electronics 1770 module for the BBC micro (nothing to do with the Apple) Homebrew lightpen on stripboard with a 16 pin header connector. Presumably for the Apple ][ game port Wattford Electronics Sideways ZIF socket. PCB with a 28 pin ZIF socket and some resistor packs linked by ribbon cable to a 28 pin header. Presumably to fit in the 'ashtray' on a BBC micro to allow easy ROM swaping 2 of 'WORKSTATION' EPROMs, (C) University of Sussex. Probably for the BBC micro. Any ideas? A few more Beeb-related chips (Torch Z80 pack EPROMs, 8271, etc) Pracitcal Peripherals PROCLOCK. 6821 + MSM5382 (Real time clock chip) + EPROM + TTL. Oh, and a Lithium battery. Obvious what this is... Disk ][ Interface card. And yes, I know what it is... Heuristics 20A-1. TTL + 2 quad op-amps + 2 quad comparators + 2708. 3.5mm jcak socket. I think this might be a speech input card... Mountain Hardware Supertalker. TTL + PROM + 3418 _ 2 quad op-amps + LM380 audio amplifier. 3.5mm jack socket 'microphone input', 2.5mm jack socket 'speaker output). Speech I/O? 2 grotty dynamic microphones, probably for the last 2 card. Any thoughts? -tony

21 years

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cool Apple ][ Clone Webpage

by chenmel＠earthlink.net

I was trying to settle an arguement by finding a link to an Apple 2 clone that a friend of mine used to have (an Orange Peel). I googled a few keywords and found this COOL website of Apple ][ clone hardware. http://www.apple2clones.com/ These are the folks who kept the Apple legal department busy before Apple got all 'look-n-feel'y and sued Microsoft and HP. Just thought it was cool and interesting.

21 years

2
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Giveaway: many Digital esp VAX + other workstation / microcomputer + peripherals

by tgarcia＠hivemind.org

Hello all, A private collector is giving away most of his computer stash. Stuff marked (*) is possibly already claimed; other stuff probably isn't, so make your free claim. There is a risk of stuff getting trashed, which none of us want happening - see "points" below. = QBUS-based VAX (nice) = 4 x MicroVAX 3400 - ok, what we have are 4 x BA213 cabinets, filled with many cards including processor+memory (KA640), and a huge pile more of QBUS cards, which will be catalogued separately. Millions of DESQA and other Ethernet cards are certainly apparent. I know at least two of these have 110V supplies fitted, but I also think there are 240V supplies lying around somewhere. Some have bulkhead panels in need of cleaning up where the battery has misbehaved. 2 x VAX 4000-500 - similar comment on the bulkheads, otherwise some nice beasts :-). (* at least one of each of the above taken) 2 x R400X - expansion boxes (*) BA215 = QBUS-based VAX (cabinets only in various states of undress) = 2 x BA123 - contains parts of a uVax II, not looking healthy 3 x BA23 2 x BA23 third-party clone = Desktop VAX = 2 x VAXstation 3100/38 2 x VAXstation 3100/76 VXT 2000+ 12 x MicroVAX 3100/30 6 x MicroVAX 3100/20 or 20e (were the things below uVAX or VAXstations??) 1 x MicroVAX 10 (*) 2 x MicroVAX 2000 = Other Digital computers = PDP-11/34 - with front panel, boots to ODT, no hdd/floppy (*) DECmate III (PDP-8) 2 x DECstation 3100 MIPS R2000-based 3 x DEC rainbow + much software: system kit, CP/M-86, Lotus 123, MS-DOS = Digital peripherals = various x storage expansion (BA46A and BA42B?) 6 x RX50 floppy drive 5 x TK50 tape drive + tapes Digital TU58 many x TK70 drives + tapes many x 8-inch floppy drive many x other DSSI hard drives many x RD5x hard drives - "*rare!!*" as eBay would say, and data may need wiping; - certainly available but possibly not immediately many x MMJ cables = Digital terminals (genuine) = VT520 VT320 (*) VT240 VT102 = Digital documentation = RSX-11M 1/2A-B/3A-B/4A-B/5/6/7 (ie nice and complete :-) RT-11 2/4/5 VMS: Using DECwindows (grey) VAX C (grey) some DUNIX 4.0B manuals (*1 taken) 2 x TCPware for VMS boxes = CP/M workstation = Shelton SIG/NET Gemini Galaxy 2 = IBM PC/compatible = 2 x IBM XT genuine with 386 upgrade cards 2 x IBM PS/2-70 (*) DEC Prioris w/ storageworks cabinet many x old 286-era stuff = thin client style PCs = Netvectra N30 (*) NCD ThinSTAR - WinCE 2 x mini ITX silver cases (empty...) = Apple computer and peripherals = Apple Macintosh II Apple Macintosh SE 2 x Apple IIe 2 x Apple IIgs w/ 2 x 5.25" + 2 x 3.5" ? 6 x Disk II floppy drives Appleworks GS Hong Kong Apple II clone w/ built-in FDD - another "*rare!!*" so this might be handled separately? = Commodore = Commodore Amiga B1500 ? Commodore Plus/4 several x Commodore 64 2 x Commodore VIC-20 = Acorn = 3 x BBC B 4 x Acorn electron with PSU Acorn A3000 3 x Microvitec Cub monitors = Other microcomputer = 2 x Amstrad CPC-464 Amstrad CPC-128 Atari ST 520FM Atari 1024ST 2 x Dragon-32 HX-10 - MSX Microtan 65 homebuilt Sinclair QL Tandy Color CoCo 2 = Sun = Sparcstation 1 Sparcstation 2 4 x IPX LX ...and their keyboards and other peripherals and stuff. = Other workstation = IBM RS6000 of some sort = Wyse terminals = Wyse 60 ...more to go here... = PBX systems = Tyonix with 30 handsets London 32 London 16 = Misc = Psion Organiser II printer ChannelPlus Genlock Message Centre (?) 19" rackmount fan tray 64180 in-circuit emulator Westcode systems serial port switches Intel MDS 220 lots of miscellaneous stuff for all the above - cables, ADB/Sun keyboards, etc... oodles of terminators, T-pieces Points: (1) Claim these items ideally within the next couple of weeks, although should be able to hold on to certain things for a few weeks more -- especially if you can tag something and give an approximate time to fetch it/have it delivered. (2) Unless otherwise indicated, items can be collected free from near Horsham, West Sussex, England, or will be posted absolutely anywhere, as long as you pay handling/shipping costs (Paypal etc is possible if you're abroad). If you turn up in person, you can probably take a lot more than you originally planned, if you feel like it. (3) Condition: Nothing listed is known to be broken, but everything should be considered untested. Some obvious points: Storage will be absent from the VAXen, and external PSUs missing from some of the microcomputers. Feel free to ask questions, but no guarantees! (4) Items marked (*) are probably already taken, but feel free to express your interest anyway, in case minds change. Other things may also be claimed by the time you read this. (5) Super-top-prize (of gratitude :-) to anyone who wants to provide space to store this stuff for longer (or just play with it, most importantly to SAVE it all from destruction). Feel free to e-mail me on the address below. Feel free to send this anywhere sensible. Cheers, -- Tom | tgarcia AT hivemind DOT org

21 years

4
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Free Parts Computers in St. Louis, MO CoCo (4x 1, 3x 2, 1x 3) and Kaypro (2 & 4)

by nick＠computer-history.org

I have several parts computers available for pickup in St. Charles, MO. I have 4 CoCo 1's, 3 CoCo 2's, a CoCo 3, a Kaypro 2 and a 4. All have either cosmetic or operational difficulties, some have both. I've tried to freecycle them but had no luck. I was hoping there was someone in the area that could find a use for them. There are probably some other odds and ends to throw in as well. Nick

21 years

1
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Giveaway: many Digital esp VAX + other workstation / microcom puter + peripherals

by GOOI＠oce.nl

Grass is always greener at the other side :-) I gave it a moment some thought, but even at the same side of the pond, UK - The Netherlands, will be killing shipping costs. Why is that stuff so heavy? @!#(^%$ we would be better of collecting stamps :-) - Henk, PA8PDP. -----Original Message----- From: cctalk-bounces at classiccmp.org To: General Discussion: On-Topic and Off-Topic Posts Sent: 12-8-2005 19:10 Subject: Re: Giveaway: many Digital esp VAX + other workstation / microcomputer + peripherals On Fri, 12 Aug 2005, Patrick Finnegan wrote: > Why are all the good deals on the other side of the pond? ;) That's funny, I heard some bloke say the same thing from "over there". Actually, the good deals are in your own backyard. You're just too close to see them. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------ ------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years

1
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WD 1793 FDCs for sale

by dwight.elvey＠amd.com

Hi What I need is the improved replacement controller for the Versafloppy II. I forget the number but it was a 15?? to replace the 1771B( I think) . It was suppose to impove something about the format. Dwight > >> If you don't need 38 of 'em, www.bgmicro.com has 'em fer sale at $4.49 >each. >> >> At the auction, you're spending $3.63 each, just for comparison. > >Er, I get $4.16 each (including the $20 shipping charge). That's >getting close to the bgmicro cost (though I don't know what they >would want for shipping). > > Vince > >

21 years

1
0
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Inductive load

by pietra2p＠virgilio.it

Dear Brian, I'm italian electrical engineer expert in designing power inverters mainly using SCR components which are really preferable under the specific power dissipation and reliability to to sudden gradient of voltage/current to be superimposed to the SCR itself. Over the several technical articles written on the inductive loads topics, nothing related to inductice current coming back from the load to the source. With SCR I have to foresee power diode; with mosfet and IGBT this is automatically achieved due to reverse diode encapsulated. This is over the problem due to first istant peak current and surge voltage at a mosfet commutation switching. What do you think about. Regards, Max

21 years

1
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M9312 prom archive?

by aek＠bitsavers.org

> M9312 PROM goodness to be found at: ftp://ftp.dbit.com/pub/pdp11/boot/prom/ These are John's own versions of the code, and are just disk bootstraps. I was trying to locate the MU boot prom for someone.

21 years

1
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Pro-log M824 manual

by john.e.hieber＠juno.com

Bob. Did you obtain a manual for this device, I have need of one also. John

21 years

1
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Comprehensive Computer Catalog?

by classiccmp＠vintage-computer.com

Hans Pufal was maintaining the CCC for a time. I can't seem to find it anymore. Does anyone know where it currently resides or if it still exists? Thanks! -- Erik Klein www.vintage-computer.com www.vintage-computer.com/vcforum The Vintage Computer Forum

21 years

1
1
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Computer-controlled musical equipment

by gordon＠gjcp.net

This is something we don't hear a lot about on the list. A lot of it is on-topic, and some of the more obscure kit was based on fairly common single-board computers of their day. The PPG Wave could run

21 years

1
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Motorola 6800D2

by chuck.patten＠verizon.net

Noticed you had collected one from an old thread. Are you interested in parting with it? cheers, chuck.

21 years

1
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OT: Panasonic phone system FS

by rcini＠optonline.net

All: ARRRGH! I just {stupidly} bid on and won a Panasonic 616 phone system to experiment with the BBS project that was discussed last week. Unfortunately, this is NOT the right model -- I got the all-digital version and not the hybrid. Does anyone need a working 6x16 phone system for something other than a BBS project? I'm looking for $75 for it -- I'll eat the shipping. It includes the KSU and 4 extensions; supposedly working/removed from service. Other options include a trade for a hybrid 308/616/1232 model. Please contact off-list if interested. Thanks Rich Rich Cini Collector of classic computers Build Master for the Altair32 Emulation Project Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ /************************************************************/

21 years

1
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PDP11 message board

by ISC277＠CLCILLINOIS.EDU

Just wanted to let you guys know about the pdp11 message board I've been running. It's been up for awhile, I just never mentioned it on this list. http://pdpusers.dyndns.org <http://pdpusers.dyndns.org/> Take a look! Julian

21 years

3
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Who has an HP 1650B logic analyzer?

by aek＠bitsavers.org

What value are those resistors and how they are connected to power and ground? -- They are the same as the 16500 series. It is an RC network, and they are needed. http://www.bitsavers.org/pdf/hp/te/AP1244-1_minimProbIntrusion.pdf describes the circuit.

21 years

5
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sandia auction

by tponsford＠theriver.com

Bentley Auctioneers is having another Los Alamos/Sandia Labs and Pantex (your local nuclear bomb maker) auction in Albuquerque, New Mexico this weekend. Spotted were some Sun 3-80's and a Dec RL02 with probably other goodies. http://www.bentleysauction.com/misc/catalogs/nm081305.txt If your in the area, probably worth the drive. Cheers Tom

21 years

1
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Gaming System Lot on eBay

by jrkeys＠concentric.net

This thing is at $3151.01 and has not reached the reserve? http://cgi.ebay.com/HUGE-Personal-game-collection-for-sale-780-games_W0QQit…

21 years

2
1
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Who has an HP 1650B logic analyzer?

by vax9000＠gmail.com

I need a system disk badly. I posted on some news groups but got no answer. If you have one, would you please make a system disk for me? I will appreciate it and pay your cost. vax, 9000

21 years

3
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RK04's

by aek＠bitsavers.org

Oops, now that my memory is returning, the RK02 was the same geometry but half-density. RK02 carts say "1100BPI", RK05 carts say "2200BPI". Was there a RK04? == page 1-1 of the RK11-C manual (RK11-C_manual1971.pdf) "The high-density option provides a choice of either the RK03 Diablo Disk Drive Unit or the RK05 DECpack Unit, both utilizing the RK03-KA, IBM Type 2315 12 sector high-density disk cartridge. The low-density option provides a choice of either the RK02 Diablo Disk Drive Unit or the RK04 DECKpack Unit, both utilizing the RK02-KA IBM Type 2315 12-sector low density disk cartridge". low density is 12 256 byte sectors (1100 bpi) high density is 12 512 byte sectors (2200 bpi) both are 203 cyls, 2 tracks. I can't imagine there were many RK04's made..

21 years

2
1
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Diablo 30 power

by tradde＠excite.com

--- On Tue 08/09, Al Kossow < aek at bitsavers.org > wrote: From: Al Kossow [mailto: aek at bitsavers.org] To: classiccmp at classiccmp.org Date: Tue, 9 Aug 2005 19:06:37 -0700 Subject: Re: Diablo 30 power I was under the impression these were RK03s. Now I understand they are indeed RK01s. -- DEC never sold Pertec drives, though lots of third parties did. They most often showed up as Plesey add-ons. What you probably have is some variant of the D4000. They came as fixed/removable, just removable, 2315 front-load or 5440 top-load packs. The 2315 flavor was compatible to RK05's, 5440's were 5mb. Just checked, I have the D4000 service manual scanned, but it isn't up on bitsavers. I'll see about getting that done. The disks have a "-8" designation on the edge, where the RK05s have the -16. So I am guessing they are half the density of an RK05 pack? I am still trying to get these to work. Something happened during transport. The drives operate somewhat, although a bit flaky at times it seems. It could be something with the controller too. I am waiting to receive the hardcopy of the rest of the documents for this to figure out the problem. _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web!

21 years

3
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PDP11 message board

by ISC277＠CLCILLINOIS.EDU

Just wanted to let you guys know about the pdp11 message board I've been running. It's been up for awhile, I just never mentioned it on this list. http://pdpusers.dyndns.org <http://pdpusers.dyndns.org/> Take a look! Julian

21 years

1
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Sony PIC-1000 Magic Link and other Control Data items

by joel.bradley＠comcast.net

Hi gang - I am doing some house cleaning and found the following items. E-mail me if interested. I am not giving them away, but will sell for VERY reasonable prices. e-mail me with your best offer!: 1 - Sony Magic Link PIC-1000 3 - Belkin Pro Series 15 foot - DB25 Male/Female (serial) (NEW IN PACKAGE) 4 - Control Data Corporation Grey Ring Binders 4 - Control Data Coffee Mugs (white with green logo) 1 - Control Data Cyber 670 Manual yellow ring binder Thanks! Joel joel.bradley at comcast.net

21 years

1
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Calling Fred van Kempen!

by gtoal＠gtoal.com

I got a bounce while trying to mail you today. If you're still on the list can you mail me a working email address please? ... while talking to smtp.microwalt.nl.: >>> DATA <<< 550 5.7.1 Unable to relay for waltje at pdp11.nl 550 5.1.1 <waltje at pdp11.nl>... User unknown <<< 554 5.5.2 No valid recipients I'm going to take you up on your offer of reading the GUTS RK05 pack, if we can arrange the delivery. My old Dad has volunteered to hand-carry it as far as Brugge if you can find someone who can meet him at the ferry there? Groetjes, Graham

21 years

1
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Damaged IBM 5225 Printer, parts available II

by brother_cadfael＠juno.com

I forgot to mention that there are also 9 brand new sealed printer ribbons for this unit that I saved. Aftermarket replacements for IBM #4412372

21 years

1
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Damaged IBM 5225 Printer parts available

by brother_cadfael＠juno.com

This morning at work (auto repair shop) the scrap metal guy drove buy with this printer on the back of his truck. I did not get to it before one of my techs had gutted it for the cabinet. I was able to save the printer carriage assembly, what I think is the logic unit, and the power supply unit with the copper ribbon conductors intact. Are these parts worth saving, and if so, is anyone here interested? The power supply weighs in at 61kg's the printer isn't light either, maybe 20kg's so shipping is probably not practical. I can only hold them for a week or two due to a lack of space here at the shop. Thanks for any advice. Brian Hanson brother_cadfael at juno.com

21 years

1
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HP1000 A700 - what can I do with it?

by aek＠bitsavers.org

you appear to have an HP 1000 A-series and a 7914 disc/tape combo. in theory, you should be able to boot from the disc, assuming there is anything left of it since the heads probably weren't locked when it was moved. the software would have been loaded from the 1/4 cartridge tape but it doesn't look like you got any of those. it would be a good thing to read those HP 1/2 distribution tapes that go with the other system. jotting down what's written on the labels will reveal addtional clues on how the systems were used. they were probably running RTE-A on the A700 and some version of 6VM on the 1000Fs -- I may have the A-series CE manual. A and L series are sort of new relative to the manual archive that was saved.

21 years

3
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Intel Multibus Boards Available

by Pat_Fitzpatrick＠pmc-sierra.com

Hi List, In addition to salvaging what I can from my flooded basement, I'm also taking the opportunity to unload a few things that I no longer use. I don't know if anyone has any use for these boards from an intellec 800 box, but I thought I'd ask. As far as I can tell, they all work fine. 16K x 8 RAM 1001125 Qty 4 Processor 1000340 Front Panel Control 1000343 Monitor Module 1000351 Floppy Disk Controller 1001036 and 1000467 I also have two big blue floppy disk enclosures, each containing two 8" floppies (and one big honkin' power supply). Shipping costs for the enclosures are likely prohibitive, but I'm willing to pull parts out if anyone needs anything. Any takers?? I'm located in Saskatoon, SK, Canada. Pat

21 years

2
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OT: HP Handheld Conference 2005

by news＠computercollector.com

http://www.holyjoe.net/hhc2005/ Anyone going? ----------------------------------------- Evan Koblentz's personal homepage: http://www.snarc.net Also see: http://groups.yahoo.com/group/midatlanticretro/ Where did PDAs come from? http://www.snarc.net/pda/pda-treatise.htm *** Tell your friends about the (free!) Computer Collector Newsletter - 770 readers and no spam / Publishes every Monday / Write for us! - Mainframes to videogames, hardware and software, we cover it all - W: http://news.computercollector.com E: news at computercollector.com

21 years

1
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AAAAAAARRRRRRRRRRRRGGGGGGGGGGGGGGHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!!!!!

by vcf＠siconic.com

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5227183199 Read the description, then weep. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years

3
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Diablo 30 power

by aek＠bitsavers.org

I was under the impression these were RK03s. Now I understand they are indeed RK01s. -- DEC never sold Pertec drives, though lots of third parties did. They most often showed up as Plesey add-ons. What you probably have is some variant of the D4000. They came as fixed/removable, just removable, 2315 front-load or 5440 top-load packs. The 2315 flavor was compatible to RK05's, 5440's were 5mb. Just checked, I have the D4000 service manual scanned, but it isn't up on bitsavers. I'll see about getting that done.

21 years

1
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Diablo 30 power

by tradde＠excite.com

--- On Tue 08/09, Tony Duell < ard at p850ug1.demon.co.uk > wrote: From: Tony Duell [mailto: ard at p850ug1.demon.co.uk] To: cctalk at classiccmp.org Date: Tue, 9 Aug 2005 23:10:31 +0100 (BST) Subject: Re: Diablo 30 power > The power supply I have for my two RK8s (RK03s) is made by Pertec > and is called the model 9000. Depending on how many drives it can Are you sure that what you have are RK03s? The reason I question it is that the power voltages you've given for your PSU are totally wrong for the Diablo Model 30. And there was an older DEC drive, I think it was the RK01, that was a rebadged Pertec. > be a 9001, 9003, or 9004. It shows +5, +12, -26, +24. The 9004 > adds -24v. I hope this information is helpful to someone. -tony My mistake. I was under the impression these were RK03s. Now I understand they are indeed RK01s. What is the density of an RK01 pack versus and RK03. I think the RK03s held 2.5Mb per pack? _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web!

21 years

1
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Removing conductive foam residue from IC pins?

by jcwren＠jcwren.com

I have a bunch of old ICs that were stored in conductive foam, and I wish to move them to plastic tubes. The foam has decayed to that state where it just crumbles when touched. Any recommendations for cleaning off this old foam? It can be scraped off, to some degree, with fingernails, but I risk bending the pins, and it's not all that thorough. Soaking them in alcohol is probably not a good idea. :) --jc

21 years

3
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Diablo 30 power

by aek＠bitsavers.org

And there was an older DEC drive, I think it was the RK01, that was a rebadged Pertec. -- The RK01 was made by IOMEC (also sold by HP as 2870A) and was used in the RK8 (NOT the Omnibus RK8E) I have the drawings for the RK8, which will go up on bitsavers as soon as the RK8 manual arrives from NL.

21 years

1
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New Figurematic Today

by jrkeys＠concentric.net

I picked up a Marchant figurematic model 8ADX today at an auction from a guy that got it with some other items in the lot that he purchased. It had a power cord with it but by the time we meet in the parking lot to do the deal he had lost it. Anyone know a source for a power cord for this machine? Thanks John

21 years

2
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Problem using st.exe to push data off to tape

by fireflyst＠earthlink.net

I'm trying to use John Wilson's ST.EXE program for DOS to push data off to magtape on my Qualstar 1260S connected to an Adaptec 2902, but it stops with a media error on every tape I try. Here's what I have done: - Created a DOS boot disk with only the aspi8dos.sys driver loading - Defined my TAPE variable as SCSI5: The tape files and st.exe are stored on a fat16-formatted IDE drive. That is all that is on there, and the disk was freshly formatted. Here's what happens when various commands are issued: - st iput filename.ext 512 - tape goes back and forth then stops with a media error - st write - tape goes back and forth and then goes back to a dos prompt. I try to do 'st rew' after this, but then it does what looks like the 'write' operation - st weof - "on line" light blinks continuously. This doesn't always happen, sometimes it does the 'st write' behavior. So, thus far, I have no boot tapes. Can anyone help me out with this? Thanks Julian

21 years

2
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Diablo 30 power

by tradde＠excite.com

--- On Mon 08/08, Tony Duell < ard at p850ug1.demon.co.uk > wrote: From: Tony Duell [mailto: ard at p850ug1.demon.co.uk] To: cctalk at classiccmp.org Date: Mon, 8 Aug 2005 22:30:27 +0100 (BST) Subject: Diablo 30 power Joe, (I think) was asking about power for the Diablo Model 30 disk drive (DEC RK02/RK03). I had a chance to look in the manuals on bitsavers today. The Model 30 Maintenance Manual (not the parts list), gives the pinout of the power connector. I'd forgotten one detail, there are 2 connections for each of the +15V and =15V lines, one for the high-current, noisy, stuff (like motors), one for the low currnet, sensitive, stuff like the read amplifier. You should use separate wires for each connection and only join them at the PSU output terminals. There's also a maximum length of power cable, something like 5'. I don't see why this would be a major problem in any sane system layout. Oh yes, these drives take up to 8A (!) on the +/-15V lines. The PSU manual _is_ on bitsavers, I think. It's the Model 29 manual in the samre directory. No, this is not obvious, I was just looking at various manuals. The DEC PSU is, I think, electrcially different, though. -tony ----------------------- The power supply I have for my two RK8s (RK03s) is made by Pertec and is called the model 9000. Depending on how many drives it can be a 9001, 9003, or 9004. It shows +5, +12, -26, +24. The 9004 adds -24v. I hope this information is helpful to someone. Tim R _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web!

21 years

2
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DEC computing stuff up for sale. (early '80s)

by fireflyst＠earthlink.net

Got a bunch of classic computing junk up for sale, here it is: DEC RL02 Disk drive x2 - $150 ea RLV12 controller and cable - $30 with drive purchase only H9644 chassis with side panels and back door, and trim pieces for RA82 setup - free for local pickup DQ130 Pertec disk controller - free with purchase, no cabkit DEQNA adapter, unknown revision - $10, no cabkit BA11-SE expansion chassis with cover and expander card in it - $75, clean unblemished faceplate. Rack mount SCSI expansion chassis, with partial side rails, $60, very nice piece See something you like, make me an offer. These are asking prices

21 years

1
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DECDLD usage -good enough for minimal graphics?

by ISC277＠CLCILLINOIS.EDU

Hello everyone! I was just investigating the usage of DECDLD for defining a small graphic screen on my PDP11 during a program. When using a VT220 at 19200 baud, how fast can a screen be refreshed using DECDLD graphics? I was thinking of doing a multiplayer (4 player) game using this system.

21 years

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