test-drb

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101090 discussions

by wdonzelli＠gmail.com

OK, go to Ebay and look at item #29007747962. A nice machine, centainly. I can not help but think this machine was once Jim Willing's - or he has started selling things off. Does anyone know anything about the seller guardianrob453? If he is in touch with Jim Willing, I centainly need to talk to him. -- Will

19 years, 4 months

Visual 50 keyboard

by RLAAG＠PACBELL.NET

Found an old keyboard for a visual 50 terminal... If anyone can use this it is just for shipping charges...

19 years, 4 months

Problem with AS/400 terminal

by fireflyst＠earthlink.net

Hi Everyone! I was wondering if any of the CRT gurus here could help me out with a problem I'm having with my Twinax AS400 term. When I turn it on, it's fine. However, it's got a power saving feature that turns off the screen if it goes idle for too long. If this is activated and I try to wake it up by pressing a key on the keyboard, the screen goes crazy like it's got a bad refresh rate or something. The only way to fix it is to power it off and back on, which works every time - the problem with that is, I lose my twinax session, which can deadlock the machine depending on what mode I'm running it in. Any ideas? Julian

19 years, 4 months

Looking for OS/278 to boot up a DECmate I

by djg＠pdp8.net

>the "easiest" way to get OS/278 to a DECmate I >is by copying a boot floppy and putting it in the mail. Can anyone on >the list assist me with this? > I can make them and send them. I have most of the bits for a DECmate I but not enough to be functional. I did make these images for people but never heard back if they worked ok. http://www.pdp8.net/images/images/os8/DECmate_I.shtml They are also RX02 format which is what their machines seemed to be set up for. Is yours set for RX02? I can put these on floppies or if you know of a known good RX01/RX02 image for a DECmate I can use it. >One of my goals, BTW, is to snarfle off images of my PDP-8 >RX01 and RX02 disks for preservation and sharing. I have a few boxes >of disks from the 1978-1985 timeframe, up to the time I stopped using >a PDP-8 on a daily/weekly basis. > If your doing that the disks will be free. If you don't have a program to dump I have one at ftp://ftp.pdp8.net/software/dumprest/ which can dump RX01 and RX02 over the serial port. The code will need to be modified to use the serial port on the DECmate. Kermit source should show that. Mine makes image useable by SIMH which is the same format they are on my website. David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights Have any PDP-8 stuff you're willing to part with?

19 years, 4 months

Cromemco Unix?

by dm561＠torfree.net

--------------Original Message: Message: 28 Date: Thu, 1 Feb 2007 15:04:25 -0500 From: dave06a at dunfield.com Subject: Re: Cromemco Unix? >> Is there any reason of which you are aware that would prevent the >> use of Cromix on a Z-2? >I don't see why - All it needs (at least the Z80 version) is the ZPU, >enough memory (a 256KZ works nicely, or a few 64KZs I think are >OK as well) and I/O card and disk controller like 16FDC (those are >the cards that I have) - all the standard Cromemco cards would >work in a Z2 (I think I've had them all in my Z2 at one point or another, >although I don't recall if I've ever booted Cromix up on it). >Dave ------------Reply: Since they were S-100 systems and could have pretty well any cards installed, functionally the model doesn't really mean much except for the floppy size and the number of floppy drives, I/O connectors and card slots. You might have some problems with older boards. Minimum revision levels: ZPU: Any 64KZ: Rev J TU-ART:Rev E PRI: Rev E 4FDC: Rev C 16FDC: Rev E IOP: Rev C Quadart:Rev C 128K is the minimum for one user. Each additional user requires an additional 64K with a maximum of 6 users (although you could have >64 ports if you can find room for the I/O cards and connectors). Hard disk recommended for any *real* use. AFAIK Cromix came in 3 versions with numerous revisions: 11 series is for the Z80; AFAIK latest revision was 11.27 20 series is for the 68000 (slooow, use 30 if possible) 30 series (later changed to 1xx, i.e. 153=30.53) is for 68010 and higher, although at least the early versions will also run on the 68000. Note that with some exceptions and depending on the hardware, 20 and 30 series will still run Z80 programs. Also note that the 30 series has provisions to read & write PC & UNIX format diskettes. And of course the languages (BASIC, COBOL, Fortran etc.) were also updated for the newer CPUs. mike

19 years, 4 months

Are there M4 9914 9-track tape driver users on the list?

by glen.slick＠gmail.com

I acquired a couple of M4 9914 9-track tapes drives a while ago and finally got around to trying to do something useful with them. Never having used one before the first thing I did was just see if it would mount a tape ok. The first brand new tape I tried was sucked into the take-up reel ok and wound a few turns, then sucked all of the way back out, then the drive tried again before giving up with a N T U (No Take Up) error. I then tried a second brand new tape from a different vendor and got the same results. Then I went back into the garage and hefted (it's a workout) the second 9914 drive into my work area and tried both tapes on the second drive with the same result. Then I tried manually threading a tape onto the take-up reel while the drive was powered off and making sure that winding the take-up reel caused the supply reel to turn, then powered on the drive and got the same N T U error again. I looked in the manual and it said something about the N T U error occurring due to a lack of tach pulses. Then I looked at the tape path for what might be the tach sensor and guessed it was probably a metal roller near the take-up reel. I used a marker to put a dot on the top of the reel and noticed that it wasn't rotating when the tape was moving past it. I tried rotating this roller by hand and I could feel detents while rotating it and I assume it is attached to some type of rotary encoder. Now to the point posting this here, my questions are does anyone know if this roller/encoder needs any lubrication? If so, how? It felt somewhat stiff when I first tried rotating it and got a little easier to rotate the more I kept at it. And secondly, this roller did have a thin rubber coating which had turned to goo. I cleaned the goo off of the roller. If anyone else has seen this on a 9914 drive (I assume so, it was goo on both of mine) did they do anything about it? Is there a good way to re-rubber this roller? After cleaning the goo off of the tach roller and getting it to rotate a little more freely I did see it rotate when the tape was moving past it (wasn't sure if it would without the rubber) and now the 9914 will mount a tape most of the time. -Glen

19 years, 4 months

TRS-80 Model I

by alhartman＠yahoo.com

I have a HUGE softspot in my heart for the TRS-80 Model I, having purchased a 16k, Level I unit in December of 1978. A unit, I still own today, I hated the keyboard too, even though I wasn't a typist, mostly because it bounced and I had to load a special keyboard de-bounce program to stop it from bouncing and getting duplicate keystrokes. As I upgraded the unit over the years into a 48k Level II unit with several disk drives and a Percom (and later LNW) Doubler, I also upgraded the keyboard. I was able to purchase through Tandy National Parts, the Model III style keyboard that came out on the Model I towards the end of it's run. This also had the added benefit of adding a keypad to the unit. As to the plastic of the case, I guess in retrospect it was cheesy. But, being a kid at the time... It never bothered me. It was certainly no less cheesy than an Apple II or a VIC 20 or an Atari 400/800. Some of the TRS-80 clones got it right I think... The LNW-80 (of which I'm a proud recent owner) and the Lobo Max-80 did a good job of making the computer less toy-like and more business like. The PMC-80 from Dick Smith seemed even more fragile and toy-like, however. As to the hardware design being none too exciting. I wouldn't know, not being a hardware guy at that level. Though, we had used the Dennis Bathory Kitsz book to hop up my Model I with LowerCase, Internal Speaker, Internal Alpha-Compatible Joystick Interface, High Speed (turbo) mod with tri-color LED to indicate Low, High, and Auto (High on most things, low on Cassette and Floppy access). Also, external reset button and composite video for an amber monitor. Computers were fun in those days. I remember applying the zaps from 80-Microcomputing to a copy of Newdos 2.1 to speed up the disk stepping and amazing the salesman at my local Radio Shack at how much faster I could make their Model I boot up. Those were the days... Al Phila, PA

19 years, 4 months

Apple ][ vs.TRS-80

by alhartman＠yahoo.com

In the late 70's and early 80's I think the TRS-80 outsold the Apple II's. Mainly because there were more outlets selling TRS-80's (Radio Shack and Tandy Stores) than there were selling Apple II Computers. But, I can say as a former New Yorker, and a Computer Consultant at that time, that I saw MANY more Apple II's running VisiCalc than I did TRS-80's. The Apple II overtook the TRS-80 and by 1984 or so, the Model I/III/IV was pretty well dead and dying as a platform, while the Apple IIe and IIgs had plenty of life left in them. I loved my TRS-80, but I also lusted after an Apple IIe chock full of Applied Engineering goodies... I never did get one of those, though I have several IIgs machines and a IIc. Al Phila, PA

19 years, 4 months

RCA 1802CE Chips

by alhartman＠yahoo.com

Just to clarify: 1. These are 40pin DIP Plastic packaged Chips 2. These are CPU chips, not eproms 3. These are not free. We have to pay someone for them. I am doing someone a favor and offering them to people who would most appreciate them. These are the same chips used on the COSMAC ELF. If you are repairing an old unit, or building one of the new clones... You might want some of these. We only have a limited amount of chips. Once these are gone, I can't get any more. Al

19 years, 4 months

Foonly

by phil＠ultimate.com

Brad Parker <brad at heeltoe.com> wrote: > ... has anyone written an emulator for a VS60? > would it be hard? Doug Gwyn took my crappy VT11 simulation and extended it to within episilon of passing all the VS60 diagnostics. For a start see: http://www.ultimate.com/phil/xy/ Which shows screen shots of PDP-1 "munching squares" and "spacewar" on a simulated "Type 30" display, one of PDP-11 Lunar Lander... Sources are available thru my CVS server, tho I can't be sure I have checked in Doug's very latest (the vt11.c file in CVS is dated October 2005). We never managed to get it integrated into SIMH distributions, and I don't know off hand the last version of SIMH it did build with. The "display.tar.gz" on the web page is from October 2003(!), and I see there is a source kit named at http://www.ultimate.com/phil/xy/kit2.zip from February 2004. I did a rather "basic" (or "crude" to be less generous) graphics adaptation layer for X11 (polled) and Win32 (starts a seperate thread for message handling). John Dundas contributed an implementation of it for "Carbon" under OSX. There have been several other attempts to add graphics of various sorts to SIMH, including VAXstation style raster display support. John (Dundas) went on to build do PDP-11 front pannel blinklights und switches for SIMH, looks like it's available at: http://dundas-mac.caltech.edu/~dundas/retro/simh/index.html Which says it includes Doug's and my work (in V0.9 or later). But, back to the original topic, I think SUDS needs a PDP-10 (TOPS-20?) system behind it to do the real work. I used to pass the PDP-10 hardware design lab on the way to the Cafeteria at MR-1 (DEC Marlboro(ugh) building one, before the great three letterization that made it into MRO-1). I loved the "rose" program I saw sometimes on the displays, but I don't remember what it looked like anymore... Anyone have the code, or remember what it did? phil

19 years, 4 months

groovy book on eBay - Interfacing to the IBM Personal Computer

by chrism3667＠yahoo.com

http://cgi.ebay.com/Interfacing-to-the-IBM-PC-L-C-Eggebrecht-1983-Exc_W0QQi… Z200074563841QQihZ010QQcategoryZ378QQrdZ1QQcmdZViewItem ____________________________________________________________________________________ Sucker-punch spam with award-winning protection. Try the free Yahoo! Mail Beta. http://advision.webevents.yahoo.com/mailbeta/features_spam.html

19 years, 4 months

VS60's

by aek＠bitsavers.org

> Umm, and how rare are VS60s these days? Essentially unobtainium. They were expensive and rare 25 years ago. You'd have better luck finding a VT11 or GT40. At least I KNOW people who have those. I've never known anyone in the 30+ years of dealing with DEC stuff who had a VS60. I've been chasing a copy of SUDS for a while. It existed at Stanford, MIT, and DEC. XKL still uses it. The DEC version will probably be somewhere on the DEC LCG tapes. There are bits of it on the ITS tapes that have been released. I'm sure it's on the ones that haven't.

19 years, 4 months

Cromemco Unix?

by aek＠bitsavers.org

> I have the Z-80 Cromix running on one of my System-3's, and yes > I have install disk images up on my site. I got to meet the original author a few weeks ago. It started out as a personal project of his, and morphed into a product.

19 years, 4 months

HP tape drive PCBs

by dm561＠torfree.net

Cleaning out more junk; found some HP boards, probably >from a tape drive; anybody want 'em for parts? Condition unknown, one marked defective: 07970-62140 series 1144 07970-60020 series 1047 07970-60040 C-1024-42 07970-61021 B-1037-42 mike

19 years, 4 months

craigslist roundup

by legalize＠xmission.com

Sacramento: Wyse WY-100 terminal $10 <http://sacramento.craigslist.org/sys/267294791.html> -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 4 months

Foonly

by aek＠bitsavers.org

> Where did the name "Foonly" come from? google "FOO NLI"

19 years, 4 months

DATA General Stuff

by mdoyle＠printersupport.net

Hi, I am looking for a couple of data general 5220 crt`s can you assist Thanks Mike Doyle Printer Support Corp 508-665-6000

19 years, 4 months

Cromemco Unix?

by dm561＠torfree.net

----------------Original Message: Date: Wed, 31 Jan 2007 19:14:16 -0800 From: Gene Buckle <geneb at simpits.com> Subject: Cromemco Unix? To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Odd Cromemco system: http://cgi.ebay.com/CROMEMCO-SUPER-MICROCOMPUTER-VINTAGE_W0QQcmdZViewItemQQ… I've never seen this machine before. I had no idea Cromemco was into Unix. g. ---------------Reply: Nothing odd about it; they'd had Cromix, a sort-of-UNIX available on their Z80 and 68000 systems since around 1980, but by the mid-80s they finally cried uncle and made UNIX systems available with the x20 series, essentially the same S-100 boxes as the older ones, i.e. a 120 was essentially an upgraded System 1, a 220 an upgraded CS-2 (Z-2) and the 320 was the System 3 (8" FD), all with slightly changed styling, a 68010 or 68020 with a 68881, minimum 2MB, minimum 9 ports and an external DC600 tape drive. They also brought out a new CS-400/420 tower version with the tape drive built in. The x00 series were essentially the same systems but running Cromix, although since they were S-100 systems you could put whatever cards you wanted into them and run whatever you wanted, even CP/M or CDOS (their CP/M clone), although with the later CPU boards without a Z80 those programs ran on the Z80 in the I/O processor. I believe there was also a 4000 Mammoth running parallel 68030s on the VME bus, although I don't have one and have never even seen one. I've got two of the 420s sitting on my verandah gathering snow; wonder what the cold'll do to the infamous rollers in the tape drives... I could dig out some old price lists if anyone's interested in the available models. mike

19 years, 4 months

MCA RAID card, Vaxstation, Sun SCSI boxes: free to a good London home

by david＠cantrell.org.uk

I'm having a clear-out of a load of old stuff that I'm no longer using (or in some cases acquired and never used). Of interest to this list: * MCA SCSI RAID card, Mylex DAC960M, known working about four years ago. no driver disks, no box, no anti-static bag, no cables, no nothing. * VAXstation 3100, not powered on since I acquired it. external SCSI cable. * miscellaneous Sun external SCSI boxes which might even have working disks in 'em. All free to good homes. New owner to collect in south London, or I can deliver the MCA card in central London. I won't ship anything. If you want any of it, please contact me by private email. Anything not gone by the end of the month will be thrown away. And somewhat off-topic, if anyone knows where I can get a DVI-to-SCART converter so I can attach a Mac Mini to a TV, do please let me know. -- David Cantrell | http://www.cantrell.org.uk/david fdisk format reinstall, doo-dah, doo-dah; fdisk format reinstall, it's the Windows way

19 years, 4 months

Cromemco Unix?

by g-wright＠att.net

-------------- Original message ---------------------- From: Gene Buckle <geneb at simpits.com> > Odd Cromemco system: > > http://cgi.ebay.com/CROMEMCO-SUPER-MICROCOMPUTER-VINTAGE_W0QQcmdZViewItemQQ… > oryZ56084QQihZ010QQitemZ200074941857QQrdZ1 > > I've never seen this machine before. I had no idea Cromemco was into Unix. > > g. > > Yes, they did have sys V in the later years. I have both Cromix and system V systems here. Jerry Jerry Wright JLC inc g-wright at att.net

19 years, 4 months

shipping help, New Jersey

by drb＠msu.edu

Is there anyone near Fairfield, New Jersey who would be willing to palletize three lowboy computer cabinets and several boxes of docs and media onto two pallets and optionally drive them to a nearby truck freight terminal? I'm willing to compensate for your time. Thanks, De

19 years, 4 months

Book publishers

by vp＠drexel.edu

>It's all in how and who you ask. [...] yes you are right. I was lucky to talk with the right person in BYTE when I asked for permission to put up on the www.series80.org web site the BYTE review of the HP-85. The person was very polite and helpful and I got the permission with a minimum of hassle. **vp

19 years, 4 months

PDP-11/70 in Yates Center, KS

by bqt＠softjar.se

ard at p850ug1.demon.co.uk (Tony Duell) wrote: >>> "William Donzelli" <wdonzelli at gmail.com> wrote: >>> > Jim Willing was one of the pioneers in this computer collecting hobby >>> > (I apply pioneers to those of us that were doing this seriously over >>> > ten years ago - before this list, and before there even was a hobby). >>> >>> Cool! I'm a pioneer, having collected these things for close to 25 years. > > Even longer than me. I started in May 1986 (yes, it'll soon be 21 years > of computer collecting here ;-)) Started playing with a PDP-11/40 in 1982 or 1983 in a computer club at that time. We also had some other very odd hardware that we tried to get working and had fun with. No software, but we had a few peripherials, so we had to write our own monitor just using the front panel. And of course we had all the drawings for the machine. And we were always trying to get someone to donate more stuff to us. And of course, my school at the time used a PDP-11/70, and at nights I was hanging out at the nearby university, where they had a whole bunch of DEC-10 machines on which I could get guest accounts. By 1986 I got my first two PDP-8 systems home. Almost wish I was back in those days. So much fun. And some really odd hardware was still around and possible to get your hands on... I wonder what happened to the VT05 terminals that we managed to get, and that I hacked to get rid of the margin bell... :-) >>> Well, I'm not sure I would call it collecting in the normal sense of the >>> word. I want to keep these machines running, useable, and in use. > > Just like me again. I keep on saying at HPCC that I am not an HP > calculator collector. Yes, I have old HP calculators (handhelds and > desktops), but I use them. I keep them operational, I do program them, I > do use them for calculators. And I don't try to obtain every cosmetic > version (that is, with differnt position of the serial number label, > etc), but I am interested in at least seeing versions with substantially > different internals (like the 2 very different logic boards that were used in the HP80 financial calculator). Still have my HP-41 around, and it's still my all time favourite. I must admit I have collcted some odd hardware for it over the years that I don't really use much though... But it's a rather hacked CX with modules built into it, and some nice stuff around. :-) > No, I am not intersted in having machines on the shelf in original > condition. I want to be able to sue them, investigate them, and so on. We think alike. :-) Johnny

19 years, 4 months

Jules Richardson on arty computers

by c.murray.mccullough＠gmail.com

I quite agree some classic computers have an internal beauty but some have an external beauty that is almost art-like. My vote goes to the Coleco ADAM as it's beauty lies both in its internal/external construction. What is deeper than that I'm not sure...! Happy computing! Murray :)

19 years, 4 months

Looking for Intel SDK-51/MCS-51 System Design Kit User's Guide / Assembly Manual / Monitor Listing

by glen.slick＠gmail.com

Does anyone have hard copies or scans of these Intel SDK-51/MCS-51 manuals? 121588-002 SDK-51/MCS-51 System Design Kit User's Guide 121589-002 SDK-51 MCS-51 System Design Kit Assembly Manual 121590-003 SDK-51 Monitor Listing Manual

19 years, 4 months

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