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

by yoda＠isr.ist.utl.pt

Hi. Are there any repositories on the net containing ancient software? For instance, tape dumps of very old UNIX versions, or Symbolics LISP system. Is anyone collecting this kind of stuff in elecronic form? Cheers, -- *** Rodrigo Martins de Matos Ventura <yoda(a)isr.ist.utl.pt> *** Web page: http://www.isr.ist.utl.pt/~yoda *** Teaching Assistant and MSc Student at ISR: *** Instituto de Sistemas e Robotica, Polo de Lisboa *** Instituto Superior Tecnico, Lisboa, PORTUGAL *** PGP fingerprint = 0119 AD13 9EEE 264A 3F10 31D3 89B3 C6C4 60C6 4585

26 years, 2 months

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RCA 1861, NTSC and a DEC VR-201

by mtapley＠swri.edu

ethan said: >Yellow-Purple-Gold-Gold resistor, then tied to ground via >a Grey-Red-Black-Gold (might be Sky Blue-Red-Black-Gold) and then through one >of the rear pots. I would spec the values, but I'm not used to such odd >colors >in the significant digits of resistors (just as tolerance bands). Would a >EE care to translate these? Might that second one be 92 Ohms? Could the >first one be 7.5 Ohms? Puzzles me too. Silver 1e-2 Gold 1e-1 1 Black 1e0 First 2 digits give mantissa, 2 Brown 1e1 3rd digit gives exponent, 3 Red 1e2 4th band gives quality of resistor (if present), else +/- 20% 4 Orange 1e3 (silver = +/- 10%, gold= +/- 5%, red = +/- 2%) 5 Yellow 1e4 5th band (if present) gives reliability (mil-spec, etc.) 6 Green 1e5 7 Blue 1e6 Example: red-yellow-orange-gold = 2,4,10^3, 5% = 24k Ohm, 5% 8 Violet 1e7 9 Gray (From Horowitz & Hill, The Art of Electronics, 1st Edition 0 White pp. 645-646) No I'm not an EE but with Horowitz and Hill *anyone* can play an EE on TV, so here's my guess: Yellow-Purple-Gold-Gold : 5 8 1e-1 5% = 5.8 +/- 0.29 Ohms Grey-Red-Black-Gold : Confederate Oil-filled resistor :-) ok, ok.... 9 3 1e0 5% = 93 +/- 4.65 Ohms Ok, if a *real* EE hasn't already appeared, please do so and set me straight. - Mark

26 years, 2 months

3
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RCA 1861, NTSC and a DEC VR-201

by pete＠dunnington.u-net.com

On Sep 29, 19:02, Ethan Dicks wrote: > Pin 12 appears to be video. It goes off under the connector, through a 0 Ohm > jumper, across a Yellow-Purple-Gold-Gold resistor, then tied to ground via > a Grey-Red-Black-Gold (might be Sky Blue-Red-Black-Gold) and then through one > of the rear pots. I would spec the values, but I'm not used to such odd colors > in the significant digits of resistors (just as tolerance bands). Would a > EE care to translate these? Might that second one be 92 Ohms? Could the > first one be 7.5 Ohms? Yellow-Purple-Gold-Gold = 4.7 ohms 5% tolerance Grey-Red-Black-Gold = 82 ohms 5% tolerance Blue-Red-Black-Gold = 62 ohms 5% tolerance The last is rather unlikely, since it's not an E12 or even E24 preferred value. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 2 months

2
1
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Commodore favourite pre-Windows system

by SUPRDAVE＠aol.com

In a message dated 9/30/99 9:54:17 AM US Eastern Standard Time, kh240463(a)stmail.staffs.ac.uk writes: > There's a poll at www.windrivers.com on what is your > favorite "pre-windows" system. At present the Commodore > 8-bits are in first place with the Amiga in second. > those numbers have got to be bogus. probably some shills involved. there were way more apple ][ series computers made than amigas, yet the numbers are really skewed...

26 years, 2 months

3
2
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New Collector - Pointers to Sources

by oblende＠bgnet.bgsu.edu

>>Visit: www.accsys-corp.com > >I think most of us are looking for PDP-8's, I know I'd love one for my >collection :^) At BGSU's Firelands campus there's a PDP-8/e just sitting in the electronics lab. None of the instructors that work there with the execption of Dr. Adams has ever seen it run, I did ask them if they would be willing to part with it but they said no. (Darn!) But I think its because Dr. Adams has some sort of atachment to it.

26 years, 2 months

5
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HP 7595A DraftMaster I Plotter

by Philip.Belben＠powertech.co.uk

Nasos wrote: > This must be thrown out very soon. > Anybody that wants this please contact me to arrange shipping or picking up > from London, UK. > Very big and heavy item. > It seems to be OK mechanically, but rubbish comes up on LCD screen. Maybe a > faulty chip. Anyone know which chip this is and have a spare to possibly > get this back in full working order? > Otherwise, it gets thrown in the skip! No, I don't have anywhere to put it. Nor do I know what the electronics are like. But... Yes please, I (probably) want it. I'll come and fetch it some time soon - how long can it wait? (my next definite London trip is end October). But, what size paper does it use? Philip. ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. Power Technology Centre, Ratcliffe-on-Soar, Nottingham, NG11 0EE, UK Tel: +44 (0)115 936 2000 http://www.powertech.co.uk **********************************************************************

26 years, 2 months

4
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floppy controller IC (was Re: Fixing a PET?)

by edick＠idcomm.com

Without beating this dead horse too much more, I'd like to add a couple of things to the mix. (1) I've successfully formatted DSDD diskettes to 1.2MB DSHD format. I have also formatted DSHD diskettes to DSDD 40-track and 80-track formats, with varying degrees of success, depending on how carefully I tracked WHERE they had been formatted. (2) This gives rise to at least two other points which probably need to be stirred into the mix. (a) The drive in which the diskette was formatted determines what kind of drive will read/write it successfully. Formatting as DSHD must take place in a 1.2MB drive. If the lower density is to be used successfully, care must be taken to ensure that the disketted is never written in a DSDD drive, as the heads are different and the DSHD drive can't erase enough of what the DSDD drive's heads have written to be completely successful all the time. (b) WHEN the diskette was made seems to make a great deal of difference as to whether this (item #1, above) will work, i.e. whether the DSDD diskettes will format to DSHD with whatever massaging is required. Eric's comments about the emulsion placed on the media is quite correct. At some point, however, it became economically expedient to use the same emulsion in all of their (the diskette-makers') products as opposed to producing two different emulsions. That led to another period during which the bin-sorting provided a market for lots which were only slightly less "perfect" than their standards demanded, and these were then used, together with whatever completely adequate lots were necessary to meet the demand for DSDD media. The "perfect" lots of stock were punched and labeled DSHD. Clearly, a goodly portion of the time, DSDD media were sold which were completely adequate to meet DSHD requirements. Since the DYSAN folks in Luisville, CO, who were once a customer of mine, practiced this in fixed disk media, I doubt it was done any differently with floppy media . . . perhaps not, but it makes sense. Dick -----Original Message----- From: Eric Smith <eric(a)brouhaha.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, September 30, 1999 4:08 AM Subject: Re: floppy controller IC (was Re: Fixing a PET?) >Glen wrote: >> BTW my understanding is that all 5.25 diskettes made today are bin-sorted -- >> that is, they shoot for DSHD and the fallouts are sold as DSDD. > >I don't believe that for an instant. > >High-density requires a different, higher-coercivity coating, which will >not work properly for low density (single or double). > >However, there's no difference between double density 40 track and 80 track >disks. They aren't even binned; they just get labelled differently. >

26 years, 2 months

3
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Commodore favourite pre-Windows system

by Philip.Belben＠pgen.com

> In a message dated 9/30/99 9:54:17 AM US Eastern Standard Time, > kh240463(a)stmail.staffs.ac.uk writes: > >> There's a poll at www.windrivers.com on what is your >> favorite "pre-windows" system. At present the Commodore >> 8-bits are in first place with the Amiga in second. >> > those numbers have got to be bogus. probably some shills involved. there were > way more apple ][ series computers made than amigas, yet the numbers are > really skewed... Well, only four or five kilofolk have actually voted so far. One source of skew could be that former Apple II people are probably less likely to be using a Windows-95-oriented web site than former Amiga people. Another could be that Amiga is more recent, and many voters might be too young to have had a real appreciation of Apple II. FWIW, I considered voting for PET - the system I grew up with - but went for Other instead (I really like the Tek 4050 series). Philip. PS For the record, I wouldn't have visited the site at all had it not been mentioned here. This E-mail message is private and confidential and should only be read by those to whom it is addressed. If you are not the intended recipient, you are hereby notified that any dissemination, distribution, copying, reproduction, modification or publication of this communication is strictly prohibited. Please delete the message from your computer and destroy any copies. This message is not intended to be relied upon by any person without subsequent written confirmation of its contents. This company therefore disclaims all responsibility and accepts no liability of any kind which may arise from any person acting, or refraining from acting, upon the contents of the message without having had subsequent written confirmation. If you have received this communication in error, or if any problems occur in transmission please notify us immediately by telephone on +44 (0)2476 425474

26 years, 2 months

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RCA 1861, NTSC and a DEC VR-201

by Philip.Belben＠powertech.co.uk

I think this thread is getting old, but as an EE I think I'd better set this one straight... >>Yellow-Purple-Gold-Gold resistor, then tied to ground via >>a Grey-Red-Black-Gold (might be Sky Blue-Red-Black-Gold) and then through one >>of the rear pots. I would spec the values, but I'm not used to such odd >>colors >>in the significant digits of resistors (just as tolerance bands). Would a >>EE care to translate these? Might that second one be 92 Ohms? Could the >>first one be 7.5 Ohms? > > Puzzles me too. > > Silver 1e-2 > Gold 1e-1 > 1 Black 1e0 First 2 digits give mantissa, > 2 Brown 1e1 3rd digit gives exponent, > 3 Red 1e2 4th band gives quality of resistor (if present), else +/- 20% > 4 Orange 1e3 (silver = +/- 10%, gold= +/- 5%, red = +/- 2%) > 5 Yellow 1e4 5th band (if present) gives reliability (mil-spec, etc.) > 6 Green 1e5 > 7 Blue 1e6 Example: red-yellow-orange-gold = 2,4,10^3, 5% = 24k Ohm, 5% > 8 Violet 1e7 > 9 Gray (From Horowitz & Hill, The Art of Electronics, 1st Edition > 0 White pp. 645-646) Ouch! No, black is zero, brown is one, up to white which is nine. The values in the mantissa correspond then with those in the exponent. Yellow-purple-gold-gold = 4.7 ohms as someone (Pete?) has already pointed out. Grey-red-black-gold = 82 ohms Blue-red-black-gold = 62 ohms All are standard values, though 62 is less common being an E24 rather than an E12 value (i.e. only used if you're sorting resistors into 24 values per decade, not if you're sorting into 12) I would guess that 82 ohms in parallel with the resistance of the pot (which probably is wired as a potential divider) gives about 70 ohms, so the 4.7 makes it up to 75, and doesn't let you connect the (presumably sensitive) circuit on the input directly to the pin. This would imply a pot with resistance 470 or 500 ohms. Philip. ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. Power Technology Centre, Ratcliffe-on-Soar, Nottingham, NG11 0EE, UK Tel: +44 (0)115 936 2000 http://www.powertech.co.uk **********************************************************************

26 years, 2 months

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HI! Im new to the list...

by ToddJ＠symresources.com

Thanks! I think I may have some information on the Kay Pro company. A friend of my grand fathers gave me lots of computer equipment when I was about 15 years old. One of the things he gave me was a KayPro II, the one with the two floppy drives and the Hercules monochromatic screen. I told him I liked Kay Pro because of our old 8088 KayPro PC-10 I think it was.. (had an NEC-V20 processor and the usual XT stuff). He said that the owner of the company, after slowly losing profits, disbanded the company. He said that he formed a new company making CB Radios under a different name. I do not remember the name of the company though. Todd, 1987 Pontiac Fiero SE / V6 1985 Pontiac Fiero GT 1984 Pontiac Fiero 2m4 1982 Pontiac TransAm V8 -----Original Message----- From: Jim [mailto:DD950@prodigy.net] Sent: Monday, September 27, 1999 7:18 PM To: Discussion re-collecting of classic computers Subject: Re: HI! Im new to the list... -----Original Message----- From: Todd Jaspers <ToddJ(a)symresources.com> > Hi, im new to the list, I don't know how busy this list is, but if >it's anything like the Fiero list.. there should be at least 100 emails a >day Only 100 or so postings a day huh? Well you will soon get used to the increased volume of email on this list. :-) Welcome to the list. I and the other three people here besides myself that are interested in KayPro welcome you. I threw my 2X-84 away in 1995. Wish I would have kept it. They are selling on eBay now for $35-40. :-) I have thought of trying to collect some information on KayPro and make a dedicated Web page. Problem is I do not have any material or knowledge of the company and can't find any here in the boonies. A short time ago I remarked how the Coleco Adam still had venders, User Groups, and many Web pages while the KayPro has almost disappeared. Welcome Aboard, oh, it is your turn to buy the next round, :-) Regards, Jim Rossbach, Tonkin Gulf Yacht Club Web Ring, www.TonkinYachts.cjb.net The astonishing thing was that the newsperson managed to say "Authorities *suspect* alcohol was involved" with a straight face.

26 years, 2 months

7
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AT&T PC 6300 Plus Unix box

by Glenatacme＠aol.com

In a message dated 09/29/1999 5:16:59 PM Eastern Daylight Time, yakowenk(a)cs.unc.edu writes: > Yesterday I scooped an AT&T PC 6300 Unix machine on its way > to the dumpster. Got it home, powered it up, and now I know > why. It displays "Parity error on system board" and locks > up. > It seems to have 1MB of RAM, half socketed (36 81256's). > So I yanked the socketed chips, and tried again. Then > it did almost the same thing, but displayed a running > count up to 512K before that parity message. Does this box have a BIOS setup program onboard or must you use a configuration disk? (if so do you have the disk?) I'd try turning off the parity check on the unlikely chance that the parity check itself is loopy . . . other than that, you've got a _lot_ of soldering to do ;>) BTW ISTR that one of our "customers" abandoned a 6300 in lieu of having it repaired. Contact me off-list if you're interested & I'll dig it out of the back room and check it out again. Regards, Glen Goodwin 0/0

26 years, 2 months

3
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RCA 1861, NTSC and a DEC VR-201

by Philip.Belben＠powertech.co.uk

>> Pin 12 appears to be video. It goes off under the connector, through a 0 > Ohm >> jumper, across a Yellow-Purple-Gold-Gold resistor, then tied to ground > via >> a Grey-Red-Black-Gold (might be Sky Blue-Red-Black-Gold) and then through > one >> of the rear pots. I would spec the values, but I'm not used to such odd > colors >> in the significant digits of resistors (just as tolerance bands). Would > a >> EE care to translate these? Might that second one be 92 Ohms? Could the >> first one be 7.5 Ohms? > > Yellow-Purple-Gold-Gold = 4.7 ohms 5% tolerance > Grey-Red-Black-Gold = 82 ohms 5% tolerance > Blue-Red-Black-Gold = 62 ohms 5% tolerance > > The last is rather unlikely, since it's not an E12 or even E24 preferred > value. Are you sure, Pete? 62 ohms has always been an E24 preferred value in every list I've seen. I've even seen a 62 ohm resistor with a silver (10%) tolerance band... Philip. ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept for the presence of computer viruses. Power Technology Centre, Ratcliffe-on-Soar, Nottingham, NG11 0EE, UK Tel: +44 (0)115 936 2000 http://www.powertech.co.uk **********************************************************************

26 years, 2 months

1
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AT&T PC 6300 Plus Unix box

by yakowenk＠cs.unc.edu

Hey all, Yesterday I scooped an AT&T PC 6300 Unix machine on its way to the dumpster. Got it home, powered it up, and now I know why. It displays "Parity error on system board" and locks up. Actually, it displayed a bit more: Resident Diagnostics Ver 2.05P CPU (i286) PASS ROM Module PASS DMA Timer PASS DMA Control PASS Interrupts PASS Parity error on system board It seems to have 1MB of RAM, half socketed (36 81256's). So I yanked the socketed chips, and tried again. Then it did almost the same thing, but displayed a running count up to 512K before that parity message. So, what's next? I'm guessing that at least one of the socketed chips was bad, because it got farther before barfing when they were removed. But there is some other problem too, maybe in the soldered-in RAM chips, or maybe in the parity-check circuit itself. Anybody got a service manual or schematics or a big pile of clues for this thing? Cheers, Bill.

26 years, 2 months

5
5
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Vt340 manual?

by cmcmanis＠mcmanis.com

Does anyone have an extra VT340 manual available for trade? I've got a the VT100 docs I can trade (or some PDP 11/70 docs) --Chuck

26 years, 2 months

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VT340 help

by cmcmanis＠freegate.com

Hello, I am trying to connect a VT340 (A version, still looking for a G2!) up as the console on my VAX3800 in the BA213. What I need to figure out are the setup controls to do this. I have an DEC MMJ-MMJ cable, which if I connect from the console port MMJ connector to the VT340 COMM1 MMJ connector, it does not seem to work. If I use the same cable and connect it to the MMJ to Female DB25 connector and plug that into the RS232 port of the 340 it does work. I've tried setup where it says "comm type" and changed it from RS-232 to DEC-423 but that didn't have the expected effect. Clues anyone? Do I need a special MMJ "null modem" type cable or something? --Chuck

26 years, 2 months

2
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ibm 5151 available

by jritorto＠nut.net

Anyone intersted in an ibm 5151? it's in olathe, ks. get back to me if you want it... jake

26 years, 2 months

1
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Kaypro Computer History

by allisonp＠world.std.com

< Phil Clayton <philclayton(a)mindspring.com> wrote: < < > Kaypro Computer and Non-Linear Systems Kaypro was spun off to keep NLS as test equipment and Kaypro as computers. This was to keep the brand identification that NLS had aquired for many years doing counters, DMM and later O'scopes. I have a MS15 portabel scope that predates Kaypro computers by easily 10 years. Allison

26 years, 2 months

1
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imaging silliness: can *YOU* id everything?

by dogas＠leading.net

That blue/blue pet's serial # is 0013854 if that explains it... - Mike: dogas(a)leading.net -----Original Message----- From: Chandra Bajpai <cbajpai(a)mediaone.net> >It's on of the first PET 2001s...8K Static RAM (1977) >From: CLASSICCMP-owner(a)u.washington.edu >Just curious, the Pet... > http://users.leading.net/~dogas/pet.jpg >

26 years, 2 months

1
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Lisa ROMs?

by Marion.Bates＠Dartmouth.EDU

A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 207 bytes Desc: not available Url : http://www.classiccmp.org/pipermail/cctalk/attachments/19990929/f761d089/at…

26 years, 2 months

3
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GoOS (was Re: imaging silliness: can *YOU* id everything?)

by max82＠surfree.com

>IBM ThinkPad (with Go >OS), Leading Edge Model D. Seeking: Apple Lisa, Kim-1 What's GoOS and what is your impression of it?

26 years, 2 months

1
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Making Osborne 1 boot disks

by jolminkh＠nsw.bigpond.net.au

I have finally got an Osborne 1 with SSDD drives to add to my others that have SSSD drives. Now I have finally been able to boot an O1 with a SSDD boot image courtesy of Don Maslin. I have been unable to make SSSD disks on a PC. Is there any way I can now make one with the SSDD Osborne? Thanks, Hans

26 years, 2 months

4
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Kaypro Computer History

by DD950＠prodigy.net

Here is an article on the disposition of some KayPro property in 1995: http://www.sddt.com/files/library/oldbriefs/00000069.html Former Kaypro Property Sells For $2.7 Million - Tue 24-Jan-1995 I am enjoying reading and saving all the KayPro info for our Web page. I hope you fellows don't mind your posts being posted again on a Web site? I do need some of you proud KayPro owners to scan some of the books and send me the KayPro Logo for the page atleast. Please send all the photos of KayPro you can! Regards, Jim DD950(a)prodigy.net "I'd hate to think we're seriously hampering the productivity of America. But, on the other hand, what the heck!" ( Computer game magnate Les Crane, "Time" )

26 years, 2 months

2
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RCA 1861, NTSC and a DEC VR-201

by allisonp＠world.std.com

<You could try an emitter follower (but you'd have to arrange suitable <supply rails, since you've got a video signal that goes above and below <ground. Or an Elantec EL2001 (ditto about the supply rails). Are you sure <the video signal really goes -ve wrt ground ? (anyone want to <confirm/deny this?) the signals do not go below ground. They are driven from pin 6 on the 1861 <sync> through 3.3k to junction of another resitor 1k from pin 7 <video> and then are tied to a resistor 200ohm to ground the composite video comes >from the junction of the three. The 1861 is powered by +5v so it's not below ground referenced. An emitter follower would work but, there is the little problem of the .6-.7V offset <Vbe> that has to be taken care of. Pulling that juntion positive with a resistor in the range of 680-1600 ohms may satisfy that. Allison

26 years, 2 months

2
1
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Zilog Z80-MCB

by pete＠dunnington.u-net.com

While rooting around in some Z80 stuff today, I found a couple of Zilog boards, a little less than 8" square, with 62-pin edge connectors. One (the silk-screen says Z80-MCB) is obviously a processor+RAM+ROM+I/O board, and the other (the silk-screen says MDC2) some kind of RAM board. I'm looking for any other useful information. Here's what's on them: Z80-MCB: Z80, Z80-PIO, Z80-STC, AM9551, 4 empty 24-pin (ROM?) sockets, 8 x 446, a couple of small (MMI 6306) PROMs, assorted TTL, 4-way DIP switch, a 16-pin and an 8-pin socket with jumper blocks labelled "VDU", a pair of 16-pin sockets with unlabelled jumper blocks, 19.6608MHz crystal. In the top right corner there's a single-inline 7-way socket (looks like half of a 14-pin DIL socket). Two positions, J6 (8-pin) and J2 (16-pin) are empty. The MDC2 board has a Z80-PIO, 3 banks of 8 x 4116, what appear to be a couple of bipolar PROMs (one label is illegible, the other says "33-0053-16"), and assorted TTL. Both boards have a round red device that could be a voltage regulator on them. Any information gratefully received! -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 2 months

1
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Help with Apple II cards

by SUPRDAVE＠aol.com

In a message dated 9/29/99 3:47:37 PM US Eastern Standard Time, red(a)bears.org writes: > On Wed, 29 Sep 1999, David Williams wrote: > > > I could use help getting doc and drivers for each of the following: > > > > Sonic Blaster > > > > Info on jumper settings, drivers, etc. would receive much thanks! > > Any online sites for any of this? > > About a year ago, I bought a Sonic Blaster---new, opened box---at a > thrift. It included all documentation and software. e-mail me off list to > arrange some sort of trading of information. > > My problem is that if I plug the card into either of my IIgs machines > (ROMs rev 01 and 00), the machine hangs at boot, before it even looks at > the floppy drives. It's been a while so I can't remember the exact > behaviour. I recall trying even to set the slot it was plugged into to "my > card" but that this didn't change anything. > > Any ideas? > perhaps the downlevel rom revision could be causing your problems. I remember the upgrade to rom 03 adressed some software and possibly hardware issues. d

26 years, 2 months

1
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floppy controller IC (was Re: Fixing a PET?)

by Glenatacme＠aol.com

In a message dated 09/28/1999 5:53:47 PM Eastern Daylight Time, ard(a)p850ug1.demon.co.uk writes: > In general the older full-height 5.25" drives are pretty slow at > stepping, and may even require 30ms between pulses (some older controller > cards/OSes always used this timing 'to be safe'). Half-height drives, or > 3.5" ones tend to support faster step rates. The only way to be sure, > though, is to check the specs of the drives that you are using. Thanks again! This is valuable information for me. I've got bins full of half-height 5.25" drives here, so if worse came to worse and I had to replace the 1770 with a 1772 I'm certain I could come up with a compatible drive. Interestingly, with this system when a disk is formatted it is required that the number of TPI be input. This is then stored on the disk so I might have one 5.25 DSDD disk with 40 TPI, and another with 50. The maker of the system says that it will support drives up to 255 tracks per side, "if the drives themselves ever do." Anyway, thanks as always -- Glen Goodwin 0/0

26 years, 2 months

4
4
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Corona Data System double floppy IBM Compatible PC (fwd)

by musicman38＠mindspring.com

I Came across a Cordata XT computer at a local thrift store today, They want $25.00 for it.. I think its to much, but it is interesting in the fact the 12inch mono monitor is built into the computer case.. Its a very clean unit with the original manuals.. I did not know that they had copied the IBM BIOS in these machines.. DO you think this machine will have any collector value ? Phil.. --Original Message----- From: Marvin <marvin(a)rain.org> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Friday, September 24, 1999 11:10 AM Subject: Re: Corona Data System double floppy IBM Compatible PC (fwd) > > >Sellam Ismail wrote: >> >> The Corona Data Systems portable is a bit historic in that they copied >> the IBM PC BIOS without license from IBM and got sued out of existence. >> If anyone wants this then please contact the owner directly. > >My understanding from people that used to work at Corona Data Systems (later >changed to Cordata) was a divorce created a split in the company and >resulted in it being killed off. This is the first I have ever heard about >IBM sueing them; where did that information come from?

26 years, 2 months

3
2
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brag

by yakowenk＠cs.unc.edu

BTW, last night I got a program working on my CoCo 1 to read serial data through the bit-banger at 38400 baud. And that's without even doing the double-speed thing. Not bad for a < 1MHz machine. Bill.

26 years, 2 months

1
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Help with Apple II cards

by dlw＠trailingedge.com

A friend at work told me the Goodwill by our office had a bunch of stuff in so I went by there during lunch. Picked up an Apple II+ and an Apple //gs for $10.98. I already have several of these but really wanted the cards inside (and some spare parts). The //gs came with an Apple //gs Memory Expansion filled with 1 meg, a CMS SCSI II card and a Sonic Blaster. The II+ had an Apple Language card, Apple Serial Interface, Disk II Interface and a Saturn RAM Card with what looks to be 64K and space for 8 more chips. Now the questions.... I could use help getting doc and drivers for each of the following: CMS SCSI II Sonic Blaster Saturn RAM Card Info on jumper settings, drivers, etc. would receive much thanks! Any online sites for any of this? I'd really like to get that scsi card working on my //gs so I could finally use a hard disk with it. Thanks. ----- David Williams - Computer Packrat dlw(a)trailingedge.com http://www.trailingedge.com

26 years, 2 months

2
1
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Old main-frames & data multiplexors....

by arfonrg＠texas.net

I have come into a Teleplex box that IIRC, is used to allow time sharing onto a main-frame by several terminals... I never quite understood how this worked. I mean, how did the main-frame know to suspend the current operation and resume a previous with the use of these old multiplexors. FOND MEMORY: I remember that back in 1982, my TRS-80 Model II had a multiplexor option available to allow it to have multiple users. What can I use this thing for? A ---------------------------------------- Tired of Micro$oft??? Move up to a REAL OS... ######__ __ ____ __ __ _ __ # #####/ / / / / __ | / / / / | |/ /## ####/ / / / / / / / / / / / | /### ###/ /__ / / / / / / / /_/ / / |#### ##/____/ /_/ /_/ /_/ /_____/ /_/|_|#### # ###### ("LINUX" for those of you without fixed-width fonts) ---------------------------------------- Be a Slacker! http://www.slackware.com Slackware Mailing List: http://www.digitalslackers.net/linux/list.html

26 years, 2 months

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RCA 1861, NTSC and a DEC VR-201

by ethan_dicks＠yahoo.com

--- allisonp(a)world.std.com wrote: > low impedence inputs are used on better monitors to keep the video signal > from getting smeared by cable capacitance, (undesireable for 80 char > lines!) so they terminate the cable at 75ohms. If the drive ckt does not > have the oomph to puch that the signal will drop to nothing nad there will > be liitle if any video. So how can I soup up the output of the 1861 to drive a 75ohm input? -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

26 years, 2 months

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Ace & Security

by morrison＠t-iii.com

Worse still, on say a Unix system, you can reboot the system from your own boot floppy and bypass the security system. Neil Morrison email:morrison@t-iii.com > -----Original Message----- > From: ard(a)p850ug1.demon.co.uk [SMTP:ard@p850ug1.demon.co.uk] > Sent: Monday, September 27, 1999 12:58 PM > To: Discussion re-collecting of classic computers > Subject: Re: Ace > ------------------ > Mind you, if you've got that sort > of access, you could remove disk packs (or tapes) and read them on your > own machine. > ------------------

26 years, 2 months

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imaging silliness: can *YOU* id everything?

by Philip.Belben＠pgen.com

>> Hi all. >> >> I saw this pile at a garage sale, should I not have passed on it for $5? >> >> http://users.leading.net/~dogas/COMPOSITE.jpg > > Just curious, the Pet shows a blue label and CRT cover. Where does this one > fall in the scheme of when the Pets were released? All of mine have black > labels and CRT covers. Very early. You can tell by the commie-rebadged Sanyo tape deck, which was soon replaced by the Commodore C2N. Philip. This E-mail message is private and confidential and should only be read by those to whom it is addressed. If you are not the intended recipient, you are hereby notified that any dissemination, distribution, copying, reproduction, modification or publication of this communication is strictly prohibited. Please delete the message from your computer and destroy any copies. This message is not intended to be relied upon by any person without subsequent written confirmation of its contents. This company therefore disclaims all responsibility and accepts no liability of any kind which may arise from any person acting, or refraining from acting, upon the contents of the message without having had subsequent written confirmation. If you have received this communication in error, or if any problems occur in transmission please notify us immediately by telephone on +44 (0)2476 425474

26 years, 2 months

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Fixing a PET?

by Philip.Belben＠pgen.com

> For the 8032, you'd need a "PETSCI" chart - Commodore didn't adhere completely > to the ASCII standard coding. I have a copy of the PETSCI codes, but they're at > home, and I'm not. If anyone needs them, e-mail me and I'll be happy to send > them to you, or post them. First time PET users beware. The character codes with ASC() and CHR$() are NOT the same as the screen codes. There are two character sets. You'll probably be debugging in lower case mode, so, in numerical order of screen code, here's the lowercase set: 0-31 (Decimal) @abcdefghijklmnopqrstuvwxyz[\]^_ where ^ is up arrow and _ is left arrow. (These correspond in PETSCII to the ASCII codes for upper case and display as upper case on early PETS.) 32-63 (exactly the same as ASCII, from space to question mark. Also exactly the same as PETSCII) 64-95 The characters you get by shifting (i.e. with the shift key) the first group. Upper case for the letters, mostly vertical and horizontal lines and a diagonal cross for the others. Shift-up arrow should be a PI symbol, but in lower case mode comes out as a chequerboard. 96-127 The characters you get by shifting the second group. On later PET keyboards, the shift key didn'd work quite as on earlier PETS, so you probably can't type some of these characters. They include vertical and horizontal lines at the boundaries of the character cell, T-junctions of the various vertical and horizontal lines in the middle, half of the characters required to do lo-res graphics (four pixels to a character cell), and histogram characters. Of particular use in PET "graphics" is code 102, a 50% grey square. (Gosh, to think I still remember the code for that. But then we always called those characters "one-oh-two's" anyway). Beware code 96 which is a shifted space, and displays as a blank. 128-255 The inverse video ("reverse field") of the characters from 0 to 127 respectively (thus including, FWIW, the rest of the characters for lo-res graphics). Tips for debugging screen memory: The addresses for the screen are 32768 to 34767 inclusive, in the usual order. Deposit with POKE A,B and examine with B=PEEK(A) or more usually PRINT PEEK(A). Note that I'm used to uppercase, but all except the first PETS use lowercase for keywords when in lowercase mode. The screen editor actually reads the screen memory. So if there is a strange character there, go up to that line and edit it (you'll soon see how the INSERT key works) to read PRINT ASC("#") and press return, and it will return the PETSCII code for the character (in this example, 35, like ASCII). This does not work for inverse video, though. Also, if the contents of the screen memory are being corrupted, you won't be able to type sensible things on the command line... Hope this helps. Philip. This E-mail message is private and confidential and should only be read by those to whom it is addressed. If you are not the intended recipient, you are hereby notified that any dissemination, distribution, copying, reproduction, modification or publication of this communication is strictly prohibited. Please delete the message from your computer and destroy any copies. This message is not intended to be relied upon by any person without subsequent written confirmation of its contents. This company therefore disclaims all responsibility and accepts no liability of any kind which may arise from any person acting, or refraining from acting, upon the contents of the message without having had subsequent written confirmation. If you have received this communication in error, or if any problems occur in transmission please notify us immediately by telephone on +44 (0)2476 425474

26 years, 2 months

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imaging silliness: can *YOU* id everything?

by philclayton＠mindspring.com

Now wait a second that is a picture of my garage.. <Grin> My Commodore Pet also has a Blue screen plate, not sure if the face is blue, I think it is black.. I'll look and check the serial number, perhaps this is an earlier model.. Phil... -----Original Message----- From: Marvin <marvin(a)rain.org> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Wednesday, September 29, 1999 11:50 AM Subject: Re: imaging silliness: can *YOU* id everything? > > >Mike haas wrote: >> >> Hi all. >> >> I saw this pile at a garage sale, should I not have passed on it for $5? >> >> http://users.leading.net/~dogas/COMPOSITE.jpg > >Just curious, the Pet shows a blue label and CRT cover. Where does this one >fall in the scheme of when the Pets were released? All of mine have black >labels and CRT covers.

26 years, 2 months

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(Fwd) Kaypro II available

by dlw＠trailingedge.com

With all the talk of Kaypro around here of late, here is your chance to pick one up. This person contacted me looking for a home for their Kaypro II. Contact the person below directly. ------- Forwarded Message Follows ------- From: Sporgp(a)aol.com Date sent: Wed, 29 Sep 1999 11:26:56 EDT Subject: Kaypro Hi, I have a Kaypro II with all software in perfect working condition that I would like to sell/donate/find a useful resting place for. Are you interested, or who might be? You can email me at lyons(a)alpha.fdu.edu. Thanks, Lisa ----- David Williams - Computer Packrat dlw(a)trailingedge.com http://www.trailingedge.com

26 years, 2 months

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NLS (was: Kaypro Computer History

by rigdonj＠intellistar.net

At 10:32 PM 9/28/99 -0700, Fred asked: >Without going on e-bay, how much can I get for an NLS model 215 scope with >dead batteries? I bought mine with the leather case, charger, probes and a working battery for $80. I've seen others for lots more money but they were dreaming IMO. Joe

26 years, 2 months

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Kaypro Computer History

by ToddJ＠symresources.com

Oh DAMN!!! Is this the SAME Kay Pro as in Kay Pro computers from the 80s?! Im going to buy one!! Todd -----Original Message----- From: Hans B Pufal [mailto:hansp@digiweb.com] Sent: Wednesday, September 29, 1999 5:40 AM To: Discussion re-collecting of classic computers Subject: Re: Kaypro Computer History I haven't seen any mention of Kay Computers yet. see <html:www.kaycomputers.com/about.html>. Seems like Andy Kay is still in business. I presume his history page is definitive! Regards _---_--__-_-_----__-_----_-__-__-_-___--_-__--___-__----__--_--__-___- Hans B Pufal Comprehensive Computer Catalogue <mailto:hansp@digiweb.com> <http://digiweb.com/~hansp/ccc>

26 years, 2 months

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HI! Im new to the list. Kaypro '99..

by ToddJ＠symresources.com

I have several Jpegs of all the different Kay Pro machines made... i'll send em to you as soon as I can get it off my old Bulletin Board System... which by the way, I still run.. The Starflight BBS 954-792-7323 though my roomate and I didn't pay our phone bill on time, (as usual) and it will be down till the 30th when I get paid. Todd -----Original Message----- From: Jim [mailto:DD950@prodigy.net] Sent: Tuesday, September 28, 1999 2:43 AM To: Discussion re-collecting of classic computers Subject: Re: HI! Im new to the list. Kaypro '99.. -----Original Message----- From: Don Maslin <donm(a)cts.com> > >Perhaps the attached 'history' will help. > It helps much. Thanks for taking the time to find that history and post it. I am convinced to start my KayPro Web page now. There are plenty of free Web servers out there. I have a real soft spot for the KayPro and I sense there are a few others that do also here. Time somebody starts a dedicated Web site to honor these hard working machines. Besides, you never forget your first one! :-) If anybody has any scanned photos or can scan some sales brochures etc. , please send them to DD950(a)prodigy.net . I have nothing KayPro left here except a leather cover for the 2X-84. I paid $75 for it in 1984 and used it only to take the machine home LOL. Sure seemed like a good purchase at the time! More of the history is needed and very welcome. I think Kaypro started as a test instrument company under another name and that is were the standard "portable" cases came from for the CP/M machines. ?? Also the history of MicroPo and the rise and fall of WordStar should be included here if anybody will or has written something up. I think it is also an interesting story. This will be a group effort and perhaps we can make the Web site a bit of the home page for this mailing list with pictures of the contributors etc. Regards, ??? <-- KayPro graphics, remember them? ~ Jim Rossbach "640K ought to be enough for anybody." ( Bill Gates, 1981 )

26 years, 2 months

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HI! Im new to the list...

by ToddJ＠symresources.com

Oh my God! KayPro made a 386 Machine?! I HAVE TO HAVE IT!!!!! Todd -----Original Message----- From: Don Maslin [mailto:donm@cts.com] Sent: Tuesday, September 28, 1999 1:53 AM To: Discussion re-collecting of classic computers Subject: Re: HI! Im new to the list... On Tue, 28 Sep 1999 Glenatacme(a)aol.com wrote: > In a message dated 09/27/1999 7:58:32 PM Eastern Daylight Time, > DD950(a)prodigy.net writes: > > > Welcome to the list. I and the other three people here besides myself that > > are interested in KayPro welcome you. > > Make that four! I bought a Kaypro 10 recently (after seeking advice from > people on this list) and I like it! ________O/_______ O\ > > I have thought of trying to collect some information on KayPro and make a > > dedicated Web page. Problem is I do not have any material or knowledge of > > the company and can't find any here in the boonies. > > Don't feel bad -- I'm in the giant megalopolis of Orlando Florida and there's > no abundance of information here, either. Perhaps the attached 'history' will help. > there was very little third-party hardware sold for the Kaypro, and they were > not exactly designed to be modified (people on the list, please correct me if > I'm wrong ;>) There were a variety of third-party add-ons produced for the Kaypros, but few sold in great quantity. Likely amongst the most common was the Co-Power 88 board set which added an 8088 processor and memory to a Kaypro. The set could be used as a RAM disk (512k) or could run 'pure' MSDOS programs. It was definitely not PC compatible! - don 'History' follows: Following up on Don Maslin's reply, I've attached a message I posted last September when someone else asked a similar question about Kaypro models. If things ever calm down, I can try and write up something similar about the IBM compatible machines, ranging from the 16, 16/2, 286, 2000, 2000+, PC (many many versions, not all really made by Kaypro), PC/XL, PC-286, 386, etc. Gregory Watson gjw(a)access.digex.net Here's a rough list of the differences between the different machines. I may have missed one or two machines, I don't have my old Kaypro brochures with me (in storage), so this is all from memory. I used to work in a computer store which sold a lot of Kaypros. (I'm also limiting this to the Kaypro CP/M machines.) There were various ROM upgrades throughout this. In the beginning there was the Kaypro II (aka II'83 later). It came with 2 SS/DD full-height floppies, a 2.5 MHz Z-80, one serial port, and bundled software from Perfect Software. Introduced late 82. Next was the original Kaypro 10. It came with 1 DS/DD floppy drive, a 10 meg HD, a 4.0 MHz Z-80A, two serial ports, light pen port, rudimentary graphics, a real time clock, and software from Perfect Software and dBase II. Introduced mid-83. Then there was a Kaypro IV (aka IV'83 later). It was a II, but with DS/DD full-height floppy drives. Wordstar started being included in addition to the Perfect Software suite. Introduced in mid-83. (Same goes for the II'83, late versions included Wordstar also.) 1984 rolls around, and some changes made. The 4 (aka 4'84) is introduced. It now has two DS/DD half-height floppy drives, a Z-80A at 4.0 MHz, 2 serial ports, internal 300 baud modem, a real-time clock, rudimentary graphics. Software is from Micropro (Wordstar, Calcstar, etc.) Early 1984. The 2 (aka 2'83) is introduced. It has two SS/DD half-height floppy drives, a Z-80A at 4.0 MHz, 2 serial ports, rudimentary graphics. Software is from Micropro. Slightly later in 84. The 2X is introduced. This is closer to an old IV, or a 2 with DS/DD half-height drives. Again a Z-80A running at 4.0 MHz, 2 serial ports, rudimentary graphics, software from Micropro. Early 84. The Kaypro Robie is introduced. This is the first non-portable machine, a black desktop. This has 2 2.6 Megabyte (not a typo) floppy drives. Motherboard is basically the same as a 4, with the 300 baud modem, rough graphics, etc. (late 84?) 1985 arrives. Kaypro upgrades most of the machines to the "Universal ROM", so a boot disk for one can be used in another. The 4'84 is renamed the 2X (sometimes known as 2X MTC). Old 2X, 2'84, 4'84 are all dropped. The "New 2" is introduced. This is basically an old 2X motherboard, but with just one DS/DD floppy drive. It comes with just CP/M and Wordstar for software. (early 85?) Kaypro starts producing the II'83 again, with Perfect software as opposed to Micropro software. (early 85). The Kaypro 4X is announced. It's a Robie but in the standard portable case. I also have seen reference to the 12X, which was going to be a Kaypro 10 but with a Robie floppy drive. (I've never actually seen a 4X or a 12X. The store where I worked might have sold only one or two Robies, so it wasn't a big seller.) 1986 or so arrives. The Kaypro 1 (yes one) is introduced. It's equivalent to the old 2X, with 2 DS/DD floppies, 4.0 MHz Z-80A, 2 serial ports, etc. The floppies are vertical as opposed to horizontal. It comes with CP/M and Perfect Writer for software. At this point, Kaypro is producing just the 1, 2X MTC, 10 and Robie basically. This continued until they got out of the CP/M machines. There were also a few variations on some of these machines, such as the 4+88, which had a SWP (?) co-processor board with an 8088, 256K of memory (which could be a ramdisk under CP/M), and could run some MS/Dos software. But that's the basic list. Anyone know if I've missed anything? Gregory Watson gjw(a)access.digex.net (My parents are still holding onto our 2 II'83s, and one Kaypro 1.)

26 years, 2 months

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HI! Im new to the list...

by ToddJ＠symresources.com

My roommate has like 5 Timex Sinclairs, he has more classic computers than I do. Im the Kay Pro enthusiast though. I think the real reason why I became interested in KayPros was because of the 8088 that we bought. It was in the Summer of 1984. I was 6 years old. I can even specifically remember the old Kay Pro advertisement. They showed three models they were selling. We ended up buying the medium one. I also remember that they bragged about having an internal clock that memorizes the time after you shut it off. The one we got was the PC/10 I THINK.... NEC-V20 13Mhz Processor Herchulese Monochrome KayPro Monitor with CGA card. Huge case 20mb ST-225 RLL Hard Drive 2 Teac 360k 5.25" floppy drives AT Compatible keyboard 640k base memory 128k "Extra" memory that to this day I haven't figured out how to use. man that computer was awsome! I remember the very first REAL game that I bought for that system. My parents got it for me for christmass, it was StarFlight. A mid 80s space flight game. Next was Sentinel Worlds, and then I got all the old AD&D Gold Box Series games. We ended up getting a SVGA monitor shortly after Starflight. Guess what brand it was..??? LOGITECH!!! Thats right, my monitor was a Logitech, the mouse company!! It was a .49 pitch monitor, 14", and it weighed around 20 pounds or so. My parents paid like 1,500 bucks for the darn monitor. Todd -----Original Message----- From: Glenatacme(a)aol.com [mailto:Glenatacme@aol.com] Sent: Tuesday, September 28, 1999 12:30 AM To: Discussion re-collecting of classic computers Subject: Re: HI! Im new to the list... In a message dated 09/27/1999 7:58:32 PM Eastern Daylight Time, DD950(a)prodigy.net writes: > Welcome to the list. I and the other three people here besides myself that > are interested in KayPro welcome you. Make that four! I bought a Kaypro 10 recently (after seeking advice from people on this list) and I like it! > I threw my 2X-84 away in 1995. Wish > I would have kept it. They are selling on eBay now for $35-40. :-) Shame, shame! > I have thought of trying to collect some information on KayPro and make a > dedicated Web page. Problem is I do not have any material or knowledge of > the company and can't find any here in the boonies. Don't feel bad -- I'm in the giant megalopolis of Orlando Florida and there's no abundance of information here, either. > A short time ago I remarked how the Coleco Adam still had venders, User > Groups, and many Web pages while the KayPro has almost disappeared. Likewise with the Sinclair and Timex/Sinclair machines I collect -- there are many active user groups around the world who share software, as well as hardware groups who have made available devices such as disk drive interfaces, data transfer to/from IBM-type pcs, etc. But nothing for the Kaypro. Perhaps this is because the Kaypro computers weren't "hobbyist" computers -- they were designed and marketed as "business" machines. As far as I can tell there was very little third-party hardware sold for the Kaypro, and they were not exactly designed to be modified (people on the list, please correct me if I'm wrong ;>) Glen Goodwin 0/0

26 years, 2 months

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Sun 4/470 CPU/MEM needed

by msg＠waste.org

Greetings! We've acquired a SparcServer 470 sans CPU; we're seeking either a 501-1381 or preferrably a 501-1899 CPU board. More memory is useful too, especially 501-1721 (128MB) boards. Thanks much. Michael Grigoni Cybertheque Museum

26 years, 2 months

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floppy controller IC (was Re: Fixing a PET?)

by Glenatacme＠aol.com

In a message dated 09/28/1999 10:52:17 PM Eastern Daylight Time, zmerch(a)30below.com writes: > This is then stored on the disk so I might have > >one 5.25 DSDD disk with 40 TPI, and another with 50. The maker of the > system > >says that it will support drives up to 255 tracks per side, "if the drives > >themselves ever do." > > Now, do you mean Tracks, or Tracks per Inch? I beg your pardon -- I meant tracks per side. Glen 0/0

26 years, 2 months

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Ace & Security

by Glenatacme＠aol.com

In a message dated 09/28/1999 5:56:37 PM Eastern Daylight Time, ard(a)p850ug1.demon.co.uk writes: > Well, what if the NVRAM is one of those Dallas devices with the battery, > clock/NVRAM chip and crystal encapsulated in the same package. No easy > way to pull a jumper and clear those. This may be true in some cases, but just as a friendly FYI, I recently encountered a motherboard with the "all-in-one" device which you describe. After a lot of eyeballing and headscratching I located a "null jumper" near the Dallas device -- that is, a plastic jumper which did _not_ short the pins. Momentarily replacing this with a standard jumper did in fact discharge the CMOS. Regards, Glen Goodwin 0/0

26 years, 2 months

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Latest find & haul...Kaypro 16

by Mzthompson＠aol.com

First, a big thank you to Gregory Watson, gjw(a)access.digex.net for the history lesson on Kaypro. I look forward to the PC side. A couple of years ago I did a little contract work for the school system in the next county. It was then that I visited one of the no longer used school buildings. It had been turned into a storage shed for anything the school did not know what else to do with, including the Commodores, a couple of Kaypros, a few Lasers, & a mess IBM brand PC's, just to name a few. I had all but forgotten about it, figuring no way to pry those machines loose from the school system. It turns out that they sold the building to a someone about a year ago and he is now looking for a buyer himself. I called him and he invited me over for a look around at what computers were still left. He said that if this perspective buyer wanted the entire contents that would be the end of it. If the buyer does not want the computers then I can have what I want. I think he expects me to take it all. Most of what is there is IBM brand PC's. I did not write down model numbers and all that, just looked around as he gave me the tour of the building. These IBM's are what I would call educational machines. I know the school system is big on IBM and gets the usual educational discount. Many of the machines are just dual 3 1/2" floppy machines, with some having around 60mb hard drives in place of one floppy. I did notice that the floppy drives had a 40 pin edge connector instead of the expected 34 pin. IIRC, the hard drives had the same edge connector as the floppies. Anybody out there got any insights on these? Apparently, he had a schoolyard sale and most of the Commodores are long gone, but did see some stuff. Since I am not up on that, what should I be on the lookout for in the way of goodies? On the way out, I stopped to admire one machine. He said that I could have it if I wanted it. A token I guess. We had to go to the next floor and the other end of the building to find its keyboard. Just as we got back to the machine, he commented that he never could find the cover for it. This just as I was snapping the keyboard back in place. So I now have a working Kaypro 16, complete with OS, namely DOS 2.1. I had the cover off briefly, enough to realize that it appears you have to dismantle the thing to put a board in an expansion slot. In the expansion slots are a a modem & what I assume is a secondary video board with 9 pin D female connector and RCA jack. Another card with a 25 pin D and a 9 pin D, both female, parallel and serial I assume. The fourth card has no I/O connectors, so not sure until I can get at it. One thing I would like to do to this is to put in a battery and clock chip. I have long since forgotten what was available then. Any suggestions? I won't know until mid-October if the buyer wants the computers or not. The way I figure it, they probably won't want them. Face it, if they are not a subscriber to this list, then they are not nuts enough to consider what I am consdiering, right? ;-)) Then there is the issue of where do I store 100 or so machines, at least long enough to sort it all out. Mike Thompson

26 years, 2 months

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COMPUTER BILLIES

by rigdonj＠intellistar.net

Hi Gang, This is OT but too good to miss. Joe >Subject: COMPUTER BILLIES > >THE ENGINEER SONG >>>(SUNG TO THE TUNE OF >THE BEVERLY HILLBILLIES) >A little local color.... > >Come and listen to a story 'bout a man >named Jed, >A poor college kid, barely kept his >family fed, >But then one day he was talking to a >recruiter, >He said "They'll pay ya big bucks if ya >work a computer", > >CAD that is ... CRT's ... >Micro-stations; > >Well the first thing ya know ol' Jed's >an Engineer, >The kinfolk said "Jed move away from >here", >"Redstone Ars'nal is the place ya >oughta be", >So he drove until he felt the heat and >humidity, > >Summer that is ... no shade ... even >your toenails sweat; > >On his first day at work they stuck him >in a cube, >Fed him a donut and sat him at a tube, >They said "Your project's late but we >know just what to do, >Instead of 40 hours, we'll work you >fifty-two!" > >Overtime that is ... Unpaid ... >Man-datory > >The weeks rolled by and things were >looking bad, >Some schedules got slipped and the boss >was gettin' mad, >They called another meeting and decided >on a fix, >The answer was simple, "We'll work him >sixty-six" > >Tired that is ... Stressed out ... No >so-cial life > >Months turned into years and his hair >was turning gray, >Jed worked hard while his life slipped >away, >Waiting to retire when he turned >sixty-four, >Instead he got called in and escorted >out the door, > >Laid-off, that is ... Downsized ... >Un-em-ployed. > >Y'all come back as a contractor now, Ya >heah? > > >-- > >[ ]------------------------------------------------- > >My personal Web Page can be found at: > > http://www.iag.net/~flpyro > ^^^^^^^^^^^^^^^^^^^^^^^^^^ >To goto my page type in or copy the above text EXACTLY >as shown in your browsers navigation window. > >[ ]------------------------------------------------- >

26 years, 2 months

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Calculator/abacus

by gp＠ecis.com

About ten or more years ago, I saw a photo of the calculator/abacus in a magazine. I called the company in Japan in hopes of buying one for myself. I was told at that time that they were not intended for sale. They were promotional items only; sometimes given as gifts to very good customers. Does anyone out there know where I might obtain one? Gene

26 years, 2 months

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KayPro MC-10

by jwebste3＠bellsouth.net

Does anyone here have a KayPro MC-10, but doesn't have a Users Manual? I received a Users Manual in the mail today, along with some other stuff. It looks a little rough, with some mildew damage on the front bottom and edges, but is still quite readible. The style of writing itself is a little humorous. Definitely unlike any Users Manual that I have ever read. It contains quite a bit of technical info, as well. Despite it not being a very large manual. Jim Webster

26 years, 2 months

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vax hardware (fwd)

by jpl15＠netcom.com

Just a heads-up for our German listmembers.... ---------- Forwarded message ---------- Date: Tue, 28 Sep 1999 14:58:55 +0200 From: Horst Ulrich <hulrich(a)hrz.uni-kassel.de> To: Info-PDP11(a)transarc.com Subject: vax hardware we give away for very cheap price microvax II pdp11 pdp11 23+ additional hardware (floppy, disks etc ) for more info contact hulrich(a)hrz.uni-kassel.de (at university of kassel, germany)

26 years, 2 months

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HP 3000/980 available (free?)

by ss＠allegro.com

(Contact David, not me!) Debus-David(a)AER.ARAMARK.COM writes: Attention Listeners, Lurkers, and esteemed Contributors; I have a 980/100 w/256mb ram , 5 SCSI cards, a SCSI bootable CA, 3 FL cards for HP 6000 1.34 fl drives (9) looking for a good home. It is currently running MPE/iX 6.0 with 160 user license. Any offer including cost of shipping will be accepted. Please respond to debus-david(a)aer.aramark.com [The machine is currently in Golden, CO] [An HP 3000/980 is about 4 feet tall, 2 feet deep, and 6 feet long (rough estimate)]

26 years, 2 months

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L.A. Weekly Article --- Anyone Seen this Before?

by wsmith＠gj.com

There was an article in the August 20, 1999 LA Weekly regarding vintage computers that mentioned VCF 3.0 with a quote from Sam. Don't recall this being referenced before on this list. Go to: http://www.laweekly.com/ink/99/39/cyber-vankin.shtml Sorry if it's been mentioned before. Wayne

26 years, 2 months

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HI! Im new to the list...

by Glenatacme＠aol.com

In a message dated 09/27/1999 7:58:32 PM Eastern Daylight Time, DD950(a)prodigy.net writes: > Welcome to the list. I and the other three people here besides myself that > are interested in KayPro welcome you. Make that four! I bought a Kaypro 10 recently (after seeking advice from people on this list) and I like it! > I threw my 2X-84 away in 1995. Wish > I would have kept it. They are selling on eBay now for $35-40. :-) Shame, shame! > I have thought of trying to collect some information on KayPro and make a > dedicated Web page. Problem is I do not have any material or knowledge of > the company and can't find any here in the boonies. Don't feel bad -- I'm in the giant megalopolis of Orlando Florida and there's no abundance of information here, either. > A short time ago I remarked how the Coleco Adam still had venders, User > Groups, and many Web pages while the KayPro has almost disappeared. Likewise with the Sinclair and Timex/Sinclair machines I collect -- there are many active user groups around the world who share software, as well as hardware groups who have made available devices such as disk drive interfaces, data transfer to/from IBM-type pcs, etc. But nothing for the Kaypro. Perhaps this is because the Kaypro computers weren't "hobbyist" computers -- they were designed and marketed as "business" machines. As far as I can tell there was very little third-party hardware sold for the Kaypro, and they were not exactly designed to be modified (people on the list, please correct me if I'm wrong ;>) Glen Goodwin 0/0

26 years, 2 months

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floppy controller IC (was Re: Fixing a PET?)

by Glenatacme＠aol.com

Richard Erlacher wrote: > The 1770 and 1772, which were 28-pin IC's intended for use only with 5-1/4" > drives, the primary difference between them being the step rates they > support, were not widely used. Tony Duell added: > Dunno if it's any help, but a 1772 is an almost-identical IC, just with > faster (much faster!) step rates. If you're using it with modern floppy > drives then you might well be able to drop a 1772 in place of the 1770. Thank, guys! This information is a big help. The 1700 is the heart of a disk controller I use with my Timex Sinclair 2068. The system is still available from the manufacturer, but in the event of failure it is of course cheaper to replace the IC than the entire controller. Tony: Please define "modern floppy drives." Thanks ;>) Glen Goodwin 0/0

26 years, 2 months

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On eBay

by black＠gco.apana.org.au

MOS KIM-1 and manual for sale on eBay http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=171221886 // Lance Lyon black(a)gco.apana.org.au llyon(a)primus.com.au lance999(a)hotmail.com Ph: +61-3-6254-7376 //

26 years, 2 months

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Kennedy 9600 9-Track Tape Drive

by Jgzabol＠aol.com

Hello Marvin, is it still OK to plan for pickup on Friday morning ? I will leave here Wednesday night, in order to be with John Lawson on Thursday. As of now I do not have any means to find you. Thank you and best regards John

26 years, 2 months

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HI! Im new to the list. Kaypro '99..

by DD950＠prodigy.net

-----Original Message----- From: Don Maslin <donm(a)cts.com> > >Perhaps the attached 'history' will help. > It helps much. Thanks for taking the time to find that history and post it. I am convinced to start my KayPro Web page now. There are plenty of free Web servers out there. I have a real soft spot for the KayPro and I sense there are a few others that do also here. Time somebody starts a dedicated Web site to honor these hard working machines. Besides, you never forget your first one! :-) If anybody has any scanned photos or can scan some sales brochures etc. , please send them to DD950(a)prodigy.net . I have nothing KayPro left here except a leather cover for the 2X-84. I paid $75 for it in 1984 and used it only to take the machine home LOL. Sure seemed like a good purchase at the time! More of the history is needed and very welcome. I think Kaypro started as a test instrument company under another name and that is were the standard "portable" cases came from for the CP/M machines. ?? Also the history of MicroPo and the rise and fall of WordStar should be included here if anybody will or has written something up. I think it is also an interesting story. This will be a group effort and perhaps we can make the Web site a bit of the home page for this mailing list with pictures of the contributors etc. Regards, ??? <-- KayPro graphics, remember them? ~ Jim Rossbach "640K ought to be enough for anybody." ( Bill Gates, 1981 )

26 years, 2 months

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Picking tubular locks

by CLASSICCMP＠trailing-edge.com

> For what it's worth - when I worked in the Cooler department here >at Coca-Cola we used a automotive dent puller (which is a kind of >slide hammer) to pull locks in vending machines. We had the hardest >type to break into because we used Abloy locks. I hope this is never necessary for a classic computer! For the DEC and DG machines that I'm familiar with and which used a real lock cylinder, all you have to do is remove the front panel, loosen a nut, and pull the cylinder. It does pay to look carefully before doing this, as when you put in the new cylinder you want the cam in the correct position to activate the microswitches. If you aren't patient enough to put in a new cylinder, you can use small objects (my favorites were guitar picks) to close the appropriate microswitches you need to operate the machine. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 2 months

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RCA 1861, NTSC and a DEC VR-201

by ethan_dicks＠yahoo.com

> First the levels form most of the 1861 based designs are poor or sloppy. No argument. > The front and back porches are a bit wide. Likely the problem will be > solved when the said cosmac get's it's circuit fixed. That's why I wrote in... to find a fix. > FYI: I have a cosmac design that has the 1861... How can I get a scan/copy? I have some example schematics for 1861 circuits, but they tend to be very simple with not much more than a couple of resistors. Probably the very thing you were saying is inadequate. I do not know enough about video to design a correct circuit, but I can certainly install one. Thanks, -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

26 years, 2 months

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Picking tubular locks

by pete＠dunnington.u-net.com

Oops -- I deleted the message mentioning the "hacker's guide" to picking locks. Actually it's a locksmithing guide, if you're thinking of the MIT document. http://www.lysator.liu.se/mit-guide/mit-guide.html http://www.telepath.com/pillar/locksmith.html Anyone who's really interested might also look for a document called "scrtlock.html" or "scrtlock.txt", by Steven Hampton, and which used to be on Stephen Hardman's page. -- Pete Peter Turnbull Dept. of Computer Science University of York

26 years, 2 months

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VCF swap meet

by wsmith＠gj.com

>>>> Bruce Lane <kyrrin(a)bluefeathertech.com> 09/25 8:26 AM >>> > If anyone has any M7622 (16MB MS650/MicroVAX 3) memory boards they wish to >part with, and were considering carting to the VCF swap meet, I would >certainly consider buying if the price is right... ;-) I'll be looking for an Osborne Executive in the $50-60 range if someone wants to bring one along. Also seeking a Kaypro Robie, which I'll go much higher on, depending on condition

26 years, 2 months

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HI! Im new to the list...

by DD950＠prodigy.net

-----Original Message----- From: Todd Jaspers <ToddJ(a)symresources.com> > Hi, im new to the list, I don't know how busy this list is, but if >it's anything like the Fiero list.. there should be at least 100 emails a >day Only 100 or so postings a day huh? Well you will soon get used to the increased volume of email on this list. :-) Welcome to the list. I and the other three people here besides myself that are interested in KayPro welcome you. I threw my 2X-84 away in 1995. Wish I would have kept it. They are selling on eBay now for $35-40. :-) I have thought of trying to collect some information on KayPro and make a dedicated Web page. Problem is I do not have any material or knowledge of the company and can't find any here in the boonies. A short time ago I remarked how the Coleco Adam still had venders, User Groups, and many Web pages while the KayPro has almost disappeared. Welcome Aboard, oh, it is your turn to buy the next round, :-) Regards, Jim Rossbach, Tonkin Gulf Yacht Club Web Ring, www.TonkinYachts.cjb.net The astonishing thing was that the newsperson managed to say "Authorities *suspect* alcohol was involved" with a straight face.

26 years, 2 months

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Picking tubular locks

by CLASSICCMP＠trailing-edge.com

> Tubular locks depend on depressing each of the pins to exactly the right >depth, and the tolerances are very tight. My best guess is that it would >take -hours- of continuous effort, assuming that a tool even exists for it, >because all the pins have to be held in precisely the right position >simultaneously. Such a tool does exist - it's a "gun" type object, you set the levers on the handle to the depths you want, insert, and turn. Real locksmiths (with tables for the key codes) take about ten seconds to do this. > If you think tubulars are tricky, take a look at the Medeco high-security >cylinders. Not only do you have vertical pins, you've also got a series of >cams along the side that are angle-sensitive. That's why you'll see the >keys cut with angled notches. > > I once heard a rumor that Medeco had a standing reward of $10,000 for >anyone who could successfully pick one of their high-sec cylinders. If such >a reward does exist, I've yet to hear of it being claimed. I don't know about picking, but at Caltech several of the undergraduates had very efficient means for copying Medeco keys. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 2 months

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Picking tubular locks

by ethan_dicks＠yahoo.com

--- CLASSICCMP(a)trailing-edge.com wrote: > >At 07:14 PM 9/25/99 +0100, Tony Duell wrote: > >> > >>What sort of lock is it? Most locks can be picked, although the worst > >>common type is the 'Ace' tubular lock > It's probably simpler to buy the correct key. All DEC systems with > tubular locks that I've met use a XX2247 key, I have *one* PDP-8/L PSU with a different key (but I have the key). All other DEC locks I have ever run across were the XX2247 key. You used to be able to get spares from friendly FS guys. > The later "plastic key" DEC locks can be turned with just about anything - > they aren't really locks at all. But don't use an XX2247 metal key in those plastic ones on a regular basis. The fluting (combination) on the metal keys abrads the plastic "lock" body. My younger brother is a former locksmith (and current professional geek). He owns an Ace lockpick. It's like an Ace key body with the pin grooves cut all the way up the cylinder and feeler gauges in the grooves with a tension collar above where the lock body would sit on the key. The whole thing is capped with a 1" knurled plastic knob. To pick the lock, you slide all the feelers down to zero, insert the "key" into the lock and give it this special twisting, pushing, pulling motion that's hard to describe in writing. The idea is to bind the pins in the lock and push back the feelers by pressing the pick against the bound pins. He can open a pop machine in about 15 sec. The secondary benefit of this pick is that you can now make a key from the pick since you know all the depths. It's about $70. He made a second one for a non-Ace lock, but he's that kind of guy. No, I don't own one myself, but he did re-key my personal Gorf machine to XX2247 for my convenience. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

26 years, 2 months

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HI! Im new to the list...

by ToddJ＠symresources.com

Hi, im new to the list, I don't know how busy this list is, but if it's anything like the Fiero list.. there should be at least 100 emails a day. In any case, let me say a little bit about myself... or at least the computers i've had. I used to collect old computers. While I gave most of them to my roommate, I still have quite a few old ones.. 1) KayPro PC-10.. two 5.25" drives, 20mb ST-225/RLL, Herc Monochrome. 2) KayPro 2 - Huge portable CP/M beast... 3) KayPro laptop 4) Leading Edge 386 SX-16 5) IBM PCjr - Fully loaded with drive, 128k mem, all games ever made on cart, and color screen. 6) Amiga 500 with two monitors. 4 shoeboxes of games. 7) Atari XEGM 8) Commodore 64 9) Commodore 128/SX (one of three prototypes ever made, and I took it apart and thew it away because I had no idea it was worth anything. Got it from an ex-Commodore worker) 10) Atari 1040ST Are any of these really rare? Im a big fan of KayPro computers but don't really have very many. I actually gave away my laptop because I had too much junk lying around. I still have the PC-10 (first real computer) but it's stored away in the basement of a house we are leasing out in Northern Virginia. Todd, 1987 Pontiac Fiero SE / V6 1985 Pontiac Fiero GT 1984 Pontiac Fiero 2m4 SE 1982 Pontiac TransAm V8 "Smokey & The Bandit III Edition"

26 years, 2 months

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Fixing a PET?

by CLASSICCMP＠trailing-edge.com

>Before that, most micros used off-the-shelf ICs. Although some of these >chips are getting rather hard to find now -- some disk controllers >(WD1771, Intel 8271, etc) are _very_ difficult to find new. Not all are that difficult - BG Micro ( http://www.bgmicro.com/ ), for example, has a fairly decent selection of WD floppy controller chips. While on the topic of replacing "classic" VLSI chips, are there any FPGA's still available in 40-pin packages anymore? I've seen PGA-to-DIP adapters, but those are a bit clunky (and overkill!) -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 2 months

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Fixing a PET?

by gregorym＠cadvision.com

On Monday, September 27, 1999 12:10 PM, Bill Yakowenko [SMTP:yakowenk@cs.unc.edu] wrote: > One of the first things to do when you have a screenful of the > wrong characters is to whip out an ASCII chart, and look at the > binary codes for the characters you've got vs. the ones you > expected. Very often the problem is a single-bit change, which > narrows down the source of the problem. For instance, the > difference between upper- and lower-case ASCII characters is a > single bit. > > Cheers, > Bill. > > > On Sat, 25 Sep 1999, Gareth Randall <gwr(a)easynet.co.uk> wrote: > ] Hi guys, > ] > ] I'm new here, so be gentle! =;-) > ] > ] I'm hopefully about to acquire a PET 8032 - the first PET I've ever owned > ] (I was six years old when they first came out). I'm told that it boots into > ] Basic 4.0, but the boot details are shown in lower case with the odd > ] incorrect character. Also, when typing, some characters come up on the > ] screen differently to the ones actually typed. > ] > ] The vendor suggests it may just need a clean and the I/O chip re-seating - > ] but if it's something more complicated, is it still possible to buy > ] replacement chips? And, thinking longer-term, are replacement screens > ] possible to find these days (e.g. are they a standard size that you can > ] still buy off-the-shelf)? > ] > ] Any suggestions gratefully received! > ] > ] Gareth > > For the 8032, you'd need a "PETSCI" chart - Commodore didn't adhere completely to the ASCII standard coding. I have a copy of the PETSCI codes, but they're at home, and I'm not. If anyone needs them, e-mail me and I'll be happy to send them to you, or post them. Mark.

26 years, 2 months

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Ace

by CLASSICCMP＠trailing-edge.com

>If you don't eliminate non-authorized access to the hardware, then how >could you eliminate non-operator use of the control panel? A >non-operator could merely bypass the lock, or replace it with their own. >Or is it merely intended to be a polite request and reminder? Merely a polite request and reminder. On the DEC and DG machines, you could put the lockswitch into the "panel lock" position, so that folks brushing up against the front panel switches won't halt/crash the machine. >ANY properly designed and installed lock must be unlocked before it can be >removed. Sure. But if you've got physical access to the computer in the first place, any hopes of true security are gone anyway. A hard disk lobotomy (even easier for old removable pack drives than modern machines) gives anyone access to your data, and they don't even have to be near the front panel to do that! -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 2 months

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IBM S/36 help needed

by msg＠waste.org

Greetings! We just acquired a S/36 5363 III sans maintenance key, maint. diskettes, manuals, in short we just got the CPU. Our main concern is opening the case! We'd rather not drill out the lock (as some PS/2s have suffered) if at all possible. Any help and/or maint. materials are much appreciated! Please reply to msg(a)waste.org Thanks much! Michael Grigoni Cybertheque Museum

26 years, 2 months

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RCA 1861, NTSC and a DEC VR-201

by ethan_dicks＠yahoo.com

--- allisonp(a)world.std.com wrote: > No scan or copy capability. The unit I was woking with required a > resistor from the video ouput to ground, I'd picked 75ohms for the > purpose. Everything I've seen is like the basic 1861 design in the Elf-II article in P-E: http://www.infinet.com/~erd/retrocomputing/ElfII/ (10K resistor on SYNC, 2K resistor on VIDEO, tied together and to ground by 1K resistor). Perhaps I just need to play with the resistor values. > I'd have to see the circuit you have to figure it out. there were several > variations. It's the standard COSMAC VIP. I'll scan the 1861 output section and post a URL for it later tonight if I get the chance. IIRC, it looks just like the Elf-II circuit. Nothing complicated. -ethan ===== Infinet has been sold. The domain is going away in February. Please send all replies to erd(a)iname.com __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

26 years, 2 months

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floppy controller IC (was Re: Fixing a PET?)

by edick＠idcomm.com

The 1770 and 1772, which were 28-pin IC's intended for use only with 5-1/4" drives, the primary difference between them being the step rates they support, were not widely used. I have the 1770 on my AMPRO "Little Board" but the numbers are out of sequence in the sense that the first of their parts was the 1771, followed by the 179x series, with a shot at a 178x group ( intended to fill the gap with respect to M^2FM and (?) hard sectors ) which wasn't around long if at all. The 1791 was an inverted-bus version of the 1793. This inverted bus was inherited from the1771, and was designed to explout the benefit of the inverting bus' slightly shorter propagation delays. One advantage the 1770/72 offered was that they had drivers capable of driving the 110-ohm terminated cable to the drives. Shortly after they released the 1770/72, they started making boards for IBM and compatibles, which either used all their production of the required parts, or made them sufficiently unpopular with their former customers now competitors that they stopped making these parts, among others. They did make a couple of 765-compatible FDC's with cable-driving outputs which appeared on some of their SCSI HDC's and their IBM-compatible boards. I've only got one spare, and I'm hoping I don't need that. If you find these, please let me know. Dick -----Original Message----- From: Glenatacme(a)aol.com <Glenatacme(a)aol.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Sunday, September 26, 1999 8:26 PM Subject: floppy controller IC (was Re: Fixing a PET?) >In a message dated 09/25/1999 2:53:45 PM Eastern Daylight Time, >CLASSICCMP(a)trailing-edge.com writes: > >Tony Duell wrote: >> >Before that, most micros used off-the-shelf ICs. Although some of these >> >chips are getting rather hard to find now -- some disk controllers >> >(WD1771, Intel 8271, etc) are _very_ difficult to find new. >> > >CLASSICCMP(a)trailing-edge.com replied: >> Not all are that difficult - BG Micro ( http://www.bgmicro.com/ ), for >> example, has a fairly decent selection of WD floppy controller chips. > >This looks like a pretty good source. However, they don't list the WD1770 >disk controller IC -- anyone know where these might be available? > >TIA, > >Glen Goodwin >0/0

26 years, 2 months

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Fixing a PET?

by yakowenk＠cs.unc.edu

One of the first things to do when you have a screenful of the wrong characters is to whip out an ASCII chart, and look at the binary codes for the characters you've got vs. the ones you expected. Very often the problem is a single-bit change, which narrows down the source of the problem. For instance, the difference between upper- and lower-case ASCII characters is a single bit. Cheers, Bill. On Sat, 25 Sep 1999, Gareth Randall <gwr(a)easynet.co.uk> wrote: ] Hi guys, ] ] I'm new here, so be gentle! =;-) ] ] I'm hopefully about to acquire a PET 8032 - the first PET I've ever owned ] (I was six years old when they first came out). I'm told that it boots into ] Basic 4.0, but the boot details are shown in lower case with the odd ] incorrect character. Also, when typing, some characters come up on the ] screen differently to the ones actually typed. ] ] The vendor suggests it may just need a clean and the I/O chip re-seating - ] but if it's something more complicated, is it still possible to buy ] replacement chips? And, thinking longer-term, are replacement screens ] possible to find these days (e.g. are they a standard size that you can ] still buy off-the-shelf)? ] ] Any suggestions gratefully received! ] ] Gareth

26 years, 2 months

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Looking for a grundy NEWBRAIN

by morrison＠t-iii.com

Have you tried http://www.ewanted.com/ ? It's free - you never know! Neil > -----Original Message----- > From: Francisco Morales [SMTP:pacomo@execpc.com] > Sent: Friday, September 24, 1999 1:39 PM > To: Discussion re-collecting of classic computers > Subject: Looking for a grundy NEWBRAIN > > I am looking to buy a NEWBRAIN. It was my first computer and I have been > searching the web for some time and haven't found any. > Anyone has one for sale? > > Paco

26 years, 2 months

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H-89A Computer

by morrison＠t-iii.com

I am forwarding this to classiccmp(a)lists.u.washington.edu Neil Morrison email:morrison@t-iii.com > -----Original Message----- > From: Bob Carner [SMTP:rscarner@VT.EDU] > Sent: Monday, September 27, 1999 4:41 AM > To: HEATH(a)LISTSERV.TEMPE.GOV > Subject: FS: H-89A Computer > > Anyone interested in an Heathkit H89A computer? > Bob Carner > > Bob Carner, EE, SysAdmin, and Network Liason > Brooks Forest Products Center > Department of Wood Science and Forest Products > rscarner(a)vt.edu > > Sponsored by the City of Tempe > > Listserver Submissions: heath(a)listserv.tempe.gov > Listserver Subscription: listserv(a)listserv.tempe.gov - "subscribe heath > 'name' 'call'" > Listserver Unsubscribe: listserv(a)listserv.tempe.gov - -"signoff heath"

26 years, 2 months

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SunOS 4.1.1 or Solaris 2.3 for Sun 3 needed

by msg＠waste.org

Greetings! Just acquired a Sun 3/50; it is diskless and boots on tftp. We're hoping to find SunOS .LE. 4.1.1 or Solaris .LE. 2.3 to demonstrate it (and other Sun 3 hardware). All replies much appreciated (msg(a)waste.org) Thanks. Michael Grigoni Cybertheque Museum

26 years, 2 months

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floppy controller IC (was Re: Fixing a PET?)

by Glenatacme＠aol.com

In a message dated 09/25/1999 2:53:45 PM Eastern Daylight Time, CLASSICCMP(a)trailing-edge.com writes: Tony Duell wrote: > >Before that, most micros used off-the-shelf ICs. Although some of these > >chips are getting rather hard to find now -- some disk controllers > >(WD1771, Intel 8271, etc) are _very_ difficult to find new. > CLASSICCMP(a)trailing-edge.com replied: > Not all are that difficult - BG Micro ( http://www.bgmicro.com/ ), for > example, has a fairly decent selection of WD floppy controller chips. This looks like a pretty good source. However, they don't list the WD1770 disk controller IC -- anyone know where these might be available? TIA, Glen Goodwin 0/0

26 years, 2 months

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Picking tubular locks

by jlwest＠tseinc.com

Picking a standard lock isn't that difficult, especially with the right tools. I've never tried an ACE or "round" type lock, but I was always under the impression that those were virtually impossible to pick, even for a pro?!? Jay West -----Original Message----- From: John Foust <jfoust(a)threedee.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Monday, September 27, 1999 8:35 AM Subject: Picking tubular locks >At 07:14 PM 9/25/99 +0100, Tony Duell wrote: >> >>What sort of lock is it? Most locks can be picked, although the worst >>common type is the 'Ace' tubular lock, which I guess this is likely to >>be. > >Argh, now there's a useful thread topic. I've got a few systems in >the basement that need picking, and I've put them aside until I know how. >Any tips? I seem to remember some hacker text file on the topic. > >- John > >

26 years, 2 months

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Picking tubular locks

by CLASSICCMP＠trailing-edge.com

>At 07:14 PM 9/25/99 +0100, Tony Duell wrote: >> >>What sort of lock is it? Most locks can be picked, although the worst >>common type is the 'Ace' tubular lock, which I guess this is likely to >>be. >Argh, now there's a useful thread topic. I've got a few systems in >the basement that need picking, and I've put them aside until I know how. >Any tips? I seem to remember some hacker text file on the topic. It's probably simpler to buy the correct key. All DEC systems with tubular locks that I've met use a XX2247 key, and all the DG systems use identical keys too (but I don't have my DG key on my keychain at this moment so I can't give you the pattern #.) The later "plastic key" DEC locks can be turned with just about anything - they aren't really locks at all. And replacing a tubular lock of unkown code with a tubular lock with known code is fairly simple. You only have to replace the cylinder (making sure that the new cylinder you get will accept the cam that the old cylinder used to activate the actual switches). Tim.

26 years, 2 months

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PDP 11/70's for sale

by mbg＠world.std.com

>Now the VT61 and VT62 were slick. I have a couple of VT62s... There was even a version of KED for the VT62... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 2 months

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Fw: FS: H-89A Computer

by dogas＠leading.net

I'm just relaying... Contact Bob directly... - Mike: dogas(a)leading.net -----Original Message----- From: Bob Carner <rscarner(a)VT.EDU> To: HEATH(a)LISTSERV.TEMPE.GOV <HEATH(a)LISTSERV.TEMPE.GOV> Date: Monday, September 27, 1999 7:44 AM Subject: FS: H-89A Computer >Anyone interested in an Heathkit H89A computer? >Bob Carner > >Bob Carner, EE, SysAdmin, and Network Liason >Brooks Forest Products Center >Department of Wood Science and Forest Products >rscarner(a)vt.edu > >Sponsored by the City of Tempe > >Listserver Submissions: heath(a)listserv.tempe.gov >Listserver Subscription: listserv(a)listserv.tempe.gov - "subscribe heath 'name' 'call'" >Listserver Unsubscribe: listserv(a)listserv.tempe.gov - -"signoff heath" >

26 years, 2 months

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FS: Panasonic Sr. Partner computer

by rigdonj＠intellistar.net

I have a Panasonic Sr Partner portable computer that I just picked up if anyone wants one. I haven't tested it but I did plug it in and turn it on and it does come up asking for a boot disk. I don't have any software or docs for it so I'm selling it as is. All the fold up covers and legs are there and are intact. It even still has the original power cord in it's cubby hole in the back. It also has a printer built into the top of it. Also FWIW the back is marked "US Sailboard Team". I'll take $35 plus shipping from 32765 for it. E-mail me directly if you're interested. Joe

26 years, 2 months

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DEC Design and implementation

by mbg＠world.std.com

>Was it the hardware boys or was it the marketing types who said, >"Don't put that in. It will steal sales from the higher commission >and higher priced xxx machine." I'm sure it was a marketing issue. >I can't believe hardware guys were responsible for single sided RX180 >drives and the really lousy RX50's. Hindsight is something, isn't it... Not that I know any better, but what else was there *at the time the design was made*? Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 2 months

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SunOS 4.1.1 or Solaris 2.3 for Sun 3 needed

by KFergason＠aol.com

In a message dated 9/25/99 1:17:24 PM Central Daylight Time, bpechter(a)mail.monmouth.com writes: > The last thing for Sun3's was Solaris 1.1.1 (SunOS 4.1.1). > There never was a Solaris 2.x for any Sun3 released. > Bill > Solaris 1.1.1 was SunOS 4.1.3_U1 SunOS 4.1.1_U1 is the last OS for the Sun 3's. SunOS 4.1.1 has no equivalent Solaris number. Kelly

26 years, 2 months

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New Collector - Pointers to Sources

by rkaplan＠accsys-corp.com

Hello - I am a relatively new collector and new to the list, so this may be a naive question - please excuse. I would like to get my hands on either/or/and a PDP-8/?, PDP-11/?. Where does one look - keep an eye on? Can you point me to places to watch or even places that list places to watch? Any help would be appreciated. Thanks in advance, -- Dr. Randy M. Kaplan publisher, knowldgWORKS News Subscribe at: knowldgWORKSNews-on(a)lists.webvalence.com Visit: www.accsys-corp.com

26 years, 2 months

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New Collector - Pointers to Sources

by allisonp＠world.std.com

<I am a relatively new collector and new to the list, so this may be a <naive question - please excuse. I would like to get my hands on <either/or/and a PDP-8/?, PDP-11/?. Where does one look - keep an eye on? Ok, For smaller systems the PDP-11 Q-bus based ones are resonable. They are easy to deal with power wise and space wise. Most of the PDP-11 Unibus systems tend to be multiple 4-6ft racks for reasonably operable systems. Smallest PDP-11 systems are the MicroPDP-11s <one deskside box> and the largest <PDP-11/70> will easily be 3-5 72"tall racks plus disk drives the size of washing machines and require special power(220V 3phase). This line is very varied! Moving the big ones is a non trivial task. In the common but non bussed PDP-11s there are the PRO350 , PRO380 and PDT-11/series. While some argue they are not "real PDP-11s" they are certaily the same instuction set and related members worthy of collection. Size PCish, no special power. You should be able to find them free to inexpensive. PDP-8 series, the 8e/f/m are the easiest to find and work with. A full system can be one box (11Hx21Wx28D) is you use a PC to simulate, or better yet obtain, a teletype so paper tape software can be run. Systems with disks will need at least a small rack in the 30-72" height. Some of the older 8I, 8(no designator) can easily be two to four racks and tax the power budget of standard house wiring and possible the floor <weight!>. There are PDP-8 based systems that are quite small and interesting in the own right. DECmate I/II/III series are aimed at word processing but do use a common cpu (cmos chip that is PDP-8 instructions set). They will run a variation of OS8 <os/78 or os/278). These are easy to find, common and should be very inexpensize to free. Size, desktop PCish. I would suggest researching what you want and what you can store (and power) first so you know what your looking for and at. There are a lot of web sites with pictures and descriptions. You're referenceing a lot of postential machines and narrowoing what you might like is not a bad idea. Allison

26 years, 2 months

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You find stuff in the oddest places...

by mtapley＠swri.edu

All, My wife was cleaning out the bookshelf last night and said, "Do we still want this?" holding up a book by Robert Mottola, "Assembly Language Programming for the Apple II", Copyright 1982. My jaw dropped open. I'd never seen it before, never having owned an Apple II. She eventually sort of dimly recalled getting it herself at some point, bless her heart. Anyway the answer to her question is "no". Does anyone here want it, for the cost of shipping? - Mark

26 years, 2 months

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DEC Terminal Design

by CLASSICCMP＠trailing-edge.com

>That's fine if all your systems are PCs. On this list, that's rarely the >case, and it's a lot of work to use an IBM keyboard on a PET or TRS-80 or >C64 or PERQ or... Several years back, I picked up a little adapter (a PC board with one or two chips) that allows PC-clone (specifically, XT compatible) keyboards to be used with an Apple ][ keyboard interface (that 0.3" DIP socket). I'd never seen one before, and I've never seen one since. Were these ever widely available? Who made them? (Mine is quite devoid of any markings - the chips are even unlabeled!) -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 2 months

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Further Inventory Liquidation update

by max82＠surfree.com

Following things still not sold: Opened e-World package (NS) TML Pascal II (complete devel. system for Macintosh) About 50 untested apple ][ disks, some of everything IBM 5250 Information Display System MAP's, Parts catalog, Maintenance information manual (a data terminal used w/System 34) Secret Guide to Computers, 10th ed. V2 (Hassles With Basic)(NS) Commodore: C-64 Geos/QuantumLink users' guide 1.2 (cover damaged) (NS) Commodore Spring 1987 catalog (NS) Space Rogue for C64 (copy + photocopied manual) (NS) Fire King for C64 (copy + photocopied manual) (NS) Word Writer 6 for C64 (entire package, decent word processor) F-14 tomcat for C64 (copy + photocopied manual) (NS) The Rubicon Alliance for C64 (NS) Solo Flight for C64 (NS) WordStar made easy, 2nd edition (a tutorial, 150 pg.) C-64C Introductory and System guides Commodore 300 bps modem (model 1660) Misc. C-64 games and utils (about 25 disks, some useless, most work, generally classic games)

26 years, 2 months

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A/UX

by af-list＠lafleur.wfi-inc.com

Does anyone have a set of A/UX 2.0 or higher that they'd want to sell? Please contact me privately... Thanks, Aaron

26 years, 2 months

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3.5"/5.25" adapter kits?

by CLASSICCMP＠trailing-edge.com

OK, it's not *completely* on-topic, but it is a relatively low-tech item and quite relevant for those dealing with 10-year-old hardware: I'm looking for some of the adapter kits (with bezels) for putting 3.5" hard drives into 5.25" bays. The local shops have adapters for 3.5" floppies (with, of course, a big rectangle cut in the bezel) but these don't have a nice plain front bezel, and often the holes in them are in completely wrong places for hard drives. Some shops have kits supplied by Western Digital for their hard drives, but often the mounting holes are in completely wrong positions for Seagate or Micropolis or other brands of drives. If anyone has a large number of the adapters/bezels just kicking around (say 10 or 20) I'd be glad to buy them at a fair price. I'd also be happy to be pointed towards a source of these new. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

26 years, 2 months

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DEC VT1000/1200

by allisonp＠world.std.com

<Just made a trip to the local surplus shop, and they have a whole cart ful <of DEC VT1000's and VT1200's. Appears to be just a base unit (no monitor, <etc.)... They wanted $15.00 each. < Vt1200 is a Xterm and works with any DEC monitor (switch selected on back) and likely many others. Uses DEC round mouse and LKx01 keyboard. There is both a terminal line (mmj) and eithernet. If you buy make sure there is ram installed as they are often stripped. It must have at least 2mb. Also there is a rom card that must be there. I have one with VR315 mono and I use it as LAT/IPxwin/telnet decwindows terminal or as DCE. If you play with vaxen this makes a good terminal either networked or via MMJ serial. Allison

26 years, 2 months

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IBM PS/2 Model 25

by allisonp＠world.std.com

<Just bought an IBM PS/2 Model 25 and Im looking for some info on it. I.e = <docs.. cant help on that. <And I have a few questions. Can I get a bigger HD for it? Currently it = <has a 20mb HD which I figure is standard. =20 Not in the M25, it was likely added later. Larger is possible but may be difficult. The common way to add a larger hard disk is a ISA 8-bit adaptor to get IDE functionality then you can use drives commonly available. <Is it possible to compress it? Yes, under dos6.22 but it will be real slow. <About how far can I upgrade it? Not far. Your limited to 640k ram, modem, mouse, hard disk. Keep in mind this is an enhanced XT (8086), windows is barely doable and limited to versions 3.0 or below. Win9X is out of the question. Cpu upgrade is nearly impossible. <And finaly: The screen "Display" is rather small.. But I cant find any = <knobs or anything to ajust it.. Any Ideas? Or am I just stuck with it.. Stuck, different monitor may be possible of if you are able internal adjustments are possible. Allison

26 years, 2 months

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SunOS 4.1.1 or Solaris 2.3 for Sun 3 needed

by bpechter＠mail.monmouth.com

> Greetings! > > Just acquired a Sun 3/50; it is diskless and boots on tftp. We're > hoping > to find SunOS .LE. 4.1.1 or Solaris .LE. 2.3 to demonstrate it (and > other > Sun 3 hardware). > > All replies much appreciated (msg(a)waste.org) > > Thanks. > > Michael Grigoni > Cybertheque Museum > The last thing for Sun3's was Solaris 1.1.1 (SunOS 4.1.1). There never was a Solaris 2.x for any Sun3 released. Bill

26 years, 2 months

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PDP 11/70's for sale

by mbg＠world.std.com

>tape until we started using the 8" floppies. Each PDP 11/05 or 11/04 had >a VT52 with an internal wet paper printer. Unless there was an upgrade option for the VT52 I don't know about, the 'VT52' w/printer is actually designated the VT55. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

26 years, 2 months

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Fixing a PET?

by morrison＠t-iii.com

Well, it's not the 'screen'. Perhaps some of the video ram is bad, or the character generator. Neil Morrison email:morrison@t-iii.com > -----Original Message----- > From: Gareth Randall [SMTP:gwr@easynet.co.uk] > Sent: Friday, September 24, 1999 4:01 PM > To: Discussion re-collecting of classic computers > Subject: Fixing a PET? > > Hi guys, > > I'm new here, so be gentle! =;-) > > I'm hopefully about to acquire a PET 8032 - the first PET I've ever owned > (I was six years old when they first came out). I'm told that it boots > into > Basic 4.0, but the boot details are shown in lower case with the odd > incorrect character. Also, when typing, some characters come up on the > screen differently to the ones actually typed. > > The vendor suggests it may just need a clean and the I/O chip re-seating - > but if it's something more complicated, is it still possible to buy > replacement chips? And, thinking longer-term, are replacement screens > possible to find these days (e.g. are they a standard size that you can > still buy off-the-shelf)? > > Any suggestions gratefully received! > > Gareth

26 years, 2 months

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Boxed Apple ][c+ anyone, maybe?

by dogas＠leading.net

There's (maybe still) one up at the Veteran's Thrift on Beach Blvd (Jacksonville, FL) It was $30... (I bought the unboxed one for $4) If someone wants it, let me know and I'll swing by and see if its still there... Regards - Mike: dogas(a)leading.net

26 years, 2 months

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DEC VT1000/1200

by jlwest＠tseinc.com

Just made a trip to the local surplus shop, and they have a whole cart full of DEC VT1000's and VT1200's. Appears to be just a base unit (no monitor, etc.)... They wanted $15.00 each. I know nothing about these devices at all, but thought I'd post here in case anyone was "in search of" so to speak... Jay West

26 years, 2 months

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VCF swap meet

by kyrrin＠bluefeathertech.com

If anyone has any M7622 (16MB MS650/MicroVAX 3) memory boards they wish to part with, and were considering carting to the VCF swap meet, I would certainly consider buying if the price is right... ;-) -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 "Our science can only describe an object, event, or living thing in our own human terms. It cannot, in any way, define any of them..."

26 years, 2 months

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Help! ID this Zenith computer

by rigdonj＠intellistar.net

I went scrounging again today and brought home a large Zenith computer. Model number ZDF-121-32. It's about 18" wide and 14" tall and has an attached keybaord. It has two 5 1/4" floppy drives on the RH side of the front and a ~12" monitor on the LH side. Can someone tell be what it is and what kind of OS it uses? I also need OS, software and manuals if anyone has them. Thanks, Joe

26 years, 2 months

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IBM PS/2 Model 25

by MsBaca＠hotmail.com

Hi! Just bought an IBM PS/2 Model 25 and Im looking for some info on it. I.e docs.. And I have a few questions. Can I get a bigger HD for it? Currently it has a 20mb HD wich I figure is standard. Is it possible to compress it? About how far can I upgrade it? And finaly: The screen "Display" is rather small.. But I cant find any knobs or anything to ajust it.. Any Ideas? Or am I just stuck with it.. Sorry for all the questions.. Michael Sunbear(*)

26 years, 2 months

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Central Point Option floppy controller

by mark_k＠iname.com

On Wed, 15 Sep 1999 Zane H. Healy wrote: > > That's the least painful way I can envision, since the APPLE diskettes are > > totally foreign to "standard" modulation schemes used with FD's and their > > controllers. It would not surprise me to learn that there's an easy way to > > do this same thing with LINUX as well. > > Probably the best card for this would be a PC version of the Catweasel. > However, I don't know what the software availablity is for these. I will > say this, after buying one for my Amiga, I WILL NOT recommend the card to > anyone. The card itself is supposed to be able to read just about any > microcomputer format of the 80's, BUT there is no software to let you do > this! If you have access to an Amiga, you don't need any extra hardware (apart from a 5.25" floppy drive of course) to read Apple ][ disks. There is a program called Disk2File that creates plain disk image files. Disk2File is on the Aminet FTP sites. (Since the Amiga handles decoding in software, MFM, FM, GCR and any other coding can be handled.) -- Mark PS: Does anyone have an Amiga 1020 floppy drive that they no longer need?

26 years, 2 months

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