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

by Philip.Belben＠powertech.co.uk

> Hello Philip, > I have some keys and access to key blanks used in older electronic > equipment. > If you send me a tracing or photocopy of your key I might be able to > match it. Thank you, David. At the moment, I have one system and one key, so a spare is not totally essential. When I am reduced to sending all the way to the US for a replacement, I'll let you know... Philip.

29 years

1
0
0 0

DEC keys (was: DEC keys and consoles)

by ard＠siva.bris.ac.uk

>> Thanks for the information. I'll try to get a copy of the cylindrical >> key made using the key code. The end of the key is broken off inside >> the keylock on the 11/10, so my best course of action here might be to >> extract the part that is inside the lock and have a duplicate made from that. > >Might work. Alternatively, does the lock with the broken bit of key >turn with a screwdriver? You can also dismantle the lock from the front panel (remove the frontpanel >from the rest of the machine, unscrew the microswtich assy, and frob the retaining clip) and pull out the wafers with pliers. Reassemble it without the wafers, and you can operate it with a screwdriver. That's what I had to do to my 11/10 and GT40, alas. Alternatively, if you can find a blank that fits, it would be possible to cut the notches in the appropriate places until the wafers line up with the cylinder edge, and make a key that way. > >I have yet to find anyone who will duplicate my 11/10 key... Err, a strip of metal and a milling machine? :-) > >Philip. -tony

29 years

1
0
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Classic Computer Rescue - A Story

by danjo＠xnet.com

The Great Galesburg, Illinois Rescue Saturday August 2, 1997 - 07:00 The alarm went off and I lept up from bed. Today was The Day. The Illinois arm of the Classic Computer Rescue Squad was to make it's first Rescue! First to the net to see if plans had changed. Nope - looking good! I make my first pot of coffee (don't you love those Bunn's?) and start by cleaning out the van. Saturday August 2, 1997 - 08:45 Well, that was something I hadn't seen in almost two years - the floor of my van I mean. Well, what's left of it. A little history. The van cost me $1 about four years ago. When I bought it >from my buddy's brother, he turned around and paid my buddy the dollar he owed him for the van from two years before that 8-) The main problem is that this thing just keeps running. Anyway, after examining the two foot square hole in the floor, I decided a piece of plywood would do nicely. Into the house to make a pot of coffee for the road. And my buddy calls. We have this understanding when either of us is about to do something stupid, we just know about it. No we don't try to talk each other out of it, we just like to know what is going on 8-) Saturday August 2, 1997 - 09:09 Finally ready to hit the road. Gas up the van, check the front right tire. Already thru the fourth ply of a four ply - eight ply rating! Ah well that's why you have a spare. I believe E-250's where made to run with a load! Man is this thing noisy and jumpy with with NO load! Saturday August 2, 1997 - 10:00 Well, that klacking sound is back! Time to throw in another guart of oil! Nope - better make it two! Quick check - nope the radiator ain't leaking any more. Saturday August 2, 1997 - 11:00 We both have to go REAL bad! Oh look - a rest stop. Both the van and I relieve ourselves. The van didn't leak all THAT bad! Back to the road. Saturday August 2, 1997 - 11:30 Heading south into Galesburg, IL on I-74. Why don't they TELL people they are ripping up the road? Saturday August 2, 1997 - about 12:00 somthing. Well, it looks like I am the last here. The directions were impecable! The roads where impassable 8-) Partial list (to be modified) 2 - 11/44 1 - VT-52 3 - RA81 1 - TE16 1 - RSTS Manual set 1 - VAX Ver. 4.0 Manual set 1 - Set of Field Service docs - Mixed 1 - Set of upgrade tapes - DEC Tape II and - what do you call those reels? 1 - 1/4 ton of spares, failures, cables, and Etc. We did however lose the 11/750 8-( Apparently a professor had wanted a 19" rack and his students chose the 11/750 as the doner! The guts were exposed to a fate that I abhore - The Trashman! I think a good time was had by all. At least while we were at Galesburg. We had no time to do lunch 8-( And we tried to split the equipment up as I was planning to run over to Peoria and drop off anything those guys couldn't fit. I still don't believe thay ACTUALLY fit 2 11/44s and a RA81 into a minivan! Saturday August 2, 1997 - about 16:00 As the Campus Police drive by we all say our farewells. Everybody is running late so we can't continue our discussions of computers, education, and life in general 8-( I fill up the van with water - don't even look at the tire (too afraid) and I set off to drive the impassable I-74 once again. Saturday August 2, 1997 - about 18:00 Well, I got a table from my buddy - but not the hardware (that way I have an excuse to run over to his place 8-) so I pull off I-55 to run over. Sure enough - Il 59 is all ripped up! As I stop for the traffic light - PANG! I thought I lost the rear spring - but no. After 360 miles that poor little tire had let go at the light. God takes care of Fools and Idiots - I am so glad I belong to both sets! So I pull off and put on my spare - in record time I might add! You guys ever hear of Dry Rot? That tire got me home but only after throwing off about a third of its tread! So after picking up the hardware for the table, watching "Kingpins" at my buddies, and cruising at about 30 for the last 16 miles - I got home - tired, worn out, but safe. Now this weekend I have to go to.... BC

29 years

4
3
0 0

Fwd: Free TVs,etc

by mpsayler＠cs.utexas.edu

Perhaps someone would be interested in the Lisa gear? Path: cs.utexas.edu!geraldo.cc.utexas.edu!slip-90-7.ots.utexas.edu!user From: epotter(a)mail.utexas.edu (EPotter) Newsgroups: austin.forsale Subject: Free TVs,etc Date: Mon, 04 Aug 1997 11:31:47 +0100 Organization: The University of Texas at Austin Lines: 3 Distribution: austin Message-ID: <epotter-0408971131470001(a)slip-90-7.ots.utexas.edu> NNTP-Posting-Host: slip-90-7.ots.utexas.edu Xref: cs.utexas.edu austin.forsale:104815 Two 25" heathkit TVs, working, with one extra chassis for parts. Large and heavy, wood cabinets, not fibreboard, need grill cloth. Also several Lisa keyboards, Lisa manuals, misc. all free, you haul it off.

29 years

1
0
0 0

Honeywell Microsystem 6

by Philip.Belben＠powertech.co.uk

> Hi! > > I recently picked up one of these beasts at a second-hand store, and > managed to assemble her and get her running. However, I have been unable > to find out anything about them other than they run the 8086 processor. Can > anyone tell me something more? Like what the OS is, when they were made, > and what tehir arcitecture was? Honeywell, unsuprisingly, couldn't help, > and I found nothing on the web. Um. I don't recognise the name, but there were some early Honeywell PC type things called "Microsystem Executive". This was a design bought by Honeywell after the British company responsible, Future Technology Systems, went bust. The FTS series 86 was sold as the "Non-compatible compatible". OS was a version of CPM-86 with MS-DOS compatibility, multitasking, and one or two other fun features, called Concurrent DOS, and sold by a software house whose name I can't remember (Pegasus? Something beginning with P, I think). Despite its PC-incompatibility - architecture quite different at the hardware level - Lotus 123 version 1 ran without modification, and even drew graphs on the monchrome monitor... I have an FTS 86 somewhere. It was far too expensive, even tho' my father got a huge discount for not suing FTS for breach of contract when they failed to maintain our Series 88 machines. After FTS folded, Honeywell-Bull maintained it for a while; they gave that up at about the time Honeywell sold the rest of their computer arm to Bull group. More than that I can't remember, offhand. If you want more info, I'll see what I can find, but it won't be much... Philip. <><><><><><><><><><><><><><> Philip Belben <><><><><><><><><><><><><><> Das Feuer brennt, das Feuer nennt die Luft sein Schwesterelement - und frisst sie doch (samt dem Ozon)! Das ist die Liebe, lieber Sohn. Poem by Christian Morgenstern - Message by Philip.Belben(a)powertech.co.uk

29 years

1
0
0 0

Who wanted my book?

by manney＠nwohio.com

I offered a book, "Assembly Language Programming for the 8080/8085"; someone said he wanted it. Who? (I lost the reply). Thanks manney(a)nwohio.com

29 years

1
0
0 0

DEC keys (was: DEC keys and consoles)

by Philip.Belben＠powertech.co.uk

> Thanks for the information. I'll try to get a copy of the cylindrical > key made using the key code. The end of the key is broken off inside > the keylock on the 11/10, so my best course of action here might be to > extract the part that is inside the lock and have a duplicate made from that. Might work. Alternatively, does the lock with the broken bit of key turn with a screwdriver? When I tried to get my 11/10 console key duplicated, the locksmith didn't even know of a source of blanks. This is the same locksmith who copied keys on restricted blanks (which he had in stock) that operated bits of power station equipment from the 1950s. I have yet to find anyone who will duplicate my 11/10 key... Philip.

29 years

2
1
0 0

DEC keys and consoles

by carl.friend＠stoneweb.com

On Sun, 3 Aug 1997 09:44:26 -0800 (PDT), Mr. Shoppa mentions: > 1. The metal cylinder-lock keys. These are found on -8's, most > older (pre 11/24, 11/44, 11/84, 11/94) Unibux -11's, and some other > boxes. These are standard ACE cylinder keys, with pattern # XX2247. Other boxes: VAX-11/780, VAX-11/750, PDP-12, LINC-8 for starters. I'm positive there are others. Like the pdp11/40 KL-10 front-end... > you may need to be friendly with the locksmith - almost all ACE keys > are stamped "DO NOT DUPLICATE" If you produce the lock that the key is for, I believe the smith's objection may be moot. I've got several copies floating around that fit every DEC machine in my collection. They're not hard to come by. I believe the "DO NOT DUPLICATE" is valid only if you can't prove you own the matching lock. > The non-cylinder keys, found on only a few CPU boxes (like the 11/10). > I don't know where to find these... Again, take the lock mechanism to a good locksmith; he'll be able to make a new key for it by examining the tumblers. Of course, as in your case the key is broken off in the cylinder, the smith's job will be _much_ easier. ______________________________________________________________________ | | | | Carl Richard Friend (UNIX Sysadmin) | West Boylston | | Minicomputer Collector / Enthusiast | Massachusetts, USA | | mailto:carl.friend@stoneweb.com | | | http://www.ultranet.com/~engelbrt/carl/museum/ | ICBM: N42:21 W71:46 | |________________________________________________|_____________________|

29 years

1
0
0 0

DEC keys and consoles

by ard＠siva.bris.ac.uk

>There are three sorts of commonly-found DEC keys: > >1. The metal cylinder-lock keys. These are found on -8's, most older (pre Didn't the 8/a have a PDP11/34-style knob for the power switch and no key at all? >11/24, 11/44, 11/84, 11/94) Unibux -11's, and some other boxes. These >are standard ACE cylinder keys, with pattern # XX2247. Any competent >locksmith ought to be able to make one of these for you (though you >may need to be friendly with the locksmith - almost all ACE keys are >stamped "DO NOT DUPLICATE"). > >2. The plastic cylinder keys. As of a few months ago, you could still >order these from DECDirect (1-800-DIGITAL) - the part number is 1217119-01. In my experience, key [1] will fit locks designed for key [2], but not vice versa. I use the XX2247 that came with my 11/45 for the 11/45, the 8/e, the DECSA, the 11/24, the 11/44, the 11/730, etc. Since lock [2] has no pins, probably just about any Ace tubular key will fit it. Lock [1] is a 'real' lock, however. >> Also, I'm looking for information on connecting a console to the 11/10. >> The only place on this machine that looks like a likely candidate for >> console connection is a double height module (an M9970 Berg backplane >> connector) that is essentially unpopulated except for traces connecting >> the backplane to a single Berg connector. Is this the serial interface? >> If so, are there any configuration options (on another board), or am I >> stuck using what I assume is a fixed 110 baud 20 mA current loop interface >> (or digging up something else, such as a DL11-W)? > >I'm not sure what the answer to this is. I thought the standard >console interface on a 11/10 was a DL11-W. Have you tried asking >on "vmsnet.pdp-11" on Usenet? Not at all : Both the 11/10 and 11/10S have a console port on the CPU board. On the 11/10S it's possible to disable this (fit/remove a link on one of the boards), and use a DL11 of some flavour instead. On the 5.25" box, the console port is the 40-pin BERG on the back of the CPU under the power cable. It's cabled to the backplane, where it is connected to the appropriate pins on the CPU board. I don't own a 10.5" 11/10, but I have worked on one. From memort, there is, indeed a dual-height card which contains the console connector (40 pin BERG) and no logic. Can't remember the M-number, and my prints are at home. It's the standard DEC serial connector. Current loop is certainly there, and I think at least one of the TTL and/or EIA connections are there as well. This may depend on which CPU board set you have, however. I seem to recall pinouts/cable lists are on one of the PDP_8_ web sites. 11/10's use an RC clock for the baud rate generator. It's tweakable by a preset on one of the boards - check it at pin 40 of the UART (the only 40 pin chip in the CPU), and set to 16 times the baud rate. I think the 11/10S uses an Xtal clock, and there's a switch to set standard rates. The RC clock does 110 baud as standard, but can be tweaked at least to 300 baud. You can change (reduce) the timing capacitor to get higher rates, of course. > >Tim. -tony

29 years

2
1
0 0

Mainframe FS

by idavis＠comland.com

I don't know how old this is, or if it qualifies as classic, but I saw this on the local austin.forsale newsgroup. ============================================== Subject: Mainfame for trade STILL!!! From: Scratch <scratch(a)tab.com> Date: 1997/07/28 Message-Id: <33DCB872.6B74(a)tab.com> Newsgroups: austin.forsale [More Headers] I have a UNYSIS 2200/400 mainframe with 1210lpm impact printer and 6' hard disk tower with 10- 8" 1 gig Fujitsu drives. I can't seem to sell it so I will offer to trade it for anything MAC. QuadraAV or better. Or Sony 17" + monitor. -- Ron E. Marks scratch(a)tab.com http://www.tab.com/~scratch/home.html Austin, Texas ============================================ Hope this helps someone. Isaac Davis | Don't throw out that old computer, idavis(a)comland.com | check out the Classic Computer Rescue List - indavis(a)juno.com | http://www.comland.com/~idavis/classic/classic.html

29 years

5
7
0 0

MicroVAXen rescue

by kyrrin＠wizards.net

At 00:02 03-08-97 PDT, you wrote: >Date: Sat, 2 Aug 1997 06:46:19 -0400 >From: Jeff Hellige <jeffh(a)unix.aardvarkol.com> >To: classiccmp(a)u.washington.edu >Subject: MicroVax II >Message-ID: <199708021046.GAA13569(a)unix.aardvarkol.com> >Mime-Version: 1.0 >Content-Type: text/plain; charset="us-ascii" > > Well, it looks like I may be rescuing, or at least try to, a >MicroVax II on monday. There is a local business, about 30 miles from here, >that wants to dispose of one, and I got contacted to try and rescue it. >According to the guy I talked to, it has 2-35meg HD's, and 5meg of RAM in >it, and I'd just be getting the main system unit. Could someone give me >some general info on this machine, such as a guess as to the weight of it? Weight: About 40-50 lbs. Not bad at all, really. Some PC full-towers tip the scales around there. Sizewise, they're about as tall as a full-tower, but deeper and skinnier. You can probably lift one in your arms without a huge problem. With the hardware that's in it, you could easily run OpenVMS, MicroVMS, regular VMS (I think -- someone check me on that, please?), Ultrix, or NetBSD. I know the guy I wrote to said there were no docs or diags with it, but... if by some miracle he was wrong, I'd like to get a copy of any diagnostics that you might get with it. Best of luck, and thanks for responding! -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin(a)wizards.net) http://www.wizards.net/technoid "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..."

29 years

3
3
0 0

Televideo TS1603

by dastar＠crl.com

I got a nice system for free today from a nice old couple who run a thrift shop that they are closing down. Its a Televideo 1603. What's interesting about this system for one thing is that it was made by Televideo, whom I thought only made terminals. It has two 5.25" floppies integrated with a green monochrome monitor on a swivel armature and a detached keyboard. On the back are two DB-25 serial ports, a D-type connector RS-422 port, a telephone jack for a mouse (which I didn't get), and two dipswitch blocks. Inside it has an 8088 and a 6502! I was talking to Doug Coward tonight about it and he suggested that the 6502 was for the terminal operation, and the 8088 was actually the main processor. This makes sense, but I was wondering if anyone knew more about it. When it boots it says on the top line of the screen: TS-1600/1603/1603H POWER ON DIAGNOSTICS Z2.2 then it says below that: RAM TEST IN PROGRESS..... then changes to: FLOPPY DRIVE TEST IN PROGRESS..... at which point it turns on the floppy drive for a few seconds, then goes to: WAITING FOR HARD DISK..... Inside there is a multi-pin connector which I'd assumed was for a hard-drive but there was no cable for it. I didn't write down the number on the WD controller chip. I think perhaps the RS-422 port is where you'd hook the hard drive to. Anyway, after it doesn't find a hard drive, it clears the screen and becomes just a dumb terminal. Doug suggested I try booting an old version of DOS or CP/M+ on it. Any information on this would be appreciated. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

3
3
0 0

Warehouse Sale...

by foxnhare＠goldrush.com

Well went out there and picked through stuff again... Lets see today's tab was $30 for: 2 monitors (1702 & CM-141, both Commodore color composite/split composite) early VIC-20 (with the older 9v only adapter) Jupiter Lander Cart for VIC-20 Commodore 4022 Tractor Printer (IEEE-488) Commodore 4040 dual disk drive Commodore PC-40 III enclosure (still has motherboard (drives have been removed) Box o' cables & stuff including IEEE-488 cables, video cables, serial cables, a couple epoxy brick supplies, a pair of atari paddles and a pair of atari driving controllers. There is still have at least a dozen PETs there but I havent the space for more (hopefully I'll make more room before the sale is over...) Also a bunch of 1702s and CM141s, and lots of 64s, VIC-20s and 1541s... Other computers of note... No apple ][s Enrico, and I saw someone pick up the two ][c's for $5 each. There were a couple Compupro 8/somethings.. They looked heavy (given one was opened and I saw one of the biggest transformers I have ever seen), had a about 8 or ten of cards in it... the Osbornes are still there... ALOT of stuff, more then I could report. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- On a side note, recently I have been fortunate in finding alot of low density disks (5.25 and 3.5") at thrift stores for less then I can get them bulk (from $1 to $2 a package of 10 or more), many of which haven't even been used. Those of us with computers requiring such disks sould make sure to check for them during your thrift shopping. :) Larry Anderson -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare/ Call our BBS (Silicon Realms BBS 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

29 years

2
1
0 0

Televideo TS1603

by allisonp＠world.std.com

<recollection that 422 and 423 are the same, and 423 definitely is <balanced rs-232, unless I'm completely off). RS422 is balanced pair, 423 is a subset of 232 usually used with RJ style connectors. Allison

29 years

1
0
0 0

Free Computer Books & Stuff!

by sinasohn＠crl.com

At 08:23 PM 7/26/97 -0700, you wrote: >TRS-80 Model 100 Manuals: >These are photocopies of the originals but are bound together like real >manuals. Service Manual, Owner's Manual and 2 little Quick Reference >manuals. >Shipping is $2.25 book rate. If these are still available, I'd love to take them off your hands! (I have three m100's and only 1 owner's manual; none of the others.) Thanks! --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

29 years

6
6
0 0

Litton Industries's Monrobot XI?

by dbetz＠xlisper.mv.com

Has anyone ever heard of the Litton Industries's Monrobot XI? It's the first computer I ever programmed. This was back around 1967. It was a machine built into a desk with an electric typewriter and a papertape reader. I'd love to find one or any information about them. I've got an old programming card for Quickcomp, an assembly level language for it but that's all. I'd also like to find an IBM 1620 although that machine is probably too big for the space I have available. -- David Betz dbetz(a)xlisper.mv.com DavidBetz(a)aol.com (603) 472-2389

29 years

1
0
0 0

CLASSICCMP digest 132

by kyrrin＠wizards.net

At 00:02 02-08-97 PDT, you wrote: >Date: Fri, 1 Aug 1997 13:43:28 +0000 >From: jpero(a)mail.cgo.wave.ca >To: classiccmp(a)u.washington.edu >Subject: SCSI to SMD convertor board? was: Re: Mainframe FS >Message-ID: <199708011741.NAA13904(a)mail.cgocable.net> >MIME-Version: 1.0 >Content-type: text/plain; charset=US-ASCII >Content-transfer-encoding: 7BIT > >Well, I ask: > >Does there is a device already invented to use common SCSI to drive >SMD drives in between? <snip> Not foolish at all! ;-) There is indeed at least one SCSI/SMD bridge board I know of. Adaptec made them, but they're not easy to find. Model number was ACB-5580. I have exactly ONE of these that I need to hang onto to test drives. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin(a)wizards.net) http://www.wizards.net/technoid "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..."

29 years

3
3
0 0

MicroVax II

by jeffh＠unix.aardvarkol.com

Well, it looks like I may be rescuing, or at least try to, a MicroVax II on monday. There is a local business, about 30 miles from here, that wants to dispose of one, and I got contacted to try and rescue it. According to the guy I talked to, it has 2-35meg HD's, and 5meg of RAM in it, and I'd just be getting the main system unit. Could someone give me some general info on this machine, such as a guess as to the weight of it? Thanks. Jeff jeffh(a)unix.aardvarkol.com ---------------------------------------------------------------------------- ----- Amiga enthusiast and collector of early, classic microcomputers http://www.geocities.com/siliconvalley/lakes/6757

29 years

2
1
0 0

Impossible? Not!

by kyrrin＠wizards.net

Someone sent me an E-mail not long ago that, in a very confident tone, advised me that my quest to find an RRD40 or RRD50 would fail, as the controllers were 'impossible' to find. Never say 'Impossible!' to a technoid. ;-) I just closed a deal for TWO RRD40 CD drives, one controller, cabling, and technical manual, all for $65 + shipping & COD charge. As a point of interest, another company out of Chico, CA offered me an RRD50 for $40, and a controller for $125! (sheesh!) I've told them (politely) no, thanks, on the controller. However, it occurs to me that there may not be any difference in the controller for the RRD40 and RRD50. Allison or Tim? Is this, in fact, a true statement? Can either drive be used with the M7552 controller? If so, I'll just order the drive from them and hunt around for another controller later. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272) (Hamateur: WD6EOS) (E-mail: kyrrin(a)wizards.net) http://www.wizards.net/technoid "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..."

29 years

2
1
0 0

TRS-80 Info

by jeffh＠unix.aardvarkol.com

At 07:52 AM 8/1/97 -0600, you wrote: >That machine is an 80186! (Nope, that's not a typo.) It's really not >'IBM' compatible, although it runs MS-DOS 2. That machine obviously must >have the color card, if it comes with the CM-1 (I'd love one of those.) >The 2k sported several big enhancements over the PC. The faster 186, 720k >floppies (DSQD), 600x400x16colors, full 16 bit expansion slots. Overall >it's a really cool machine. That's probably why it didn't survive. As long as programmers used BIOS calls instead of writing directly to the video hardware and such, the 2k would run a lot of PC software just fine. I've got a list around here somewhere of what PC software was known to work with it. I ran the basic PC versions of Wordstar and Norton Utilities on mine for a long time, though things such as Framework required special video drivers. Also, communications programs didn't like the machine, unless they used a fossil driver to access the serial port, such as GTPower. I enjoyed making new fonts for the machine to boot into, as it's system font was loaded into RAM on startup, making it quite customizable. As for the CM-1, that is one nice monitor. I never could find one though, so I ended up using an early NEC Multisync on mine for a while. >Some had a hard drive. If it was factory installed, the nameplate should >read 'Model 2000HD.' You might also look for any labelling on the back. >The HD controller might have some sort of stickers on it. (The cards are >the long, 1/2" high metal strips on the back.) My 2k started life as a dual-floppy model, and then I added a Seagate ST-225 internally later. I was kind of a pain finding the piggyback hard disk power supply and mounting bracket for the drive though! I also had the color video board, 640k RAM, and a clock/mouse board. Jeff jeffh(a)unix.aardvarkol.com ---------------------------------------------------------------------------- ----- Amiga enthusiast and collector of early, classic microcomputers http://www.geocities.com/siliconvalley/lakes/6757

29 years

1
0
0 0

Boards I bought.

by dseagrav＠bsdserver.tek-star.net

For $18 I got... a DW11-A Unibus to Q-Bus interface! One quad height and one double height board. I'm assuming the Quad-height one is the Unibus end. All I need are the ribbon cables to connect them... and an M8012-YA Qbus Terminator/Bootstrap. What does this boot?

29 years

3
4
0 0

Boards I bought.

by allisonp＠world.std.com

Mr Seagraves finds... <and an M8012-YA Qbus Terminator/Bootstrap. What does this boot? It has diags and boot for RK05, RL01/2, RX01, RX02, BDV11 roms(optional) and DECNET boot via DLV11e/f or DUV11. This assumes 23-045E2/23-046E2 EProms. Allison

29 years

1
0
0 0

Warehouse Sale and PCjr query.

by foxnhare＠goldrush.com

RE: Enrico's Query about Apple IIs... I looked the first time I went to the sale and found mainly ][ pluses, a couple ][es (one with extended keyboard, a couple ][cs, and a few ]I[s... But If I see a ][, I'll see about getting it... RE: Marvin about PCjr help... I think the customer has a PCjr or Two and is looking for expansion stuff and programs for it... I dunno, best I could suggest to her was an area thrift store which always seems to have PCjrs coming in... :/ Larry Anderson -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare Call our BBS (Silicon Realms BBS 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

29 years

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Some machines available...

by kevan＠motiv.co.uk

Hi all, I recently got an email offering me these computers... > If you ship it you can have them. I havev one of the largest > commulations of computers and related in the north east US. I am culling > out so this is an opportunity to get lots of stuff. How about the whole > line of IBM xt, at ps2 model 30, 55, 50 , 50z,70 just to name a few > come over or call or email me. holmstea(a)idt.net 802-985-8081 I am in > Vermont.USA I said I wasn't interested and in reply I got: > forgive me for being so presumptious I have also Heith H8 a DPS6 a > Charles River Universe 68, Nec starlets cpm, digital rainbows. digital > RAO80 zilog 8000 IBM system 36's lots more!!! If anybody is interested then contact him directly. -- Kevan Old Computer Collector: http://staff.motiv.co.uk/~kevan/

29 years

3
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Weekend haul

by 107765.1161＠compuserve.com

Message text written by INTERNET:classiccmp@u.washington.edu >The SX-64 documentation makes reference to a DX-64. What's that -- 2 drives?< That was the plan; however, the DX model was never released. There are reports of a few of them floating around, but probably prototypes or user-hacked versions.

29 years

1
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Hacking TI Calculator Interface

by rcini＠msn.com

On Thu, 31 Jul 1997 08:52:36 -0400 (EDT) John Ruschmeyer wrote: >>Two places to check out: http://www.ticalc.org news:bit.listserv.calc-ti I beleive there are plans floating around for a $5 interface cable. Also, lots of 3rd party apps for the '85.<< John: Thanks for the tip; I'll check it out. Last night, for those hardware-hackers out there, I started developing a level shifter using a Maxxim MAX232 chip which draws power from the DSR line and has a couple of low-power LED indicators. I'm just trying to fit it into a DB9 shell... ------------------------------------------------- Rich Cini/WUGNET e-mail: rcini(a)msn.com - ClubWin Charter Member (6) - MCPS Windows 95/Netowrking

29 years

1
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Model 100 Stuff: What's a DVI

by rcini＠msn.com

To all of those that asked what the Model 100 DVI is... Ths Disk-Video Interface is a rectangular box (mostly hollow), the size of half of a PC which enables the Model 100 to use 5-1/4" floppy disks and to hook-up to a standard composite monitor or a TV on channel 3 or 4. It could display 40x24 or 80x24 characters. Costing around $500, the unit typically (and I'd have to dig-out an old catalog to check; it's been a while) came with 1 or 2 floppy disk drives and had a built-in power supply. The companion monitor (an optional-extra) was a composite green-screen. The included diskette was for a simple disk-based DOS wedge for BASIC. Connection to the M100 was accomplished through a shielded, flat, 40-pin ribbon cable with a custom pin arangement that attached to the 40-pin DIP socket on the bottom of the M100. The standard DIP socket on the M100 was retrofitted with a ZIF socket to ease the stress on the cable. The insulation-displacement connector on the M100 side pearced the cable in a non-standard way, preventing meer mortals from making a cable on their own with parts from Digi-Key--I tried! BTW, replacements are $24 from Tandy Parts. As an aside, DOS disks are $5. As far as I know, the DVI came out before the other floppy drives for the M100, the PDD1 and PDD2. I hope that this clears things up. ------------------------------------------------- Rich Cini/WUGNET e-mail: rcini(a)msn.com - ClubWin Charter Member (6) - MCPS Windows 95/Netowrking

29 years

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Free Computer Books & Stuff!

by gmast＠polymail.cpunix.calpoly.edu

Still cleaning the closets. I'll be posting more stuff like this off and on for a while as I sort. All this stuff is free of charge! Of course you pay postage to where you live unless you want to drive to central California. TRS-80 Model 100 Manuals: These are photocopies of the originals but are bound together like real manuals. Service Manual, Owner's Manual and 2 little Quick Reference manuals. Shipping is $2.25 book rate. Apple Lot: Critic's Guide to Software for Apple and Compatible Computers Apple II Super Serial Card Manual Apple II 80-Column Text Card Manual Extended 80-Column Text Card Supplement Apple II The DOS Manual Applesoft II Basic Programming Reference Manual Shipping is $4.25 book rate Commodore Geos Lot: Looks like a set of GEOS 2.0 and 1.2 Manuals for 1.2 and 2.0 Deskpak Plus (six applications for GEOS) Deskpak Manual 25 Blank 5-1/4 disks Shipping is $2.75 book rate

29 years

1
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First Annual Vintage Computer Festival

by dastar＠crl.com

I've decided to go ahead with plans for the First Annual Vintage Computer Festival!!! This is a call to all parties interested in participating with the planning and development of the show. I have directed this e-mail to specific individuals in my local area (sorry if I missed anyone) as well as to the entire classiccmp group. I welcome your support and would appreciate if you who are local could pledge your help in developing and participating in the show. I also welcome and would appreciate the support of anyone not local to the San Francisco Bay Area who is interested in donating your time to the show. Please contact me if you are interested. I hope to assemble the core development team within the next week and to hold a kick-off party on Saturday, August 9th where a team will be assembled, the project will be discussed and team members will be assigned tasks. I am hoping to run the show during a weekend in the middle of October. Currently, as I have it layed out, there are a couple hundred man hours of work to be done in order to pull this off. I think with enough people committed, this can be pulled off in time to host the show by October. Please e-mail me if interested. Thanks! Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

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Lodi, CA: Computer Warehouse Clearance...

by foxnhare＠goldrush.com

About a month or so back I reported to you about one of the California central valley area's used computer stores doing a 'warehouse sale' every Saturday... Well they have lost their lease on their warehouse and are looking to clear it all out by the end of August. Details: The Computer Store running the sale is 'Allen's to Go' and are located at 13461 Highway 88 in Lokeford, their store phone number is (209) 727-0477. The sale is being held on Saturdays from 8:00am till Noon in a greenhouse at a former nursery. You can find it about 5 miles east of Lodi, Calif. on Highway 12; the address is 10400 Highway 12 (heading >from Lodi it would be to your right). Marie Templin, the owner who is usually there, said 'the more you buy the better price your gonna get.' Last week was the annoucement and business was slow that day so it hasn't been picked over much yet. What's there: - Alot of Commodore 64 and PET stuff retired from the Lodi Schools - Many old IBM and clone cases, power supplies, motherboards, drives (INCLUDING OLD HARD DRIVES, BRING YOUR LISTS GUYS!) - A small amount of some Mac related Jasmine Drives (external HDs, syquest, etc.) -lots of monitors in various states of repair and dis-repair -Old laser printers, old copiers, old phonographs, a couple microfiche readers, a couple projectors -dot-matrix printers, cables, etc. The three or so Osbornes are still there as well as all the Apple II+'s IIe's, IIc's, III's, drives, etc. You have until the end of August... Don't delay! Larry Anderson ------ P.S. Marie is looking for stuff/resources for a PC jr. owner... If you know of any let her know. ------ -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare/ Call our BBS (Silicon Realms BBS 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

29 years

4
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System/36 Hardware Key

by dseagrav＠bsdserver.tek-star.net

If I do buy this System/36, I need to be able to boot it. A key is needed to boot the computer. The key switch has 3 positions: Normal, Locked, and Service. The switch has to be in the Service position to boot. It's currently in the Normal position. There are 3 wires on the back of the keyswitch. One for each position, I think. Which ones would I cross to boot? +------- Wire one. Normal position. / \ +---------- Wire two. Locked position. \ / +------- Wire three. Service position.

29 years

1
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ATARI XE FS

by manney＠nwohio.com

Books, keyboard and manuals. ---------- > From: classiccmp(a)u.washington.edu > To: Manney > Subject: Re: ATARI XE FS > Date: Thursday, July 31, 1997 12:33 PM > > On Thu, 31 Jul 1997, PG Manney wrote: > > > I've been offered an Atari XE system (1987, I think). Works, as far as I > > know. > > > > $30 + S/H is wanted. Anyone want it? > > What stuff comes with that for $30? > > Sam > ---------------------------------------------------------------------------- --- > Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass >

29 years

1
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Info needed: PDP11/24 CPU switches

by jimw＠agora.rdrop.com

Header just about says it all. I'm trying to get an 11/24 fired up, and it seems to be somewhat single minded in what device it expects to boot on startup. Right now, its got an RL02 and RX02 on it and does not appear to be lookoing at either of them. So... does anyone have a handy reference to the configuration switches located on the CPU board which will define the boot (and other) options? Thanks! -jim --- jimw(a)agora.rdrop.com The Computer Garage - http://www.rdrop.com/~jimw Computer Garage Fax - (503) 646-0174

29 years

2
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I'm back

by FAIAZMC＠hsd.utc.com

It's about time. ---------- From: Bill Whitson To: Discussion re-collecting of classic computers Subject: I'm back Date: Wednesday, July 30, 1997 9:22PM You may not have noticed ;) but I've been too busy to do anything list-related for the last couple weeks. I'll catch up on the old messages soon. New stuff: 1. After a 2 week linux installation the classiccmp server is on-line (yeah, it was really ugly). Anyway we now have a couple gigs of storage space available. If you want to create anything for the web site I can provide space. The web site is now http://haliotis.bothell.washington.edu/classiccmp/ The ftp site is now ftp://haliotis.bothell.washington.edu/pub/classiccmp/ 2. I will be taking a week-long vacation in San Luis Obispo, CA in early september. There is a huge computer scrap-yard in the area that I will be checking out. If any of you local to the area would like to join up for that, let me know. Bill Whitson

29 years

1
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ATARI XE FS

by manney＠nwohio.com

I've been offered an Atari XE system (1987, I think). Works, as far as I know. $30 + S/H is wanted. Anyone want it?

29 years

2
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Weekend haul

by manney＠nwohio.com

I picked up an absolutely perfect Commodore SX-64 (used 5 times) and a VIC-20 with box and all flyers, etc (used once). I find the included stuff fascinating (almost as much so as the machines themselves) as they recapture the flavor of the era. The SX-64 documentation makes reference to a DX-64. What's that -- 2 drives? Also, the SX-64 refused to read (known good) disks at first, then read fine. Suppose a film had built up on the head, which the disks "scrubbed"? Anyone ever see that happen? Anyone want either? Make an offer.

29 years

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Anyone need Model 100 Stuff?

by rcini＠msn.com

I have a line on some Radio Shack Model 100 stuff in the Research Triangle Park area of North Carolina. The guy wants to sell ("no reasonable offer refused") the stuff in a lot, but I only need a few parts of it. Below is the list. If someone wants it (except the ones marked with "*"), let me know. ------------------------ Rich Cini/WUGNET <rcini(a)msn.com> - ClubWin Charter Member (6) - MCPS Windows 95/Networking ==============>>> The List Lots of Model 100 Stuff in Good Condition 2 Model 100's 24K- good condition 1 Portable Disk Drive 2 (*) 1 Disk Video Interface- New Condition 1 Modem Acoustic Cups (*) 1 Radio Shack CTR Tape Recorder (works well) 1 Service Manual and Tech Ref Manual (*) Miscellaneous software and accessories, cables etc.

29 years

4
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Hacking TI Calculator Interface

by rcini＠msn.com

On Thu, 31 Jul 1997 00:39:13 -0400, Roger Merchberger <zmerch(a)northernway.net> wrote: >>Use a diode to change the -12V to 0V, and resistors to change the +12V to +5V .. it helps to have a cable to test first for that one, tho. On the Tandy PDDs, the resistor value was 22K Ohms IIRC and any cheap .6V drop diode would do (read: 1N914 -- everybody's buddy)<< It's funny that you said this. I just looked at an RS-232 level shifter circuit on the MIT MiniBoard robotics controller that used a transistor, two LEDs and a handful of resistors to accomplish that, but it needs 5v to operate. Really what I need is a parasitic converter that's powered off of the serial port itself. I've seen this done with a MAX232 or a Dallas 12?? chip. Hmmmm, time to circuit-hunt. ------------------------------------------------- Rich Cini/WUGNET e-mail: rcini(a)msn.com - ClubWin Charter Member (6) - MCPS Windows 95/Netowrking

29 years

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Hacking TI Calculator Interface

by rcini＠msn.com

Hello, all: I know that this really doesn't fit here, since I only bought this calc yesterday, but I figure that someone here may know... I bought a TI-85 graphing calculator, and it has a 3-wire computer interface. It seems that for $40, you can buy a cable adapter to hook it to a PC's COM port. Software can be gotten from TI's Web site. I don't want to pay $40 for a DB-9 connector and a 3-wire headphone jack. I'm guessing that the interface is a software-handshaking 3-wire RS-232 setup, but before I hook something up to the calc, I wanted to ask if anyone has this calc and can shed some light on it. TIA! ------------------------ Rich Cini/WUGNET - ClubWin Charter Member (6) - MCPS Windows 95/Networking

29 years

3
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Honeywell Microsystem 6

by adam＠merlin.net.au

Hi! I recently picked up one of these beasts at a second-hand store, and managed to assemble her and get her running. However, I have been unable to find out anything about them other than they run the 8086 processor. Can anyone tell me something more? Like what the OS is, when they were made, and what tehir arcitecture was? Honeywell, unsuprisingly, couldn't help, and I found nothing on the web. Thanks heaps, Adam.

29 years

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Some More Stuff on AuctionWeb

by gmast＠polymail.cpunix.calpoly.edu

A few more items I listed in the auction. Not much interest in the Mac+ logic board, Mac SE supply or the Disk II card so they might be THE deal. Make sure you read the descriptions on the web page before bidding. Apple Imagewriter II Current bid: $31.00 Auction ends on: 08/03/97, 13:22:12 PDT http://www2.ebay.com/aw/itemfast.cgi?item=lfc15929 Apple Disk II Interface Card Current bid: $2.50 Auction ends on: 08/03/97, 13:46:46 PDT http://www2.ebay.com/aw/itemfast.cgi?item=scn04925 **Brand New** Macintosh SE Main Logic Board! Current bid: $14.00 Auction ends on: 08/03/97, 13:53:39 PDT http://www2.ebay.com/aw/itemfast.cgi?item=cxa461 Macintosh SE Power Supply Bidding starts at: $1.00 Auction ends on: 08/03/97, 13:58:13 PDT http://www2.ebay.com/aw/itemfast.cgi?item=kdc0985 Apple Imagewriter I Spare Parts Kit (Factory) Current bid: $11.50 Auction ends on: 08/03/97, 14:18:56 PDT http://www2.ebay.com/aw/itemfast.cgi?item=dey14024 Macintosh Plus Main Logic Board - New! Bidding starts at: $2.00 Auction ends on: 08/05/97, 20:23:05 PDT http://www2.ebay.com/aw/itemfast.cgi?item=ujt40487 Thanks! Greg

29 years

1
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I'm back

by bw＠booster.bothell.washington.edu

You may not have noticed ;) but I've been too busy to do anything list-related for the last couple weeks. I'll catch up on the old messages soon. New stuff: 1. After a 2 week linux installation the classiccmp server is on-line (yeah, it was really ugly). Anyway we now have a couple gigs of storage space available. If you want to create anything for the web site I can provide space. The web site is now http://haliotis.bothell.washington.edu/classiccmp/ The ftp site is now ftp://haliotis.bothell.washington.edu/pub/classiccmp/ 2. I will be taking a week-long vacation in San Luis Obispo, CA in early september. There is a huge computer scrap-yard in the area that I will be checking out. If any of you local to the area would like to join up for that, let me know. Bill Whitson

29 years

2
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Hacking TI Calculator Interface

by zmerch＠northernway.net

Whilst in a self-induced trance, jpero(a)mail.cgo.wave.ca happened to blather: >> I know that this really doesn't fit here, since I only bought this calc >> yesterday, but I figure that someone here may know... >> >> I bought a TI-85 graphing calculator, and it has a 3-wire computer interface. >> It seems that for $40, you can buy a cable adapter to hook it to a PC's COM >> port. Software can be gotten from TI's Web site. >> >> I don't want to pay $40 for a DB-9 connector and a 3-wire headphone jack. I'm >> guessing that the interface is a software-handshaking 3-wire RS-232 setup, but >> before I hook something up to the calc, I wanted to ask if anyone has this >> calc and can shed some light on it. >Sorry to throw wet towel on you...those "dongle" interface kit guess >what has little complex board inside. Real sucker really. > >We did that this year to see if we can do that too. :) Hold on there, pardner! This isn't nearly as complex as you think. If the TI is anything like my Casio FX9700G graphic calculator, with the funky 3-wire headphone hookup, you can most likely do it with 1 or 2 chips or even just some diodes and resistors. What it is, is the interface is an *almost* standard RS-232 interface. Speed and all is normal, but it prolly only works on TTL levels. The PDDs (Portable Disk Drives) from Tandy to be used on their old, non-MS-Dos laptops did the same thing... used RS-232 but only at +5V and 0V levels. Use a diode to change the -12V to 0V, and resistors to change the +12V to +5V .. it helps to have a cable to test first for that one, tho. On the Tandy PDDs, the resistor value was 22K Ohms IIRC and any cheap .6V drop diode would do (read: 1N914 -- everybody's buddy) Otherwise, just design a small, self-powered 1488/1489 box to convert the levels, and you're off and running. I was planning on doing this for my Casio, but haven't had the time just yet. (Maybe I can just use my TPDD cable... hooking up the appropriate wires??? Something to think about.) Anyway, I hope this helps! Roger "Merch" Merchberger -- Roger Merchberger | If at first you don't succeed, Programmer, NorthernWay | nuclear warhead disarmament should *not* zmerch(a)northernway.net | be your first career choice.

29 years

1
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Apple Lisa Owners??

by bede0005＠gold.tc.umn.edu

Hi Kai:: I don't remeber if I got back to you about the Lisa. If I did, I guess just ignore this post. You had mentioned that you do not have access to the Office system. I have a set of disk images of the Office system as well as the workshop that I can email you if you would like. Also, I have information on removing the serialization if you already have a serialized set you would like to install. Rob

29 years

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(fwd) FS: Commodore 8032 (fwd)

by dastar＠crl.com

Did anyone see this? Sounds like a nice system. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass ---------- Forwarded message ---------- From: jkeane(a)j51.com (Joseph Keane) Subject: FS: Commodore 8032 Date: Tue, 29 Jul 1997 02:07:36 GMT For Sale: Commodore 8032 Computer (80 column screen - 32k memory) Free with computer: 2031 Single Disk Drive - Works except occassionally hangs up. All original manuals. Original owner - kept under dust cover, in great shape, with original boxes, and lots of disks, games, and word processor, with instructions. Great addition to your Commodore collection! Asking $40.00 for everything. Pick up only - Rockland County, New York. E-Mail for more information to: jkeane(a)j51.com -- Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

1
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Zenith ?????

by dastar＠crl.com

On Wed, 31 Dec 1969, Marvin wrote: > Among the things I picked up yesterday was a Zenith Data Systems > keyboard, model ZTX-1-A. The top of the keyboard looks like a regular > keyboard but the back has an RCA jack labeled "Video Output", a 40 pin > header labeled "Printer", a pushbutton labeled "Save", a db9 male > connector labeled "Power", two phone jacks labeled "Phone Connect" and > "Wall Connect", and a switch near the phone jacks labeled > "Multiline/Single Line". Anyone have any idea what this thing is? Find the power supply for it, hook it to a TV and boot it up. Sounds like a whole computer! Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

4
6
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What is this machine? (Pertec)

by scott＠saskatoon.com

I'm curious if anyone knows what this machine is. (What OS it runs, etc.) It's a Pertec machine with a 68020, Floppy, SCSI?, looks like 4MB RAM, and serial(?) ports on the back. The power supply has a "ST-100" stamped on it (along with a June 1988 date) The backplane itself has ST-98 Rev 003 written on it. The main sockets on the backplane are two 60-pin slots. It claims to be a "3226", according to the plate on the back. That info also says it's of type "P7005". I haven't seen the machine... this is info I've collected from emailling the owner. (I guess this machine is a year too new for this list. I hope you'll forgive me.) thanks ttfn srw

29 years

4
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More Altair Scans

by rcini＠msn.com

Hello, all: Just an update on the Altair info that my friend is scanning for me. Below is the list. He is preparing a ZIP disk for me containing the files in the PDF forman. I'll have it in a couple of weeks. He also said that he wants to scan other materials that he has, such as Altair Basic and Extended Basic manuals, the Assembler manual and others, plus the MITS "Computer Notes" as well as material from other manufacturers. I told him that I want it all (like I would really say no?) Holy, cow, what a list... ------------------------ Rich Cini/WUGNET <rcini(a)msn.com> - ClubWin Charter Member (6) - MCPS Windows 95/Networking ==============>>>> The List Altair 8800 Stuff Altair 8800 Operator Manual op_man.pdf 5.49MB Altair Audio Cassette Interface 8800-acr.pdf 2.19MB Altair 4K Static RAM 8800-4mcs.pdf 1.28MB Altair 4 Parallel I/O 8800-4pio.pdf 1.77MB Altair Vector Int. & Real Time Clock 8800-virtc.pdf 1.93MB Altair 8800B Manual All Sections (338 pgs.) 8800b.pdf 26.37MB Front/Index 8800b-i.pdf 515KB Intro (Sect.1) 8800b-1.pdf 558KB Op. Guide (Sect.2) 8800b-2.pdf 6.25MB Theory of Op. (Sect.3) 8800b-3.pdf 8.51MB Troubleshooting(Sect 4) 8800b-4.pdf 3.78MB Assembly (Sect.5 8800b-5.pdf 6.31MB Parts List (App. A) 8800b-a.pdf 438KB Processor Technology 4K Static RAM 4kra.pdf 445KB Processor Technology MotherBoard pt_mb.pdf 373KB Cromemco Bytesaver bytsavr.pdf 1.22MB

29 years

2
1
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DG1 hard drive

by jrice＠texoma.net

Sam, do you know what hard drive a Data General One uses? James Rice

29 years

1
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Right idea, wrong item...

by B.Lane＠PSS.Boeing.com

I hate it when this happens... As it turns out, it's not an RRD40 CD-ROM drive I should be after. According to a manual I just picked up, it's the RRD50. With that in mind... Allison? Tim? Would either of you happen to have a line on a DEC RRD50 drive and controller? And no, Allison, I've not given up on MOPbooting. It would just be a Nice Thing if I didn't have to depend on that every time I needed to do a load. Thanks in advance. ==Bruce 'Why me?' Lane (kyrrin(a)wizards.net)

29 years

1
0
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I need a Commodore Plus/4 Video Cable

by gmast＠polymail.cpunix.calpoly.edu

To whomever needs that cable, I have one (maybe 2) for a C-64. $3 (postage) and it's yours. Greg

29 years

1
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New mailing list for old electronic calculator collectors.

by kevan＠motiv.co.uk

Hi all, I have created a mailing list for the discussion of old electronic calculators. To subscribe send a message to: ecalc-request(a)lists.heydon.org with the single word 'subscribe' in the body of the message. Once you are subscribed you may send submissions to: ecalc(a)lists.heydon.org Regards -- Kevan Old Computer Collector: http://staff.motiv.co.uk/~kevan/

29 years

1
0
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Epson PX-8, no power up

by dastar＠crl.com

On Wed, 31 Dec 1969, Marvin wrote: > I just plugged in the Epson PX-8 and the only thing that happens is the > LCD screen turns on, but nothing else. I plugged in a power supply to > charge the battery (and then checked the battery voltage) so that is not > the problem. I also pressed both the outside reset switch with no > response, and then pressed the "master" reset switch in the compartment > on the bottom of the machine, again with no response. When the bottom > was opened, there was space for two ROMs; the center one was empty and > the one to the side had an Epson ROM of some sort installed. There was Marvin, the socket labelled ROM1 should have an Epson ROM in it, and as far as I know it is the O/S ROM. ROM2 socket on mine has Portable WordStar and is not necessary to run the system as far as I know. In fact, I just pulled the ROM on mine and the system still came up (BTW, those ROMs are neat...they have a little plastic bucket that the ROM sits in that makes it easy to pull them out and re-insert them). My battery is worn and does not hold a charge anymore, but it will recharge and operate for a little while (how long I don't know since I never have it on for more than a few minutes) but as soon as I plug in the power supply it works fine. Inside the ROM compartment you will notice an "Initial Reset" button. Have you tried pressing that? There is also a dip switch inside (SW4)...my settings are as follows: 1:ON 2:ON 3:ON 4:ON 5:OFF 6:ON 7:OFF 8:OFF There is a smaller compartment on the bottom near that back of the unit...did you make sure there is a ROM in there? Is it seated correctly? Hope this helps in some small way. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

3
2
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Zenith ?????

by groberts＠mitre.org

i believe it's a "dumb terminal" that uses NTSC video - probably emulates either the H19 or VT100 (or both). i think the "save" button is used in configuring (and saving) terminal options. - glenn At 04:00 PM 12/31/70 +0000, Marvin wrote: >Among the things I picked up yesterday was a Zenith Data Systems >keyboard, model ZTX-1-A. The top of the keyboard looks like a regular >keyboard but the back has an RCA jack labeled "Video Output", a 40 pin >header labeled "Printer", a pushbutton labeled "Save", a db9 male >connector labeled "Power", two phone jacks labeled "Phone Connect" and >"Wall Connect", and a switch near the phone jacks labeled >"Multiline/Single Line". Anyone have any idea what this thing is? >Thanks. > > > +=========================================================+ | Glenn F. Roberts, Falls Church, VA | Comments are my own and not the opinion of my employer | groberts(a)mitre.org

29 years

1
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Some Great deals on AuctionWeb

by gmast＠polymail.cpunix.calpoly.edu

> On 21 Jul 97 at 10:15, Greg Mast wrote: > > Apple III External Floppy Drive **PHOTO** > I noticed the current bid for this was $103.50. I'd love to hear if > you actually collect that much for it. I can't believe someone > actually wants it THAT bad. Me too. I figured $20-$30. But who am I to complain? But like they say, talk is cheap. We'll see if they pull through. I had a Radio Shack hard drive that was bid up to $150 a while back. Both high bidders flaked and I relisted it and sold it for $30. Go figure. On the other hand, I had a garage sale last weekend. Not one person interested in the piles of Apple, Commodore, Atari stuff. I mean, if you guys aren't going to garage sales to buy stuff, you're missing a lot of deals. Most of the stuff at the Goodwill has an old garage sale sticker on it.

29 years

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Bad Joke. Bad Bad Bad! Front panel for a PC?

by IVIE＠cc.usu.edu

> I.E Making a new ROM. Well, I do have the IBM PC manual that has the ROM > unassembled in it... I thought those panels worked by playing with the > lines on the CPU. Sounds like more work than I have time to do now. I do > know that E11 lets you pull this off via the paralell port. It would be a > neat trick, if I had time to work at it. They do work by playing with the lines on the CPU. However, the 8088 (and most microprocessors) do not allow you to get to the internal registers >from the bus. It works on the PDP-11 because the registers have a bus address; i.e., you can DMA into registers. This stopped being possible on the microprocessor implementations of the the PDP-11, which is where MicroODT fills in. Roger ivie ivie(a)cc.usu.edu

29 years

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10base2

by allisonp＠world.std.com

Quick question: 10base2 (cheapernet) thin coax eithernet: What is the minimum cable length? Everything I have has the maximum and I remember there is a minimim. Allison

29 years

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10base2

by thedm＠sunflower.com

Minimum is 1 meter, max is 185m 25ohm terminator at each in, 48 drops per segment. ---------- > From: Allison J Parent <allisonp(a)world.std.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: 10base2 > Date: Monday, July 28, 1997 1:00 PM > > Quick question: > > 10base2 (cheapernet) thin coax eithernet: What is the minimum cable length? > Everything I have has the maximum and I remember there is a minimim. > > Allison

29 years

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Bad Joke. Bad Bad Bad! Front panel for a PC?

by allisonp＠world.std.com

<but then again, I do have a PC-XT motherboard to waste... It would be <interesting... Is it possible? It would score high on the nerdity <scale... The 8088 would be difficult to make a hardware style front pannel like the PDP-8e or 11/70s had but a software front pannel is doable with a spare parallel port or homebrew IO card. It would have to ahve some software to dump registers to lights based on switchs, load registers from switches (at least 16 of them for data/addresses) also other things like single stepping and single instruction would have to be handled. The other possibility is an embedded ODT like the 11/03, 11/23 or later q-bus PDP-11s have. IT allows memory display, changing locations, halting, running from an address and display/load registers from a terminal(console). Allison

29 years

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VIC-20 Kernel Project

by rcini＠msn.com

On Sun, 27 Jul 1997 14:13:00 -0500 (CDT), Brett <danjo(a)xnet.com> wrote: >>Unless someone can verify the legal status of the copyrights on the ROMs. >>I am a little busy setting up Rescue trips to dig much further into THAT >>moras of mumbo-jumbo. I got my copies of the ROM images off of ftp.funet.fi. It seems that this Finland ftp site has boat loads of Commodore software, including the ROM images to be used for emulators (I used mine for the PC-VIC emulator and as a known-good ROM image to compare my Kernel assemblies with). If my wife really understood what I was doing with the VIC Kernel project, she'd probably say "Why??" too. But, it's really more of saying to myself that I reverse-engineered object-code into a recompilable file and that I learned something than anything else. Since I can't yet really own the source code, I made my own <g>. ------------------------------------------------- Rich Cini/WUGNET e-mail: rcini(a)msn.com - ClubWin Charter Member (6) - MCPS Windows 95/Netowrking

29 years

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I need a Commodore Plus/4 Video Cable

by 107765.1161＠compuserve.com

Message text written by INTERNET:classiccmp@u.washington.edu >>The 8-pin cable for the Plus/4 is exactly the same as the 8-pin cable for the (more common) Commodore 64 or 128. << >> Finally, if you want to hack one together, I can provide the pinout.<< >I'd like the Pinout!!< First, the Commodore 8-pin DIN connector is the unusual one; the "Hershman" or something. This means that pins 7 and 8 are not in the same positions as on the common 8-pin DIN connector. (Look at the port to confirm pin placement; I'm not sure the chart below is correct.) One easy solution here is to cut pins 7 and 8 off a common 8-pin connector; they aren't needed for anything. Or as explained below, you can use a common 5-pin DIN connector; but, if you're hooking to a separated color composite monitor, your picture won't be QUITE as sharp. Looking at the port on the back of the computer, OR at the BACK of the DIN plug (the side you'll attach the wires to), the pinout is: 8 7 3 6 1 5 4 2 Connections are: 1 Luminance 2 GRND 3 Audio 4 Color Composite 5 Audio In (not used) 6 Chroma 7 NC 8 NC Hook up pin 3 for audio in all cases. As to video, if you're using a separated color composite monitor, do separate RCA plugs for 1 and 6. If you're using a color composite monitor with the single input, use 4. If you have monochrome, use 1. If you want to use a 5-pin DIN connector with a separated color composite monitor, do separate RCA plugs for pins 1 and 4.

29 years

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I need a Commodore Plus/4 Video Cable

by 107765.1161＠compuserve.com

Message text written by INTERNET:classiccmp@u.washington.edu >> >Does anyone have a Commodore Plus/4 video cable for sale or trade?<<< >> (the early models had a 5-pin port) will also work on a Plus/4. In fact, I think most home computer manufacturers (Atari, TI) used 5-pin cables with the composite, sound and ground on the same pins, so you could try one of<< >I have a TI/994a converter box...will this work?< The TI 99/4a doesn't have an internal RF modulator; that's what the box does. So even on a TI, you only need the box (and can only use the box) if you're hooking to a TV. The Plus/4 has an internal RF modulator, so if you want to hook to a TV all you need is an RCA-RCA cable and an ordinary game/TV switch. I *assumed* (and we all know what happens when we "ass u me") that when you said "video cable", you meant a monitor cable. As I said, it's the same as the C64 and some other computers use, so it shouldn't be all that rare. I'm sure anybody could sell you one (including me) for $5 and postage. Gil Parrish 107765.1161(a)compuserve.com

29 years

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VIC-20 Kernel Project

by rcini＠msn.com

On Fri, 25 Jul 1997 15:51:33 -0400, Gil Parrish wrote: > For the last two years, I have been working on making a recompilable version of the VIC-20 Kernel ROM.< >>OK, I'm not afraid to ask the amateur question: Why? >>I'd love to see someone with good programming skills write some >>sophisticated software for the VIC-20, likely requiring at least a 16K >>expander or something. If your project will help lead to that, I'm all >>for it. Well, Gil, I used it as a learning project. When I first got my VIC-20 in 1981/2, I was in junior high school. I programmed mostly in BASIC, and did a little ML. After I graduated, I got involved in too many other things: my fraternity, my wife, a job, the Mac, and then Windows hacking. When I bought my house two years ago, I moved all of my old machines and started playing with them again. So...I wanted to re-learn 6502 ML and the VIC/CBM architecture. I thought that documenting the VIC Kernel (some thing that I had never seen in print) would be a nice project. Also, I thought that it sould be good to have recompilable Kernel code, if I ever needed to recompile it. Documenting the Kernel enables the programmer to understand what's in the "black box." This is why AndrewShulman and Matt Pietrek have made a fortune in books detailing the internals of Windows. ------------------------ Rich Cini/WUGNET rcini(a)msn.com - ClubWin Charter Member (6) - MCPS Windows 95/Networking

29 years

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Aquarius Stuff

by marvin＠rain.org

I found I sent this email to Sam instead of mailing to the listserver so I am just reposting in case anyone is interested. > Now you did it, I had to go back and look at all the stuff again, darn > > :). Everything below has the Aquarius name and logo on it. The > 4-color > printer turned out to be Radofin Electronics. This is actually what > came in the lot: Prices are from the Crimac, Inc. Aquarius Order form > > before the discount. The only date is on the order form and states > that > 10% can be deducted if mailed by January 31, 1985. The prices are > from > that flyer as obtained from a copy of the original order. The next > flyer from Crimac showed a price increase of about 20%. Pricing is > qualified when the model number on the box did not match the order. > > Mattel Electronics Aquarius > Ser # RH0115319 > Model # 5931 > Missing original box and packaging, but has docs > No Price listed > > Mattel Electronics Data Recorder Ser # RH000151 > Added label - Mattel Electronics, Mfg by Radofin > Model # 4394 > Price - $31.95 for Model # 4394R > > Mattel Electronics Mini Expander Ser # RH0109348 > Model # 4063 > Price - $43.95 for Model # 4063R > > Radofin Electronics 4-Color Printer Ser # RH0500203 > No indication of mfg on printer, only Radofin on box > Missing printer cable > Model # 4615R > Price - $109.00 > > Mattel Electronics Space Speller Cartridge > Only Mattel label on box is "(c) Mattel Electronics, Inc. 1983" > Model # GMN0014 > Price - $19.95 for Model 4682R > > Mattel Electonics FileForm Cartridge > Model # 4177 > Price - $29.95 for Model 4177R > > Radofin Electronics 32K Memory Module > Model # 4217R > Price - $74.95

29 years

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IBM PCjr Power Supplies

by ard＠siva.bris.ac.uk

>A while ago I promised two people that I would fetch them some IBM PCjr >power supplies if I ever found them. Well, I found some today. I've got Incidentally, I built a PSU for my PC-jr last week. I used a simple 15V AC transformer, no centre tap or anything like that. The only one I could find was 50VA, which is marginal, but not too bad. The ends of the secondary go to the outside 2 pins of the PC-jr power connector. The central pin goes to mains earth and to nothing on the secondary side at all. Oh, I put a 3.15A fuse in series with the secondary to protect the transformer. It works fine. My PC-jr boots, and all PSU outputs (including the -ve one) are present and correct. > >Sam -tony

29 years

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Freebie Okidata Okimate 10 Printer

by gmast＠polymail.cpunix.calpoly.edu

You pay UPS for 7 lbs from 93405. Printer only, no interface cable. Was used with C-64. Untested but looks good. Check the <a href=http://www.ups.com/using/services/rave/rate.html> UPS Rate Calculator </a> to figure shipping. And be sure to add about $1 because those quotes are commercial pick-up rates.

29 years

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Hayes MicroModem II Micro-coupler

by dastar＠crl.com

Was there some bloke on this discussion who was asking for the Hayes micro-coupler the other day? I have an extra one if you still need it. E-mail me. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

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Commodore Liquidation!

by gmast＠polymail.cpunix.calpoly.edu

I have the following Commodore stuff for sale. Discount for more than one item (you save on shipping too) VIC-1541 Drive (2 ea) $5 ea 1541 Drive (2 ea) $5 ea C-64 in orig box w/ps(1 ea) $5 Commodore joysticks (1 pr) $5 Untested C-64 Power Supplies (6 ea) $3 ea Remember to add shipping to what its worth to you. Use the UPS site: <a href=http://www.ups.com/using/services/rave/rate.html> UPS Rate Calculator </a> to figure shipping. And be sure to add $1 because those quotes are commercial pick-up rates. Drives and C-64s are about 11 lbs ea. My ZIP is 93405. I also have a pile of cables and stuff that I haven't look through yet. Will throw in whatever cables and manuals I can find that go with each item, no guarantees though. Also, Im pretty sure I ran all these but not positive. I don't have time to test all this stuff. Sold AS-IS. Make me an offer on all or some of it! It's going to go one way or another so if it doesn't sell, I'll give it away for shipping cost. If that doesn't work it shall return to the thrift store from whence it came!

29 years

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IBM PCjr Power Supplies

by dastar＠crl.com

A while ago I promised two people that I would fetch them some IBM PCjr power supplies if I ever found them. Well, I found some today. I've got two up for grabs. Please e-mail me if you were one of the two people who inquired about one. If you weren't, e-mail me anyway and I will send them to you if the other two guys don't respond. To the two guys whose names I forgot: sorry for forgetting your names! Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

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Can someone decipher this panic?

by allisonp＠world.std.com

A-B C-D < ---+----------+---------+ < 1 | M7606 =============| < 2 | M7608 =============| < 3 | M3106 === | < 4 | M7516YM== | < ---+----------+---------+ < 5 | M7546====|M7555====| < 6 | < 7 | < 8 | < 9 | < 10 | < 11 | < 12 | < ---+----------+---------+ < 13 | | HDCNCTRS < Slot 13 bottom is not the HD controller, it's the distribution card. There should be a 50pin cable bettween the m9058 and the m7555(rqdx3) card. Pull the m3106 and bump the rest up one with the last one being the m7555. It shouldn't make a difference but at this point you don't need it to boot. This will give you a minimal config for the bus. Also make sure the overt the top cable for the memory is good! A-B C-D ---+----------+---------+ 1 | M7606 =============| 2 | M7608 =============| 3 | M7546 === | 4 | M7555 === | ---+----------+---------+ 5 |===Q->====|==Q->====| 6 |====<-Q===|===<-Q===| 7 |===Q->====|===Q->===| The arrows are added to indicate the qbus grant flow for the bus starting at row 5. Allison

29 years

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(fwd) Apple /// FS (fwd)

by dastar＠crl.com

Here's an Apple /// for sale. I've seen them go for much cheaper. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass ---------- Forwarded message ---------- From: sundeck(a)ix.netcom.com(N.J.C.) Newsgroups: comp.sys.apple2.marketplace Subject: Apple /// FS Date: 24 Jul 1997 12:31:32 GMT one Apple /// with Apple /// monitor and 2 nd drive , some software $150 plus shipping sundeck(a)ix.netcom.com or eflea(a)atlantic.net -- Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

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The Rescuer's Conundrum

by ard＠siva.bris.ac.uk

>Or otherwise stated: What to do when the cost of reviving a rescued >computer is as much as buying one of the same model? > >To explain, I recently rescued a Mac+ (2.5/40) which was being thrown >out by my employer. When I got it, it would give intermittant Sad Mac >errors. No problem, I figure I can replace the RAM with some surplus >PC SIMMs. This fixes the Sad Macs, but after it heats up it dies with >an "Address Error" bomb. Some board switching points to the motherboard >(more specifically, the ROMs) as being the fault. Hmmm... My first thought is to fix the old board : Since the ROMs work OK when cold, you should be able to make a good copy of them onto disk. Then blow them into EPROMs, and modify the Mac+ to use said EPROMs (I believe a very small mod is needed, alas, but I don't know that much about the Mac+ hardware). IMHO that's not piracy - it's simply using a backup copy on new media since the original media failed. However, a pair of EPROMs would probably cost about $15, so that's no solution either. In the past I _have_ spent more on repairing/restoring a machine than buying a new one would cost. The reason is simple - I enjoy doing said repairs. A hobby doesn't have to make financial sense. [...] >Thanks in advance... <<<John>>> > >P.S. Anybody also know of a source for a LaserWriter Plus logic board, too? What's wrong with the old one. From the pictures I've seen of said board (Sorry, I don't have one, only a CX-VDO (same engine, but with no logic board) and a Laserwriter 2NT), it looks to be mostly standard components, and should be repairable. -tony

29 years

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TRW Swap Meet

by coslor＠pscosf.peru.edu

Hey Marvin: I was wondering if any of your recent Atari acquisitions are for sale. I am especially interested on a good deal on a drive and some software... PLEASE let me know.. CORD //*=====================================================================++ || Cord G. Coslor P.O. Box 308 - 1300 3rd St. Apt "M1" -- Peru, NE || || (402) 872- 3272 coslor(a)bobcat.peru.edu 68421-0308 || || Classic computer software and hardware collector || || Autograph collector || ++=====================================================================*// On Wed, 31 Dec 1969, Marvin wrote: > I went to the TRW Swap Meet today down in Los Angeles and managed to get > a few things. A guy was selling a fairly complete Aquarius that > included the cassette recorder, printer/plotter, expansion chassis, a > 32K expansion unit, some games, and documentation. He was asking $25 > but took $20 for the lot. Also picked up an Epson PX-8 portable and an > NEC 8201 portable (sure hope those numbers are correct as I am going > from memory) for $25 lot. The "best" deal was a guy walking around with > a sign that said "Free Atari". Of course, that got my attention and I > picked the 5 boxes of stuff up. Haven't checked it all out yet, but > there were supposed to be three Atari 400 computers, Three disk drive > units, an 850 interface, a modem, docs, and some other stuff. Saw a guy > offering S-100 cards (mostly memory and HD cards) at $5 each. When I > asked why he was asking so much, he replied they weren't for sale. I > hadn't heard of the manufacturer of those particular cards, and figured > if schematics were available, they might be worth what he was asking. > > I met a friend of mine whom I hadn't seen for about a year. Turns out > he built one of the Altair computers I have and was one of the first > factory reps for Vector Graphic. Apparently among the many people he > called on was a place up around Berkeley with a name like Kentucky Fried > Computers (or something similar) and that was where Northstar Computers > got started. Apparently, he has some of the early SCCS stuff along with > most of the Vector Graphic docs, etc. so with any luck, I'll end up with > that stuff too. > >

29 years

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bundling mail

by lwalker＠mail.interlog.com

I recall seeing an option to bundle msgs in this list. How do I get this? Please bundle ?

29 years

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I need a Commodore Plus/4 Video Cable

by 107765.1161＠compuserve.com

Message text written by INTERNET:classiccmp@u.washington.edu >Does anyone have a Commodore Plus/4 video cable for sale or trade?< The 8-pin cable for the Plus/4 is exactly the same as the 8-pin cable for the (more common) Commodore 64 or 128. And, a 5-pin cable made for the 64 (the early models had a 5-pin port) will also work on a Plus/4. In fact, I think most home computer manufacturers (Atari, TI) used 5-pin cables with the composite, sound and ground on the same pins, so you could try one of those if you have one sitting around. Finally, if you want to hack one together, I can provide the pinout. Gil Parrish 107765.1161(a)compuserve.com

29 years

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Some Great Deals

by gmast＠polymail.cpunix.calpoly.edu

> >On the other hand, I had a garage sale last weekend. Not one person = > >interested in the piles of Apple, Commodore, Atari stuff. I mean, if you = > >guys aren't going to garage sales to buy stuff, you're missing a lot of = > >deals. Most of the stuff at the Goodwill has an old garage sale sticker = > >on it.< > > Heck, if you're dumping stuff at garage sale prices, post the list here > first! Probably nothing rare or particularly interesting, but you never > know what somebody might be looking for. > > Gil Parrish > 107765.1161(a)compuserve.com = I do post lists of the stuff I'm selling on Auctionweb. Some of that stuff does go really cheap but not all. I do plan to post a big list of the stuff I was selling at the garage sale and the prices should be very reasonable (cheap). You are right in that the G sale stuff isn't rare. I had 3 Apple II+, an Apple IIc, C-64, Piles of C-64 power supplies and cables, joysticks, Atari 2600 consoles and games. Only thing is that they need to be shipped which can be more than the price sometimes. I did manage to give away 4 dead C-64s and a 1541 to a guy who works on them. Give me a month or so.

29 years

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Info needed: VAXStation 3520 & others...

by IVIE＠cc.usu.edu

>> 2nd: a number of DECStation 2100 and 3100 series units. (along with >> various peripherals and expantion boxes. >> >> What are they, and what do they run? (and docs?) > > I have one, it runs VMS 5.3 (VAXServer 3100) Sorry; it it runs VMS it's a VAXstation, not a DECstation. The DECstations are built on MIPS processors. Roger Ivie ivie(a)cc.usu.edu

29 years

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Info needed: VAXStation 3520 & others...

by IVIE＠cc.usu.edu

> 1st: (the biggie) VAXStation 3520. 'Cube' configuration, apparently 4 > processors Four processors would make it a 3540... > , 64meg of ram, a TK70 and controller, one board that appears to > be the interface between the processor bus and the three Q-bus slots in > the chassis, How much stuff is on the QBus adapter board? There were two versions: FTAM supports only the TK70 controller (is you TK70 attached to QBus or to SCSI?) and FQAM supports any random QBus module. FTAM is a simple module containing only a few chips; FBIC (interface to the backplane) and CQBIC (CVAX -> QBus adapter) being the only really big ones. I believe there was also a clock generator chip, but not much else. FQAM is chuck full o' goodness. It his a prom-based microcode machine to run the module and lots and lots of PALs. > and a board on the processor bus marked "I/O Module" with two > 50 pin headers on it. The connector which goes out the side of the backplane is SCSI. Although DEC used the DSSI chip on this module, they only supported SCSI; the DSSI chip is capable of doing both. The connector which comes out the front of the backplane goes to a distribution panel which provides: - Four serial ports (console/printer, modem, mouse, keyboard) - Ethernet (AUI and BNC) - Diagnostic code display (one 7-segment LED) Unfortunately, I don't know the pinout of the cable; I don't have a printset for the 3520. > There also appears to be a space for what looks like it would have been a > three board video sub-system (which has been removed). Three boards is correct. For extra fun, it has its own embedded MicroVAX II... > Aside from the basic power/control cabling, and the cable to the TK-70, > there are no other cables in the unit at present. (and no place to plug in > a terminal!) The terminal plugs into the distribution panel which plugs into the I/O module.

29 years

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(fwd) Model 4 video problems

by bluesky6＠ix.netcom.com

Can any expert out there help me with this? Thanks! In comp.sys.tandy, bluesky6(a)ix.netcom.com (Benedict Chong) wrote: %I just got a Model 4. When I turn it on, the disk drive will spin but %there's no video. % %When the video brightness is increased, I can see a large rectangular %green area where the video would be. % %Instead of video characters, there are lots of zigzag lines across the %screen, with more on the top of the screen than towards the bottom. %The entire screen is stable and does not flicker or move around. % %It has been a good number of years since I last played with this kind %of video (built a 6502/6845 terminal in the mid 80s) so I can't %remember what problem would cause this type of symptoms. % %When I remove the video connector (after opening up the machine), the %screen loses the vertical hold. I guess that would mean that the %vertical sync and circuitry is working. % %Could the problem be due to the monitor circuitry or a problem with %the Horizontal Sync generation? % %Would appreciate all/any pointers. % %Ben %

29 years

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HHCs

by bwit＠pobox.com

I must've fell off the list last week when the Internet went haywire and I've just resubscribed. From the tone of this message it would seem that the HHC deal fell thru. Would someone mind bringing me up to date? Thanks, Bob ---------- From: Sam Ismail[SMTP:dastar@crl.com] Sent: Thursday, July 24, 1997 6:15 PM To: Discussion re-collecting of classic computers Subject: re: HHCs On Thu, 24 Jul 1997, Gil Parrish wrote: > Message text written by Sam: > >I should have mentioned that in a couple months when the remaining units > are liberated, they will be up for grabs.< > > A suggestion. Why don't you start with the existing list of people who > were willing to pay for the units, and allocate one to each. If there > aren't enough to go around, then delete names in some random manner. If > there are units left over, then take the list of folks who requested more > than one and allocate them to those folks in some sort of random manner, > and so on. This is what I planned to do. I have retained the list. There were a total of 53 interested persons, so hopefully there will be enough for everyone. If there are extras then maybe we'll just hold a lottery.

29 years

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VIC-20 Kernel Project

by 107765.1161＠compuserve.com

Message text written by "Richard A. Cini, Jr." > For the last two years, I have been working on making a recompilable version of the VIC-20 Kernel ROM.< OK, I'm not afraid to ask the amateur question: Why? I'd love to see someone with good programming skills write some sophisticated software for the VIC-20, likely requiring at least a 16K expander or something. If your project will help lead to that, I'm all for it. Gil Parrish 107765.1161(a)compuserve.com

29 years

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Some Great Deals

by 107765.1161＠compuserve.com

Message text written by Greg Mast >On the other hand, I had a garage sale last weekend. Not one person interested in the piles of Apple, Commodore, Atari stuff. I mean, if you guys aren't going to garage sales to buy stuff, you're missing a lot of deals. Most of the stuff at the Goodwill has an old garage sale sticker on it.< Heck, if you're dumping stuff at garage sale prices, post the list here first! Probably nothing rare or particularly interesting, but you never know what somebody might be looking for. Gil Parrish 107765.1161(a)compuserve.com

29 years

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CLASSICCMP digest 124

by allisonp＠world.std.com

Bruse Lane queried: <The VS2000 is the little square 'cube,' is it not? If so, I have a pair. <was planning on using one for a disk formatter. Yep the 1cuft vax., Has MFM disk interface for hds and 5.25" 1.2meg floppies and on the mainboard there is a 50 pin connector for SCSI. Plug a cable with 50pin berg into it and bring it out the bottom. The only SCSI device it will boot is TZK50 (TK50 with SCSI adaptor). However if you can get ultrix or VMS on a disk it both can use the SCSI to access otehr devices other tha boot. Also the printer port(9pin) if you pull pin 9to ground and boot it becomes the console for a terminal. FYI the disks that work with the vs2000 are st225/20meg HH, st251/40meg, RD52(quantum q540 31mb), RD53(micropolus 1325/71meg) and RD54(maxtor2190/150meg). Other drives with the same geometry can be used if you want to use it with media the rom knows. <??? How so? I've not worked enough with the stuff to guess at that one. Boot the OS, build a single user system on disk and use that to build a bootable tape. <A! That's IT!! Yes, I can do this! I can build Ultrix onto one of my <3100/M38's then, and use it for netbooting the VAXStation! Yes you can as most of the vaxen will mop boot if the NI is there. <Allison, if you were within range, you'd get a big hug! I even have an <honest-to-DEC RRD42 SCSI CD drive just waiting to be used. <If you could outline the steps for me, so I can have a printout to refer <to, I'd appreciate it. Thanks again! Wish I could. I know the outline only and that the capability is there. <BTW, can I also do the remote boot with OpenVMS? I picked up a Ver. 6.2 <distribution kit while I was in the Bay Area. Yes, and depending on the license you have with it(must have) you can also cluster them using NI. The cluster host can be any vaxen, the higest performing one you have is the logical choice. The alternate is booting as a diskless workstation or remote boot(localdisk for swapfiles). Vs2000s were commonly used as workstations with local swapdisks (rd52s or rd31s) or as decwindows terminals. FYI: vms without the license pak for it is marginally useful. Brief explanation of MOP boot. This is a DEC protocal that goes back to PDP-11s(they used serial lines for this!) and it was Maintenance Operations Protocal. It allowed one system to push code into another. It's protocal is fairly simple, the boot requestor puts a message on the NI that says BOOT ME and it's Eithernet hardware ID. The host is tasked with recognizing the address and feeding back the correct file usually a boot loader. The boot loader is more sophisticated and will then respond back saying ok lets use a better protocal and it then loads the one of three things, another bigger loader, VMSboot or untrixboot. After that point the protocal is usually either IP or DECnet though user selected protocals are possible. The actual application loaded is up the the designer/user and examples I've worked with were DIAGS, PrintServer (lps40/20/32), DECwindows, VMSworkstation remote boot and VMS cluster. Doing this on unix systems means you must have a operating host with networking running. The boot process from the requestor is the same but the host must have a daemon to handle the booting process. USually there are config files to manage this. Allison

29 years

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Is there a DECsystem-ten emulator for free/shareware?

by dseagrav＠bsdserver.tek-star.net

I heard there's 3 DEC-10 emulators, but all are commercial products (And therefore pretty expensive!). Are there any freeware or shareware ones?

29 years

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Some Great deals on AuctionWeb

by Philip.Belben＠powertech.co.uk

> On the other hand, I had a garage sale last weekend. Not one person > interested in the piles of Apple, Commodore, Atari stuff. I mean, if you > guys aren't going to garage sales to buy stuff, you're missing a lot of > deals. Most of the stuff at the Goodwill has an old garage sale sticker > on it. I don't see many garage sales around here. Sometimes I get to radio rallies (hamfests, I think is the US term). But there is a car boot sale most Sunday mornings in the summer where I call in on the way home from church. Sometimes there is good stuff; sometimes there is awful stuff; last Sunday I saw (in the way of computers) a late model Commodore 64 (which I already have) without a price tag, and next to it a card advertising a Commodore PET (model unspecified) + disk drive + lots of disks, working but needs new cable (also unspecified) hence "low" price of L30 [delete] [delete] 25. Since I have five PETs already, I didn't bite. But even if it's a fat 40 (which I don't have yet) I'd be reluctant to pay as much as L25 (over $40) even in full working order, and certainly not without the disk drive cable (replacement easily obtainable _only_ on the 8032SK AFAIK). Still, enough moaning. I agree, this sort of sale is always worth a visit - you never know what interesting little goodies you might find there... Philip.

29 years

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Commodore history

by ds_spenc＠alcor.concordia.ca

Does anyone know where Commodore was actually started? I've seen the Bronx and Toronto given as the site of the first Commodore shop, but the Bronx references have been made more recently. Apparently the official Commodore history at the World of Commodore show in Toronto (forget which year - 10th anniversary of the show I think, so 1993?) had a picture of the first little Commodore shop... in Toronto. Also, does anyone know where Commodore had production facilities in Canada? I have a VIC-20 with "Made in Canada" stamped on it, and I didn't realize that Commodore actually _made_ computers here. As another note of interest, both of my "Made in U.S.A." VIC-20s have serial numbers starting with "P". The "Made in Canada" VIC has "CC" instead. Did the letters record what plant the machine was manufactured or assembled in? CC = Canadian plant, P = Philadelphia or something? Heck, while I'm at it, does anyone know the exact date (or even the exact year) that Commodore purchased MOS Technology? I figured it would've been 1976, but I've seen documents referenced as from "Commodore/MOS Technology, Norristown, PA, 1975". Doug Spence ds_spenc(a)alcor.concordia.ca

29 years

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Laser 3000

by ds_spenc＠alcor.concordia.ca

Just on the off chance that there's a different mix of people here now than when I first enquired some months ago... Does anyone here have disk drives, CP/M module, or documentation (especially the tech manual) for the Laser 3000 computer from Video Technology? How about the RS232 adapter, or the RGB cable? Computer Direct also sold these as the "Aplus 3000" (they used a marker to cover over the "Laser 3000" nameplate for the picture in the ad). Doug Spence ds_spenc(a)alcor.concordia.ca

29 years

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HHCs

by dastar＠crl.com

One final word on the Panasonic hand-helds... I should have mentioned that in a couple months when the remaining units are liberated, they will be up for grabs. I don't want to get anyone's hopes up, but Mike mentioned that he would see if we could just get them for free if we pick up the shipping from Canada, since the company didn't seem interested in making a buck on them anyway. When the time arrives I'll bring it up. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

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I need a Commodore Plus/4 Video Cable

by dastar＠crl.com

Does anyone have a Commodore Plus/4 video cable for sale or trade? Please e-mail me directly if you do. Thanks. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass

29 years

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HHCs

by 107765.1161＠compuserve.com

Message text written by Sam: >I should have mentioned that in a couple months when the remaining units are liberated, they will be up for grabs.< A suggestion. Why don't you start with the existing list of people who were willing to pay for the units, and allocate one to each. If there aren't enough to go around, then delete names in some random manner. If there are units left over, then take the list of folks who requested more than one and allocate them to those folks in some sort of random manner, and so on. Anybody will take a "freebie", but the folks who committed to make this deal work ought to have the first shot at them. I'm just sorry the deal didn't work out as anticipated. And by the way-- if these aren't new-in-the-box units, I assume they won't be coming with an instruction manual? Gil Parrish 107765.1161(a)compuserve.com

29 years

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The Rescuer's Conundrum

by jruschme＠hiway1.exit109.com

Or otherwise stated: What to do when the cost of reviving a rescued computer is as much as buying one of the same model? To explain, I recently rescued a Mac+ (2.5/40) which was being thrown out by my employer. When I got it, it would give intermittant Sad Mac errors. No problem, I figure I can replace the RAM with some surplus PC SIMMs. This fixes the Sad Macs, but after it heats up it dies with an "Address Error" bomb. Some board switching points to the motherboard (more specifically, the ROMs) as being the fault. Checking around, I see that the most common price for a Mac+ system board is $15 + shipping. As a last check, I call Intragate (intramac(a)aol.com), who has had good prices in the past, to find out their price. It turns our that they won't even quote me a price for the MB as they can get me an entire Mac+ system for $20. This has really left me in a quandry as to what to do. I really don't want to buy *another* one as I already have a working Mac Plus. Besides, what would I then do with *this one*? I suppose I could keep it for parts, but that seems a bit of a waste too. Any suggestions? Anyone with a spare set of Mac+ ROMs? Thanks in advance... <<<John>>> P.S. Anybody also know of a source for a LaserWriter Plus logic board, too?

29 years

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Getting desperate...!

by allisonp＠world.std.com

<Would a VS3100/30 work for you? I don't know how you would then <install on the other machines, though (maybe you know more about <Ultrix than I do. You're guaranteed to know at least as much as I <do :-) ). < If you have a system running the CD then you can build a system to disk and netboot and netcopy the system to other machines. Vaxes will mopboot other vaxes. Allison

29 years

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VIC-20 Kernel Project

by rcini＠msn.com

For those interested in the Commodore VIC-20... For the last two years, I have been working on making a recompilable version of the VIC-20 Kernel ROM. I started from a scan that I made of a crappy dot-matrix print-out and have a version that compiles with no errors. From this, I developed an assembler variable equates "include" file for all of the VIC-20 RAM and ROM locations. It's a little messy because I preserved the original address and op-code info to match against the assembler listing. So, you have to import it into Excel to strip that info out, save it as text, do some minor double-"double-quote" fixups and re-save it. I have also proven to myself that the compiland is the same as the ROM image by using a simple BASIC program to byte-compare the two files (my ROM image and a ROM image from the Finland Commodore ftp site). There are two versions of the "inc" file. One for recompiling the Kernel and one for ML program writers (to avoid double variable declarations). Right now, I'm working on documenting the code as best as I can. When that's done (I'm up to location $f400), I'll post it and the "inc" files. I would then look for you guys/gals to peer-review it and give me your comments. The finished product can go into our archive. Then, I'll probably work on the BASIC ROM. And so it goes... ------------------------ Rich Cini/WUGNET - ClubWin Charter Member (6) - MCPS Windows 95/Networking

29 years

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Getting desperate...!

by allisonp＠world.std.com

<From: "Lane, Bruce A" <B.Lane(a)PSS.Boeing.com> < Gad, I'm beginning to get a REALLY good idea of what searching for <tough-to-find's can be like! < < Here's the story. I have several MicroVAX II's. I need a way -- ANY <way! -- to boot from a CD-ROM on one or all of them. < OR (4): A later model of VAXen (maybe a 3500, 4000, or 5000 series) <that is designed to accomodate SCSI from the get-go, and can boot from a <CD-ROM. Or a 3100, or vs2000 they have SCSI. <As a last-gasp possibility, I do have a functional TK30 tape drive. Any <chance that, if I copy the Ultrix distribution CD to a CompacTape II <cartridge, it would be bootable by the MicroVAX? Not likely if it's a copy. Though you likely can build a tape from the copy. <Fellow DEC'ers, I'm getting desperate. Please help me out if you can! <I've got at least three systems sitting idle and gathering dust because <I can't boot a CD on them at the moment. Join the crowd. Of all my time in computers starting back with the PDP-8s I've had the problem of I have W and the machine can read Y. Right now my vaxen know only rx50, rx33, or tk50. My PC knows none of those and the PDP-11 has those and RL02. allison

29 years

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Getting desperate...!

by B.Lane＠PSS.Boeing.com

Gad, I'm beginning to get a REALLY good idea of what searching for tough-to-find's can be like! Here's the story. I have several MicroVAX II's. I need a way -- ANY way! -- to boot from a CD-ROM on one or all of them. I NEED at least one of the following solutions. 1). (probably a pipe dream) An Andromeda Systems SCDC Q-bus/SCSI host adapter. I don't even care if it doesn't work; I can get it refurbished by the manufacturer. However, $2,500 new is way out of my range. OR (2): ANY QBus-to-SCSI board that can boot from a CD-ROM drive (I have a DEC RRD42). OR (3): A DEC RRD40 CD-ROM drive and controller (the early RRD's used a dedicated controller that, AFAIK, was compatible with any QBUS machine). OR (4): A later model of VAXen (maybe a 3500, 4000, or 5000 series) that is designed to accomodate SCSI from the get-go, and can boot from a CD-ROM. As a last-gasp possibility, I do have a functional TK30 tape drive. Any chance that, if I copy the Ultrix distribution CD to a CompacTape II cartridge, it would be bootable by the MicroVAX? Fellow DEC'ers, I'm getting desperate. Please help me out if you can! I've got at least three systems sitting idle and gathering dust because I can't boot a CD on them at the moment. Thanks in advance. Please reply to my other address: kyrrin(a)wizards.net ==Bruce Lane http://www.wizards.net/technoid

29 years

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Info needed: VAXStation 3520 & others...

by jimw＠agora.rdrop.com

29 years

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Some Great deals on AuctionWeb

by gmast＠polymail.cpunix.calpoly.edu

Here's my update for the stuff I'm selling on AuctionWeb. There are a couple fairly rare items here. I just want to clear stuff out and get what I can for them so they will sell for the high bid. I recently sold a few things there really cheap, like in the $1 - $5 range for new Apple parts so I think overall the prices are down during the Summer. Anyway, here's the list. Just go to the link shown to bid and get more info. And drop me an email if you have a question beyond what's in the listing. Note the Apple Lisa Mouse and Apple III drive! **Note: I mistakenly listed this as an Apple II mouse when, from a couple emails, I was informed that it's actually an Apple Lisa Mouse. There is a picture at the listing. Old Apple Lisa Mouse! *** PHOTO *** Current bid: $15.50 Auction ends on: 07/25/97, 16:45:54 PDT http://www2.ebay.com/aw/itemfast.cgi?item=zjz242 Apple III External Floppy Drive **PHOTO** Current bid: $7.50 Auction ends on: 07/25/97, 10:43:32 PDT http://www2.ebay.com/aw/itemfast.cgi?item=nwr8950 Atari 520ST System With Floppy & More! Current bid: $8.50 Auction ends on: 07/25/97, 10:49:56 PDT http://www2.ebay.com/aw/itemfast.cgi?item=hrc0869 Apple IIe 80 Col/64K Expansion Card Bidding starts at: $1.00 Auction ends on: 07/26/97, 16:35:51 PDT http://www2.ebay.com/aw/itemfast.cgi?item=eix4345 Timex Sinclair 1000 w/16K Module/Software Current bid: $6.50 Auction ends on: 07/26/97, 16:46:22 PDT http://www2.ebay.com/aw/itemfast.cgi?item=ytc65252 Brand New Apple IIe Power Supply! Bidding starts at: $1.00 Auction ends on: 07/26/97, 16:59:52 PDT http://www2.ebay.com/aw/itemfast.cgi?item=ipi2331 Macintosh SE Power Supply! Current bid: $1.00 Auction ends on: 07/26/97, 17:35:06 PDT http://www2.ebay.com/aw/itemfast.cgi?item=lxm4715 Brand New Apple IIe Replacement Keyboard! Current bid: $5.51 Auction ends on: 07/27/97, 19:00:44 PDT http://www2.ebay.com/aw/itemfast.cgi?item=qsa5622 Atari Trackball Controller **photo** Bidding starts at: $2.00 Auction ends on: 07/27/97, 20:34:18 PDT http://www2.ebay.com/aw/itemfast.cgi?item=gsi241 Also, I have lots more computer stuff in the garage that has to go. Here's a brief list. I'll be listing everything on the auction in the next month or so. Apple IIe (3 ea) Apple IIc with monitor and power supply Apple IIe Color Monitor Apple Imagewriter II printer (3 ea) Macintosh 512k Pile of new Apple service parts for Mac plus, Mac II, Apple IIe, IIc, Imagewriter, more including power supplies, main boards, disk drives and more. Apple joysticks and paddle controllers Commodore 1702 color monitor Commodore 1541 drive (4 ea) Commodore 64 in box Piles of Commodore power supplies and cables, joysticks, etc Thanks for reading!

29 years

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CLASSICCMP digest 122

by foxnhare＠goldrush.com

From: Philip.Belben(a)powertech.co.uk Subject: PET FAQ > What about the 8200 Series? I am not sure of the differences between this, the > 8000 series and the 500/700 (B/P) series - see my post earlier this week. I don't have ANY information on the 8200 series, I suspect that it was not widely released (or not at all) in the U.S. The 500/700 series are not in the PET line, those are the B-series machines and would be a separate FAQ - IMO. >> Large Keyboard PETs (no more internal datasette drive): >> PET 2001 xN (x=8,16,or 32 depending on amount or RAM it was shipped with) >> - Full-size key keyboard w/PET graphic symbols imprinted on keys > I dispute this. The 2001 xN, of which we had several at school, had the new > ROMs, the new motherboard (using 2332 ROM chips) but the small keyboard and the > built in C2N. This was the essential difference between the N and B machines. Have to disagree with you on this one, the 'calaulator keyboard' PETs seem to have the designation on 2001-8k or 2001-8/c (c referring to calculator keyboard). The N designation meant [N]on Business and [B]usiness style keyboards, both full-size, can find many sales ads and books to refer to on that one (though if I were running a business on a PET, I would have preferred the keyboard with the most keys...) >> - Upgrade ROMs >> - Many steel cased, some w/molded plastic tops. >> - many with clearer green on black displays >I thought all the N and B machines had green screens - we even had one straight >2001 (old ROM) with a green screen. I think Commodore still had extras in stock (also small yeyboards & tops), the blue screens aren't common but tere are some in later models (kinda like finding VIC-20 keyboards in C-64 units) >> - Later versions had 4.0 ROMs installed > Was this not only available as an upgrade? I am going by personal experience here, there were 8" diaply PETs sold with 4.0, I saw a couple come through our school. >> PET 2001 xB (labeled as CBM, Commodore Business Machine) >> - Full size xx key keyboard (no graphics symbols printed on keys) >> - Upgrade ROMs (powers up in upper/lower case mode) >> - Later versions had 4.0 ROMs installed >> - Many w/molded plastic tops some steel cased. > Our green-screened old-ROM machine was labelled CBM, but was again a small > keyboard/internal tape machine. Otherwise I remember little about the B > machines Hmmm, I have yet to see such an animal... But as I mentioned a few answers back, with Commodore's thriftyness anything was possible. :) >> PET/CBM 40xx Series (PET= N keyboard/ROM, CBM= B keyboard/ROM, xx= RAM) > I wasn't aware of a small keyboard 4000 series. Interesting. Again, N does not mean small keyboard. >> 80 column series (can be set to 40 column mode via software.) >Can it?!? I wasn't aware of this. You can restrict the area in which it prints >on the screen to an arbitrary rectangle, but it doesn't behave like the >40-column machines in that the screen is still physically 80-column, it doesn't >handle wrapped text, etc. On many of the Commodore P.D. disks there is a program called 4032.C (I think there is a .C on it...) it will bump your 8000 into a 40 columns to run the 40 column programs on the disk. > The 8200 series could be set from 80 to 40 columns by unsoldering and moving two > chips. I haven't done this to mine yet... Never heard of 'moving' chips, I read it was one of the ROMs (the one that supplies the startup values...) that determined 40 or 80 column (as well as video RAM memory too.) I guess you mean replacing two chips, then yes. Going back to 40 is a bit easier since you don't have to add RAM like in the 4000 PETs. > At this point you must mention the 8296 and 8296D! I'll have to dig up some solid info on this, as 'I said it is pretty uncommon here. >[... SUPERPET ...] Got one, still puzzles me, also how much space I should devote to it as I have only seen one (the one I bought recently). Will probably add more as I get more time and information not very many people have asked about them. >> MOTHERBOARD SERIES >> >> 2000 series(9" CRT) 3000 & 4000 series (8" CRT) >> IEEE user tape #2 IEEE user tape #1 >> +------####-####--##-+ +------####-####--##-+ >> ! # ! #! >> ! # ! #! >> ! # exp ! #! exp >> ! # bus ! ROMS #! bus >> ! # ! F E D C A B 9 #! >> ! # ! #! >> ! ! ! ! >> ! ! ! ! >> ! ROMS ! ! ! >> ! F E D C A B 9 ! ! ! >> ! ! ! ! >>tape # RAM MEMORY ! tape # RAM MEMORY ! >> #1 # ! #2 # ! >> +--------------------+ +--------------------+ >The left hand board is a hybrid of the original motherboard (of which there were >no fewer than _four_ versions). Remember the original motherboard used 2 >kilobyte (800 Hex) ROM chips (6540s in most, 2316s in some). The ROMS were >therefore not F E D C A B 9 but F8 F0 E D8 D0 C8 C0 'Programming the PET/CBM' gave me those diagrams and you are right about the ROM sizes... Will have to re-do that one. >The righthand motherboard was the 2000B and some of the 3000 - the tape ports >were swapped on the 2000N and other 3000 AFAIK. Will keep with Programming PET/CBMs numbering for now, I'm trying to answer questions not confuse people more... They should suffice all my machines except the original (of course) have the tape #2 on the inside. > 8200 series: Again this basic format, but rearranged so the separate keyboard > mod is sensible. 128k RAM on motherboard of which 96k usable (?). Again I have no data on the 8200 PET/CBMs, point me toward your FAQ on it... *grin* >> WHAT ARE THE DIFFERENCES AND/OR BUGS OF MY VERSION OF BASIC? >> Original ROMs >> Commodore had not yet implemented the IEEE-488 disk routines. Arrays are >> limited to 256 elements due to a bug in firmware. There is no machine >> language monitor nor could the PEEK command access locations above memory >> location 49152. The upper/lower case character set was inverted (SHIFT for >> lower case) (note: reading my sources there are ALOT of bugs, will take a >> while to compile them) >Some of these were not bugs but features. [so Microsoft would have Commodore believe...] >Peeking and poking in upper memory (thresholds vary!) were disabled to stop people >looking at the ROMS. [Common among early micros fortunately Commodore learend the > 'closed box means no 3rd party support' lesson early] >In the E page are some I/O addresses, so it is re-enabled from there upwards... >The only other genuine bugs I came across on my own machine (my first ever >computer was a PET - original ROMs, 13th birthday present in 1980) were one in >screen editing, and the machine crashes instead of giving the "too many files" >error. Just skimmed a bit about bugs with the Cassette routines. There was some usage problems on the PEEKs warning not to cluster them too close together... Facinating stuff... >> Added screen 'window' formatting control characters. >Only in 8000 series and fat 40, AFAIK. The small screen 4000 series did not >have the new screen controller or many of the new graphics features. I think you're right on that... still have to research that one more. >> HOW DO I ACCESS THE PET's M/L MONITOR? >> The 'timy machine language monitor' (known as TIM to some)... >TIM stood for Terminal Interface Monitor, according to my manual. Jim butterfield referred to it as Tiny Monitor in the First Book of VIC, thanks for the clarification. >> WHAT IS THE 'KILLER POKE' AND SHOULD I WORRY ABOUT IT?..... >[ Explanation with one or too inaccuracies has been snipped ] >The old "video controller" could not be put into a faster or a slower mode. It >was discrete TTL, and simply read the screen memory, shoved it through the >character ROM, and sent it to the monitor. It would not have affected printing >speed even if you had speeded it up. >The old PETs were slow because the SOFTWARE of the print character routine >waited for the interval between screen scans before updating the screen memory. >This reduced conflicts over the screen RAM which would have resulted in random >pixels (snow) being illuminated on the screen. There was an input on one of the >I/O chips which was hooked up to the video circuitry and told the routine when >to access the video RAM. >The famous poke was actually to another register of the I/O chip, and configured >this input as an output. The older pets didn't mind (much!), and the print >character routine saw the screen as always available, but on the later ones with >the new video controller, this conflicted with another output and caused the >video controller chip to do a wobbly (and could even have burnt out one or the >other). Will re-work that one, thanks for the description. >> IF PEEK(50000) THEN POKE 59458,PEEK(59458)OR 32 >NO!!!!!! Peek(50000) will only be zero on the original old ROM pets! Hmmm I know that program works on the big screen units... more research! >> CAN I HOOK UP AN EXTERNAL MONITOR TO MY PET? >> With the help of the following circuit you can get a composite singnal from >> the user port... >> Insert Video Diagram here.... >Don't use the one published in "The PET Revealed" by Nick Hampshire. It doesn't >work. DANG! It was such a neat plan too! Guess I'll have to forget that question for now (until I can find an alternative diagram.) Larry Anderson -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare/ Call our BBS (Silicon Realms BBS 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

29 years

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Minicomputer Storage Myths

by sinasohn＠crl.com

At 12:02 AM 7/23/97 -0400, you wrote: > Offhand, and I may offend a few sensibilities here, that folks who >care for computing's history should be willing to bear such short- >term inconveniences as medium-sized monetary expenditures. If you Well, I would gladly spend hundreds, or even thousands of dollars to save computers (and misc. other stuff I collect) from around the world. Problem is, I'm lucky if I've got enough $ to save me from going hungry. I'm not complaining, mind you (it's my own fault, really; spending all this money on silly computers and land rovers and stuff...) but just pointing out that a lot (most?) people simply *CAN'T* blow $200 on shipping a computer or what-have-you. Doesn't do much good to get an HP3000 series 3 if you then have to rip the guts out to live in it. I get the same story from people who say "Oh, you really ought to join the Y/club/whatever, it's not expensive" when what they really mean is "it's not expensive for me, but hey, I just bought a $50K BMW for my kid's 15th birthday." (I think there are those who get BMW's for their birthday, and those who get underwear. I got underwear.) --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

29 years

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Minicomputer Storage Myths

by sinasohn＠crl.com

At 07:00 PM 7/22/97 +0100, you wrote: >Ok, they are a very convenient shape compared with Superbrains, Tandy >Model 4s and PETs. I only have a couple of PETs and they are a real >pain. What do other collectors do with these machines? Shelves. If you face them towards each other: _ _ |_\_ _/_| You can slip light boxes or what-have-you in between. Of course, us really *smart* people concentrate on portables... 8^) --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad sinasohn(a)crl.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.crl.com/~sinasohn/

29 years

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