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

by jhellige＠earthlink.net

>I owned a couple of Corvairs back in the sixties, but I don't recall >either being equipped with Weber carburetors. Bein a GM product, >Rochesters seem infinitely more likely. I stand corrected...I gave up cars to get into computers, so it's been a while. I think I still have the factory shop manual for the AMC Rebel at home though, as well as enough Motor and Chiltons manuals to cover most anything between 1954 and 1973. Jeff

25 years, 4 months

1
0
0 0

New 'puter joins the collection

by pete＠dunnington.u-net.com

On Mar 12, 10:08, Mike wrote: > From: Jim Battle <frustum(a)pacbell.net> > > Do you know if you have the original, or the Sorcerer II? > What's the difference between the two models? Externally, practically nothing. Internally, the Sorcerer II has somewhat different memory decoding, to accomodate 3 rows of 4116's instead of 2, and they're all socketed. There's a DIP switch to select type and number of banks, which was done by solder links on the original. The video timing is also different, and it's easier to get a stable picture at 50Hz on the Mk.II; one of the poles on the 4-way DIP switch controls US/UK setting. Some of the signals on the 50-way expansion interface are slightly different. There's an MEMORY OFF input so an external device can switch off the internal RAM. The RSET signal is derived slightly differently, too. The Mk.II has fixed the hardware bug in the RS232 (on the Mk.1, the gate signal to switch from cassette to RS232 was wrongly applied so the RS232 was forced to the wrong logic level when the cassette was selected). Some of the layout is a little different to accomadate the changes, the IC number has changed of course, and a few parts of the circuit are done with (parts of) different ICs. They're still the same clock speed (2.106 MHz), and (apart from the differences above) the same machine. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

1
0
0 0

Fwd: Dilog D0686 ESDI controller board

by jhellige＠earthlink.net

Here's a message I figured someone on the list might be able to help with. I have a Dilog board in my MicroVAX II but don't know enough about it to answer his question. Jeff >Sender: root(a)dd.vaz.tlt.ru >Date: Mon, 12 Mar 2001 10:27:49 +0400 >From: TOSA <cav(a)b3339.dd.vaz.tlt.ru> >Reply-To: cav(a)b3339.dd.vaz.tlt.ru >X-Accept-Language: en >To: jhellige(a)earthlink.net >Subject: Dilog D0686 ESDI controller board > >WE HAVE Dilog D0686 ESDI controller board > > HOW LOAD FIRMWARE RESIDENT FORMATTER/DIAGNOSTICS UTILITY ? > > >Thanks -- Collector of Classic Microcomputers and Video Game Systems: Home of the TRS-80 Model 2000 FAQ File http://www.geocities.com/siliconvalley/lakes/6757

25 years, 4 months

3
2
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PC/MS-DOS 1.0?

by jhellige＠earthlink.net

Here's what I have as far as OEM and IBM DOS versions, part numbers and release dates when known: MS-DOS 1.17H for Sanyo MBC-555 MS-DOS 1.25 Release J for Corona (700055) MS-DOS 2.11 Release 1 for Corona (3/28/85) MS-DOS 2.11 Release 4 for Corona (700500) PC-DOS 1.10 (IBM, 5/7/82) PC-DOS 2.00 (IBM, 3/8/83) PC-DOS 2.10 (IBM, 10/20/83) PC-DOS 3.10 (IBM, 3/7/85) >On Mon, 12 Mar 2001, Gene Buckle wrote: >> The earliest I've seen is 1.25 for the Sumicom System 330, but the machine >> wasn't 100% IBM compatible. It was a pretty neat machine though - I wish >> I could remember what I did with it. :) > >MS-DOS 1.25 appears to be the same as PC-DOS 1.10 > >Did ANY of the OEMS release MS-DOS 1.10? > >Which clones had single sided drives (and presumably preceded 1.10/1.25)? > >-- >Fred Cisin cisin(a)xenosoft.com >XenoSoft http://www.xenosoft.com >PO Box 1236 (510) 558-9366 >Berkeley, CA 94701-1236 >

25 years, 4 months

1
0
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Carter AFB.. he he!

by jhellige＠earthlink.net

If I recall the models correctly, all but the Monza had just two of the Webbers, including the turbo-charged version. I believe the Monza was the model with the 4 carbs and there were problems keeping them synced but it was still a very nice engine. Sturdy, compact and lightweight. The gearbox was a bit of an oddity though. If I had the space for one, I wouldn't mind having another, as I had a '60 model. Jeff >Well, in the pre-Nader days, or shortly after his rise to prominence, I had a >Corvair, and if my experience is any indication at all, they're not a major >source of trouble. > >Dick > >----- Original Message ----- >From: "Jeff Hellige" <jhellige(a)earthlink.net> >To: <classiccmp(a)classiccmp.org> >Sent: Monday, March 12, 2001 3:32 AM >Subject: Re: Carter AFB.. he he! > > >> > OT: From my street-racing days: the Javelin was not a bad little ride, >> >properly set up, and I drove a few of them competitively. Holleys were >> >always my first carb choice, Carters being 'okay' jugs, and then there >> >Rochesters... yuck, poo! >> >> Then you had the Corvair's with thier 2-4 single barrel >> Webbers...nice but tempermental to keep working right. >> >> Jeff >> --

25 years, 4 months

3
2
0 0

SCSI connectivity

by ajp166＠bellatlantic.net

From: Chad Fernandez <fernande(a)internet1.net> >That's true, but you aren't using the full capacity of the slot. I Maybe, likely it's not a fast machine anyway. >suppose if you already have an ISA card, and don't really want to spend >anymore it's fine. I have a setup like that. I have a VLB slot with a The other side is even if you want to spend there are few NOS boards out there and fewer have much performance. >ISA 1542B installed. I haven't actually gotten the computer up yet.... >still have some IRQ/DMA conflicts, I think. Likely. Then again I set those things up in my sleep. >SCSI is backwards compatible as long as you keep Single Ended and >Differential separate. Thanks for the info... I only work with them for a lving. ;) >I would think any high end 486 class machine >would benefit from wide scsi. Remember SCSI doesn't rely on the CPU >like IDE does. No. No. I retired an old P133 server that had a Wide SCSI card in it.. With the 33mhz FSB there was little hope of using all the performance of the SCSI-W nor the really fast disk 7200rpm disk hooked to it. With VLB or EISA your likely talking a 486DX4/133 maximum and they are even slower. I know I have a 5x86/133 with VESA and the best I see on that one is maybe 30mb/sec and that the burst rate not an average. >I actually have a pair of 8-bit SCSI cards, a Seagate, and an NCR. I >have used the Seagate, unfortunately it didn't see more than 2xx of the >300megs of my HD, after I repartitioned the HD on that controller. I That and the best data rate will be 8-10mb/sec. ISA isn't fast. Win95 if you have the OEM disk has drivers for some pretty old and oddball stuff. Maybe the point I'm making is just getting them going is often all that can be asked. Trying to go for maximum smpoke is often not worth it as recent hardware is cheap and far faster. Allison

25 years, 4 months

4
5
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Looking for--data on ProLog SBCs

by steven_j_robertson＠hotmail.com

Rich, I have a s***load of STD BUS boards and DOCS including 4 or 5 complete systems with 8" disks. Alas, no hard drive based systems. If there's any specific info, you're looking for, I'd be glad to look it up for you? Unfortunately, I don't have a scanner or digital camera so bear with me :-( The 7805 is a SBC that may or may not need any additional support cards. They were mostly used in industrial or dedicated controllers and in fact many are still in use today. Most of those boards (although not all) have the processor, serial I/O, RAM, ROM, and timing circuitry all on one board. Being controllers, there were a wide range of IO options available. Everything from ADC/DAC converters, 16, 32, 48, 64 bit parallel interfaces, OPTO 22 and relay drivers, temperature sensors, DISK controllers, etc... Certainly the two additional cards that you have fit that category. With all the IO options, they make great platforms for home automation projects. Most of the external cards have jumpers that can be used to configure the address range (ports) for the cards. Most cards would work with any ports as long as there wasn't an addressing conflict. With a range of 255 ports, the system was very flexible. I don't recall for sure but, I think STD standard only requires GND, +5, +12, and -12 volts. If that's the case, you should be able to wire a regular PC power supply to the backplane. A full rack which could be 20 or more cards will certainly suck some power but the few cards that you have would be well within the capacity of a small PS. If you trace the lines from the 1488 and 1489 chips to the header connector, you should be able with a little experimentation figure out how to connect a dumb terminal. If not, I'll look it up for you. As far as software, most of the controllers either had the application burned in ROM or they would boot from an external disk (often CPM). The BIOSs may be specific to a particular variant of the OS so, not all of them will work together. IE: A microsys BIOS will probably not work with a DEC version CPM. A prolog BIOS may not work with a microsys boot disk, etc... Let me know what specific info you need. See ya, Steve >From: "Cini, Richard" <RCini(a)congressfinancial.com> >Reply-To: classiccmp(a)classiccmp.org >To: "'ClassCompList'" <classiccmp(a)classiccmp.org> >Subject: Looking for--data on ProLog SBCs >Date: Mon, 12 Mar 2001 10:46:30 -0500 > >Hello, all: > > I came across a small 4-slot cage with three STD BUS boards. One is >an 8085-based SBC (#7805), an I/O board of some sort (#7604). The other is >a >PIO board from another manufacturer. > > Anyway, does anyone have any data on these boards? The Motorola Web >site (new owners of ProLog) doesn't mention these boards (probably because >of their age). > > Thanks. > >Rich _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 4 months

1
0
0 0

SCSI connectivity

by jhellige＠earthlink.net

>Well, you've had better luck that I've had with ADAPTEC PCI products. I just >recently threw out a box of 18 or so 2940AU's none having been used for more >than three months and all dead. With that kind of failure rate, one has to wonder if there's some kind of underlying problem other than the Adaptec boards. Jeff

25 years, 4 months

2
1
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New 'puter joins the collection

by dlw＠trailingedge.com

I'd have to go back and check the tech manuals to be sure but I believe the main difference was the amount of memory on the main board. There were a few other minor differences in the boards but nothing really major as I recall. I have a bunch of new manual scans I just need to finish cleaning up and then I'll place them on my Exidy site. http://www.trailingedge.com/exidy/ Now if I could just find the S100 expansion box and some drives. *wishing hard* :) On Mon, 12 Mar 2001, Mike wrote: > From: Jim Battle <frustum(a)pacbell.net> > > > Do you know if you have the original, or the Sorcerer II? > > > What's the difference between the two models? ----- David Williams - Computer Packrat http://www.trailingedge.com

25 years, 4 months

1
0
0 0

And someone has one... Re: Virus Alert !!!

by steven_j_robertson＠hotmail.com

> > ever heard of any Linux billionaires? > >Yes, but that was last year when RHAT had a $20B market cap. Now they're >just millionaires like you and me. > >Cheers, >Doug > Oh... The Robin hoods of the software world and friends to software engineers everywhere. Wonder how much their developers get paid... Oh that's right, they don't get paid anything. The software is built by well intending engineers and given to them for free... DOH! Makes Bill Gates look like a prince. At least he pays his engineers. Steve Robertson _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

25 years, 4 months

10
9
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TOPS-10 v7.03 Install Proceedure

by healyzh＠aracnet.com

I just finished posting the following to, alt.sys.pdp10, and I figure some others here might be interested in the instructions on how setup the emulator. Note, at this time ts10 works best under Linux. Work is being done to get it working on other UNIX varients, but at this time Linux is your best bet. The following is a *Rough Draft*, but it should be enought to get a system setup. Zane Installation of TOPS-10 v7.03 I'm guessing this might be of use to some people, and it can serve as a starting point to a better document. I'm sure it's in need of corrections, as I've doubts as to wether or not the system is coming up right. The following procedure is mainly based on stuff Greg Satz, Parag Patel, and Timothy Stark have posted. I'd figured out a lot of this, but this looks a lot better than what I'd done :^) Based on Mark Hittinger's comments about the RIB errors which I'd noticed in my first install, I've used 1990 as the year in the following and it seems to have not had any problem. I believe others have done this giving the correct date without any problem though. STEP 1. First get the following tapes from http://pdp-10.trailing-edge.com > BB-X138B-BB KS Bootable TOPS-10 v7.03 tape > BB-X140B-SB TOPS-10 v7.03 Monitor sources > BB-X128B-SB TOPS-10 v7.03 w/sources #1 > BB-FP63A-SB TOPS-10 v7.03 w/sources #2 > BB-FP64A-SB TOPS-10 v7.03 Tools w/sources > BB-X130B-SB CUSP w/sources You can also get the sources for the ts10 emulator here. STEP 2. Apply the following patch. diff -c -r1.1 system.c *** pdp10/system.c 2001/02/27 14:17:06 1.1 --- pdp10/system.c 2001/03/11 22:01:50 *************** *** 120,126 **** } text7[p] = 0; ! sprintf(text, "%012Lo ('%s' '%s')", data, text6, text7); return text; } --- 120,126 ---- } text7[p] = 0; ! sprintf(text, "%012qo ('%s' '%s')", data, text6, text7); return text; } *************** *** 348,355 **** // int reqBoot = FE_P0_MONITOR_PREBOOT; // int reqBoot = FE_P0_DIAGNOSTIC_PREBOOT; // int reqBoot = FE_P0_BOOTCHECK2_PREBOOT; ! uint8 inBuffer[0777 * 5]; ! int36 inBlock[0777]; int36 idHom = util_PackedASCII6("HOM"); int36 dAddr36; int36 data36; --- 348,355 ---- // int reqBoot = FE_P0_MONITOR_PREBOOT; // int reqBoot = FE_P0_DIAGNOSTIC_PREBOOT; // int reqBoot = FE_P0_BOOTCHECK2_PREBOOT; ! uint8 inBuffer[01000 * 5]; ! int36 inBlock[01000]; int36 idHom = util_PackedASCII6("HOM"); int36 dAddr36; int36 data36; STEP 3. Startup the emulator. [healyzh@ts10 ts10]$ ./ks10 -f ks10.cfg Welcome to TS10 Emulator v0.7 (Alpha) Unit uba: had been created. Addr=776700 Mask=000077 IntBR=6 IntVec=254 Addr=772440 Mask=000037 IntBR=6 IntVec=224 Device RPA0: had been created. Device RPA1: had been created. Device MTA: had been created. Device MTA0: had been created. Device MTA1: had been created. Device MTB: had been created. Device MTB0: had been created. Device MTB1: had been created. Unit rha0 had been initialized. Unit rpa0 had been initialized. Unit rha1 had been initialized. Unit mta had been initialized. Unit mtb had been initialized. Unit 0 dType RP06 Unit rpa0 had been attached with 'tops10_703.dsk' file. Unit 0 dType TU45 Unit mta0 had been attached with 'tops10_703_ksbootable_bb-x138b-bb.tap' file. TS10> boot mta0: Booting MTA0... Now running... BOOTM V6(37) BTM>/tm02 KS10 03-19-86 Why reload: new Date: 11-mar-90 Time: 11:00 Startup option: destroy % WARNING: All structures will be refreshed. All disk files will be destroyed. All information on currently spinning packs will be lost. Do not proceed unless you are positive that you want to do this. Proceed? (Y or <CR>)y HOME blocks written on all units RPA0 first BAT block consistency error RPA0 second BAT block consistency error Both BAT blocks are bad. Do you want to initialize the BAT blocks on this unit? y Not normally done, are you sure? y Initializing BAT blocks Start system? (Y or <CR>)y Disk file structures: DSKB:RPA0(ONC403) To automatically log-in under [1,2] type "LOGIN" KS10 11:00:10 . LOGIN .ASSIGN MTA0: TAPE: MTA000 assigned .GET TAPE:BACKUP Job setup .SAVE BACKUP BACKUP saved .RUN BACKUP /TAPE TAPE: /SUPERSEDE ALWAYS /INTERCHANGE /FILES /RESTORE SYS:=*.* ! SYSTEM EXE "Done /RESTORE DEC:=*.* ! SMFILE EXE SMFILE HLP SMFILE TXT T10KL ULD KSBOOT EXE BOOTM RDI T10KL RAM "Done /EXIT [^E pressed] .TS10> attach mta0: cuspmar86binsrc_1of2_bb-x128b-sb.tap Unit 0 dType TU45 Unit mta0 had been attached with 'cuspmar86binsrc_1of2_bb-x128b-sb.tap' file. TS10> continue Running now... .RUN BACKUP /TAPE TAPE: /INTERCHANGE /SUPERSEDE ALWAYS /PROTECTION 055 /FILES /RESTORE DSKB: [a lot of filenames print out] $BKPEOT Reached EOT--mount new tape then type "GO" [^E Pressed] /TS10> attach mta0: cuspmar86binsrc_2of2_bb-fp63a-sb.tap Unit 0 dType TU45 Unit mta0 had been attached with 'cuspmar86binsrc_2of2_bb-fp63a-sb.tap' file. TS10> continue Running now... GO [a lot more filenames print out] "Done [^E pressed] .TS10> attach mta0: cuspmar86binsrc_1of2_bb-x128b-sb.tap Unit 0 dType TU45 Unit mta0 had been attached with 'cuspmar86binsrc_1of2_bb-x128b-sb.tap' file. TS10> continue .RUN BACKUP /TAPE TAPE: /INTERCHANGE /SUPERSEDE ALWAYS /PROTECTION 055 /FILES /@dskb:[10,7,build]cusps.rst [You'll need to change to the second tape when it wants you to. When this is done, make the disk bootable.] .RUN DEC:SMFILE DECSYSTEM 2020 DIAGNOSTICS FE-FILE PROGRAM VERSION 2.5, TOPS-10, KS10, CPU#=5000 [FOR HELP TYPE "HELP"] SMFILE>WRITE SETUP DSKB:[1,5\5\4] SMFILE>WRITE RESET SMFILE>READ DEC:T10KL.ULD SMFILE>WRITE CRAM SMFILE>WRITE BOOT DEC:KSBOOT.EXE SMFILE>WRITE DONE SMFILE>EXIT EXIT .R CREDIR Create directory: ACT: [^E pressed] TS10> quit STEP 4. Now you should be ready to startup your system from disk. [healyzh@ts10 ts10]$ ./ks10 -f ks10.cfg Welcome to TS10 Emulator v0.7 (Alpha) Unit uba: had been created. Addr=776700 Mask=000077 IntBR=6 IntVec=254 Addr=772440 Mask=000037 IntBR=6 IntVec=224 Device RPA0: had been created. Device RPA1: had been created. Device MTA: had been created. Device MTA0: had been created. Device MTA1: had been created. Device MTB: had been created. Device MTB0: had been created. Device MTB1: had been created. Unit rha0 had been initialized. Unit rpa0 had been initialized. Unit rha1 had been initialized. Unit mta had been initialized. Unit mtb had been initialized. Unit 0 dType RP06 Unit rpa0 had been attached with 'tops10_703.dsk' file. Unit 0 dType TU45 Unit mta0 had been attached with 'tops10_703_ksbootable_bb-x138b-bb.tap' file. TS10> boot rpa0: Booting RPA0... [Reading first HOM block...] [Reading FE-FILE Page 0 at C 213 T 11 S 1] [Reading Monitor Pre-boot at C 213 T 13 S 13] Now running... BOOT V3(47) BOOT> [Loading from DSKB:SYSTEM.EXE[1,4]] KS10 03-19-86 Why reload: sched Date: 11-mar-90 Time: 19:36 Startup option: go [Rebuilding the system search list from the HOMe blocks] [Rebuilding the active swapping list from the HOMe blocks] [Rebuilding the system dump list from the HOMe blocks] KS10 19:36:01 CTY system 5000 Connected to Node (0) Line # 42 .LOGIN 1,2 .R OPSER [OPRPAF Processing auto command file] ?OPRALF LOOKUP failure 0 * [CCPWFD Waiting for file daemon to start] %%TTY STOMPER - Starting *^C .R LOGOUT [LGTOUL Other users logged-in under [1,2]] Job 2 User OPSER [1,2] Logged-off CTY at 19:36:42 on 11-Mar-90 Runtime: 0:00:01, KCS:10, Connect time: 0:00:41 Disk Reads:126, Writes:0, Blocks saved:0 .LOGIN 1,2 Job 2 KS10 CTY [LGNJSP Other jobs same PPN] [LGNLAS Last access to [1,2] succeeded on 4-Mar-86:17:48:53] 19:36 11-Mar-90 Sunday . SYSTAT Status of KS10 at 19:49:53 on 11-Mar-90 Uptime 13:52, 117% Null time = 117% Idle + 0% Lost, 0% Overhead 12 Jobs in use out of 35. 12 logged in, 10 detached. Job Who Line# What Size(P) State Run Time 1 [OPR] DET41 STOMPR 7+8 SL 1 01 2 [OPR] CTY SYSTAT 21+SPY RN 1 4 [OPR] DET41 ACTDAE 180+39 SL 4 5 [OPR] DET41 DAEMON 20+SPY SL 1 6 [OPR] DET41 FILDAE 17 HB 0 7 [OPR] DET41 QUASAR 108+39 SL 2 8 [OPR] DET41 PULSAR 65+39 HB 1 9 [OPR] DET41 CATLOG 30+39 HB 1 10 [OPR] DET41 ORION 96+39 SL 2 11 [OPR] 41 4 ^C 0 17 [OPR] DET41 BATCON 38+39 SL 1 29 [OPR] DET41 LPTSPL 58+39 HB 1 n means job runs in HPQ n High Segments: Program Device Owner High(P) Users INITIA DSKB [SYS] 8 1 GLXLIB DSKB [SYS] 39 7 Swapping space used = 655/2000 = 33% Virt. Core used = 691/2000 = 35% 84P Core left Active swapping ratio = 21/775 = .02 Virt. Core saved by sharing = 234/(234+691) = 25% Average job size =644/12 = 53.6P+281/12 = 23.4P Total=925/12 = 77.0P No busy devices System File Structures: Name Free Mount DSKB 213910 2 Total Free 213910 . -- | Zane H. Healy | UNIX Systems Administrator | | healyzh(a)aracnet.com (primary) | OpenVMS Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

25 years, 4 months

3
2
0 0

Found a Commodore SX-64 but with a strange problem.

by spectre＠stockholm.ptloma.edu

> This was one of the few missing things in my CBM collection until yesterday. > The system first appeared dead, showing just a blank screen. But then it > worked fine with any of my assorted game cartridges in the cartridge slot. > To test the disk drive, I pulled out a cartridge-based spreadsheet which had > load and save commands and the disk drive worked OK. > > The big surprise was when I put in the Simons Basic cartridge and this heavy > old "portable" C64 came up with its normal opening screen "SX-64 Basic" etc > and it loaded and ran a variety of programs from disk without a problem. But > without a cartridge, or with a C64 Super Expander cartridge, just a blank > screen. Differential diagnosis of a blank screen on a Commodore (I'm a med student :-) ------------------------------------------------------------------------------ If the screen is *black* your first suspects, in order, are the PLA and then the VIC-II. Also, as always, check the fuse. I'm guessing that the blank screen you get is a *white* screen and possibly a cyan border? If cartridges work, as they do in yours, the problem is clearly one of the ROMs. Since the disk drive is operational my first guess is the BASIC ROM, which is fortunate for you because the Kernal ROM is unique to the SX :-) I don't remember the number on it, though, but the SX Kernal should be labelled 251104 with possibly a revision number (-04?). DON'T swap that one out. The BASIC ROM is probably labelled 901226 but that's in the breadbox systems. You can take that from any regular C64, and it should work fine. If both ROMs are shot, all is not lost if you have an EPROM burner -- see this wonderful archive: http://www.funet.fi/pub/cbm/firmware/computers/c64/index.html Just my $0.02! (You adjust for AUS$.) -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- Mickey Mouse wears a Spiro Agnew watch. ------------------------------------

25 years, 4 months

3
2
0 0

Found a Commodore SX-64 but with a strange problem.

by rhblake＠bigfoot.com

Hmmm it doesn't sound normal. The SX model usually has problems with the keyboard cable for the most part. -----Original Message----- From: owner-classiccmp(a)classiccmp.org [mailto:owner-classiccmp@classiccmp.org]On Behalf Of Phil Guerney Sent: Tuesday, March 11, 2025 5:01 AM To: classiccmp(a)classiccmp.org Subject: Found a Commodore SX-64 but with a strange problem. OK - So it might not be strange to those experts in Commodore hardware, so I hope one of them reads this! This was one of the few missing things in my CBM collection until yesterday. The system first appeared dead, showing just a blank screen. But then it worked fine with any of my assorted game cartridges in the cartridge slot.

25 years, 4 months

2
1
0 0

Found a Commodore SX-64 but with a strange problem.

by claudew＠videotron.ca

Hi Lucky guy a SX64,,,but it depends how much you paid...I was offered one for $500CAN not too long ago....sure I am crazy... I would check all chips on the boards and push on all of the socketed ones...specially the ROMs.... By the way, I have been told that 5000 of these SX64 were made...does that sound right or can someone confirm this? Claude ----- Original Message ----- From: Phil Guerney <guerney(a)bigpond.com> To: <classiccmp(a)classiccmp.org> Sent: Tuesday, March 11, 2025 6:00 AM Subject: Found a Commodore SX-64 but with a strange problem. > OK - So it might not be strange to those experts in Commodore hardware, so > I hope one of them reads this! > > This was one of the few missing things in my CBM collection until yesterday. > The system first appeared dead, showing just a blank screen. But then it > worked fine with any of my assorted game cartridges in the cartridge slot. > To test the disk drive, I pulled out a cartridge-based spreadsheet which had > load and save commands and the disk drive worked OK. > > The big surprise was when I put in the Simons Basic cartridge and this heavy > old "portable" C64 came up with its normal opening screen "SX-64 Basic" etc > and it loaded and ran a variety of programs from disk without a problem. But > without a cartridge, or with a C64 Super Expander cartridge, just a blank > screen. > > Could it be a RAM chip that is faulty, with Simons Basic causing some > relocation of memory that allowed the system to work? Unfortunately, the > insides are not nearly as easy to get at compared to a standard C64. > > Thanks in advance for any suggestions. > Phil > (Brisbane, Australia) > >

25 years, 4 months

6
6
0 0

SCSI connectivity

by ajp166＠bellatlantic.net

From: Chad Fernandez <fernande(a)internet1.net> > >EISA won't go into an ISA system, either. Yes, but most ISA-8 or and ISA-16 cards do fit EISA and VESA bus machines as they generally provide ISA. I know that as I have a boat load of antiques at work still running. >I don't think any wide scsi >ISA cards exist. Ebay, again, is the best source for an EISA scsi card. Most wide SCSI drives work just fine with narrow. It's not as if the machine is likely to be fast enough to really use wide SCSI performance. I generally use a ISA card from ADAPTEC as I have a 1542 and a 2906 (PCI) handy. That works in everything but the XT class boxen and MCA. Allison

25 years, 4 months

7
21
0 0

new additions: IBM S36, kaypro and more

by SUPRDAVE＠aol.com

it's been quite some time since Ive picked up anything new. I've reached critical mass and have had to pass by on machines which I already own except for IBM PS/2s which I salvage for adaptor cards. anyway, just this past week, I beat out several others and responded to an email about a free kaypro 10. Its in great shape and will get the disks for it later hopefully. also got an amstrad PC20 with second floppy drive and the special mouse, two mac quadra 630 and just today got an IBM 5364 which is a S/36 PC complete with the display unit and funky cables. didnt get the keyboard though. Anyone have a keyboard for an IBM 3196? Later, I discovered I left behind the host IBM PC 5150 that was there too so i returned for that. It even has the S36 boot floppy still in the drive with dust on it. Can't do an IPL though, probably because the S36 keyboard is missing. Not much info can be found on the 5364, but will make a good addition to my IBM PC RT 6150. DB Young Team OS/2 antique computer collection, hot rod pinto, and more at: http://www.nothingtodo.org

25 years, 4 months

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SCSI connectivity

by ajp166＠bellatlantic.net

From: Chad Fernandez <fernande(a)internet1.net> > >What is DRivX? Is that a Linux program or is it Windows or DOS? Somthing I fond on a bbs about 9 years ago. Runs under dos but doesnt actually use dos IO. >Well yes, I know it won't be fast, but this is for an XT class system >:-) Expect less. ;) > >Cool, I get board with a perfectly working computer with nothing for it >to do. Some of them run the same apps I've used for years...sometimes for profit. I do remember the not so boring years with them. Then I find another and start over. >I get frustrated with PCs as well. I hate it when stuff won't fit >together, correctly, for instance. Unfortunetly, PCs are about all I >have, until I pick up my PDP11/53 Monday or Tuesday :-) Ah a late model Qbus machine. The PDP-11 collection inculeds: LSI-11/03 PDP-11/23 PDP-11/23B PDP-11/73 Also a PDT-11/130 Pro350 Pro380 An ex digit (DEC employee). Allison

25 years, 4 months

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SCSI connectivity

by ajp166＠bellatlantic.net

From: Eric J. Korpela <korpela(a)ellie.ssl.berkeley.edu> >The classic-cmp question I have is at what point is a machine too slow for >SCSI, and how do things degrade as a machine gets slower. My Apple IIgs Well expereince is that there is no too slow. I have SCSI on a 4mhz Z80 and it's decently fast compared to the MFM bridge controllers. > But I assume there is a point at which things >break if bytes don't move fast enough. Anyone know what that point is? I've No such point. I've run SCSI on said same z80 at 1mhz clock (testing something else). SCSI does not have a minimum speed. >been thinking about sticking an 8 bit SCSI card in my old Epson PC which, >because of brain damaged bus design can only pull 150 kB/s off of its drives. >Think it will work? Yes. Likely it will be faster. Most of the "slow" older PCs were due to the limited buffers on the then current disk controllers. My Leading Edge D running the 8088 (4.77mhz) ran much faster with the 8bit IDE adaptor (acculogic) and a WD420mb IDE. Allison

25 years, 4 months

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carter afb

by ajp166＠bellatlantic.net

From: <many echos> >> I have a 1969 AMC Javelin SST - 343 with a Carter AFB Carb - my Likely it was a bug, aka Outlook virus that echoed an Email and the attachment was likely the bugs pass along. Allison

25 years, 4 months

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SCSI connectivity

by ajp166＠bellatlantic.net

From: Jeff Hellige <jhellige(a)earthlink.net> >>In general, I'd say that if you can find an alternative to ADAPTEC, at least >>with their PCI products, I'd use the alternative. > > I've never had any problems with the 2930U with CD-R's, >scanners and hard disks. I've not used the 2940U2B enough to make a >judgement yet. I'll likely be running both in the same machine soon >though so that I don't have to try and mix the LVD and SCSI-2 stuff >on the same bus. The 2930U would be just for legacy stuff I don't >feel like upgrading anyway, such as my scanner. Same here. the 2930 series (most are U but I have a u2B)is a good board that seems to be unbreakable. I must have at least 6 in use plus another here at home. Two of those were installed to support Plextor CDwriters exclusively on systems with IDE disks. Mixing drive interface types on SCSI busses is somthing I DO NOT do, two many performance impacts. Allison

25 years, 4 months

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Ack! Where did all the VCF4 go??

by spectre＠stockholm.ptloma.edu

Did someone preserve the pictures from VCF4? Curt's excellent retrospective on AtariHistory.com doesn't work anymore :-/ http://www.atari-history.com/vcf4/vcf4.html Clicking on the pictures (except vendor2.html) just gives 404s. -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- It is not enough to succeed. Others must fail. -- Gore Vidal ---------------

25 years, 4 months

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2 more Finds for the musuem

by jrkeys＠concentric.net

Well today I hit a small jackpot in that I got a almost complete HP 200LX palmtop PC with 1MB ram, leather carrying case, 3 manuals and other papers, a set of four connectors all new and still wrapped in plastic unopened. It's missing the cable for connecting it to a desktop unit. My other find is a complete Brainiac toy computer from the 1950's. This unit is in it original box with all the parts for building your own wooden computer that really works for doing math and other small task. One of the light bulbs is broken and will need a replacement. The manual is there and seems to be complete also but is showing it's age. Now if I can just find a Geniac toy computer also ??? John Keys

25 years, 4 months

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SCSI connectivity

by ajp166＠bellatlantic.net

From: Chad Fernandez <fernande(a)internet1.net> >> >SCSI is backwards compatible as long as you keep Single Ended and >> >Differential separate. >> >> Thanks for the info... I only work with them for a lving. ;) > >You work with Differential (not LVD) every day? What do you do? Work with LVD too. MIS/magician/systems engineer for small company 40+ clients 5 servers. Not to mention various standalone dedicated systems. >How did you get 30mb/sec out of a 20mb/sec capable hardware setup? Lean to the left and pray, the drive was 7200rpm baracuda running wide. Would have gotten the rated 40 but the system was the limit. Testing was under Linux and only to test hardware tuning. That system runs NT4. >Narrow is 5, 8, or 10, ultra narrow is 20, wide is 20, ultra wide is 40 >and U2W is 80, and U3W (U160) is 160. What VLB card is wide? I don't >think Adaptec has one, do they? I would like to get a VLB wide scsi >card for the computer mentioned above. Knock yourself out and good luck. >What do you use for drive benchmark testing? I use Snooper, but I never Norton, Snooper, DRivX and a few others. Generally if I needs speed IDE does it well enough. SCSI is nice as I can hang a Raid disk farm on it. >I need to rephrase that, the cards are 8-bit ISA, not 8-bit SCSI. Still isn't going to be fast. ISA poops out at 8-10mhz. >I am not trying to be rude, or make enemies, but why are you on a >classic computer list? Your rude. ;) I am an original Altair owner and have a list of classics including things like PDP-8F, PDP-11, Northstar, KIM-1, ELF, TI99/4 and a raft of CP/M systems based on S100. I can even say that most systems are operational with a bunch of the oldies still cranking real work. I've always pushed the hardware for just a bit more. PCs however tend to raise my contempt as not all are quality hardware. I have PCs too but few are "classic" to me despite their age. I consider the PS/2 50Z and my Leading Edge model D to be good examples of PC hardware. This is not to say I'm not skilled at getting all of the performance a PC can deliver. >Sure I want my old computers to run, but I want it to be a fast as I can get >it, while maintaining reliably. ;) and thats something new? Allison

25 years, 4 months

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SCSI connectivity

by ajp166＠bellatlantic.net

From: Chad Fernandez <fernande(a)internet1.net> >What I want it one of the later 1542 cards that isn't plug an play, but >will handle drives over 1 gig. Both my 1542s have the earlier bios and >won't go over 1 gig :-( > ???? The 1542 in the domain server (an old P100) has a 2.7 gb drive in a single partition. You have a bios problem not an interface problem. Allison

25 years, 4 months

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Keeper needed for RSTS and other stuff

by kyrrin＠bluefeathertech.com

Fellow CLASSICCMP'ers, As you may remember, my interests are shifting away from computing and back to ham radio. As a result, I'm in the process of going through my stuff and clearing out what I don't want to keep. Part of my accumulation is a library of RSTS/E releases on 9-track tape. The library covers a range of 7.2 to 9.0, and there are also numerous other reels of miscellany, all on their own floorstand rack about four feet high. I need to find a keeper, or librarian for this. It would be difficult to ship, so I would like to find someone local (WA State, near Seattle) to pick them up and give them a good home, and be ready to, say, copy a distro if someone needed it. Please contact me off-list if you're willing to be the "RSTS/E Archivist." More posts coming up for more goodies. Thanks. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) "I'll get a life when someone demonstrates to me that it would be superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).

25 years, 4 months

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Found a Commodore SX-64 but with a strange problem.

by ard＠p850ug1.demon.co.uk

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25 years, 4 months

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Keeper needed for RSTS and other stuff

by ajp166＠bellatlantic.net

From: Bruce Lane <kyrrin(a)bluefeathertech.com> > As you may remember, my interests are shifting away from computing and >back to ham radio. As a result, I'm in the process of going through my >stuff and clearing out what I don't want to keep. Hi Hi, I"m working on getting my ticket too. I've had the commercial ticket for 31 years but it's time for the HAM. Radio is my second love. Allison

25 years, 4 months

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Stuff Available (WA state)

by kyrrin＠bluefeathertech.com

(CC to classiccmp and port-vax) I have a MicroVAX II, complete, in a four-foot mini-rack with a Fujitsu 'Super Eagle' disk drive and Cipher 880 tape drive. Everything worked the last time I had it powered (about a year ago). I want it to have a good home, but I also have some time and cleanup effort invested in it, so I'd like to ask for $50.00 or best offer. LOCAL PICKUP ONLY. It's too bulky for me to ship. (Kent, WA, southeast of Seattle). Also available: -- Two complete VCB02 video subsystems for the MicroVAX II/III. We're talking boards, cables, cab kit, mice, KB's and monitors. MAKE ME AN OFFER. -- At least one, possibly two, BA23 enclosures with hardware and panels (hardware may require some digging to find). -- Spare boards! MV-II CPU's, memory, etc. I know I have some Dilog ESDI/Q-bus controllers, and there's probably some SMD boards in there as well. Prices to be determined, probably best to make me an offer depending on what you need and what I have. -- Seagate 'Saber' SMD drives, 850MB. These are nice units in their own trays, with power supply and LCD display diagnostics front panel. I have at least two left, possibly three. $25.00 each. -- PDP-11/73: I know I have at least one. Help me dig it out and we'll see! ;-) Lord only knows what else I've got in there... I have yet to go through numerous crates of stuff, but my plan is to clear out pretty much anything that I won't need to keep our server farm/Internet presence intact and healthy. This means most of my DEC stuff. Thanks in advance. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) "I'll get a life when someone demonstrates to me that it would be superior to what I have now..." (Gym Z. Quirk, aka Taki Kogoma).

25 years, 4 months

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Identifying parts on a VT100 logic board

by pete＠dunnington.u-net.com

On Mar 10, 15:18, Paul Williams wrote: > Pete Turnbull wrote: > > They're the VT1xx code ROMs. [...] > Thank you Pete, that was swift and comprehensive! Is this list on the > web anywhere, or do you just happen to keep schematics to hand? Neither; it's from a chart I typed into one of my machines years ago. To be honest, I can't remember where it came from. It may have been gleaned >from assorted sources. Anyway, you just happed to be lucky that I was sitting right beside the relevant machine and online to the time. > Both boards have 23061-E2, 23032-E2, 23033-E2 and 23034-E2, and fifth > ROM elsewhere labelled 23018-E2 (soldered, unfortunately). I'm not sure what 23018-E2 is. Might be a character generator. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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Looking for a PDP8e/trade

by pete＠dunnington.u-net.com

On Mar 10, 18:42, Brian Roth wrote: > I am looking for a complete PDP8e. It doesn't have to win any beauty > pagents but I would like it functional. I have many items to trade or a > combination trade and money. I have a variety of workstations, servers, > SUN, APPLE, COMPAQ , DAT drives,etc. Well, that makes at least (!) two of us :-) I've been looking for one for years :-( -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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new additions: amstrad, S/36 PC and more

by SUPRDAVE＠aol.com

it's been quite some time since Ive picked up anything new. I've reached critical mass and have had to pass by on machines which I already own except for IBM PS/2s which I salvage for adaptor cards. anyway, just this past week, I beat out several others and responded to an email about a free kaypro 10. Its in great shape and will get the disks for it later hopefully. also got an amstrad PC20 with second floppy drive and the special mouse, two mac quadra 630 and just today got an IBM 5364 which is a S/36 PC complete with the display unit and funky cables. didnt get the keyboard though. Later, I discovered I should''ve gotten the host IBM PC 5150 that was there too since it had a special card in it. I will try to go back and rescue that. Not much info can be found on the 5364, but will make a good addition to my IBM PC RT 6150. -- DB Young Team OS/2 old computers, hot rod pinto and more at: www.nothingtodo.org

25 years, 4 months

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rk611 controller available

by William.King＠dadaboom.com

I have a mostly complete, untested rk611 controller available for sale or trade. No reasonable offer refused. As a matter of fact, if you have a 5.25 inch DEC style filler panel or the jumpers that connect a 11/34 CPU to a FPP, I'll trade you for that. The controller includes M7900, M7901, M7902, M7903 modules (one module missing) and the RK611 backplane. Oh yea, buyer pays shipping. Thanks, Bill

25 years, 4 months

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Wanted VAX 750

by azog＠azog.org

Still looking for a hopefully working VAX 750 in NJ area... perhaps stuff to trade, mostly PC stuff tho.

25 years, 4 months

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Looking for a PDP8e/trade

by broth＠heathers.stdio.com

I am looking for a complete PDP8e. It doesn't have to win any beauty pagents but I would like it functional. I have many items to trade or a combination trade and money. I have a variety of workstations, servers, SUN, APPLE, COMPAQ , DAT drives,etc. Please reply off list. Brian.

25 years, 4 months

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Identifying parts on a VT100 logic board

by pete＠dunnington.u-net.com

On Mar 10, 12:41, Paul Williams wrote: > There are four socketed chips together, labelled E40, E45, E52 and E56. > Does anyone have the schematics and know what these contain? They're the VT1xx code ROMs. In a VT100, they are contain ROMs with part numbers 23031-E2, 23032-E2, 23033-E2, and (surprise, surprise) 23034-E2. In a VT100-WC, -WK, or -AC, they contain 23095-E2, 23096-E2, 23139-E2, 23140-E2; the -WC and -WK variants also have an extra character ROM, 23094-E2. A VT125 or VT105 should have the same as a plain VT100 except that the 23031-E2 is replaced with a 23061-E2. > The fourth chip, E45, is labelled differently on the two boards > > Board 1. Signetics K8340 / CN7295N / 23-033E2-00 / (c) DEC 1978 > Board 2. [logo S] 8015E / C48008 / 23033E2 > > I assume that 23033E2 is DEC's part number, but I can't find references > for either 8340 or 8015. Is this another ROM? Yes, 23 means a mask ROM, the next three digits are the ROM code number, and the E2 is the size (2K in this case; E3 is 4K, E4 is 8K, etc). 8340 and 8015 are probably the date of manufacture. -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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Identifying parts on a VT100 logic board

by pete＠dunnington.u-net.com

On Mar 10, 14:16, Lawrence LeMay wrote: Yep, those rows are in my table too. Now I know where I got it :-) I've also got a table of ROMs for the AVO board. Is that from the same place? Any more? To save Paul some retyping, if he wants to put it on a web site, here's the file: VT100 Series ROMS ================= Terminal Board -------------- ROM0 ROM1 ROM2 ROM3 Chargen VT100 031 032 033 034 - or 061 - - - - VT100-WC,-WK 095 096 139 140 094 VT100,VT1xx-AC 095 096 139 140 - VT132 095 096 097 098 - or 180 181 182 183 - VT125, VT105 061 032 033 034 - Advanced Video Option Board --------------------------- A B C D VT100 - - - - VT100-WA,-WB 069 - - - VT100-WC,-WK 152 - - - VT1xx-AC 284 185 - - or 186 187 - - VT132 099 100 - - or 236 237 238 239 or 224 225 226 227 VT125,VT105 - - - - -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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Identifying parts on a VT100 logic board

by pete＠dunnington.u-net.com

On Mar 10, 14:16, Lawrence LeMay wrote: > And the VT132 has either 23095E2, 23096E2, 29097E2, 29098E2, OR > 23180E2, 23181E2, 23183E2, 23183E2 > > Now you have all the information from Table 5-7, from page 5-68 of > the VT100 Series Video Terminal Technical Manual ;) Yep, those rows are in my table too. Now I know where I got it :-) I've also got a table of ROMs for the AVO board. Is that from the same place? Any more? -- Pete Peter Turnbull Network Manager Dept. of Computer Science University of York

25 years, 4 months

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HP9877 External Tape Memory

by ard＠p850ug1.demon.co.uk

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25 years, 4 months

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SCSI connectivity

by ajp166＠bellatlantic.net

> Has anyone used one of these before? Granted the speed is >going to be limited by going through the parallel port, but it's an >easier solution than finding and installing an ISA/EISA/MCA SCSI card >for occasional use of a SCSI CD-ROM or some such item. > Jeff It will likely not be fast enough for a CDwriter. The only SCSI interface thats hard to find is the MCA as ISA/EISA is the same board and generally available cheap (under 60$) if you dont need a bootable model. Allison

25 years, 4 months

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Now we are into cars and planes

by ajp166＠bellatlantic.net

From: Mark Gregory <gregorym(a)cadvision.com> >I seem to recall Stephen Coonts mentioning the A-6's nav system computers in >"Flight of the Intruder". IIRC, there's a passage where the navigator resets >the computer, and its mentioned that it uses rotating drum memory. That Your memory is correct. Also trying to "reset" it harder to unjam the drum. >would make sense for early versions of the A-6, since they were designed in >the late 1950's. Because of the A-6's extraordinarily long service life, it >wouldn't surprise me if it hadn't been fitted with every generation of >computer technology from drums to microchips during its many avionics >overhauls. At least 3 possibly 4 generations with the "Wild Weasels" EA-6s being in the more recent group with ARM, ECM and high altitude radar tracking platform. Early aircraft computers (pre 1980 as they generally had a 2-10 year lead over commercial) would be an area of interest here. Allison >Cheers, >Mark. >

25 years, 4 months

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'Metric' Time (was: New Here)

by jeff.kaneko＠juno.com

On Mon, 5 Mar 2001 12:56:44 -0800 (PST) Ethan Dicks <ethan_dicks(a)yahoo.com> writes: > --- Tony Eros <tony.eros(a)machm.org> wrote: > > Yeah, let's get rid of all those stupid non-metric > > measurements. Especially those pesky units of time. I mean, what > idiot > > came up with "seconds", "minutes" and "hours", anyway? The > "hours" even > > repeat twice every "day" -- how stupid is that! > > Hopefully this is meant humorously. The second _is_ a metric unit > of time, even though minutes/hours/etc are not reckoned in decimal > intervals. Actually, this idea of 'metric' time is nothing new. There exists watches from the late 18th and early 19th centuries, whose dials read *ten* hours, divided up into 100 minutes of 100 seconds each. Most of these came from France, as a government decree made them necessary, as per this quote from: http://www.xs4all.nl/~rkeulen/watch/metric.html "During the Revolution, the French tried to reenforce the 12 months/ 360 days - year, using a decimal timescale, adding 5 days of festivities at the end of the year. A day consisted of 10 hours of 100 minutes. Minutes were devided in 100 seconds. 10 days made a "week", called a "dekade". There were 30 days in a month. The republican calendar was not a succes and lasted only from 1793 till 1805." It appears that 'metric' timekeepers (and timekeeping) were unpopular even in their own day. (Aren't you glad?) OB Classic (to keep this even remotely n topic): The Jacquard Loom was developed at the end of this period, the worlds first programable piece of manufacturing equipment. (Perhaps those 9-day work-dekades were beginning to piss him off . . . .). ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj.

25 years, 4 months

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Now we are into cars and planes

by gregorym＠cadvision.com

-----Original Message----- From: Joe <rigdonj(a)intellistar.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Friday, March 09, 2001 8:12 PM Subject: Re: Now we are into cars and planes >At 07:09 PM 3/9/01 -0500, Alison wrote: >>From: Joe <rigdonj(a)intellistar.net> >>>> >>>>The A6 intruders during the Veitnam era were serial based on >>>>a fixed disk. It was part of the nav and targeting system and >>>>not fly by wire. >>>> >>>>Allison >>> >>> I recently had a memory unit for an EA-6. It used core memory. It >>was >>>SN 001 and the ICs dated from 1966 if I remember right. Of course, there >>>was probably more than memory in the EA-6. I sold the unit but I can dig >>>out the description and pictures if anyone's interested. >> >> >>EA-6 is later and used updated hardware. > > It's hard to think of core memory as "updated" hardware. :-) I hate to >imagine what an *earlier* fixed disk looked like! > > Joe > I seem to recall Stephen Coonts mentioning the A-6's nav system computers in "Flight of the Intruder". IIRC, there's a passage where the navigator resets the computer, and its mentioned that it uses rotating drum memory. That would make sense for early versions of the A-6, since they were designed in the late 1950's. Because of the A-6's extraordinarily long service life, it wouldn't surprise me if it hadn't been fitted with every generation of computer technology from drums to microchips during its many avionics overhauls. Cheers, Mark.

25 years, 4 months

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Need docs on Dataproducts Typhoon 20 printer

by rhblake＠bigfoot.com

While the printer isn't 10 yrs old it is semi-obsolete by industry standards for commercial machines. I have obtained a Dataproducts Typhoon 20 in great condition and need documentation for it and Dataproducts has none on their site. They do have software but the Win98SE drivers are actually better. The printer is essentially the same as a Xerox 4520/4520mp or a Compaq PageMarq 20 with differences being mostly in the electronics (logic board). Otherwise all three printers are same-o, same-o. If anyone has a manual they don't need and want to sell/trade for or know of an electronic copy somewhere I could download it would be appreciated.

25 years, 4 months

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Identifying parts on a VT100 logic board

by flo＠rdel.co.uk

I've just received some VT100 boards and I have several questions. I have a VT125 case containing monitor and PSU, but with an empty card cage. Can I just plug in a board and fire it up? (Assuming that the PSU is OK, since I wouldn't know how to load it in order to test it.) There are four socketed chips together, labelled E40, E45, E52 and E56. Does anyone have the schematics and know what these contain? Three of these (E40, E52 and E56) contain AM9218 2Kx8 ROMs, but I can't find a pinout of this. Is there a pin-compatible EPROM (2716?) that I could set my PROM programmer to, in order to upload these? The fourth chip, E45, is labelled differently on the two boards Board 1. Signetics K8340 / CN7295N / 23-033E2-00 / (c) DEC 1978 Board 2. [logo S] 8015E / C48008 / 23033E2 I assume that 23033E2 is DEC's part number, but I can't find references for either 8340 or 8015. Is this another ROM? Paul

25 years, 4 months

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RFC: ROM dump archive

by optimus＠canit.se

Since I've got myself a pretty little EPROM burner, and seem to have a lot of ROMs and ROM sockets around, I thought that it should be worthwhile to create a central repository for all those ROMs which are so difficult to get nowadays. Is this a good idea, or has somebody already done it? I don't care much about copyrights, though I wouldn't want to go against the wishes of the actual owners of the software contained. Any thoughts? -- En ligne avec Thor 2.6. VIRGO (Aug 23 - Sept 22) You are the logical type and hate disorder. This nitpicking is sickening to your friends. You are cold and unemotional and sometimes fall asleep while making love. Virgos make good bus drivers.

25 years, 4 months

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Now we are into cars and planes

by ajp166＠bellatlantic.net

From: Joe <rigdonj(a)intellistar.net> >> >>The A6 intruders during the Veitnam era were serial based on >>a fixed disk. It was part of the nav and targeting system and >>not fly by wire. >> >>Allison > > I recently had a memory unit for an EA-6. It used core memory. It was >SN 001 and the ICs dated from 1966 if I remember right. Of course, there >was probably more than memory in the EA-6. I sold the unit but I can dig >out the description and pictures if anyone's interested. EA-6 is later and used updated hardware. > I've got a Lantirn targeting computer right now but I haven't opened it >up yet to see what's inside. I've also got a largeish aircraft navigation >computer but I don't know what it came out of and I haven't opened it up >yet either. Interesting, some were generally known machines majorly repackaged or standard hardware special boxes. Allison

25 years, 4 months

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Now we are into cars and planes

by ajp166＠bellatlantic.net

From: Joe <rigdonj(a)intellistar.net> >>EA-6 is later and used updated hardware. > > It's hard to think of core memory as "updated" hardware. :-) I hate to >imagine what an *earlier* fixed disk looked like! > It's my understanding that the first version was of the same general design as Minuteman-1 missle computer and similar transistor machines of the early 60s. Even the Accumulator was a "track" on the multi headed disk. Allison

25 years, 4 months

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Old complete terminal in a keyboard found...Synertek System Corp KTM-3..odd?

by LFessen106＠aol.com

<< Is it fully populated or are there some empty places. It came in two versions. 40 and 80 column. The 40 was missing a number of chips. If it is a real 80 column, I'm looking for one. I already have two 40 column ones. I also have schematics for these on blue print paper. I could make copies for anyone that needed them. Dwight PS It is composite video. You just need the screen to make a full keyboard/monitor. >> That is just too cool! I have to have one.... What kind of terminals are they, and does anyone have a spare they would like to get rid of? -Linc.

25 years, 4 months

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Old complete terminal in a keyboard found...Synertek System Corp KTM-3..odd?

by LFessen106＠aol.com

In a message dated Fri, 9 Mar 2001 8:03:18 PM Eastern Standard Time, Claude <claudew(a)videotron.ca> writes: << Hi Well for me too things have been pretty slow my collection is growing and it is now tougher and tougher to find new stuff... Oh yes, I am still hunting for these things : Next box Claude -- The Canuck Computer Collector http://computer_collector.tripod.com >> Claude, I have a friend that has *PILES* of NeXT boxen, their monitors and printers as well. He wishes to sell them very reasonably. The only caveat is he has no cables for them... Anyhow you (or anyone else looking for one) can contact Dave McGuire by email at mcguire(a)neurotica.com Please do me a favor and tell him that Linc sent ya. BTW, for those of you who like to trade equipment, he likes older DEC equipment. -Linc. P.S. If any of you have any NeXT cables, please let me know - I am looking for a mono cable (DB15?) and can't find any anywhere!

25 years, 4 months

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Old complete terminal in a keyboard found...Synertek System Corp KTM-3..odd?

by claudew＠videotron.ca

Hi Well for me too things have been pretty slow my collection is growing and it is now tougher and tougher to find new stuff... I found an older terminal in a keyboard from a company called: KTM-3/80 from Synertek Systems Corporation Production date : 3/24/81 Looks like a self-contained terminal in a keyboard with a composite video out (or rf?). Very odd looking for me and I dont recall seeing a lot of these things way back. I have not tested it yet but if anybody is interested, Ill take a picture and post the link here. The thing has a flat cable with a db25 sticking out from it. Its just slightly thicker than an "ordinary" keyboard... On/Off switch, P.S. jack, RCA jack and someone (thanks!) stuck a piece of paper that gives the DIP SW settings for the baud rate etc under the keyboard... Ill check the P.S. requirements and test the thing eventually. If anybody collects terminals, I might be tempted to trade or giveaway this thing...After all original collecting was supposed to be Apple computers only...now includes all micros 197x-198x...I dont wanna start collecting terminals... Oh yes, I am still hunting for these things : Next box, LC575 or Color Classic board (my color classic is missing one), anything micros 197x-198x...Always interested in trades (I dont sell stuff) see my site... Claude -- The Canuck Computer Collector http://computer_collector.tripod.com

25 years, 4 months

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