test-drb

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101090 discussions

by ajp166＠bellatlantic.net

From: Fred deBros <fdebros(a)verizon.net> >Is there an ISA card that has the IDE irq assignable to any IRQ? Older ones did. IDE IRQs were 15 and 14. >U guessed right: I'd like to stick a secondary ide drive (CDROM >obviously) into a 486 that has only one ide (IRQ14)drive, but no plug >for a secondary drive, and no, I cannot use the ide cable as it is a >laptop, but yes, it has the bus connected to a dockstation. And yes I yes you can. I've done it. one of my 486boxen has 3 CDroms and a 500mb IDE disk. It serves as a CD server running Win95. Some of the real early 486s the bios was a bit poor but most of the better ones it's been no problem. FYI: for the CDrom you simply do nothing at the bios level and it's the OS that has to find and install the CDrom. If the cdrom is a standard the win95 drivers will do though I've had a few oddballs that I had to use the driver supplied with the drive. Allison

23 years, 11 months

Anyone need 2112 RAMs

by mhstein＠canada.com

Yeah, I saw those (at Active, right?); in fact here they were 5 for 10 cents. Bought a couple packs myself but alas, I don't know of anything that uses them, not PETs anyway; I think you're thinking of 2114s, 1Kx4. There were 4 versions of the static RAM PETs: (6316 ROMs equivalent to 2316B) 320008: 6540 ROM, 6550 RAM & VRAM 320081: 6316 ROM, 6550 RAM & VRAM 320132: 6540 ROM, 2114 RAM & VRAM 320137: 6316 ROM, 2114 RAM & VRAM The Dynamic RAM PETs used 2114/6114s for VRAM. ROMS used include 2316/6316, 2332, 2364/6364. RAMS used include 5298, 4108, 4116 Parallel disk drives used 2114s. mike ----------Original Message----------- >Date: Thu, 02 May 2002 21:19:24 -0400 >From: Arlen Michaels <arlen.michaels(a)sympatico.ca> >Subject: Anyone need 2112 RAMs? >I was surprised to find a local supplier clearing old stock of 2112 RAMs. <snip> >I believe this was the chip used in late-model Commodore PETs <snip>

23 years, 11 months

APPLEVISION Monitor

by acme_ent＠bellsouth.net

> From: Richard Erlacher <edick(a)idcomm.com> > The problem is that the popular U.S. vendors expend entirely too much of their > resources on packaging, thinking, perahaps correctly, that it will help sales, > but they forget, oir perhaps not, that the individualized packaging will make > their systems difficult to upgrade over time, thereby making the long-term > usefulness of considerably less value. Dick, I believe they do this deliberately, to inhibit upgrades and repairs. I make a lot on upgrades and repairs of systems I originally built and sold, but the big names only make money when they sell a machine, so naturally they prefer that people replace their PCs instead of fixing them or beefing them up. When people come into my shop and I can get them to understand "total cost of ownership," they buy from me every time. Glen 0/0

23 years, 11 months

id these weird ics?

by rigdonj＠cfl.rr.com

Today I picked up a wire wrap card with some strange ICs. They're 16 pin dips with white ceramic bodies and gold lids and legs. They have the numbers 7552-1C and 7350 on them. I believe the 7350 is a date code. There are other ICs on the card and they're all date coded to 1973. There's also a note on the board that says that it was modified on 7/25/74. There's also a trademark symbol on the ICs that looks like a black box with a lower case "i" showing through in gold. I don't think I've ever seen this trademark before, does anyone know what company it's for? Anyone know what the ICs might be? Joe

23 years, 11 months

Documation M200/DEC CR11 card reader manual/info needed

by djg＠drs-esg.com

Hans B Pufal wrote: >Vintage Computer Festival wrote: >> I need the pinouts of the card reader interface. Does anyone have this >> information? Is the service manual available online (in some nook I >> haven't looked into yet)? > >I found it on the web somewhere, I am putting a copy on line for you at >www.aconit.org/hbp/m200ref.pdf it is about 21Mb. Give my upload a few >minutes to complete. > The scan was from my site http://www.pdp8.net/query_docs/query.shtml If anybody knows of an extra card weight around I need one for my M-200. David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights.

23 years, 11 months

request for shipping help - PDP-11/34 from MA to MO

by jwest＠classiccmp.org

Greetings folks: Bob Shannon has a PDP-11/34 rack system for me in Massachusetts sitting in his garage. I can take care of having it shipped from any location that has a loading dock, so the shipping isn't a problem as long as it is shipped sometime within the next week or two at most. However, the shipper will want it banded to a pallet and shrinkwrapped and Bob doesn't have the stuff to do that, nor does he have a loading dock. Is there anyone who might be able to assist getting the system banded to a pallet and shrinkwrapped, and possibly to a loading dock that the shipper will pick up from? Any thoughts or assistance is greatly appreciated. Thanks! Jay West

23 years, 11 months

os/2 warp3 install disk showed up missing

by rhudson＠cnonline.net

must be 10 years old... mebe not... anyway my install disk has vanished, I have the whole rest of the .2x10^2 disks (thats about 20 right(^: ) can anyone help me out? ron.

23 years, 11 months

Ok, Floppy Experts...

by dquebbeman＠acm.org

Well, here is the pinout of the typical IBM external floppy drive (5.25) & interface: External Diskette Adapter -----------------------, unused 1 | Diskette Drive unused 2 | ,----------------------- unused 3 |----------------| 2 unused unused 4 |----------------| 4 unused | |----- alignment slot unused 5 |----------------| 6 Drive Select 4 Index 6 |<---------------| 8 Index Motor Enable C 7 |--------------->| 10 Drive Select 1 * Drive Select D 8 |--------------->| 12 Drive Select 2 * Drive Select C 9 |--------------->| 14 Drive Select 3 * Motor Enable D 10 |--------------->| 16 Motor On * Direction Select 11 |--------------->| 18 Direction Select Step 12 |--------------->| 20 Step Write Data 13 |--------------->| 22 Write Data Write Gate 14 |--------------->| 24 Write Gate Track 00 15 |<---------------| 26 Track 00 Write Protect 16 |<---------------| 28 Write Protect Read Data 17 |<---------------| 30 Read Data Head Select 18 |--------------->| 32 Head Select unused 19 |----------------| 34 unused -----------------------' `----------------------- Bottom Row Sockets 20 - 37 of the DB37S Connector are Ground Now, here is what Chris gave me earlier for the Type 9331 Model 011: External Signal Cable Connector Table 7-1. Pin Assignments for 37 Pin D Shell Cable Signal Name Signal Pin Ground Pin Reduced Write Current 2 20 Drive Select 0 8 26 Motor On (Head Load) 10 29 Direction Select 11 29 Step 12 30 Write Data 13 31 Write Gate 14 32 Side one Select 18 36 Ready 9 27 Index 6 24 Track 00 25 33 Write Project 26 34 Read Data 27 35 Diskette Change 19 37 Two Sided 7 25 8-Inch Drive Attached 5 23 5.25-Inch Drive Attached They look pretty compatible... Now, the next step would be OS support. I think I know how to make it work for an older DOS machine, but what about Windows? Anyone else done this yet? Regards, -doug q

23 years, 11 months

Ancient 6502 FOCAL source code

by jasonz＠issproinc.com

Hi .. I happen to have this Ancient 6502 Focal source code in Lisa format for the Apple II computer Jason Zinserling

23 years, 11 months

NABU! and VT180

by kenziem＠sympatico.ca

After hearing about them for quite a while I found them. I picked up a few NABU computers and the adapters still in the box. Also a VT180 with disks and manuals. I though last weekend was good when I grabbed a Sparcstation SLC, ELC, and a PSC-586VGA SBC for a buck each.

23 years, 11 months

Power Cords (Was: RE: Micro$oft Biz'droid Lusers (was: OT email response format)")

by dquebbeman＠acm.org

> On Fri, 26 Apr 2002, David Woyciesjes wrote: > > > Did someone say power cords??? I got a box of about 4 dozen if you need any. > > Heh. I can get you about 4 dozen boxes of 'em.... I have finally figured out what the dealieo is with this... I've got so many it's as if two or three came with every device. But I was the one who unpacked almost everything at the office for the last 6 years. So what's happening is that they are reproducing. I think you're safe with just two in a box, they're not bunnies, but when you put three or more together, they gain some kind of sexual critical mass and start reproducing. Everything that's been given away had a power cord, and almost nothing has been thrown away. So this has got to be the answer... ;)

23 years, 11 months

Mac SE PC Drive Card

by mythtech＠mac.com

>> I picked up another Mac SE today, and it's got a "Macintosh SE PC Drive >> Card" installed in it, with a big connector on the back of the SE. What is >> the card for? > >'A big connector'??? What is it really? How many pins, how arranged. Is >it, for example, a DC37 socket? I was going to say I thought it was a 27 pin from memory, but a 37 pin D shell sounds about right. Apple bundled the card with a drive, but that drive might just be a regular drive in an apple case. How would I be able to determine that? (I don't mind opening mine to check if it means the other guy can benifit from the info and assemble a drive to use with their card) -chris <http://www.mythtech.net>

23 years, 11 months

adflip.com

by vcf＠siconic.com

I wonder if this adflip.com site (the one that has the classic magazine advertisements) isn't setup by one of those guys that sells old magazine ad pages on eBay. It would make sense. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 11 months

Free DEC stuff, Washington DC

by dquebbeman＠acm.org

> Dave Woodman wrote: > > > > lee courtney wrote: > > > > > Damn, wrong coast! > > > > > > > Bugger, wrong continent! > > Dam! Wrong planet! Damn! Wrong incarnation!

23 years, 11 months

OT: Prankster selling?

by quapla＠xs4all.nl

Would this guy be a prankster or ..... http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2022001381 Ed -- The Wanderer | Politici zijn gore oplichters. quapla(a)xs4all.nl | Europarlementariers: zakkenvullers http://www.xs4all.nl/~quapla | en neuspeuteraars. Unix Lives! M$ Windows is rommel! | Kilometerheffing : De overheid '97 TL1000S | weet waar je bent geweest!

23 years, 11 months

PC CD-ROM drives

by acme_ent＠bellsouth.net

Richard Erlacher wrote: > While the logical replacement has never been a problem, the rounded front that > fits the case is a virtually impossible thing to replace by the time the drive > needs replacment. They seem to require a rounded drawer front with no bezel > of the drive. Whereas the bezel can be removed easily enough, finding a drive > with that rounded front that fits, precisely, the slot in the plastic > front-face of the box is a problem. The part number is seemingly never > available more than 90 days after the computer is no longer an off-the-shelf > item. I've seen very few HPs with this setup, but the Acer Aspire is famous for it. Fortunately the Aspire has a couple of "normal" 5.25" bays so I just leave the old drive in place and add a new one in an empty bay, or if I'm lucky I have a drive yanked from a dead Aspire. > > No ATAPI CDROM has ever been a problem to replace under Windows 9X, to my > experience. Unless Win9X is hosed. Yesterday I worked on a Gateway P-III running Win 98, which wouldn't boot, but hung on the splash screen. Yanked the IDE cable off of the CD-ROM drive and the system booted and all devices worked perfectly. Tested the drive in another box; the drive was fine. Put another drive in the Gateway -- no boot. Took CONFIG.SYS, AUTOEXEC.BAT, WIN.INI and SYSTEM.INI out of the picture. No boot. Moved the drive from master to slave. No boot. Replaced the IDE ribbon. No boot. Put the drive on the same ribbon as the hdd, hdd as master, CD-ROM drive as slave. No boot. Uninstalled and reinstalled the motherboard drivers. No boot. Pulled the hdd, put in a new one, loaded Win98, and the system booted and the CD-ROM drive worked. Put the original hdd back in -- no boot. Reset the BIOS to default settings and made sure both IDE ports were turned on. No boot. Verified that both ports were visible to Windows -- no boot. Turned DMA off in Windows -- no boot. Ran a virus check and didn't find anything. Did I miss anything? (serious question). Finally I wiped and reloaded the hdd and all was well. I've seen this five or six times in ten years. It's something deep down in the Windows goo . . . Apologies -- seriously OT. Glen 0/0

23 years, 11 months

Televideo Systems

by dquebbeman＠acm.org

> > We had 25 of the TS-803 at RETS, and I've been haggling > > for the only one I know is left from the guy who has it, > > so far, to no avail. I have manuals and lots of software > > for it, including TELE-WRITE and TELE-DRAW. We had a > > MouseSystems optical mouse on ours that worked with TELE-DRAW. > > Cool. I'm pretty sure the TS-806 and TS/TVI-800's were text-only, but if > the text-mode software still is compatible, that'd be awesome. Well, when you were running CP/M, these were text-only too. But they had 640 x 240 graphics, with primitives in ROM that sped things up quite a bit. DRI's GSX-80 came with the systems to provide a standard layer for the graphics support. Then DRI's CBASIC had language extensions for drawing lines and such. But the overhead was high, translating from a real-number world coordinate system to an integer normalized coordinate system and then to the integer physical device coordinate system. I bypassed all that using some assembly language interfaces I wrote and went straight to ROM. The application we'd written in CBASIC using its "native" graphics statements took 6 minutes to finish drawing the screen (an image of a prototyping board). The re-written version drew the same inage in six seconds on a 4MHz Z-80. -dq

23 years, 11 months

Z-100 parts

by acme_ent＠bellsouth.net

Does anyone have any spare Zenith Z-100 expansion cards? I'd particularly like to get some more RAM, the USR internal modem, and an RTC board. Cash or possible trade. Thanks, Glen 0/0

23 years, 11 months

Open firmware/Power Mac 7200/75

by csmith＠amdocs.com

Ok guys, so there was a problem in the terminal settings. (Hey, it's an IBM 3151(?) terminal, and mostly configures in Swahili) Open firmware does, indeed, work on this system. Don't ask why it didn't work earlier with the Wyse (which was set up properly, I'm sure, since it's in use on the machine which I used to finally get the IBM configured properly ;). Anyway, it will now boot into Open Firmware, even without keyboard, monitor, etc, attached. I'll attempt to install Darwin on the disk sometime soon. It may work, but at the moment, it has less RAM and less disk than they say is "required." Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 11 months

SunOS4 and Sun i386

by tarsi＠binhost.com

I have a friend who has a Sun i386 running SunOS 4 and is looking for documents/webpages related to either of them. Especially for SunOS 4 manuals. Anyone got any or can point me to information? Thanks! Tarsi 210

23 years, 11 months

Tape dumping programs for Unix/Linux...

by cdl＠proxima.ucsd.edu

> Date: Thu, 2 May 2002 21:23:26 -0500 (CDT) > From: Doc <doc(a)mdrconsult.com> > To: ClassicCmp List <classiccmp(a)classiccmp.org> > Subject: RE: Tape dumping programs for Unix/Linux... > In-Reply-To: <000501c1f245$6a304ca0$1aefffcc@Shadow> > > On Thu, 2 May 2002, Douglas H. Quebbeman wrote: > > > I just did a 'dd' of a bad QIC-80 tape; it read the entire tape > > as a single file, and didn't bail out. > > > > I've not done that with magtape, but ISTR someone else here > > saying that 'dd' does raw reads, bad blocks and all... > > > > My bad if not true. > > No bad, just an honest difference in perspective. I recently went > through this with a set of VMS-based diagnostics tapes. AFAIK, the > tapes are undamaged, but dd returns a valid read - of the first file on > the tape - and stops. I'm not that familiar with non-"streaming" > formats, so I just accept what is without knowing why.... > dd on a disk or raw filesystem ignores files. On a tape archive, even > using the raw device as the if, dd reads files and stops at the end of > the first record. I think you have your terminology mixed here. dd reads records and stops at the end of the first file. carl

23 years, 11 months

WTB: Ethernet Hub/Switch

by dquebbeman＠acm.org

> > You wrote... > > > I ran out of ports a few weeks ago so i am looking to buy a 4-5 port > > > 10mbit or so ethernet hub or switch. Contact me off-list. > > > > 10mbit OR SO? Let's see, I think I have a few 7mbit units, and maybe a few > > 14mbit ones. Wait - I know - I have a 18mbit unit and a 8mbit model - so if > > you daisychain them... voila - 10mbit. > > "Well, our [hub] goes to 11 [Mbit]." Yeah, but the synch has a tendancy to spontaneously combust... ;)

23 years, 11 months

Need IDT 7M624 Info

by Innfogra＠aol.com

I think we have it solved. I believe it could be a 1 Meg SRAM. Thanks for the info about IDT. The 16 pieces soldered on the top and bottom seem to have a solder pad pattern of 5 on the ends and 9 on the sides. Would this jibe with the 64KX8 configuration? Sorry for the "glamour" look to the pictures, it was accidental. I use my Sony 730 HI-8 videocamera hardwired to a framegrabber in the computer. I have two adjustable clamp on lights, one incandescent with a magnifier and one with a round fluorescent that I normally use for photography. The round light gives fairly even lighting but it was busy so I used the Incandescent. I was really surprised at the difference. Not only was it much warmer but the contrast was way up. These are the only pictures I have shot with that light. There is only one label on top of one of SRAMs. No other labels except IDT 7M624 plated in gold on top of the ceramic. You should be able to see both in the pictures. Thanks for the help. Paxton Astoria, OR

23 years, 11 months

Tape dumping programs for Unix/Linux...

by dquebbeman＠acm.org

> > > The emulator community is vigorously using a tape image container > > > format known as TAP for precisely this purpose. > > > > > > Each record from tape is written to file prefixed *and* suffixed > > > by a four-byte record length in little-endian format. A zero- > > > length record is represented by a 4-byte value of zero; although > > > intuition might call for 8-bytes (a prefix & suffix with nothing > > > in between), this is not the case. The convention appears to come > > > directly from FORTRAN 77's handling of unformatted sequential files. > > > > > > And EOF is represented by two consecutive zero-length records. > > > > Darn...sounds like a subset of what I use. I'd be interested > > in knowing more about TAP (with an eye towards adopting use of it), > > and would suggest some possibly missing features might be: > > Is there any more information on "TAP" other than the program that I > find with Bob Supnik's simh stuff, namely "mtdump" that produces > a "TAP" image given a list of files? It would be nice if someone else > had already written the program that reads a real physical magtape and > produces a "TAP" image. Not really any more information that I know if other than what you've seen here- it's a minimalist convention. But I can recommend Eric Smith's tapecopy program as far as other code to look at. It accompanies tapedump & t10backup in his package. You should be able to find his package here: http://www.36bit.org/dec/software/unix-util/ hth, -dq

23 years, 11 months

Anyone need 2112 RAMs?

by arlen.michaels＠sympatico.ca

I was surprised to find a local supplier clearing old stock of 2112 RAMs. This is an NMOS static RAM 256bit x 4. The chips are new, labelled SY2112-A (Synertek I think) and they're supposedly 350 nS devices. I believe this was the chip used in late-model Commodore PETs (after they designed out the earlier 6550 chips); maybe someone wants to confirm this for the list. I seem to recall the Heathkit micro trainer used a couple too, but I could be mis-remembering. Not as commonly needed as the 2102 or 2114 I know, but if anybody wants some I could pick them up. They're 5 for a buck, plus whatever it costs to mail them-- unless of course you want to offer me something extra for my trouble :) -- Arlen Michaels arlen.michaels(a)sympatico.ca

23 years, 11 months

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