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

by rampaginggreenhulk＠yahoo.com

------------------------------ On Wed, Feb 13, 2013 8:56 PM PST Fred Cisin wrote: >I remember a thread on this list about the best patterns to stack them >when you have a few hundred that you can't get rid of You're giving me ideas. Perhaps when I'm settled somewhere I'll build a giant man sized 128k Mac. Then get inside the tube and have everyone believe I got shrunken. But if I want to go real I could always put to use the 19" paper white crts a lister sent me. Like a Mac on steroids. I still love my Macs (and Lisa). Only got a Plus and an SE but I ain't complaining.

13 years, 4 months

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Grid 2260

by rampaginggreenhulk＠yahoo.com

It's from his future ding ding. He commissioned evil cyborgs (like when aren't they) to steal it from a museum. Believe it or not it's worth like 12,000,000,000$ then whenever the heck then is. But then again maybe it may only be like a year from now considering what Obama bucks will likely be worth. In any event grab it. Money is no object here. ------------------------------ On Wed, Feb 13, 2013 8:52 PM PST Sam O'nella wrote: >Depends where you're located and what you're hoping to get for it. :-) do you collect anything or is this just from your past? > >-----Original Message----- >From: Adam Michael Rubin <adamrubin at gmail.com> >Sender: cctalk-bounces at classiccmp.orgDate: Tue, 12 Feb 2013 16:57:43 >To: cctalk at classiccmp.org<cctalk at classiccmp.org> >Reply-To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> >Subject: Grid 2260 > > Hey there, I have an old GRID 2260 laptop. It's a beauty. It works, loads >Windows 3.1.1 for pen computing, but the pen is broken, sadly. > > I would like to sell this computer. Any leads? > >Adamrubin at gmail.com >

13 years, 4 months

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Macintosh 128K in Portland, Cheap

by rampaginggreenhulk＠yahoo.com

Do 128k Macs go for big bucks? Guess I've been out of the loop.

13 years, 4 months

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Grid 2260

by adamrubin＠gmail.com

Hey there, I have an old GRID 2260 laptop. It's a beauty. It works, loads Windows 3.1.1 for pen computing, but the pen is broken, sadly. I would like to sell this computer. Any leads? Adamrubin at gmail.com

13 years, 4 months

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3B2 floppies

by rampaginggreenhulk＠yahoo.com

and Scott more often then not DD media will format fine as "quads". They may not last as long as 96tpi media, depending on the quality. I'm going to guess a 720k or 1.44meg drive won't work but it's not impossible.

13 years, 4 months

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reasons to keep a Turbo XT clone.

by rampaginggreenhulk＠yahoo.com

>[Thank yuou for bottom posting. It shows a willingness and ability to >think and adapt to the ettiquettes of others] For the 9 years or whatever I've been on the list I've top posted probably 90+ percent of the time. Because it makes more sense. And I trim more then most people. So I don't understand why you see this as a blessed event. Don't know how I earned a reputation. >The stock 5160 supports 4 floppy drives. (two internal, two on DC37) >The stock 5170 supports 2 floppy drives. But you need a different controller on 5150/5160 to drive an 8" drive, except maybe a ss drive?

13 years, 4 months

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NEC D765D

by doc＠vaxen.net

Is a ceramic NEC D765D worth anything? It's soldered on an adapter board for a bus I don't recognize. Other parts on the board have 1977 date codes. I pulled it out of a recycle bin, so I have no clue what it belongs to. I assume it's a floppy controller, seeing as it has two 34-pin headers... Doc

13 years, 4 months

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NEC D765D

by rampaginggreenhulk＠yahoo.com

I'll give you a dollar for it. seriously

13 years, 4 months

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3B2 floppies

by rampaginggreenhulk＠yahoo.com

------------------------------ On Wed, Feb 13, 2013 3:54 PM PST Fred Cisin wrote: >On Wed, 13 Feb 2013, Chris Tofu wrote: >> and Scott more often then not DD media will format fine as "quads". They >> may not last as long as 96tpi media, depending on the quality. >correct! >It is exactly the same issues as using SS media for DS. >It's there; it's the same; but it has not been tested for that use. > >> I'm going to guess a 720k or 1.44meg drive won't work but it's not >> impossible. > >720K BETTER work. >720K 3.5" was developed EXPLICITLY to serve as a replacement for 720K >5.25" It is INTENDED to work. Although there is an assumption that you >are competent to set the drive select and other jumpers for installation. This is assuming all 720k 5 1/4" drives are interchangeable. There are relatively few of those out there, but being there are any number of 360k drives that are not interchangeable, I have my doubts. It may be that controllers are finicky but that's the whole point really.

13 years, 4 months

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reasons to keep a Turbo XT clone.

by saquinn624＠aol.com

About a year ago I got a Turbo XT clone (8-ish MHz V20, I think, full memory). It needs a bit of work (HDD, looks like a cap blew on the floppy, monitor needs a new CEE receptacle wired in), but it seems to power up fine. I've been shoveling it around for the past year-plus, and this is the first time I've even turned it on, which gets me wondering whether it's worth keeping or not, especially when virtualized PCs are so easy to do. I have a 386 and Pentium with ISA slots, so that's not a big deal. For those with old clones, what do you use them for, or is it just mostly nostalgia?

13 years, 4 months

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OT: adorable and cute Android tricks

by rampaginggreenhulk＠yahoo.com

Shouldn't they all be sent to Gehenna? How do you expect to maximize battery life with all these wonderful sweet theatrics? I do love my new phone and tablet. But I'm thinking of taking a chop saw to both to extract all the gizmos. Any A* coders? I figure the Wrox book is my best bet. There's a much older one that deals specifically with A* architecture, and looks very good for generic knowledge (has a Pict or something on the cover), but is very old.

13 years, 4 months

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Long Live the Quad was Re: NO QUAD (Was: 3B2 floppies

by rampaginggreenhulk＠yahoo.com

See, the faithful are already gathering to pay homage to the Quad. God save the Quad! Sergio, I'd help in any way I can, but basically I've already said everything I know. But if you need a few specifics about setting up an imaging box, I might be able to help a bit with that. Mainly you need a cable with a twist behind the end connector, use a hd 3.5" drive at the end as A:, a 5 1/4" drive as B:, setup your bios accordingly and you should be good to go. That's the setup that's proved successful for me. >I shall ask you about this matter, Chris. I need to grab some disks for one >Altos 586 and one ATT 3b1. > >Sergio.

13 years, 4 months

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Computing - then & now

by rampaginggreenhulk＠yahoo.com

------------------------------ On Mon, Feb 11, 2013 2:45 PM PST Murray McCullough wrote: >Back in the early years of mass-computerism you had to be a >hobbyist/experimenter with good soldering skills to make computers do >what you wanted them to do. Today they do it without your input and/or >knowledge. Is that not scary? Were there prognosticators who predicted >what would be now, 35-40 yrs. on? Vintage/classic computing were the >safer years, maybe not as exciting! Maybe part of the answer is not to >be connected but we would lose out on participating in this forum and >so much more. > >Murray-- Stick with open source, basic builds.

13 years, 4 months

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reasons to keep a Turbo XT clone.

by rampaginggreenhulk＠yahoo.com

------------------------------ On Wed, Feb 13, 2013 12:27 PM PST Pete Plank wrote: >It has a controller that supports the SD formats I needed, but I don't recall the specifics. The machine is currently in storage but I do plan on setting it up again soon. > >Pete Please keep us posted. Details like that are invaluable.

13 years, 4 months

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NEC D765D

by rampaginggreenhulk＠yahoo.com

the masks were also leased to Rockwell who's house number was 6765

13 years, 4 months

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NEC D765D

by rampaginggreenhulk＠yahoo.com

ironically I just shipped an NEC 8001a disk drive cabinet to Austria. it also had a ceramic 765 and the most unique door mechanisms I've seen with manual lock buttons. I didn't dismantle to the point that I could say for sure who the manufacturer of the drives were but the visible vertical shaft motors said Teac 18261 on it. Anyone know any more about them than I do or have tech manuals? Oh I got 15$ after shipping but before fees. It cost 100.15$ to ship. My net gain after everything is considered is likely zero or negative. How I love ebay.

13 years, 4 months

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Computing - then & now

by c.murray.mccullough＠gmail.com

Back in the early years of mass-computerism you had to be a hobbyist/experimenter with good soldering skills to make computers do what you wanted them to do. Today they do it without your input and/or knowledge. Is that not scary? Were there prognosticators who predicted what would be now, 35-40 yrs. on? Vintage/classic computing were the safer years, maybe not as exciting! Maybe part of the answer is not to be connected but we would lose out on participating in this forum and so much more. Murray--

13 years, 4 months

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reasons to keep a Turbo XT clone.

by rampaginggreenhulk＠yahoo.com

------------------------------ On Wed, Feb 13, 2013 9:40 AM PST Scott Quinn wrote: >About a year ago I got a Turbo XT clone (8-ish MHz V20, I think, full memory). It needs a bit of work (HDD, looks like a cap blew on the floppy, monitor needs a new CEE receptacle wired in), but it seems to power up fine. > >I've been shoveling it around for the past year-plus, and this is the first time I've even turned it on, which gets me wondering whether it's worth keeping or not, especially when virtualized PCs are so easy to do. I have a 386 and Pentium with ISA slots, so that's not a big deal. For those with old clones, what do you use them for, or is it just mostly nostalgia? Could you give more specifics. Date codes, possibly manufacturer? I'm not going to delude myself thinking it could be a rare clone I've been searching for, and that's not even my purpose for asking. Just curious how old it is. In my stash for instance I have a rebadged AMT ATjr (they kept it in the rom screen, but IBM forced them to change the name to AMTjr). Yes it's mostly about sentiment I'm sure. Chances are there's some kid or whoever who'd be happy to have it. Or a community college. I doubt there are still any 16 bit assembler courses being taught anywhere on planet earth, but it wasn't too long ago there was. But then again perhaps the skills are still necessary to keep those quasi mythical ten billion 80186 embedded apps running.

13 years, 4 months

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Cassette drive for HP 98xx calculator (eBay, currently cheap)

by hp-fix＠xs4all.nl

Yes, it is for use with 98x0 -----Oorspronkelijk bericht----- Van: "William Maddox" <wmaddox at pacbell.net> Verzonden: ?13-?2-?2013 09:28 Aan: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Onderwerp: Cassette drive for HP 98xx calculator (eBay, currently cheap) I think this was used with the 9800-series calculators. http://www.ebay.com/itm/s/181076085394 --Bill

13 years, 4 months

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Cassette drive for HP 98xx calculator (eBay, currently cheap)

by wmaddox＠pacbell.net

I think this was used with the 9800-series calculators. http://www.ebay.com/itm/s/181076085394 --Bill

13 years, 4 months

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Computing - then & now

by tom_a_sparks＠yahoo.com.au

----- Original Message ----- > A big part of the reason IMO for the excitement in the earlier years of > computing technology was that models were varying and unique, whereas today > they are uniform and ubiquitous. There's not much today that differentiates > computers from the desktop machine on up to super computers except for the > scale. "Back then" computers used a variety of different processors > and had > different models had strong points to them, storage technology was > different, etc. > > Not to say that modern day computing technology isn't impressive. But we > have since at least the last decade or two entered an era of incremental > changes rather than radical ones. > -- Geoffrey Oltmans I feel the guis have also stagnated as there is none-thing radical different between windows, Mac and linux excepted underlying operating system the only system that really worth looking at are the homebrew/clones/single-board-computers system --- tom_a_sparks "It's a nerdy thing I like to do" Child of the Internet born 1983 Please use ISO approved file formats excluding Office Open XML - http://www.gnu.org/philosophy/no-word-attachments.html Ubuntu wiki page https://wiki.ubuntu.com/tomsparks

13 years, 4 months

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Tech:Then & Now

by c.murray.mccullough＠gmail.com

This is further to my note on Technology: Then & Now: As F. Chisholm says it?s the ?kitschy lowbrow tastes of the public? in contrast to the sophisticated highbrow tastes of the uber?rich as to who really influences technology development today. It seems the uber-rich are winning. But do we need to be at their mercy or can we ?rebel? through programming (the rise of the Raspberry Pi for instance) or is this just for people in the know as it once was for the hobbyist/experimenter of yesteryear. In our hurried lives, to stay above water, we want the ?simplified? way of using computer technology ? to do what we want, when we want. Whether one is a software or hardware person seems to me to be irrelevant except if you are knowledgeable about technology, i.e., know how it works. I used to know how my Coleco ADAM worked but I don?t know how my Dell Inspiron 15R works. Nor do I really are. It does what I want it to do. Well, most of the time! Is this not what all of us want? Murray--

13 years, 4 months

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Xxdp device drivers

by roe＠liveblockauctions.com

Does anyone have macro-11 source code for _any_ xxdp 2.5 device driver? Dl.sys, anything at all. I want to create a new driver...

13 years, 4 months

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CompacTape/DLT Media

by tshoppa＠wmata.com

> I'm trying to restore a Data General MV/2500 (c.1989) which contains what DG referred to as a '130MB CTD'. It's actually a Fujistu M2451A. > My question is: what is the latest generation of DLTs that I can use in the drive? Will DLTtape III cartridges work or do I have to try to find CompacTape IIs from somewhere? I know that TK50's and TK70's cannot use DLTtape III cartridges. Coercivity of the magnetic media is wrong. Some of the mid-generation DLT drives can read TK50 and TK70 CompacTapes but cannot write them. I don't have any actual experience with the M2451A. I am guessing that it is something like a DEC TZ30. For all I know, maybe Fujitsu made the TZ30! It "smells" different than the DEC and Quantum drives and I've often wondered about that. That's a tough nut, restoring a system to use a tape drive for which you have no media. If you had old media to read, then it would be far easier to justify some effort. Is the M2451A a SCSI drive? Just hoping out loud that it is, and that the DG OS doesn't care about drive maker, in which case you could use a far more available cartridge drive and carts instead. Tim.

13 years, 4 months

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Depraz/Digimouse/P4 mouse

by BHuntsman＠mail2.cu-portland.edu

Anyone on here have one of these? Anyone manage to get one working on a standard serial port, or have the pinout? Thanks! -Ben

13 years, 4 months

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Itch before scratching tape

by jonas＠otter.se

On Sun, 10 Feb 2013 18:56:15 -0800, Chuck Guzis <cclist at sydex.com> wrote: > I discovered two reels of tape--I assume that they're just different > versions FORT045 and FORT046, as they have different dates (86 and 87) > printed on them. > > Glenn has the ZIP of the TAP files. I can send copies to whoever wants > them. > > Do let me know if either amounts to a hill of beans. > > --Chuck > Wouldn't that be VMS installation tapes for FORTRAN v. 4.5 and v.4.6? It sounds like what they would be labelled. /Jonas

13 years, 4 months

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DDS/DLT compatibility levels [was RE: CompacTape/DLT Media]

by RichA＠vulcan.com

From: Paxton Hoag Sent: Monday, February 11, 2013 6:29 PM > If it is a DDS you can find auxillary drives that should read DDS DAT > tapes. Like DLT there are 1 through 4 versions (i.e. DDS or DDS1, > DDS2, etc.), usually backward compatible. >From personal experience: A DDS2 drive will read and write DDS1 or DDS2 tapes. A DDS3 drive will read and write DDS2 or DDS3 tapes, and read DDS1. A DDS4 drive will read and write DDS4 tapes, might read and write DDS3 tapes correctly, and might read DDS2 (maybe). Rich Alderson Vintage Computing Sr. Systems Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org http://www.LivingComputerMuseum.org/

13 years, 4 months

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Vintage era

by c.murray.mccullough＠gmail.com

I was reading ?The Fire in the Valley? ? the story of how the computer became a mass-consumer product - and the wrestling of control by experimenters & hobbyists of computing technology from elites - the computer cognoscenti. This beginning age(1970s-80s) saw the rise of the technocrat, the nerd, the geek who revolutionized technology but who today are the computing elite and control our technocratic society for good or ill. Vintage computers, the beginning era, has been subsumed by a technology so rapidly advancing it threatens to overwhelm us yet I still look back with fondness and I hope we can revive some of that era?s experimentation if only to validate a true hacker ethic. Murray--

13 years, 4 months

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FS: Macs ready to find homes

by slandon110＠gmail.com

I got the following PowerMacs ready to go A PowerMac 8500 with 48MB RAM and a 1GB HDD- Running Rhapsody Dev Release 2 with throw in more ram $75 shipped a PowerMac 9500 with 160MB RAM 1GB HDD running MacOS 7.6 $125 shipped a Quadra 650 with 16MB RAM and a 1GB HDD running MacOS 7.6- Will throw in some 32MB SIMMS $50 shipped 50 PIN SCSI Hard Drives, Any Size $15 dollars shipped each, Let me know what size you need Keep watching the list as I go through and prep more machines for sale.

13 years, 4 months

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FW: [N8VEM-S2I:96] Version 0.3 S2I Firmware Update

by LYNCHAJ＠YAHOO.COM

Hi Update on the SCSI to IDE/SD project S2I. A lot of recent progress. Still looking for testers. Thanks! Andrew Lynch Hi Folks, I have just uploaded developmental firmware version 0.3. Here is what I remember of the changes made: * Support for either IDE or SD Card interface * Support for Pseudo-DMA (you MUST mod your prototype card for this to work) * Support for on-chip target device selection * Substantially improved handling of status codes and sense bytes * Substantial refactoring of protocol phases -- much cleaner and more modular Still looking for testers!!! -Wayne -- You received this message because you are subscribed to the Google Groups "N8VEM-S2I" group. To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s2i+unsubscribe at googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.

13 years, 4 months

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CompacTape/DLT Media

by merrony＠gmail.com

I'm trying to restore a Data General MV/2500 (c.1989) which contains what DG referred to as a '130MB CTD'. It's actually a Fujistu M2451A. My question is: what is the latest generation of DLTs that I can use in the drive? Will DLTtape III cartridges work or do I have to try to find CompacTape IIs from somewhere? Thanks, Steve Restoration website: http://stephen.homedns.org/dg/

13 years, 4 months

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T-series machines, was Re: OpenSXCE, was Re: Vintage era

by barythrin＠gmail.com

I think it depends which country you're in. I believe the quad core galaxy phone and tablet became dual core state side for some reason.

13 years, 4 months

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Itch before scratching tape

by cclist＠sydex.com

I discovered two reels of tape--I assume that they're just different versions FORT045 and FORT046, as they have different dates (86 and 87) printed on them. Glenn has the ZIP of the TAP files. I can send copies to whoever wants them. Do let me know if either amounts to a hill of beans. --Chuck

13 years, 4 months

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Using two RL02 drives on OS/8?

by charlesmorris800＠centurytel.net

The connections from the drive select outputs on the RL8A checked perfectly to the line receiver inputs on the RL logic board. While I appreciate Rick's taking the time to make me a selectable version of the RL02 oscillating seek.... he included a bug at no charge too ;) Specifically, the constant at 0230 (0100) selects the appropriate drive and resets it all right (0101 in AC). But - later on down the program, the SEEK (03) command is issued with another RLCB... however, the AC is forced to 0003 by the microprogrammed 7325. (As is probably apparent by now, the AC must have 0103 in it to select Drive 1). I edited the program to use a TAD 0231 and put the constant at 0231. So instead of the CLA CLL CML IAC RAL (load AC with 03 the hard way, an old-time DEC programmer's way to save one word when memory was a precious commodity) :) the AC now loads with 0103 and lo and behold, Drive 1 seeks merrily away! Restore the two constants to Drive 0 and THAT drive seeks. OK. However, all was not lost... during the couple of hours of chasing my tail wondering where the LSB of the drive select was going, I found that I had inserted the header into the RL logic board crookedly and bent two pins, one in the wrong hole and one shoved aside! :( Not only that, the line driver chip which provides the drive select signals had come from the factory with NO solder at all on its Vcc pin 16! =:^O Fixed that too. I think the OS/8 packs have been wiped out by now... various FAULT lights coming on, especially on the 2nd drive in the chain... going to build another system pack with VTserver which takes a good half-hour or more at 19200 baud. Hope the servo tracks are ok, otherwise I'll need to buy a couple of good packs! -Charles

13 years, 4 months

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11/35 questions

by jack.rubin＠ameritech.net

I'm just getting to know my "new" 11/35 and have some questions about the current configuration. 1) Was the M981 (unibus jumper/terminator) unique to the 11/35(40)? It's not in the field guide but is mentioned in the Unibus Troubleshooting Manual. I'm assuming it provides near-end termination for the bus but it's curious that the termination portion is on the far side fo the jumper. The only other examples of the M981 that I've seen are in other 11/35 systems. 2) The system has 32KW of core - 8K in the chassis in an MM-11S system unit and 24K in a separate CMI Expandacore box. The MM-11L unit is a little strange in that it is composed of the expected G110 control module and G231 drive module but the core stack is an H215 (parity) rather than H214 (non-parity) unit. Does this matter? If it does, how would it affect operation? 3) This is a "vanilla" system with none of the available CPU options. It does, however, have an M7840 EAE board (KE11-B) which supports hardware multiply and divide. Does this make sense? 4) The system is in a BA11-DB(?) case - 10 1/2" high with H750 power supply on the right side (from the front of the chassis). As received, there are no covers for top, bottom or power supply. Anyone have any spares, or if not, pictures and/or measurements of the original parts? Shouldn't be too hard to fabricate but it would be nice to be as original as possible. OK - that's all for now! Thanks, Jack

13 years, 4 months

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Itch before scratching tape

by cclist＠sydex.com

I was cleaning the head on one of my 9-track drives and used a tape that I've had around for while to check my work. It's labeled VAX-11 FORTRAN FORT046.A and seems to be backup tape for VAX FORTRAN 4.0. Total length is only about 750KB. Anyone interested in the contents before I scratch the tape? --Chuck

13 years, 4 months

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SelectaDock I

by BHuntsman＠mail2.cu-portland.edu

Hi! I know they're not quite classic as some of the other systems discussed on this list, but anyone have a SelectaDock I in decent condition they'd like to part with? Thanks in advance! -Ben

13 years, 4 months

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PDP-11/20 and KE11 (was Re: 11/35 questions)

by ethan.dicks＠gmail.com

On Fri, Feb 8, 2013 at 1:41 PM, Dave McGuire <mcguire at neurotica.com> wrote: > Ahh, if the KE11-B will run in an 11/20, then I'll be hanging onto one > of them, as I'm working on getting an 11/20. It will work in pretty much everything, AFAIK, since it's a peripheral not a "CPU extension". The KE11-A is functionally identical but built on the backplane peripheral model of the 11/20 and rare enough that I never figured on running across one I could get. I know that there's an occasional KE11-B running around since it's a single card. > I'd love to see v1 UNIX running on real iron. Me too. It's no big shake to run it on a real PDP-11 - as long as you have a KE11 of some kind in there _and_ you have matching peripherals for the 1972-era code. I haven't tried it, but I would be surprised to learn that you couldn't get v1 UNIX working on an 11/04 (peripheral issues aside). What I really want to do (and it sounds like you do too) is to run v1 UNIX not just on real iron, but the on the closest approximate I can manage of what was used in 1972. Step one is to get the 11/20 doing *anything*. Step two is to get the 11/20 running with RK05s. Then I can start to consider how I would either provide a register-compatible swap device or how much coding changes I'd have to tackle to get v1 code to use some _other_ swap device. Once I have a plan for how to provide swap, _then_ it's worth looking in all seriousness for a KE-11. Many steps to go before I have anything to purchase. Lots to fix and play with. -ethan

13 years, 4 months

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2
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Using two RL02 drives on OS/8?

by charlesmorris800＠centurytel.net

At 01:27 AM 2/9/2013, Charles wrote: >I tried this program tonight, after making up a new ribbon cable that >had some mechanical damage which I was *hoping* would fix things :P > >A very interesting result - when I hit run, BOTH drives started >seeking and eventually Drive 1 faults. If I unload one of the drives, >the other one seeks when the test program is run. Doesn't matter if >unit 0 or 1 is the active drive! > >Time to start chasing a hardware (drive select) problem I guess... >sigh. Nothing like 30-40 year old hardware... That's what I was worried about. You're lucky that it hasn't scrambled the OS on your drives. :) >-Charles > >ps I think your "assembly listing" has a bug, at 0221 shouldn't that >read JMP 0204? Yup. The original for this (from the RL01/02 pocket service guide) didn't have anything to do a drive select so I added it in. That shifted everything, leading to all the offsets shifting. I missed fixing the comment there, but jmp to 0204 is correct. -Rick I'm pulling my hair out... I disconnected the 2nd drive and now just have one RL02 attached to my RL8A, with a terminator. A bit of background - I could not find a cable that goes from the 40 pin header on the controller card to the first drive, so I made one out of ribbon cable and IDC headers, removing the first external connector and just using headers as it does inside the drive. Now I'm beginning to wonder if the original cable has a "twist" somewhere in the drive selects like the old PC floppy cables, because... Although I can set and reset the two drive select bits on the RL8A, and the 75113 line drivers also change state appropriately, those signals are not reaching the correct place on the logic board inside the RL02! At the 75107 line receivers (E57), those two bits are always logic 00, i.e. drive 0. So the drive won't select at all unless I put the Unit 0 plug in, at which point it effectively ignores the drive select bits and always selects regardless of the state of those two bits at the controller. Confirming that the drive select lines are dead. The only thing between the line drivers and receivers is 6' of ribbon cable. It leaves the RL8A on J1 header pins TT, SS, RR, PP and is supposed to enter the RL02 logic board on J12 header pins C, D, E, F which accounts for the cable being reversed. Just in case I even tried flipping the header connector around and of course the drive won't load or work at all and the Fault light stays on, so I know I have it facing the right way. Unless it's possible to make a cable upside down and backwards, or some such? This setup DID previously run OS/8, ADVENT, FOCAL, whatever was on the pack, but only using one of the RL02's (I don't think I was ever able to access the other drive). I can't think of anything that could "lose" the drive select lines except a defective cable (will continuity-check tomorrow, even though I made a new one by copying the old one that used to work) or else the correct cable (BC80J-20) is not a straight-through pin for pin connection, in which case I have to have one. Just to further confuse things, I have the identical two-drive setup with homemade controller-to-drive cable on my 11/23+ and RLV11 card, and it works perfectly. So now I'm just going in circles... that's enough for tonight!

13 years, 4 months

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networking via SCSI?

by cctech＠beyondthepale.ie

> Not to mention that CI doesn't support a bus > topology, only a star. And a CI network is limited to a 90m radius, > while Ethernet was designed for a maximum station separation of 2.5Km. > So please remind me again just exactly what is so similar between CI and > Ethernet? I thought a CI coupler was mostly a transformer. If so, would a CI network not behave much like a bus, even if it didn't look like one? A lot more like a bus I would have thought than modern ethernet which neither looks nor behaves like a bus. (Not that I'm worried about whether CI is like Ethernet or not...) Regards, Peter Coghlan.

13 years, 4 months

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Last of Don Maslin's collection available

by aek＠bitsavers.org

Another curator and I went to San Diego on Thursday and finished sorting the collection for Deborah. There are several S-100 systems, terminals, a metal case Commodore PET, Tek 4012, and many, many S-100 boards that were out of CHM's collecting scope that are available. We ended up taking about 6 pallets of stuff, most of the documentation and software and a few systems that we didn't already have in the colleciton. If you forward your email adr to me I will forward it on to her. We suggested eBaying them, but there may be too many of them to deal with that way. She probably will be reluctant to ship anything large.

13 years, 4 months

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Surplus HD's

by curt＠atarimuseum.com

Hi, Looking for HD's for a friend of mine who does repair work on vintage systems and his supply of HD's has dried up so I'm working out a trade with him. Looking for: 3.5" SCSI HD's in small sizes (40, 80, 120MB sizes) 2.5" IDE HD's in small sizes (40, 80, 120MB sizes) Looking for around 20 of each type, must be working/tested condition... Would either buy them for $5 ea or work out a trade, email me off-list if you have some or can point me to someone who may have them, thanks. Curt

13 years, 4 months

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Using two RL02 drives on OS/8?

by charlesmorris800＠centurytel.net

At 01:27 AM 2/9/2013, Charles wrote: >I tried this program tonight, after making up a new ribbon cable that >had some mechanical damage which I was *hoping* would fix things :P > >A very interesting result - when I hit run, BOTH drives started >seeking and eventually Drive 1 faults. If I unload one of the drives, >the other one seeks when the test program is run. Doesn't matter if >unit 0 or 1 is the active drive! > >Time to start chasing a hardware (drive select) problem I guess... >sigh. Nothing like 30-40 year old hardware... That's what I was worried about. You're lucky that it hasn't scrambled the OS on your drives. :) >-Charles > >ps I think your "assembly listing" has a bug, at 0221 shouldn't that >read JMP 0204? Yup. The original for this (from the RL01/02 pocket service guide) didn't have anything to do a drive select so I added it in. That shifted everything, leading to all the offsets shifting. I missed fixing the comment there, but jmp to 0204 is correct. -Rick I'm pulling my hair out... I disconnected the 2nd drive and now just have one RL02 attached to my RL8A, with a terminator. A bit of background - I could not find a cable that goes from the 40 pin header on the controller card to the first drive, so I made one out of ribbon cable and IDC headers, removing the first external connector and just using headers as it does inside the drive. Now I'm beginning to wonder if the original cable has a "twist" somewhere in the drive selects like the old PC floppy cables, because... Although I can set and reset the two drive select bits on the RL8A, and the 75113 line drivers also change state appropriately, those signals are not reaching the correct place on the logic board inside the RL02! At the 75107 line receivers (E57), those two bits are always logic 00, i.e. drive 0. So the drive won't select at all unless I put the Unit 0 plug in, at which point it effectively ignores the drive select bits and always selects regardless of the state of those two bits at the controller. Confirming that the drive select lines are dead. The only thing between the line drivers and receivers is 6' of ribbon cable. It leaves the RL8A on J1 header pins TT, SS, RR, PP and is supposed to enter the RL02 logic board on J12 header pins C, D, E, F which accounts for the cable being reversed. Just in case I even tried flipping the header connector around and of course the drive won't load or work at all and the Fault light stays on, so I know I have it facing the right way. Unless it's possible to make a cable upside down and backwards, or some such? This setup DID previously run OS/8, ADVENT, FOCAL, whatever was on the pack, but only using one of the RL02's (I don't think I was ever able to access the other drive). I can't think of anything that could "lose" the drive select lines except a defective cable (will continuity-check tomorrow, even though I made a new one by copying the old one that used to work) or else the correct cable (BC80J-20) is not a straight-through pin for pin connection, in which case I have to have one. Just to further confuse things, I have the identical two-drive setup with homemade controller-to-drive cable on my 11/23+ and RLV11 card, and it works perfectly. So now I'm just going in circles... that's enough for tonight! EDIT: Additional note: When the two-drive system was running OS/8, I had the ribbon cable going to the bottom drive in the rack which had Unit 1 plug, then the proper BC20J cable from there to the top drive with Unit 0 plug. Makes me wonder anew if there is something non- obvious about the connections of the drive select lines within the DEC cables...

13 years, 4 months

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Vintage era

by rampaginggreenhulk＠yahoo.com

Just one last thing before I utterly let this go (I should think I'm entitled after that lying diatribe) - when o God when will he quit with those goofy cartoons! ------------------------------ On Sat, Feb 9, 2013 9:28 AM PST Liam Proven wrote: >On 9 February 2013 16:44, Doc <doc at vaxen.net> wrote: >> On 2/8/13 8:36 PM, Liam Proven wrote: >> >> >> He doesn't believe in her. The world was made in 6 days by a magic >> sky-pixie. He thinks all those nasty fossil things were laid down in >> the great flood and humans haven't evolved, they were made by the same >> invisible big-old-fairy-with-a-white-beard, just as they are today. >> >> You're wasting your time with this chap; he is both stupid and very >> ignorant, a terrible combination. I mean, come on, he's too dim to >> learn how to quote in an email! >> >> >> >> Why, really, do you believe your vitriol is any less offensive than his? > >I don't. > >But see, it's a bit like this cartoon: >http://www.atheistmemebase.com/2012/03/30/quit-persecuting-us/ > >(For the WWW impaired: a single figure says "god probably doesn't >exist". 50 identical figures shout "stop persecuting us!") > >There are many billions of religious people in the world. *All* of >their beliefs are based on superstition and myth; that is the nature >of religion. None of it can be demonstrated; if it could be, it would >not require faith and it would no longer be religion. > >The religious run most countries; their houses of worship line the >streets of every city. You cannot be a Girl Guide or a Boy Scout >without making obeisance to their invisible friends. In many >countries, mine included, you cannot sing the national anthem without >invoking some religion's mythical deity. > >But the minority of us who are free of this kind of mental infection >and who actually base our worldview on facts and reason just >occasionally open our mouths and point out that the claims of the >religious are ridiculous, that when held up to the light of day, they >are self-evident nonsense, *we* are the ones who get attacked for >oppression. > >No. I am not oppressing anyone. > >The christians, muslims, jews and so on oppress billions. Don't accuse >me. If they still had the power they once had, they would torture me >to death. All I do is point out that their belief is a >self-inconsistent travesty. They killed millions in the name of their >illusory magic sky-pixie. People are still killed daily over it. > >This man believes in a series of ridiculous fairy-stories that no >unbrainwashed person would believe. He has personally attacked me on >this mailing-list for not sharing his delusions. He has personally >emailed me to mock my reasoned, evidence-based, factual, materialistic >outlook and to try to infect me with his sick twisted death-cult. His >death-cult which involves images of pain and death as its leitmotif; >adherents of which adorn themselves with little effigied of a dying >man, or with pictures of an instrument of torture. > >It is sick, horrible, and wrong. It distorts minds, destroys lives, >robs people of their freedom to express their sexuality, it denies gay >people the same rights as straights, it denies women reproductive >freedom. Related sects routinely mutilate the genitals of infants. > >They are all abhorrent, disgusting cults and the sooner the world is >rid of them the better. > >And no, I will not shut up about it, and no, I am not ashamed of it, >and if I my stating these blatant and self-evident truths offends >people, well, *good.* I am offended by their superstition and what it >makes them do. It made me think. Perhaps being offended will make them >think, too. > >Being offended never hurt or injured anyone. Being offended is good >for you. It challenges you, makes you question things. > >> I'm not Christian (my faith is neither up for discussion not relevant here >> AT ALL), but your hatred and your condescension toward people of a certain >> faith just reek of the same narrow-mindedness of which you accuse them. > >I hate all faiths, pretty much equally. Some are more evil than >others, such as scientology or the jehovah's witnesses or the >christ-scientists - religions which routinely kill children by denying >them medical treatment. > >But they are all mental infections, viral memes that destroy minds and lives. > >It's just that some come up more often than others. I don't pick 'em >out. They self-select. > >-- >Liam Proven ? Profile: http://lproven.livejournal.com/profile >Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven >MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven >Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 >

13 years, 4 months

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Sunstruck/Wanda T-shirt

by cclist＠sydex.com

THe lack of response on this undoubtedly means that its best place is in the rag bag, I suppose. It's good cotton and will make a fine rag with which to wax my car. Oh well, I tried. Must have been an unmemorable release. --Chuck

13 years, 4 months

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Vintage era

by rampaginggreenhulk＠yahoo.com

------------------------------ On Fri, Feb 8, 2013 11:42 AM PST Bill Sudbrink wrote: >Fred Cisin wrote: >> >> I blame NIXON >> > >I shouldn't really do this but it's too good to pass... > >It's really Taft's fault. Look do your research. The problem can readily be traced back to Henry VIII. But Tutankahmen really REALLY started it all. And thanks for the diversion Bill. I was all geared up to jump on Freddy's response. But of course he's right in that dead presidents are far more to blame then any living ones.

13 years, 4 months

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Using two RL02 drives on OS/8?

by charlesmorris800＠centurytel.net

I tried this program tonight, after making up a new ribbon cable that had some mechanical damage which I was *hoping* would fix things :P A very interesting result - when I hit run, BOTH drives started seeking and eventually Drive 1 faults. If I unload one of the drives, the other one seeks when the test program is run. Doesn't matter if unit 0 or 1 is the active drive! Time to start chasing a hardware (drive select) problem I guess... sigh. Nothing like 30-40 year old hardware... -Charles ps I think your "assembly listing" has a bug, at 0221 shouldn't that read JMP 0204? On Feb 6, 2013, at 5:21 AM, Rick Murphy wrote: > Here's something you can try to verify that your disks are properly > hooked up. It's the oscillating seek toggle-in for the PDP-8 > modified to allow the unit to be selected. You can toggle it in via > ODT and let it fly - it'll seek the drive back and forth. If this > works on drive 1, then you've got an OS/8 driver that isn't sending > out the select properly. > > 0200 7201 CAF (Reset) > 0201 1230 TAD 0230 - Get drive select > 0202 6604 Load command register b - select drive > 0203 1231 Loop: TAD 0231 - get number of cylinders to seek > 0204 4222 JMS 0222 - Wait for ready > 0205 3226 DCA 0226 - Store cylinder number > 0206 1226 ISZ 0226 - Increment it > 0207 6603 Load command register A - seek > 0210 7325 Seek command (0003) > 0211 6604 Load command register B > 0212 4222 JMS 0222 - Wait for ready > 0213 7307 Read header command (0004) > 0214 6604 > 0215 1226 TAD 0226 - Get seek value > 0216 1227 Change direction > 0217 7500 SZA CLA > 0220 5203 JMP 0203 - Back to start > 0221 5204 JMP 0205 - Loop > > 0222 0000 Wait subroutine > 0223 6601 RLSD - skip if done > 0224 5223 JMP .-1 > 0225 5622 JMP I 0221 > > 0226 0000 Temp > 0227 4000 Constant > 0230 0100 Drive one > 0231 0200 Number of cylinders to seek >

13 years, 4 months

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Available S-100 PCBs

by LYNCHAJ＠YAHOO.COM

Hi There are three (3) S-100 Regular Prototyping board PCBs and eight (8) S-100 LAVA PCBs still available aka "Basic S-100 Prototype Board" (scroll down to the second board description). These are going fast so please act soon if you would like one or more. Approximately 90% of the boards have already gone to their builders. http://s100computers.com/Cards%20For%20Sale.htm http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=S-100%20regular %20prototyping%20board S-100 LAVA PCB is for a VGA monitor compatible display. Uses Mylium LAVA-10 chip module (based Spartan-3 FPGA) http://www.mylium.es/pages/en/lava_10.html http://s100computers.com/My%20System%20Pages/Lava-10%20Board/LAVA-10%20Board .htm The S-100 LAVA works fine and does what it was designed to do quite well. However, in my personal opinion the S-100 LAVA capability has been barely even touched since the current software uses the board as a VGA monitor compatible text terminal replacement. I believe it is capable of quite a bit more text and graphics capability with further developed software. The S-100 LAVA is capable of 800x600 @ 16 bit display (65536 colors -- RGB565) with 32MB of SDRAM and 8 MB of Flash it should be easily capable of being an X-Window server and who knows what else. It makes a logical pairing with upcoming S-100 80386 CPU and S-100 68K CPU board PCBs currently in development. These PCBs are $20 each plus $3 shipping in the US and $6 elsewhere. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your boards right away! Thanks and have a nice day! Andrew Lynch

13 years, 4 months

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Lots of goodies for sale

by slandon110＠gmail.com

Got the following for sale DayStar Turbo040 Card with Mac IISI Adapter, works in Mac IIci, SE/30 and IIsi $150 shipped Apple IIGS Monitors $50 shipped each PowerMacs of all sorts $50 each shipped- got at least 50 Tell me what model you want I probably have it 68k Macs of all sorts $50 each shipped- Tell me what model you want and I probably got it G4 Upgrade Card for PowerMac 7300-9600 Makes it a G4 450mhz $35 shipped RAM Lots of 30 pin 4MB SIMMS $20 bucks shipped for a small flat rate box full of it 50 pin SCSI Hard Drives- All sizes from 20MB up to 4GB $20 Each shipped IBM Type 7204 Model 409 9.1GB External SCSI Hard Drive for AS/400 $30 shipped LaCie 9GB External SCSI Hard Drive $30 shipped Sun Optical Mice- $10 each shipped eBay feedback upon request, PayPal only Thanks Steve

13 years, 4 months

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networking via SCSI?

by jeffj＠panix.com

Long ago when SCSI was young and just an 8 bit parallel bus, Ampro littleboards advocated using the SCSI bus for peer to peer communications, not just master/slave. Did anyone else do that? A fellow contacted me with this problem: I have a couple of Kurzweil synthesizers (/samplers/sequencers): K2000RS and K2600X . They have integrated floppy and SCSI HDDs for storing configuration, composition and audio sample data. They're actually 68000 CPUs with a Kurzweil OS, managing IO among peripherals (keys, SCSI, display LCD, MIDI, etc) and several proprietary DSPs. But there's no serial/network/etc IO. I'm interested in trying to use their SCSI to interface them with a (Linux) PC somehow. Any ideas? Like maybe some webpages describing projects that have networked older (preferably 68xxx) CPUs over their shared SCSI bus. My understanding is that a Kurzweil and a Mac were sometimes configured each as a SCSI device on the same SCSI bus as the HDD, and either host could alternate accessing the HDD once the other host was no longer issuing potentially conflicting SCSI commands to the HDD. I don't see how just read commands could conflict, but perhaps the HDD wasn't able to multiplex commands targeting different hosts in any overlap. But evidently people were transferring samples between Kurzweil and Mac this way. [I replied privately about the problem of multiple machines sharing a drive even if one is read-only] any clues or hints? thanks -- jeff jonas

13 years, 4 months

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