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

by jon＠jonworld.com

All, I've added a VCB02 card to my MicroVax 2. Right now the VAX is setup with the following layout... Slot 1 KA630-A CPU M7606AF Slot 2 8M RAM M7609-AM Slot 3 8M RAM M7609-AP Slot 4 CMD SCSI MSCP encapsulating (top half) empty bottom Slot 5 M7516-YM (ethernet, top) M7546 for TK-50 (bottom) Slot 6 VCB02 Slot 7 VCB02 Memory Slot 8 VCB02 Memory Per the docs on bitsavers, the VCB02 can go in any QBUS slot 5-8, but the layouts in the manual are different than what I have setup. With the VCB02 in there POST takes longer, but the console still comes out on the serial port. The VCB02 shows 3 red LEDs. I assume I need to set the addressing on the card, but I have 0 clue what to do. -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 3 months

6
7
0 0

bbs/fideonet database for australia

by tom_a_sparks＠yahoo.com.au

I am looking for a bbs/fideonet database for Australia that lists the nodes that existed in the past so I can see if there were node around my location ? --- tom_a_sparks "It's a nerdy thing I like to do" Child of the Internet born 1983 PGP ID: A7EF6006 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

12 years, 3 months

4
4
0 0

HP 7925 disk drive on eBay cheap (Macon, GA)

by wmaddox＠pacbell.net

This has been relisted several times already, and I imagine the owner is likely to scrap it if it doesn't sell. http://www.ebay.com/itm/s/380869476221 --Bill

12 years, 3 months

2
1
0 0

Fire sale : NeXTdimension

by mokuba＠gmail.com

Selling off another fundraising peice 1 ram loaded NeXTdimension $600 Email off list for info Sent from my iPhone

12 years, 3 months

1
1
0 0

Some DECslides

by silent700＠gmail.com

Some time back (too long ago to remember, which lately means > 2 months) I purchased a set of slides marked "(C) Digital Equipment Corp." They were stuffed in a drawer and forgotten until recently, when I dug out my slide scanner for a different job. Thanks to inertia, the scanner stayed where it was and I scanned in the DEC slides as well. Nothing cohesive here and completely lacking context but I thought the DECfans among us might find them interesting. They appear to be part of some sort of training materials: http://silent700.blogspot.com/2014/03/and-some-more-slides.html Enjoy! -jht -- silent700.blogspot.com Retrocomputing and collecting in the Chicago area: http://chiclassiccomp.org

12 years, 3 months

3
2
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DEC 3000 Systems Available in So. California

by nf6x＠nf6x.net

I have five DEC 3000 series machines that came along with a batch of other items. They do not interest me, and I think that their present monetary value per unit weight is low. Model numbers vary, installed cards vary, and I haven't opened them up or studied them carefully. Paint is scratched up and on some of them the vinyl feet have turned to sticky goo. I want them gone, but I'd prefer not to scrap them. These are just the main boxes, with no keyboards, monitors or cables. One of them looks like it has some sort of fiber optic interface card installed. Some look like they have graphic boards installed, some don't. At least one of them appears to have a CD ROM drive. Does anybody want them? I'm not interested in packing or shipping them. I'll give them away free if you come pick them up at my home in Riverside on a weekend (note, rough dirt road... truck recommended), or sell them for $4 each if I need to load them back up in my truck and bring them to my workplace in Irvine for a weekday pickup. :) -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/

12 years, 3 months

1
0
0 0

[OT] Euclid-is CAD (Matra)

by supervinx＠libero.it

Servicing a DECstation 5000, I found this old CAD, Matra Euclide-IS. I managed to make it start: it use a proprietary DB to store objects. The problem is this: I can retrieve stored objects (the equivalent of drawings), but haven't figured out how to display them :P Menus are not so obvious. I mean that it loads the drawing with no errors, and I saw only the axes on the graphic screen. Tried to recalculate, changed view... Created a drawing by myself: saved it. On reopening, it happens the same. I checked the database, and objects are there... I'm missing something: did you ever use it? Thanks!

12 years, 3 months

3
4
0 0

SCSI to SD

by aek＠bitsavers.org

This was on vintage-computer, hadn't seen it before http://www.vintage-computer.com/vcforum/showthread.php?42056-Why-aren-t-the… http://www.codesrc.com/mediawiki/index.php?title=SCSI2SD

12 years, 3 months

1
0
0 0

Interest in a PDP-8/e/a/f/m 32K RAM kit?

by steve＠tronola.com

From: Philipp Hachtmann <hachti at hachti.de> >No more bus driver discussion, PLEASE! >Throwing up this bus driver thing again and again >discourages people. --- Philipp, I hope you will permit me to answer criticism. I think that if we keep it cordial and constructive, it will serve the useful purpose of answering concerns about Omnibus interfacing. I can show that, in fact, the interface approach being used is completely compatible with DEC Omnibus interface practice. From: Eric Smith <spacewar at gmail.com>: >Now consider the same question if the vendor explicitly claimed that it did >meet the specification, and put on their web site a well-intentioned but >flawed analysis of that claim. Would you complain about someone that >pointed out the flaw in the analysis? --- Hi Eric, As I pointed out before, I didn't claim in the article that the receivers meet "Omnibus specifications", only that I judged it to be close enough. (The transmitters easily exceed DEC practice.) I apologize if the way I originally presented it was confusing. One of the problems with establishing compatibility with Omnibus specifications is that no comprehensive Omnibus specs have turned up so far. Instead, we have to look at actual DEC design practice. Since you raised concerns about it, I have rewritten the section to clarify the matter. In doing so, I did additional research which revealed that DEC used various ordinary TTL gates as Omnibus receivers on many occasions. There is a list of twelve citations, involving 58 Omnibus connections, which documents this practice. TTL gates used include 74H87, 74H04, 74153, 7404, 7412, 7439, 7410, 7430, 7474, and 74H11. These were employed for timing signals, control signals and for data buses. This list is by no means comprehensive, since I only spent a short time searching schematics. No doubt, we could find many other instances. You can see the full table at: http://tronola.com/html/ram_for_pdp-8e.html#Secret The conclusion from this table is that DEC certainly regarded standard TTL input specs as adequate for an Omnibus receiver. Moreover, the specs on the Omnibus interfaces of the 32K RAM board are as good or better than the cited DEC instances. Since quite a few of these instances involve critical signals of CPU cards, we can say that virtually all PDP-8/e, f and m systems have receivers with standard TTL interface characteristics. Thus, there is no reason to suspect that there will be any limitations in using this design, relative to existing DEC hardware. I appreciate your giving me an opportunity to clarify things and to hopefully lay to rest, any concerns about the interfaces. Steve Lafferty

12 years, 3 months

2
1
0 0

Truevision ATVista driver or capture software

by rmay635703a＠yahoo.com

Yes I would be very interested in any Targa related files being placed up for download, thank you Kelly. I also have been searching for Topas or any of the old utilities listed in the software manual Cheers Ryan May

12 years, 3 months

2
1
0 0

PDP 8/e, RK8E Weirdness - Scope Traces - Update

by rickb＠bensene.com

Hello, all, This morning I did some looking at my RK8E boards, and it appears that it has been ECO'd to make a change to the clock generation logic for the Current Address Counter. This ECO supposedly helped with the issue, but apparently it isn't good enough for this RK8E to work properly in my 8/e. I tacked in an extra probe wire to the least significant bit of the Current Address Counter on the RK8E. I put things back together, and toggled in my little test program that loads the Current Address Counter with 0, then loops on itself to generate scope traces. When I ran the program, it was instantly obvious that the counter is indeed incrementing due to the transient in the clock signal. The LSB of the counter goes to logic 0 for a short time (as a result of the load operation), then pops up to logic 1 due to the transient causing a count cycle on the 74161 counter. You can view the traces here: http://pail.bensene.com/RK8ECounter.jpg The top trace is the LOAD signal into the counter, the middle trace is the CLK signal into the counter, and the bottom trace is the LSB of the counter. It's clear that when the CLK signal goes high (the clock triggers on the positive edge) after the transient, the counter counts up one, causing the LSB to go to 1. As David Humphries mentioned, it appears to be a design flaw in this clock generation circuitry that, depending on small timing variances in different machines, causes this transient to be generated, messing up the operation of the RK8E. A couple of different signals from the master timing of the PDP 8/e are used to generate this clock signal, and it could be that one of these signals on my machine is slightly off due to variances in propagation times in gates and flip flop timing chains that manifests this weakness in the RK8E Current Address Counter clock circuitry. The machine where the RK8E was tested as good may have had slightly different timing that either rendered the transient too short to trigger a count, or eliminated it completely. The next step is to try to figure out what I need to modify to make this transient either go away or such that it is no longer effective in triggering the Current Address Counter to count up before DMA operations begin. Suggestions as to how to clear this up are warmly welcomed. Thanks to all, Rick Bensene

12 years, 3 months

27
75
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Osborne 1 blues...

by supervinx＠libero.it

Hi folks! I grabbed my first Osborne I today :) I powered it and it showed a crisp and vivid monitor :D I had a bunch of disks, but none of them worked (boot error). So I tried them elsewhere: they were all Double Density (so I have DD drives) but almost unreadable: the surface is dirty and covered with spots, may be fungi :( I dowloaded some IMD images and gave it a try... It booted with the Osborne logo and then the screen was slowly filled with junk, mainly "@". The Osborne stopped responding: I pressed the Reset button... Continuous beep on reboot, screen filled with random chars. I powered off, waited some minutes: no changes, no boot. Beep and screen junk, the floppy drives lights dance rhythmically :p I'll able to open it only the next week (the work table is full), but I'd like to figure out what's happened. Ram? Rom? Thanks!

12 years, 3 months

13
25
0 0

IBM 5150 (mine)

by terry＠webweavers.co.nz

One more in the can. The IBM PC revisited in HD. Nothing new for anyone on this list but anyway... http://youtu.be/S7W31N4wcaA Terry (Tez)

12 years, 3 months

1
0
0 0

OmniUSB and pdp8/a - anybody experience?

by hachti＠hachti.de

Hi folks, I have or don't have a problem with one of the OmniUSB board. I just don't know. So is there anybody who has tried to use a board in a pdp8/a? Or is there someone with a board and a pdp8/a at hands to give it a try? This is the story: I distributed most of the OmniUSB boards last year. And did not get very much feedback from the people who bought them. I know only of one party having successfully used the board. All boards have been checked with a special CPLD firmware and a checkout program on the pdp8 which together provide complete test coverage for all signal ways going to the pdp8 and back. Even the DIP switches were tested individually. So I strongly assume that all boards I shipped are working fine. But.... A few weeks ago I got informed of a board just not doing anything in a pdp8/a. I gave hints how to use it etc. Then I asked to send the board back to me to check what is wrong with it. The board arrived and I put it into my development 8/e - works perfectly. I also did my checkout routines - everything seems to be perfectly fine. Now I have no idea what could be wrong. Something with the 8/a? Or a general 8/a issue? The 8/a has the same CPU as the 8/e afaik. Could there be some subtle differences between 8/a and /e? Following some detailed info about how OmniUSB talks to the Omnibus: These are the signals from and to the Omnibus: > -- Omnibus connections > io_pause : in std_logic; > ts3 : in std_logic; > tp3_n : in std_logic; > sw_n : in std_logic; > initialize_n : in std_logic; > md : in std_logic_vector (3 to 11); > DATA_R : in std_logic_vector(4 to 11); > DATA_D : out std_logic_vector(4 to 11); > internal_io_d : out std_logic; > c0_d : out std_logic; > c1_d : out std_logic; > skip_d : out std_logic; > int_rqst_d : out std_logic; The most operations are enabled by a signal named io_active which is: > io_active <= io_pause and ts3; e.g. > if (match_rx = '1' or match_tx = '1') and io_active = '1' then > internal_io_d <= '1'; > end if; for driving the internal_io Omnibus line Might this be a problem? Is there anything different with 8/a bus timing? Is the TS3 signal unavailable? Is the io_pause signal unavailable? I appreciate any hint. Kind regards Philipp

12 years, 3 months

2
1
0 0

PDP-8a Restoration/RL01 issues

by anders＠abc80.net

> Message: 9 > Date: Fri, 21 Mar 2014 10:06:59 -0600 > From: Roe Peterson <roe at liveblockauctions.com> > To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org>; > Subject: Re: PDP-8a Restoration/RL01 issues > Message-ID: <532C63A3.9040302 at liveblockauctions.com> > Content-Type: text/plain; charset="ISO-8859-1"; format=flowed > > On 03/21/2014 09:55 AM, Ethan Dicks wrote: >> On Thu, Mar 20, 2014 at 4:47 PM, Anders Sandahl <anders at abc80.net> wrote: >>> Ok, I got the parts and putted the things together. > > It might be a good idea to cover the window on the eprom in your third > photo... > I'll fix that. /Anders

12 years, 3 months

1
0
0 0

Group buy for PDP-8/e/a/f/m 32K RAM kit

by vrs＠msn.com

We have 18 paid units for the group buy, which is enough for the buy to proceed. There are still several folks who expressed interest, but have not paid. If you want one of these, now is the time! Here are the details again, in case you missed them: The 32K RAM kit is for an Omnibus card that should work in the PDP-8/e, 8/f, 8/m, and 8/a: - Complete kit, including battery, PCB and parts. Soldering required. Includes IC sockets for the RAM kit, but not for the prototype area. - The amount is $95, including shipping. If you are outside the USA, please add $20 for shipping. - Please make Paypal payment to this email address. It will show my wife's name, Hildebrand. (My initials are vrs, and that email is just my initials at msn.com.) - Ordering for this project will close March 31, 2014. - The kits are expected to ship by May 8th. (Long PCB turn time is used to keep the price down.) - Please allow up to 10-days for delivery. Some features of the kit: - Battery backup with long life. - Inhibit on power fail to prevent memory corruption. - Easy to build, with all through-hole parts. - Provides full 32K memory in a single card slot. - Cooperation with any mix of core memory or ROM boards. - Compatibility with the Omnibus. - Most of the full Omnibus board area is laid out for prototyping. - High quality board with gold fingers, plated holes, silk screen and solder-mask. You can read Steve's article about the prototype here: http://www.tronola.com/html/ram_for_pdp-8e.html Thanks, Vince

12 years, 3 months

2
2
0 0

Parhelion Helios

by lproven＠gmail.com

Apparently there's a project to revive it. http://www.geekdot.com/helios-ng Source on OSnews: http://www.osnews.com/comments/27631 The first comment is a nice little paean to the Atari Abaq which people might enjoy - with a link to a Youtube video of boot-up. -- 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

12 years, 3 months

1
0
0 0

DEC Unibus Interface ICs

by ak6dn＠mindspring.com

I did a comparison of the bus input receiver on the 26S10 vs 8641 a while back. Here is the plot: http://ak6dn.dyndns.org/stuff/26S10vs8641.jpg As you can see, there is about a 0.5V difference in the receiver threshold. May make a difference in some configurations, probably not in most. Also the 26S10 is a faster device on the bus transmitter output. This may cause undesired reflections/ringing under some bus loading conditions. Ideally the transition time should be longer than the electrical length of the bus. With a 26S10 the maximum unibus length would be much shorter than with a legacy 8641. Again, may make a difference in some configurations, probably not in most. Don -----Original Message----- >From: Vincent Slyngstad <vrs at msn.com> >Sent: Mar 19, 2014 12:07 PM >To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> >Subject: Re: DEC Unibus Interface ICs > >From: Paul Birkel: Monday, March 17, 2014 12:13 PM >> Unibus Handbook Figure 1-30 does specify the RC-equivalent input for this >> IC but I have not as yet tried to cross-walk it against well-known >> SN74xx-series chips. I imagine that I'm the umpteenth person to encounter >> this problem, so before I try to rediscover fire I'm hoping that someone >> else could share their torch of knowledge :->? > >I remain a fan of the AM26S10 for this, though like everything else, it fails >to meet the detailed specifications. > > Vince

12 years, 3 months

3
2
0 0

microVax II memory question

by azd30＠telus.net

Hi, The QBus field guide is pretty specific when it comes to the M7609, but rather terse when it comes to the M7621 description. Reading through the KA630 and 650 CPU module user's guides, it seems both CPU's communicate with RAM via CD and the 50 pin ribbon cable. Is the main difference between the uVax memory boards just access speed, or are they matched by design to the various CPU's? ie. can an 8Mb board from a KA650 CPU be used with a KA630 CPU? thanks -- alex

12 years, 3 months

7
8
0 0

H89 assembled or never assembled?

by starbase89＠gmail.com

Hey, A friend of mine has had an unassembled Heathkit H89 in original packaging. He wants to know if it is worth any more or less because it was never assembled. If anyone could help, we'd appreciate it! Thanks Joe.

12 years, 3 months

7
9
0 0

Pdp11/93 wanted

by roe＠liveblockauctions.com

I'm hunting for a pdp11/93 with 4MB of memory. If anyone wants to let one go, I'd pay a nice price. Thanks.

12 years, 3 months

1
0
0 0

Need to re-home my Sun E10K

by jon＠jonworld.com

All, Many of you know I took in Pat's E10K. Sadly, I just don't have the time or physical power requirements to get it going. I need to find it a good home. Here is what I know... 64 400Mhz CPU x 64G of RAM E10K. Comes with an assortment of PCI-based and sbus-based IO boards. Has S1 boot drives. It has 2x U5 SSPs that have the SSP software and run and boot. It comes with several spares including power supplies, system control boards and system boards. It's crammed with various IO boards of the FCAL, ethernet and SCSI varieties. It's located in Indianapolis, IN 46219 in my garage. You'll need a truck with a lift to pick it up. -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 3 months

1
0
0 0

New retro computing site

by lproven＠gmail.com

Well, new to me, anyway. http://www.1000bit.it/ You're meant to read that in binary - in other words, it's about eight-bit home micros, mainly. An eBayer looking at my DEC tapes asked me if I had any fliers or commercial literature for them, which sadly I don't. -- 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

12 years, 3 months

1
0
0 0

PDP-8a Restoration/RL01 issues

by anders＠abc80.net

> > I bought this one on ebay (I'm still waiting for it to arrive): > http://www.ebay.com/itm/250975975234 > > Datasheet: > http://pdf1.alldatasheet.com/datasheet-pdf/view/161645/EPSONTOYOCOM/TCO-711… > > I'm not very good at Japanese(?), but it seams like it is a 5V > component with TTL compatible outputs. I have drawn a small adapter > PCB that I will try to make this weekend. I'll post pictures of it if > anybody is interested. > > /Anders Ok, I got the parts and putted the things together. Replaced the broken integrated oscillator on the RL8A and putted the controller back in. Managed to load a cartridge and the "READY" illuminated after the disk spun up! Success! http://www.abc80.net/docs/pdp8/pdp8a/DSC_2303.JPG http://www.abc80.net/docs/pdp8/pdp8a/DSC_2304.JPG http://www.abc80.net/docs/pdp8/pdp8a/DSC_2305.JPG http://www.abc80.net/docs/pdp8/pdp8a/DSC_2306.JPG Now I will try to run the test programs for the controller and the disk. /Anders

12 years, 3 months

3
2
0 0

Gravis GF1 / ICS11614 Technical Reference

by alan＠alanlee.org

Hello, I'm looking for any technical reference material on the ICS11614 aka Gravis GF1 chip on the original GUS series of sound cards. Specifically I'm after pin map, AC and DC electrical characteristics (basically the Datasheet) and a register level reference such as a programmers technical reference manual. If anyone can point me in the right direction, I would greatly appreciate it! Thanks, -Alan

12 years, 3 months

1
0
0 0

Data General Aviion System 3600R

by sales＠elecplus.com

WTS Data General AVIION 3600R, USED, qty 1, CALL, Data General AVIION 3600R System Made in the USA. I have this whole cabinet full of boards and hard drives. Anyone interested let me know soon before it goes to La La land. Jim Firlik Techway Services Phone: 855-832-4929 x201 Jim at techwayservices.com NOT affiliated with seller. If someone wants this, give him a call or email. Cindy Croxton Electronics Plus

12 years, 3 months

1
0
0 0

Looking for Zilog S8000 stuff

by derschjo＠gmail.com

Hey all -- Got myself a Zilog S8000 Model 31 in operable condition. It's a bit of a mongrel (I'll get into that later) and of course the drives have been wiped. I know this is a long shot, but does anyone happen to have any media for this thing, in any format? There doesn't appear to be much out on the 'net about this thing so I'm guessing that software is going to be hard to come by, but I have to try, right? I'm also looking for an ECC controller for this thing -- when I got it it had several random (and possibly mutually incompatible) boards installed in random slots. I have one 1mb ECC board (no controller), one 1mb parity memory board (that I have no documentation for -- nothing on Bitsavers matches this thing) and one 128K parity board that appears to have been upgraded to 512K (4 rows of 18 64kbit DRAMs). There's also an "I/O Processor" board (with its own Z8001 cpu) which I have no information on. I'll be dumping the EPROMs from this once I get my stuff unpacked from my recent move, I can also take pictures of stuff if anyone's interested... Thanks as always, Josh

12 years, 3 months

1
0
0 0

Looking for HP UX to run on an HP 712

by slandon110＠gmail.com

Does anyone got the CDs for HP UX that will run on an HP 712 Thanks Steve

12 years, 3 months

2
1
0 0

Article- Mechanical analog computers

by bearnold＠outlook.com

Couple of you Navy guys might find this interesting. http://arstechnica.com/information-technology/2014/03/gears-of-war-when-mec… While not perfect, I think it is a decent explanation of mechalog computing.

12 years, 3 months

1
0
0 0

DEC Unibus Interface ICs

by steve＠tronola.com

>For new designs, or rewiring old ones (dead-bug?), is there a generally >agreed logical substitute for the 8640? --- The DEC8640 is recognized as the National Semiconductor DS8640, long obsolete of course. It is listed as being available here: http://octopart.com/partsearch#!?q=ds8640 Most sources there quote by RFQ (which I have found does work) but one, Quest, has it for $15. Steve Lafferty

12 years, 3 months

1
1
0 0

DEC Unibus Interface ICs

by pbirkel＠gmail.com

The DEC PDP-11 Unibus Handbook identifies three standard ICs for use when connecting to Unibus lines: Bus Receiver - 8640 Quad NOR Bus Transceiver - 8641 Quad Bus Driver - 8861 Quad NAND It seems to be generally agreed that the 8861 driver/transmitter can be substituted by the 7439 Quad 2 Input NAND Buffer O.C. There seems to be no recognized physical substitute for the 8640, at least in part because it uses the 1 & 8 pins rather than 7 & 14 pins for GND/VCC, respectively (see Figure 1-25). Is that correct? What have folks been doing when needing to physically replace one of these -- substitute from a sacrificial module? For new designs, or rewiring old ones (dead-bug?), is there a generally agreed logical substitute for the 8640? Unibus Handbook Figure 1-30 does specify the RC-equivalent input for this IC but I have not as yet tried to cross-walk it against well-known SN74xx-series chips. I imagine that I'm the umpteenth person to encounter this problem, so before I try to rediscover fire I'm hoping that someone else could share their torch of knowledge :->? ----- paul

12 years, 3 months

2
1
0 0

More eBay spam

by lproven＠gmail.com

I'll keep it short. Stuff that might interested CCmp types... TEAC 5.25" HD (1.2MB) floppy drive http://www.ebay.co.uk/itm/271428687740 Set of 4 x 1600bp 9-track tapes: VAX software & others http://www.ebay.co.uk/itm/271429544913 Set of 3 DEC Compactape TK50 cartridges in original packaging with blank labels http://www.ebay.co.uk/itm/271429550658 Set of 7 3M Compactape TK50 cartridges in original packaging (used) http://www.ebay.co.uk/itm/271429552762 N.B. I have 3 sets of 7 - if it sells, I'll be relisting the last item as-is. Perfectly happy to split if you only want 1 or 2 items. -- 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

12 years, 3 months

1
0
0 0

VAXSTATION 1's

by martin＠furuhjelm.com

The RQDX2 controller (MFM and floppy) received the scatter/gather list as part of the MSCP command - thus offloading the scattering and gathering to the device. On 3/19/14, 11:00 , "cctech-request at classiccmp.org" <cctech-request at classiccmp.org> wrote: >On Tue, Mar 18, 2014 at 9:11 AM, Ethan Dicks <ethan.dicks at gmail.com> >wrote: >> >>That is essentially it. Between maxxing out at 4GB of RAM and how >>slow the KD32 was, ISTR they didn't last long after the MicroVAX >>II/VAXstation II came out a few years later. >> > >(We all know you mean 4MB, not 4GB). > >http://ifctfvax.harhan.org/Quasijarus/vaxhw/overview.html > >Q22-bus MicroVAXen >KA610 aka KD32 was the first Q22-bus MicroVAX made. It is also the >worst VAX ever made. This is because it violates the two-layer bus >structure requirement (see above). KA610 aka KD32 is the only Q22-bus >MicroVAX on which there is no bus adapter or any other kind of nexus >standing between the CPU and the Q22-bus devices. KA610 aka KD32 uses >the Q22-bus as its VAX main bus and Q22-bus memory as main memory. >Among other horrible things, this means that the main memory is >limited to 4 MB and that no scatter-gather DMA is possible.

12 years, 3 months

2
1
0 0

Bizarre floppy drive behavior

by snhirsch＠gmail.com

Well, I'm embarrassed. The Teac units are indeed 35-track drives with deathly slow seek rates. Just finished formatting, reading and writing a couple of diskettes under IMD. I had already tried slowing down the step rate as far as 10ms, but never went any further since I had never encountered a drive any slower than that. This is a lesson I won't forget! Thanks again to all. Steve --

12 years, 3 months

5
5
0 0

Bizarre floppy drive behavior

by dm561＠torfree.net

----- Original Message ----- > Date: Tue, 18 Mar 2014 07:14:36 -0400 (EDT) > From: Steven Hirsch <snhirsch at gmail.com> > > On Mon, 17 Mar 2014, MikeS wrote: >> Any chance it has a jumper setting that puts it into double-step mode and >> emulates a 'normal' 40 track drive (albeit with a narrow head)? AFAIK RPM >> and >> current would be the same. > > Could be, but that doesn't explain why it seems to single-step when a > train of pulses arrive at the max rate, yet double-step when they arrive > individually. > > I really hate to write off these two drives. They are incredibly clean > units, probably NOS and were top of the line in their day. > > Steve ----- Reply: ----- Then maybe the step rate is just too fast for those drives? Some systems did have an option to set the step rate depending on the drive type. Are the rails immaculately clean, i.e. no unusual friction? Maybe try exercising one of the drives for a bit to see if that helps...

12 years, 3 months

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Bizarre floppy drive behavior

by dm561＠torfree.net

----- Original Message ----- > Date: Sun, 16 Mar 2014 13:19:10 -0700 > From: Chuck Guzis <cclist at sydex.com> > > On 03/16/2014 12:42 PM, Steven Hirsch wrote: > >> Question remains: Why is it doing this? Are both drives defective? > > I doubt it--lots of Tandy enthusiasts have used these drives for years. > > I'll think on it, but do you have the termination pack installed if this > is the only drive on the cable? Sometimes you get odd effects if the > terminator is omitted. > > --Chuck ------ Reply:----- Any chance it has a jumper setting that puts it into double-step mode and emulates a 'normal' 40 track drive (albeit with a narrow head)? AFAIK RPM and current would be the same.

12 years, 3 months

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VAXSTATION 1's

by me＠GarrettMeiers.com

So, I found three VAXSTATION 1's, and I can find little about them... Other than the one-liner that Wikipedia has about them. Does anyone have any more specs on these? Picture here: https://www.dropbox.com/s/enjkzjq3euk07md/2014-03-17%2019.15.43.jpg ?Thanks,? ? Garrett Meiers Founder, BitHistory.org & President, ConsulNIX, LLC www.BitHistory.org www.linkedin.com/in/theunixguy

12 years, 3 months

4
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Free AlphaServer 1200 and 4100

by rodent＠NetBSD.org

Greetings, This is not a very easy message to write. After about 13+ years of running AlphaServers, I will be decommissioning them within two weeks. As sometimes it takes a while to find new owners for these machines, I'm sending this message in advance to gauge interest in taking them. They are: DEC AlphaServer 1200: (1) 533 MHz 21164A-2 CPU (until recently, it had two of these. One is now showing a fan error. Perhaps, if you replaced the fan, it still might work, if the board is OK), 1 GB ECC RAM, (2) 9.1 GB disks (one is DEC OEM :]), (2) 18.2 GB disks, (3) 36.4 GB disks, (2) DEC DE500-XA 100 Mbit ethernet adapters, ARC Logic 2000PV VGA adapter (2 MB RAM?), QLogic 1020 Fast Wide SCSI HBA, Mylex RAID DAC960P/PD controller with 8 MB RAM. DEC AlphaServer 4100: (4) 467 MHz 21164A-2 CPUs (one of these is dying, but I have a replacement for it), 1 GB ECC RAM, (2) 9.1 GB disks (one is also DEC OEM :]), (2) 18.2 GB disks, (3) 36.4 GB disks, (2) DEC DE500-[A,B]A 100 Mbit ethernet adapters, S3 Trio32/64 VGA adapter (1 MB RAM?), QLogic 1020 Fast Wide SCSI HBA, Mylex RAID DAC960P/PD controller with 8 MB RAM, (2) 9.1 GB disks configured RAID1, (4) 9.1 GB disks configured RAID5, another (4) 9.1 GB disks configured RAID5, (3) 9.1 GB disks configure RAID5. That makes (3) StorageWorks arrays in the pedestal. Pictures of the machines are available upon request. There's probably some other goodies in the box at the colo. I can't remember what's inside. Definitely, I have (3) DS 1287 TOY (time of year) chips. These are not very easy to find. These machines are available to (in order of priority): 1) NetBSD/alpha port maintainers; 2) NetBSD/alpha developers; 3) pkgsrc developers (any platform/any OS); 4) NetBSD developers; 5) Developers from any other open source OS; 6) The general public; First person(s) in those categories showing interest gets them. You don't have to take both; you can just take one if for some reason you don't want both. I'm not parting them out, though. They've available for pickup in Troy, MI, UNITED STATES, and I can coordinate with the colo for you. The colo will also ship these machines for me, if you are willing to pay the shipping. In that case, they're not limited to any particular geographic area. The members of this list have 14 days to declare interest/work out the logistics of procuring these machines. Any other ideas for finding new owners is also welcome. Best regards, rodent@

12 years, 3 months

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SCSI to CF adapter on Sun

by kurt.m.nowak＠gmail.com

Has anyone had any success using SCSI to CF adapters on Sun SPARCs? I was thinking about something like a Stratos Technology CF Aztecmonster for my SPARC Classic. Any other better suggestions? Thanks! -Kurt

12 years, 3 months

2
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Free AlphaServer 1200 and 4100

by rodent＠NetBSD.org

Greetings, This is not a very easy message to write. After about 13+ years of running AlphaServers, I will be decommissioning them in two weeks. As sometimes it takes a while to find new owners for these machines, I'm sending this message in advance to gauge interest in taking them. They are: DEC AlphaServer 1200: (1) 533 MHz 21164A-2 CPU (until recently, it had two of these. One is now showing a fan error. Perhaps, if you replaced the fan, it still might work, if the board is OK), 1 GB ECC RAM, (2) 9.1 GB disks (one is DEC OEM :]), (2) 18.2 GB disks, (3) 36.4 GB disks, (2) DEC DE500-XA 100 Mbit ethernet adapters, ARC Logic 2000PV VGA adapter (2 MB RAM?), QLogic 1020 Fast Wide SCSI HBA, Mylex RAID DAC960P/PD controller with 8 MB RAM. DEC AlphaServer 4100: (4) 467 MHz 21164A-2 CPUs (one of these is dying, but I have a replacement for it), 1 GB ECC RAM, (2) 9.1 GB disks (one is also DEC OEM :]), (2) 18.2 GB disks, (3) 36.4 GB disks, (2) DEC DE500-[A,B]A 100 Mbit ethernet adapters, S3 Trio32/64 VGA adapter (1 MB RAM?), QLogic 1020 Fast Wide SCSI HBA, Mylex RAID DAC960P/PD controller with 8 MB RAM, (2) 9.1 GB disks configured RAID1, (4) 9.1 GB disks configured RAID5, another (4) 9.1 GB disks configured RAID5, (3) 9.1 GB disks configure RAID5. That makes (3) StorageWorks arrays in the pedestal. Pictures of the machines are available upon request. There's probably some other goodies in the box at the colo. I can't remember what's inside. Definitely, I have (3) DS 1287 TOY (time of year) chips. These are not very easy to find. These machines are available to (in order of priority): 1) NetBSD/alpha port maintainers; 2) NetBSD/alpha developers; 3) pkgsrc developers (any platform); 4) NetBSD developers; 5) Developers of any other open source project; 6) The general public; First person(s) in those categories showing interest gets them. You don't have to take both; you can just take one if for some reason you don't want both. I'm not parting them out, though. They've available for pickup in Troy, MI, UNITED STATES, and I can coordinate with the colo for you. The colo will also ship these machines for me, if you are willing to pay the shipping. In that case, they're not limited to any particular geographic area. The members of these lists have 14 days to declare interest/work out the logistics of procuring these machines. Any other ideas for finding new owners is also welcome. Best regards, rodent@

12 years, 3 months

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SCSI to CF adapter on Sun

by earl＠baugh.org

> From: "Kurt M. Nowak" <kurt.m.nowak at gmail.com> > Subject: SCSI to CF adapter on Sun > Message-ID: <5325D3DD.1050001 at gmail.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Has anyone had any success using SCSI to CF adapters on Sun SPARCs? I > was thinking about something like a Stratos Technology CF Aztecmonster > for my SPARC Classic. Any other better suggestions? > > Thanks! > > -Kurt > I'm currently working on testing some of these out for my Sun's (back to Sun 2/120 and Sun 3/110...) Right now I just got the SCSI2IDE board I built working (thanks to an AHCS member... Go Alan! :-) ) ( http://n8vem-sbc.pbworks.com/w/page/57640284/SCSI2IDE ) and once I get a working console cable connected where I can watch it's behavior I'm going to begin testing it with my Sun's. I've also got a SCSI to SD card on order (hopefully will arrive by the end of the month) (http://www.codesrc.com/mediawiki/index.php?title=SCSI2SD#Overview) that I'll also be testing. So those are 2 options that seem less expensive than some of the others. I like the SCSI2IDE idea better (but I'm hearing that card is not going to be fast) since it would give me the option of either using Disk on Modules (DOM) for IDE, CF->IDE adapters or SD->IDE adapters (all of which I have that work). It would give the most options. SCSI2SD though should be good as well, just not as many options for the actual storage. Earl

12 years, 3 months

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Truevision ATVista driver or capture software

by rmay635703a＠yahoo.com

i am looking for the fabled Windows NT ATVista targa graphics card drivers/software. I have been reading old articles and it was claimed an expensive solution existed to capture frames from the card under Windows NT. I would even use a dos capture program if it could run in a dosbox under windows (the version I have off the demo disk seems to lock up if in windows) Heck even one for Windows 3.x or 9x would be great. Any ideas where to start? I can't even find the ATVWin.exe or tiga graphics drivers anymore, sheesh. Thank You Ryan

12 years, 3 months

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lexitron videotype

by simski＠dds.nl

Hello all, we at https://hack42.nl just bought a very cool looking terminal, a Lexicon Videotype like this one: http://aheckofa.com/FoolMeOnce/MiscScans/EarlyVideoWP400.png but it is only the terminal. We think it is missing some cpu box, because it has a 96pin connector on the back. does someone have information on this thing? -- Met vriendelijke Groet, Simon Claessen drukknop.nl

12 years, 3 months

3
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kennedy 9000

by info＠drukknop.nl

Hello all, we've got a couple of those and have not find the time to power them up. are there things to look after before you do that, besides the elcos and caps in general? are there docs around. found something for a 9100, but is is totally different. -- Met vriendelijke Groet, Simon Claessen drukknop.nl

12 years, 3 months

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Bugger the jetpack, where's my 21st-century Psion? • The Register

by woyciesjes＠sbcglobal.net

Interesting bit: http://www.theregister.co.uk/2014/03/07/bugger_my_jetpack_wheres_my_21stcen… -- --- Dave Woyciesjes --- ICQ# 905818 --- CompTIA A+ Certified IT Tech - http://certification.comptia.org/ --- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/ Registered Linux user number 464583 "Computers have lots of memory but no imagination." "The problem with troubleshooting is that trouble shoots back." - from some guy on the internet.

12 years, 3 months

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Bizarre floppy drive behavior

by snhirsch＠gmail.com

I'm hoping someone can shed light on this. I picked up a couple of NOS Teac FD-50A-03 floppy drives with DEC badges on the front and have been trying to use them in various older systems with little success. Yesterday I sat down with ImageDisk on my duplicating machine and started digging deeper. These things are behaving very oddly. From what I read on the web, the FD-50A-03 is a single-sided, 96tpi drive that supports 250KB/sec data rate and spins at a conventional 360rpm. This seems nominally to be true, but... I created a reference diskette by formatting single-sided on a known good 1.2M drive at 300K/sec (to account for its 300rpm operation). This should be the correct layout for the Teac drive. Here's where things get weird: - If I configure IMD to treat this as an 80-track drive and tell it to read the reference diskette single-stepped, it can read even numbered tracks only. The odd number tracks all throw read errors. - If I put IMD into alignment mode and select a track at even decade using the 0-9 command, it properly seeks to that track and reads it with no errors! Since this works for, e.g. 4-7, the drive clearly is a 96tpi unit. BUT, if I single step in either direction from an even track using +/-, it tells me it's seeing data from a track that's _two_ steps away and reads as if it was slightly out of alignment. If I try to move back to the even decade, that is now off as well. Moving back to zero and trying a seek to that same track gets me back to a good read! - If I take a new, bulk-erased diskette and try to format it 80-track single-stepped, it starts banging into the limit stop at slightly past track 40 - almost as if it were actually double-stepping. So, question is: What in blazes is this thing doing and why? Both drives behave the same way. If they're both defective, it's a rather odd defect. Steve --

12 years, 3 months

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Bugger the jetpack, where's my 21st-century Psion? o The Register

by gwenhwyfaer＠gmail.com

On 15/03/2014, Philip Belben <philip at axeside.co.uk> wrote: > Late in 2012 finally gave in and bought a pocket-sized tablet PC (for > which read "smartphone" - in fact a Samsung Note)... [on folding keyboards] > The trouble is, it would probably use bluetooth, and there is little to > beat a bluetooth keyboard for creating security holes! OTOH, phones > usually have a jack socket for speakers, handsets, etc. These days, they also tend to have USB OTG ports; buy an OTG-to-host funnyplug and a USB keyboard, and you might just have what you need. USB keyboards are available in a huge range of sizes, including pocket-sized. And they won't run out of batteries just as you're about to commit your masterpiece to the screen. :) And given that you already have a Samsung Note, it could cost as little as a tenner for the keyboard and OTG-to-host widget. Alternatively, there are still no-name laptops emerging from China with WM8850 processors, 7" screens, real keyboards and price tags of about sixty quid on ebay.

12 years, 3 months

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Affordable Disk Cartridge Storage Ideas Needed

by a50mhzham＠gmail.com

When I was storing many RK05 carts, long ago, I had a 7 foot high steel shelving unit. For what ever reason, it was supplied with holes drilled in all the shelves, a few inches apart, in a neat row about 2 inches from the front of the shelf, and in another row across the back. I used cheap paneling to close off the back of the space between two of the shelves, and the sides, to keep the dust out. Threaded rods through the holes at front and back left gaps about the right size for the packs to be stored on edge. I even constructed a cover out of 3/8" plywood, with a 3 inch lip around it to accommodate the fact that the shelves were about 2 inches too shallow. Don't have shelving like that? You'll have to come up with something else. Maybe wood shelving with 3/8" dowels between them. -T At 04:01 AM 3/16/2014, you wrote: >Does anyone have recommendations for affordable/DIY space-saving >storage for disk cartridges? > >I have ~30 or so RK05, RL01, & RL02 disk cartridges that take too much >floor space in my workshop. I store them vertically, like vinyl >records, but the floor isn't the best place for them. :P > >Does anyone have a design/photo of a DIY shelf for safely storing >their disk cartridges, using the least "floor space" possible? > > >Thanks, > >Bob 780 . [Prosperity] Nothing is harder to direct than a man in prosperity; nothing more easily managed that one is adversity. --Plutarch a50mhzham at gmail.com ? N9QQB (amateur radio) "HEY YOU" (loud shouting) ? Second Tops (Set Dancing) ? FIND ME ON FACEBOOK 43? 7' 17.2" N by 88? 6' 28.9" W ? Elevation 815' ? Grid Square EN53wc LAN/Telecom Analyst ? Open-source Dude ? Musician ? Registered Linux User 385531

12 years, 3 months

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Affordable Disk Cartridge Storage Ideas Needed

by bobvines00＠gmail.com

Does anyone have recommendations for affordable/DIY space-saving storage for disk cartridges? I have ~30 or so RK05, RL01, & RL02 disk cartridges that take too much floor space in my workshop. I store them vertically, like vinyl records, but the floor isn't the best place for them. :P Does anyone have a design/photo of a DIY shelf for safely storing their disk cartridges, using the least "floor space" possible? Thanks, Bob

12 years, 3 months

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Free QIC Tapes

by drac7ft＠gmail.com

I have about 35 Quarter Inch Cartridge tapes (QIC) tapes that are free for the taking. Most are 3M DC 6150s and DC 600s (150MB and 60MB). They are in the Portland Oregon area and I would prefer not to ship. Contact Dennis at: drac7ft at gmail dot com

12 years, 3 months

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