- 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, 4 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, 4 months

4
4
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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, 4 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, 4 months

1
1
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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, 4 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, 4 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, 4 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, 5 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, 5 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, 5 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, 5 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, 5 months

13
25
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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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 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, 5 months

2
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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, 5 months

2
1
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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, 5 months

1
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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, 5 months

2
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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, 5 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, 5 months

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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, 5 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, 5 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, 5 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, 5 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, 5 months

2
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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, 5 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, 5 months

1
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FS: Motorola Droid Ultra 16GB

by slandon110＠gmail.com

I know its not ClassicCmp, But I recently switched back to iOS from Droid. Had the droid just over the 14 day return limit at verizon. Used it for a couple days found out I like my iOS Better Its a Motorola Droid Ultra 16GB in White, Running Android 4.4 Kit Kat- Fully Unlocked, works on verizon and all the GSM Providers out there. It has its original box and is in mint condition. Id like $300 for it. Thanks Steve

12 years, 5 months

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You have got to be kidding me

by BHuntsman＠mail2.cu-portland.edu

A VAXstation just sold on eBay for $2,021.51. I may be off my rocker, but that seems a bit high... :) http://www.ebay.com/itm/DEC-Vaxstation-4000-90-VS49K-AB-CPU-KA49-May-Work-P…

12 years, 5 months

17
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Rotring nc scriber

by info＠drukknop.nl

Hello all, got a scriber in my lap this week, but no userguide. can someone explain to me how to change the fontsize? also the lcd does not show any info, so i have no idea what the keypresses on functionkeys do. -- Met vriendelijke Groet, Simon Claessen drukknop.nl

12 years, 5 months

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Computing Now! - august 1983 assembling J.L.S board

by enrico.lazzerini＠email.it

I'm looking for " Computing Now! - august 1983 assembling J.L.S board ". Enrico

12 years, 5 months

1
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4004 Development System

by steve＠tronola.com

Hi Kyle, >Does anyone have any interest in a modern 4004 or 4040 development system? >I posted to the Vintage Computer Forum but didn't get a lot of interest >there. It would be similar in functionality to an Intel Intellec 4, but >will be smaller and will use a keypad with a hex display. > >I've got some rudimentary plans thus far, but don't really have an interest >in continuing if there's not a community interest. --- I for one, am certainly interested! With the 4004 being arguably the first microprocessor, it is truly the grand-daddy of personal computing! Steve

12 years, 5 months

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Needed: Tandy portable floppy drive diskette.

by tosteve＠yahoo.com

Tandy made a battery powered portable floppy disk drive for their model 100, 102, and 200 portable computer systems, called the PDD and PDD2. I need the Utility "boot disk" for the PDD - the first version - not the PDD2 second version. If anyone can send me a disk or even an image, I would appreciate it. Thanks- Steve. Sent from iPhone.

12 years, 5 months

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PDP-8a Restoration/RL01 issues

by anders＠abc80.net

> Date: Wed, 12 Mar 2014 13:09:30 -0400 > From: allison <ajp166 at verizon.net> > To: cctech at classiccmp.org > Subject: Re: PDP-8a Restoration/RL01 issues > Message-ID: <532094CA.2020704 at verizon.net> > Content-Type: text/plain; charset=ISO-8859-1 > > On 03/12/2014 12:22 PM, Ethan Dicks wrote:v >> On Tue, Mar 11, 2014 at 7:03 AM, <anders at abc80.net> wrote: >>> I have traced the problem back to the RL8A. The 8,2MHz oscillator is not >>> working... unfortunately I was not >>> able to find a though hole mounted one, just a SMD part... >> I did a quick search and didn't see an obvious source of through-hole >> oscillators at the right frequency (and it is a bit unusual), even >> from US vendors. >> >> One solution could be to mount an SMD oscillator in a 14-pin DIP >> machined-pin socket frame (with 10 pins removed) either on a small PCB >> or with flying leads and a spot of glue. >> >> -ethan >> > Most of the SMD parts are 3.3v.. > There are though hole out there, likely you will need a programable part > to get 8.2mhz. Check Silicon Labs for parts, digikey and mouser. > > Allison > 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

12 years, 5 months

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4004 Development System

by gkaufman＠the-planet.org

I would have an interest! I have an original Intellec 4, and have just constructed Martin Eberhard's superb 1702A EPROM programmer so I can backup the roms. I've never powered up the unit, but would be happy to provide detailed pictures etc. - Gary

12 years, 5 months

1
0
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Source for SIDs

by seefriek＠gmail.com

Can anyone recommend a reliable source of Commodore SID audio chips? I'm not hugely picky about the version. Not afraid of the cost of a pair on eBay, but the sellers all look relatively sketchy. KJ

12 years, 5 months

1
0
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4004 Development System

by seefriek＠gmail.com

From: dwight <dkelvey at hotmail.com> > What is that controller chip on the early Winchester > controller boards. That was a 64 pin part. > G??X300 or something. Scientic Microsystems (later Signetics) 8X300. It was 50-pin.

12 years, 5 months

1
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FS: Commodore SX-64 Portable and other C64 items for Sale

by florit＠gmail.com

Hi cctalkers, Up for offer is a slightly worn but completely working Commodore SX 64 Executive 'Portable'. This thing is really neat, the drive and monitor are integrated, making it luggable. I have fixed the keyboard membrane that is a typical problem with these, the keys all work. Floppy drive works, I'll include a stack of 5 1/4 floppies with it, one is the xmas demo (it was a hit here at my office, kinda like a vintage digital snow globe) and the Uridium video game. I'll also include the SX64 JiffyDOS rom upgrades that I never got around to installing (~$40 upgrade). This will speed up the drive access when installed. Also have the original manual and some other stuff that'll go in the lot. Asking $250, I'm willing to ship, buyer pays shipping, figure $30-$40 for shipping, I will pack this up and get you a shipping quote before paying. Paypal, money order, or personal check accepted (I will wait to ship until check clears). You can see photos of the C64-SX on my craigslist post here: http://sfbay.craigslist.org/sby/sys/4371664679.html I've also some other items: - Original Commodore C2N Cassette recorder, I think only for use w/ C64, has special cable interface. Untested, case could use a good cleaning. $5+shipping. - Commodore 1541 Floppy Drive, the disc eject mechanism is not working, but was able to write floppies on this with a PC some time ago (3 years), and the floppies read on the C64sx mentioned above. $5+shipping, this thing is solid so may not be a cheap ship. - 64NIC+ from the Cincinnati Commodore Comp Club in a clear cartridge case. This was a lot of fun, getting the Commodore onto the Internet and doing things like Twitter. Working, will include some printouts on how to use and network utilities floppy from 4 years ago (Twitter client no longer works due to protocol changes and I haven't looked to get newer versions of the network tools. $50 obo+shipping. If you're in the South SF Bay Area, we can coordinate to check the stuff out and pick up in person. I love this stuff, but priorities have changed, so I'm hoping this goes onto other folks that can also appreciate it. Please email me if you have questions or would like pictures, thanks! -- Louis Florit - :(){ :|:& };:

12 years, 5 months

4
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Convert PDP-11 RK05 disk pack to PDP8

by cramcram＠gmail.com

I've seen rumours that you can convert a PDP-11 RK05 disk into a PDP-8 style by swapping out the sector hub on the bottom. Is this: 1. True, I've done it, or, 2 It oughta work, or, 3 No way. Thanks, Marc

12 years, 5 months

11
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Transporting a Data General Nova 3 System

by nf6x＠nf6x.net

I'm picking up a Data General Nova 3 system with a removable-pack hard disk drive this weekend, and I would like to learn whether there are any shipping locks that should be engaged before I move the drive. I have some limited experience with DEC RL02 disk drives, which use the same style of removable cartridge and look very similar overall. The RL02 drives have a little metal plate which is supposed to be rotated to lock the heads in the parked position before moving the drive. It seems logical to me that the Data General drives may have a similar locking mechanism. I have posted a few pictures of the system over in a VCF thread: http://www.vintage-computer.com/vcforum/showthread.php?41477-Transporting-a… I'm pretty much rescuing the system the way a crazy cat lady takes in stray kittens. If somebody in the Los Angeles area is really lusting for a Nova 3 system, I'm willing to put you in contact with the seller so you can make him a better offer. I have way too many projects already... ;) The same seller also has a PDP-11/03 in a DEC cabinet along with an RX02 that I'm picking up as part of the package. Same offer applies: If somebody wants it more than I do, I'm willing to step aside and hook you up with the seller. My offer to the seller is pretty low, and I've told him how much more money he might make if he's willing to go to the effort of listing it on eBay, dealing with packing and shipping, etc. (i.e., I'm really not trying to take advantage of him). He accepted my offer because he wants them gone, and he wants them to go to somebody who will appreciate them and not tear them apart for parts and scrap value. So, somebody who lusts after one of these systems probably wouldn't need to sell too many kidneys to outbid me on them. :) -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/

12 years, 5 months

5
7
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DEC M8830 (DK8-E) Omnibus Real Time Clock

by rickb＠bensene.com

Hello, all, I'm looking for a DEC M8830 DK8-EA (Line Frequency) or DK8-EC (Crystal Controlled) Real Time Clock board to add to my PDP 8/e. Anyone out there have a surplus one of these, in known working condition, that they would be willing to sell(at a reasonable price) or trade? Trading stock is varied, and too diverse to list here. If you are interested in a trade, we can figure out your interests, and see if I've got something that works in trade. Please respond by private Email rather than to the list. Thanks, Rick Bensene

12 years, 5 months

2
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VCF East will be AWESOME this year.

by evan＠snarc.net

Just in case anyone's STILL not aware: the Vintage Computer Festival East "9.1" is only a little more than three weeks from now!!! You'd be nuts to miss the show this year. It is the largest one ever: 36 exhibits, more than a dozen lectures, consignment/vendors, museum tours, and a chance to win an oscilloscope from Tektronix. People are attending from three continents, all over the U.S., and quite possibly from other planets ... even Altair. :) All of the details are at http://www.vintage.org/2014/east/ and we're social at http://www.facebook.com/vcfeast. If I can't convince you to attend, then maybe Gordon Bell can! Said he: "As a speaker at the first September 1998 VCF, I have been delighted to see it grow and flourish. The Vintage Computer Festival is an important institution for computing history simply by getting everyone together for collecting, sharing, and trading all form of bits. Having a forum, gathering, and market for old stuff a.k.a. vintage computers and the software that made them live is an essential way to preserve and expand the history of computing -- for some of us, the greatest invention." So, cctalk'ers ...BE THERE or be out of alignment. :)

12 years, 5 months

5
5
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PDP-8a Restoration/RL01 issues

by anders＠abc80.net

> Date: Sun, 9 Mar 2014 09:20:00 -0700 > From: "Ian S. King" <isking at uw.edu> > To: cctalk at classiccmp.org > Subject: Re: cctalk Digest, Vol 127, Issue 13 > Message-ID: > <CAKtEJ03PodBWHzvwax32bvvzW+DQpfAJi5JevnEMiC=azEp8=g at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > >> >> Date: Sat, 08 Mar 2014 12:29:41 +0000 >> From: anders at abc80.net >> To: cctech at classiccmp.org >> Subject: Re: PDP-8a Restoration/RL01 issues >> Message-ID: >> <20140308122941.Horde.9d9EcJ0ZUHxRqnL8YaU7-g5 at blue.abc80.net> >> Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes >> >> Just a small update about what I have found so far. >> >> 1. The "FAULT" lamp on one of the drives was broken. >> 2. The solenoid on the other was jammed. This means that both drives >> behaves the same. >> 3. There is no clock present from the controller. >> >> Have to fix the controller first. >> >> /Anders > > > Re: PDP-8a Restoration/RL01 issues > > Be sure you have the Berg connector on the controller oriented > correctly. You won't break anything if you don't, but the clock won't > get to the drive, as you're seeing. -- Ian > > -- > Ian S. King, MSCS ('06, Washington) > Ph.D. Student > The Information School > University of Washington > > Madness takes its toll - please have exact change. > I have traced the problem back to the RL8A. The 8,2MHz oscillator is not working. I cut the leg on the next IC after the crystal oscillator, a 74LS00 to make sure that nothing after the integrated oscillator was holding the clock down. I'm now waiting on a new oscillator, unfortunately I was not able to find a though hole mounted one, just a SMD part... /Anders

12 years, 5 months

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Vintage Sun systems available (Jules Richardson)

by michael.99.thompson＠gmail.com

> > From: Jules Richardson <jules.richardson99 at gmail.com> > Date: Fri, 07 Mar 2014 14:53:28 -0600 > Subject: Re: Vintage Sun systems available > On 03/07/2014 12:27 PM, Lyle Bickley wrote: > >> 1. Sun 386i. Looks clean - opened it up >> > > You didn't happen to take a photo of the Roadrunner image on the inside of > the case, did you? I was looking for an example online the other week and > couldn't find one anywhere, which was surprising. > > cheers > > Jules > You didn't look here: https://sites.google.com/site/mthompsonorg/Home/sun-microsystems/sun-386i-d…

12 years, 5 months

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4004 Development System

by kylevowen＠gmail.com

Hi all, Does anyone have any interest in a modern 4004 or 4040 development system? I posted to the Vintage Computer Forum but didn't get a lot of interest there. It would be similar in functionality to an Intel Intellec 4, but will be smaller and will use a keypad with a hex display. I've got some rudimentary plans thus far, but don't really have an interest in continuing if there's not a community interest. Thanks, Kyle

12 years, 5 months

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FW: You have got to be kidding me

by robert.jarratt＠ntlworld.com

David, So where does one look for a VAX4000/600+ that is not on eBay (but, hopefully, in the UK)? Regards Rob On 11 March 2014 23:34, Robert Jarratt <robert.jarratt at ntlworld.com> wrote: > ------------------------------ > From: David Riley <fraveydank at gmail.com> > Sent: 11/03/2014 19:47 > To: General Discussion: On-Topic and Off-Topic Posts<cctalk at classiccmp.org> > Subject: Re: You have got to be kidding me > > On Mar 11, 2014, at 3:04 PM, Benjamin Huntsman < > BHuntsman at mail2.cu-portland.edu> wrote: > > > A VAXstation just sold on eBay for $2,021.51. > > I may be off my rocker, but that seems a bit high... :) > > > > > http://www.ebay.com/itm/DEC-Vaxstation-4000-90-VS49K-AB-CPU-KA49-May-Work-P… > > This has been bandied about on this list before. The 4000/90 is an item > on some important US DoD contract, so that specific model goes for a > premium because resellers know they pretty much have a guaranteed sale > for it. It's a shame for the rest of us, since the 4000/90 is a pretty > nice machine, but you can get a machine with equivalent performance in > the VAX4000/600+ range (those are the deskside towers, not to be confused > with VS4000). If you know where to look (not eBay), you can often get > those a LOT cheaper. > > VS4000/96 machines go for about twice what the 4000/90 machines do on > eBay. > > > - Dave > > >

12 years, 5 months

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You have got to be kidding me

by hp-fix＠xs4all.nl

Wow we're rich..! If a vaxstation does this what should a pdp11 do than.. -Rik -----Oorspronkelijk bericht----- Van: "Benjamin Huntsman" <BHuntsman at mail2.cu-portland.edu> Verzonden: ?11-?3-?2014 20:27 Aan: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Onderwerp: You have got to be kidding me A VAXstation just sold on eBay for $2,021.51. I may be off my rocker, but that seems a bit high... :) http://www.ebay.com/itm/DEC-Vaxstation-4000-90-VS49K-AB-CPU-KA49-May-Work-P…

12 years, 5 months

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PCjr web server test

by mbbrutman-cctalk＠brutman.com

This is just a little test so that the infamous PCjr can serve (most) of its own web site: http://67.185.176.54:8080/ That link has the main page, and it should look like my normal PCjr web site. This next link has some fun server status like memory available, DOS version, BIOS date, etc.: http://67.185.176.54:8080/proc/ You might find the TCP/IP statistics interesting. It's been running over 24 hours now. There are one or two links that are broken because I did not get all of the content moved over. Otherwise, it should work if you try it. The speed might not be great as it is a 4.77Mhz machine and multiple people can make requests at the same time, so be patient - it will catch up. Please, no saturation bombing - it is very easy to DoS this particular DOS machine. -Mike

12 years, 5 months

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Anyone need a 1GB narrow-SCSI hard disk?

by lproven＠gmail.com

Vintage 1GB narrow SCSI hard disk (DEC DSP3015) - formatted, tested & working http://www.ebay.co.uk/itm/271422359680 I have other auctions running for a working, upgraded Quadra 650, original (not chicklet) Apple wireless keyboard & mouse and more. I though the hard disk would be the most interesting to CCmp, though. -- 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, 5 months

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NeXT (and other equipment) firesale

by mokuba＠gmail.com

Unfortuantely, i'm looking to have to sell off a peice or two of equipment to fundraise a bit. I need to get rid of this stuff quick, preferably today or tomorrow. Paypal or cash in person accepted. The equipment is in Bel Air, MD. NeXT system (complete mono slab monitor and all) - $250 Sun IPX/LX/Classics varios configurations ad requested - make offers One each SLC and ELC available. old in box TI-99/4a unused/untested - broke the seal on the inner packaging to make sure all manuals were there. - offers requested. IBM RS/6000 B50 - probably annyoing/tricky to ship. $50 - 512MB ram and 2x9.1GB drives mounted and ready to go. NeXTstation color is available now, but will be pricier due to soundboxes/y cables/etc required to make use of that. Parts available but in extremely limted quantities. And other various odds and ends such as 13W3 cables, scsi cables, etc. This is a sampling of what's available - i'll add more if i can think of what's worth listing. Inquiries for anything else in my collection you might be interested in or wonder if i have - let me know. Something new, as well Dual Quad Xeon HP DL380 G5 with 10GB ram and 0 HDDs - $200 -- Gary G. Sparkes Jr. KB3HAG

12 years, 5 months

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Write TRS-80 Super Utility image to diskette?

by snhirsch＠gmail.com

Can anyone tell me how to write a .DSK (JV3) image of Super Utility 4 for TRS-80 Model IV to a real diskette? The image boots in my xtrs80 emulator, but it cannot copy itself. If I boot either TRSDOS 1.3 or LDOS 6, they do not recognize the image file as a valid disk. Sort of a Catch-22, yet I understand it is possible. Terry (Tez) appears to have done so based on his web site writeup, but it's unclear how the techniques mentioned (ImageDisk) apply to a non-standard JV3 image. I have the feeling the solution is obvious, for some definition of "obvious", but I'm not seeing it. Steve --

12 years, 5 months

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Help identify this terminal?

by legalize＠xmission.com

...or it could be a microcomputer. It has a pretty distinctive case: <http://user.xmission.com/~legalize/tmp/vintage/random_terminal.jpg> -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://ComputerGraphicsMuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://LegalizeAdulthood.wordpress.com>

12 years, 5 months

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Unitron U2000/Linden Keyboard

by brad＠bettercomputing.net

Hi there, I am looking for photographs or replacement parts for a Unitron U2000/Linden Series One keyboard. It was working however in doing some testing with it I think it blew the controller chip, which is a 2732 EPROM. I've changed all the other chips with no success. Was hoping to find a reference photo just to make sure I haven't messed anything up, or if possible a dump of the controller ROM. Not urgent but hoping to get this running again someday soon. Basically right now nothing works except CTRL-RESET Thanks!! Brad

12 years, 5 months

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PDP-8a Restoration/RL01 issues

by tiggerlasv＠aim.com

> So I put in the RL8A disk controller (M8433) and connected the cable > to one of the drives at a time. Also connected the terminator on the > drive. What type of cable are you using? I have seen two different styles of cable - 1.) Controller-to-drive. Cable goes directly from controller into the drive itself with no bulkhead connector. (RL connector on one end, berg connector on the other end) 2.) Controller to bulkhead adapter, then standard RL cable from bulkhead adapter to drive. Ribbon cable goes from controller to an intermediate (bulkhead) connector. (Bulkhead piece has a berg connector on one side, and an RL connector on the other.) If memory serves, and you are using the bulkhead style intermediate connector, an incorrectly pinned ribbon cable could produce similar results. I don't recall if the ribbon cable is pinned straight through, or if one of the connectors is flipped. Just a thought. T

12 years, 5 months

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cctalk Digest, Vol 127, Issue 13

by isking＠uw.edu

> > Date: Sat, 08 Mar 2014 12:29:41 +0000 > From: anders at abc80.net > To: cctech at classiccmp.org > Subject: Re: PDP-8a Restoration/RL01 issues > Message-ID: > <20140308122941.Horde.9d9EcJ0ZUHxRqnL8YaU7-g5 at blue.abc80.net> > Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes > > Just a small update about what I have found so far. > > 1. The "FAULT" lamp on one of the drives was broken. > 2. The solenoid on the other was jammed. This means that both drives > behaves the same. > 3. There is no clock present from the controller. > > Have to fix the controller first. > > /Anders Re: PDP-8a Restoration/RL01 issues Be sure you have the Berg connector on the controller oriented correctly. You won't break anything if you don't, but the clock won't get to the drive, as you're seeing. -- Ian -- Ian S. King, MSCS ('06, Washington) Ph.D. Student The Information School University of Washington Madness takes its toll - please have exact change.

12 years, 5 months

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HP 9000/375, HP9121D and NetBSD

by supervinx＠libero.it

Hi! I managed to netboot NetBSD 6.1.3 in my HP 9000/375. Its external HD shows major failure (PCB, I suspect), so no local disk by now :( After some repairs, the 9121D passes all tests (confidence, and the ones performed setting HPIB address and shorting the J7 test pin). But when I connect it to the 375, I don't see the 9121 in the initial hw list and I've not been able to figure out how to address it with NetBSD. 1) The SCSI/HP-IB and the HP-IB ports are equivalent? 2) The 9121 must be set to some "special" HP-IB address? 3) On the processor card, under the SCSI/HP-IB port, there's a 50pin connector, which looks like a SCSI-50. Can I connect there a standard SCSI disk? Thanks! -- Retromuseum: http://www.supervinx.com/Retrocomputer You can reach me at: http://www.youtube.com/supervinx http://www.myspace.com/supervinx http://www.facebook.com/supervinx

12 years, 5 months

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PDP-8a Restoration/RL01 issues

by anders＠abc80.net

Just a small update about what I have found so far. 1. The "FAULT" lamp on one of the drives was broken. 2. The solenoid on the other was jammed. This means that both drives behaves the same. 3. There is no clock present from the controller. Have to fix the controller first. /Anders

12 years, 5 months

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Vintage Sun systems available

by lbickley＠bickleywest.com

A few days ago I was doing my usual scan of Weirdstuff's inventory and came across the following vintage Sun system: 1. Sun 386i. Looks clean - opened it up - memory and HDD controller present - no SCSI HDD. 2. Multiple Sun-4 systems, part number 600-2157-01, Model 247. OEMed and labeled "CADNET IX". I did not open them up - but look quite clean from the outside. If you are interested in any of these systems, email me privately and I'll give you the contact at Weirdstuff. Note: My only relationship with Weirdstuff is as a client and I do not receive compensation for any item I mention on this list. I do this to preserve vintage systems from being scrapped. Regards, Lyle -- Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

12 years, 5 months

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PDP-8a Restoration/RL01 issues

by anders＠abc80.net

>> ? >> So I put in the RL8A disk controller (M8433) and connected the cable ? >> to one of the drives at a time. Also connected the terminator on the ? >> drive. >> ? >> The first drive that I tested turned on the "READY" light, then ? >> nothing more happened. I was able to open the drive immediately. > > That does not sound right. You do mean 'ready' -- the one with the drive? > number on it? ?A Drive should only be 'Ready' when it's spun up to speed,? > the heads have loaded, and the head servo has locked.? Yes, the white indicator with either a "0" or a "1" on it! It didn't feel right. >> ? >> How much of this depends on a working controller (RL8A)? > > Just about all of it. The drive needs a clock signl from the controller? > even to do things like check the motor is n't truning (which is necessary? > before the cover unlocks). If the clock is missing, the 'Fault' light? > comes on, but of course there are many other causes for this. > About the cover, when should it be unlocked? Is it open when the power is off (I suspect that it should be locked)? The thing is that the cover is always unlocked on one of the drives, on the other drive it seams like it's locked when the power is off. > It's been some yers since I've been isnde an RL, but I would start by? > checkign all the indicator bubls (you do not want to be getting false? > information becuase of a burned-out bulb!). Then, IIRC, the 'Fault' lamp? > is drven by the logic OR of a lot of signals (I seem to revcall active? > low signals and a '30 NADN gate here). If the Fault light is on, then see? > whic signal(s) is asserted, and trace back from there. I will check the bulbs and then check what errors that have been asserted. /Anders

12 years, 5 months

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Announcing OPCON for SIMH 4.0

by quapla＠xs4all.nl

Do you remember the realcons interface based on Henk Gooijens core-I/O board a few years ago? If so, read on! I have rewritten Henk's realcons software (and Henk made a new eeprom for me) for SIMH v4.0 and named it OPCON (OPerator Console). The original software was based on counters who's settings needed to be tested based on the cpu processing speed, OPCON uses SIMH's event timer queue to control the updates send to the external console and is therefor not depending on the cpu speed. OPCON is also more in line with SIMH's command structure, so one can use 'attach oc connect=ser0' for example to a) active the device, and b) to specify which serial port to use. Speed is always 9600-8N1. Try 'help oc' or 'help set oc'. With 100 updates per second the console does show the data and does interact pretty well with the simulator. I have had the simulator running for several hours continuously, and no crashes did appear until now. Currently tested only on Unix/Linux, not on windows, although it should work. For now, the modified SIMH files and the software can be downloaded at www.groenenberg.net/download/OPCON. The zip file can be used as a drop-in replacement of your own source code set you pull from github. Some pics can be found using the same link, and 2 small video's are OPCON for the 11/45 : http://youtu.be/qfLkMfLMZVE OPCON for the 11/70 : http://youtu.be/MpuCwFmOEms Looking forward to receive suggestions and to hear about problems or possible code fixes. Enjoy, Ed -- Dit is een HTML vrije email / This is an HTML free email. Zeg NEE tegen de 'slimme' meter.

12 years, 5 months

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Hard drive air filter overhaul and construction

by nf6x＠nf6x.net

I have a few DEC RL02 drives, and a Data General drive that uses a pack that appears physically identical to the RL02 packs other than a different sector pulse ring. I haven't begun the process of bringing any of them up yet, but I've removed the air filter from the Data General drive to look at it. It looks like a standard style of HEPA filter, with filter media zigzagged around wavy aluminum spacer plates and then mounted in a plastic box. It looks quite gray on the input side, and he label suggests it was last replaced in the mid to late 1980s. I assume that NOS filters for these drives aren't just laying about in piles, and even if they are, a time will come when there aren't any spares to be found. Thus, I'm interested in what it would take to overhaul existing filters and/or fabricate new ones from scratch. First of all, I assume that it's not practical to clean the existing filter media very thoroughly. If I'm mistaken, then I'd like to know that. It seems to me that I should be able to rebuild a filter like the one in my DG drive assuming that A) I can get it apart without breaking the housing (may not be possible if the edges of the media is strongly glued to the housing?), and B) I can obtain suitable bulk HEPA filter cloth to use. Even if the housing can't be disassembled nondestructively, I might be able to reuse the aluminum spacer plates at least. By the same token, it should be possible to construct new filters from scratch as long as the bulk HEPA filter cloth is available. So, what have other folks already done in this area? Are there suppliers of bulk HEPA filter cloth who would sell in the small quantities that a hobbyist would need? Maybe suitable filter media can be harvested from off-the-shelf items like automotive air filters? -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/

12 years, 5 months

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Commodore 16 and Plus/4 added to the collection

by terry＠webweavers.co.nz

For those who might be interested... These are not what I would call classic micros but they do represent a bit of home computing history. They are now part of my collection and I've introduced them as such in the link below: http://www.classic-computers.org.nz/collection/c16-and-plus-4.htm Terry (Tez)

12 years, 5 months

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MFM disassembly (was Pack cleaning (was: Re: Convert PDP-11 RK05 disk pack to PDP8))

by js＠cimmeri.com

Subject: Re: Pack cleaning (was: Re: Convert PDP-11 RK05 disk pack to PDP8) From: Kyle Owen <kylevowen at gmail.com> Date: Wed, 5 Mar 2014 18:39:43 -0600 To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> <<In fact, a while back, I fixed an MFM hard drive from an IBM PC/AT in the cleanroom. Completely dismantled the platters from the spindle, put it back together, and got several more months of service out of it, until it wouldn't spin up on its own (had to kick-start it). >> Kyle, that's really neat. Would you tell more about how you got the platters out? Were you able to lift the heads off the platters before retracting them, or were you simply able to slide the heads across the platters, and off the platters? Thank you, John S.

12 years, 5 months

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PDP-8a Restoration/RL01 issues

by anders＠abc80.net

> Date: Wed, 5 Mar 2014 20:37:57 -0500 > From: David Gesswein <djg at pdp8online.com> > To: cctech at classiccmp.org > Subject: Re: PDP-8a Restoration/RL01 issues > Message-ID: <20140306013757.GA8832 at hugin2.pdp8online.com> > Content-Type: text/plain; charset=us-ascii > > On Wed, Mar 05, 2014 at 09:32:02AM +0000, anders at abc80.net wrote: > >> How much of this depends on a working controller (RL8A)? >> > I haven't gotten to getting my drives working so can't give first hand > info. From previous postings the drive needs the clock from the controller. > Ok, I see. I have now found the 8,2MHz clock generator on the RL8A-controller, to check that must be a good start. Then the line driver circuitry so the clock shows up in the drive. > >> For a start i would like to run the controller diskless controller >> test, AJRLAAO. Then the AJRLBAO/AJRLCAO drive test. I have searched >> the net after those but haven't found any sources. I wander if >> anybody have those and the documents on them? >> > No good scans appear to be available. January posting with link to > photos from my fiche viewer. I have the full set but no easy way to > scan. I can take more pictures this weekend if you find you need them. > http://www.classiccmp.org/pipermail/cctalk/2014-January/155010.html > > My fiche are for newer revisions than the binaries I have. You can > download .bn tape image by clicking on the more link on this page for the .dg > http://www.pdp8online.com/pdp8cgi/os8_html?act=dir;fn=images/os8/diagpack2.… > Thanks, I will try to run the diskless test during the weekend and I'll see what that might give. >> Then what else should I do? >> >> From my RK05 work clean drive and heads and inspect/clean pack. Hopefully > people more familiar with RL01 will chime in. Do RL drives have bad foam > that needs replacing? > > If you get the system up and the pack have interesting contents I would like > to get a dump at some time. I started working on a dump/restore for RL > packs but it hasn't gotten tested since I didn't have a working system > and the person I was working with didn't try it. I should be able to get > it running after VCF in early April. > http://www.pdp8online.com/ftp/software/dumprest/ Now I got some more things to try and this will probably help me to get a bit further. When I get the system up I'll try to make the content availabe if possible. /Anders

12 years, 5 months

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PDP-8a Restoration/RL01 issues

by anders＠abc80.net

> Date: Thu, 6 Mar 2014 01:05:54 -0500 > From: Ethan Dicks <ethan.dicks at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: PDP-8a Restoration/RL01 issues > Message-ID: > <CAALmimmGTKGksHJiqbo+TQV12pw2J7QEbEPZexc+bPCG+4-_Eg at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On Wed, Mar 5, 2014 at 8:37 PM, David Gesswein <djg at pdp8online.com> wrote: >> Hopefully >> people more familiar with RL01 will chime in. Do RL drives have bad foam >> that needs replacing? > > I don't remember any major foam issues, certainly nothing like the > RK05. There is usually some coarse foam at the front of the drive, in > front of the HEPA filter, but that's quickly removed and cleaned. The > insides are foam-free IIRC. Lots of hard surfaces to wipe down for > dust, though. I'd certainly do that, including swabbing the tubes > behind the HEPA filter if the drive has been stored for a long time > and you see dust in the pack area (less crud for the HEPA filter to > suck up). Yes, those drives needs a cleaning for sure. They where actually much cleaner inside than I expected. > >> If you get the system up and the pack have interesting contents I would like >> to get a dump at some time. > > One does not require a PDP-8 and RL8A to back up an RL01 or RL02 pack. > Any machine can make a block-for-block image copy. It's one command > on VAX/VMS ($ BACKUP/PHYSICAL). If you have another system and > interface, that might be easier than dealing with a medium that's 2.5 > times the max size of an OS/8 device. > > -ethan Intressing, but I don't have any more modern DEC running. I have a micro PDP11/73 with an RL controller though, but that have not been running for ten years at least. /Anders

12 years, 5 months

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PDP-8a Restoration/RL01 issues

by anders＠abc80.net

Hi, My restoration project continues, after fixing power supply and some issues with the DKC8A (Option #1) the machine now passes the CPU test and the memory test (machine is now equipped 32k core). The setup of the machine is minimal: - PDP8A CPU, KK8A, M8315 - Option #2, KM8A, M8317 - Option #1, DKC8A, M8316 - Core memory DATARAM Corp. 16k*12 (field 4-7) - MM8AB, 16k core (field 0-3) So I started on the RL01 drives. Since I never had used those, I don't now how they should work. I'm learning those things from the manuals... So I put in the RL8A disk controller (M8433) and connected the cable to one of the drives at a time. Also connected the terminator on the drive. The first drive that I tested turned on the "READY" light, then nothing more happened. I was able to open the drive immediately. The other drive that I tested turned on the "READY" and the "FAULT" light, then nothing more happened. I was able to open the drive immediately. I opened this drive up (unscrewed the lid) and noticed that the spindle motor rotated slowly for 10 seconds when i powered up the drive with a cartridge in it. I also measured the voltage on the power lines and got this: 5V: 5,1V 8V: 7,7V -8V: -7,9V Ureg: 15,5V -Unreg: -15,2V Which should be fine according to the "Rl01/Rl02 Technical Manual, Volume 11-Service Procedures" What I have read in the manuals is that the drives should behave like this: 1. Power on, no lights should come on. 2. After a while the load light should illuminate. Now it should be possible to open the lid and load a cartridge (and place the protection on the top). 3. Close the lid and press "LOAD". Load should now go out. 4. The drive should spin up and read the servo data. When done the "READY" should illuminate. How much of this depends on a working controller (RL8A)? For a start i would like to run the controller diskless controller test, AJRLAAO. Then the AJRLBAO/AJRLCAO drive test. I have searched the net after those but haven't found any sources. I wander if anybody have those and the documents on them? Then what else should I do? /Anders

12 years, 5 months

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Convert PDP-11 RK05 disk pack to PDP8

by bobvines00＠gmail.com

> Date: Wed, 5 Mar 2014 18:41:30 -0600 > From: Kyle Owen <kylevowen at gmail.com> > On Wed, Mar 5, 2014 at 3:42 PM, Paul Koning <paulkoning at comcast.net> wrote: > >> >> On Mar 5, 2014, at 3:08 PM, Tony Duell <ard at p850ug1.demon.co.uk> wrote: >> > ... >> > You don't ahve to mechanically balance it as well. Of course just >> > centring the disk accurately is non-trivial... >> >> What's the required accuracy? With some patience and an inexpensive dial >> indicator, centering to .001 inch (25 micrometers) is doable; lathe >> operators do it all the time with their 4 jaw chucks. > > > What about using an inspection microscope over the disk surface to visually > align it? I imagine you could get a bit more precision this way, perhaps. > > Kyle For ~$50+ (U.S.) you could get a 0.0001-inch capable test indicator off of eBay. Or spend ~$300 for a Starrett (or equal). (Plus the cost of an indicator holder.) Bob

12 years, 5 months

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Kodak CDL-144?

by nwfilardo＠gmail.com

Hey all, I am not sure if this is the right place to ask (please flame gently if not), but: I have an old Kodak LifeSciences SCSI CD Library (model CDL-144) and haven't been able to find out very much about it. The robot component responds to the standard SCSI changer commands (as issued by, for example, mtx-1.2.18, but not mtx-1.3, AFAICT) and the drives of course open and close in response to the standard eject command, but I have not been able to figure out how to do useful things like open the mail slot, set the password, or dump (or update, if only I had an image!) the firmware over the SCSI bus. The only manual I've ever found online is just the "getting started" guide and points to kodak.com for more, but of course that's no longer around and even the wayback machine hasn't been that useful... thus this plea for anyone who knows anything about the device to share, even if off list. Thanks much in advance, --nwf;

12 years, 5 months

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A nice DEC and VAX stations (&related items) price list

by stephane.tsacas＠gmail.com

Hi, I don't think this link has been published here before, I just found it and think it can be useful : http://stuff.mit.edu/afs/net/user/tytso/archive/price-lists/dec.price-list.… -- Stephane FreeDonne <http://www.freedonne.org> Join FreeDonne - Rejoignez FreeDonne.

12 years, 5 months

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SS-50 DS68 6847 Video Board

by kylevowen＠gmail.com

Hi all, Does anyone have any documentation for this Data Systems 68 6847 video board? I should have most of the parts to build it up. I'm going to get a good, high-quality scan of the PCB, front and back, before I do that though. http://i.imgur.com/JLJqsdx.jpg http://i.imgur.com/vmE916Z.jpg Looks related to the 6845 variant, but I imagine this 6847 board has more graphical capability. http://www.swtpc.com/mholley/DS68/VDB_Index.htm Thanks, Kyle

12 years, 5 months

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Write TRS-80 Super Utility image to diskette?

by tim＠tim-mann.org

On Steve's SU4 copying saga, it sounds like Steve had the copy-protected, self-booting SU4, while Terry has a non-copy-protected one. Both existed. I have the non-copy-protected version available for download on http://tim-mann.org/misosys.html#down, as a /cmd file that you would have to import onto a TRSDOS or LDOS 6 disk, say with an emulator utility. Once you import it, this is the easiest version of SU4 to deal with. I also have a copy of a preliminary version of the self-booting SU4 (from Kim Watt's personal collection). I've never seen the final released version. My notes say that I successfully copied this version to DMK (using a Catweasel and cw2dmk) and it worked in xtrs. My notes also say that it was not representable as JV3. So a copy-protected SU4 that works as a jv3 but can't be copied to dmk by jv2dmk sounds like a really odd duck. I would be interested in a copy of that jv3 to see what it is and why jv2dmk doesn't work on it -- would also like to know where it came from. --Tim

12 years, 5 months

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

by gerhard.kreuzer＠liftoff.at

Hi, please, count me in, thanks. Gerhard

12 years, 5 months

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HP-UX 9.x sources

by supervinx＠libero.it

Hi! I know it shouldn't be done :) I don't have any installation media for HP-UX 9.x or older. I have a disk image with HP-UX 9.03 installed, coming from an HP 9000/425t, and it worked (after minor tweaks) on my HP 9000/375. Now I'm recompiling the kernel, since some drivers are missing. I'm lucky, that image has a C and a Fortran77 compiler installed. Do you know if some HP-UX 9.x (or earlier) images can be found? I'd accept also DDS-x or QIC tape images... Thanks!

12 years, 5 months

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Locking heads on Memorex 214 drives?

by derschjo＠gmail.com

Hey all -- Recently got myself a system equipped with a Memorex 214 hard drive. The system's going to be shipped to me eventually, and I'd like to take precautions to avoid damage during transit. The 214 looks to be an 8" drive, so it almost certainly requires a special procedure to lock the heads and/or spindle. Does anyone know what the procedure is for this drive? (I need something simple and clear enough for the seller to deal with...) I found the 112/114 manuals on Bitsavers, but I don't know if these are similar enough to the 214 to be relevant. I can't find much on these drives at all. (I'm also assuming the official procedure will require getting the heads to a safe "parked" position, which is not likely to be possible given the state of the machine (i.e. unknown running condition). Am I making things worse by locking the heads at some random position?) Thanks in advance, Josh

12 years, 5 months

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Choosing a Digilent JTAG Programming Cable

by elson＠pico-systems.com

On 03/04/2014 10:58 AM, cctalk-request at classiccmp.org wrote: > I need to buy a JTAG cable for programming a Spartan 3 and a Spartan 6 FPGA. > I already have this one: I got a Digilent at work, and had a lot of trouble getting the drivers installed and working on Linux. Later, for home, I got what claims to be an official Xilinx Platform Cable USB on eBay, from a Chinese supplier. It was much easier to get it running, and it has programmed everything I've tried it on. I make a number of boards that use Xilinx CPLDs and FPGAs, from the original 5V Spartan and 9500 to the Spartan 3A and 3AN, 9500XL and Collrunner II, and it has programmed all of them perfectly. I have no idea whether these are really unauthorized clones or official Xilinx products, but I can say they work, and are relatively cheap - cheaper than the Digilent. Jon

12 years, 5 months

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

by bobvines00＠gmail.com

I'm interested in Vince's kit version of the 32KW RAM board. Bob

12 years, 5 months

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Unknown Omnibus Boards

by kylevowen＠gmail.com

Hi all, I'm trying to identify some boards out of a PDP-8/E. Any info would be appreciated. http://imgur.com/a/oJQZ5 Thanks, Kyle

12 years, 5 months

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