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

Mid-1970s Pictures Posted

by bobvines00＠gmail.com

> Date: Sun, 27 Apr 2014 16:57:52 -0500 > From: Kyle Owen <kylevowen at gmail.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: Mid-1970s Pictures Posted > > Those are great! Thanks for sharing. In a similar vein, I scanned some > photos from Auburn University, ca. early 1980s. > > http://imgur.com/a/Kwnn9 > > Kyle Kyle, It's a shame that you only had photos from the (relatively) "official" computers at Auburn, primarily EE & (I guess) the Main Computer Center over in the Math & Science Building. As an ME, I didn't get to see or use any of the systems in your photos, but got hooked on "Blinkenlights" when I was able to use Dr. Bussell's DG Nova 1220 (in ~1981-82) with an ASR-33 and some type of Tektronix terminal along with disk cartridge drives, pretty much as a "personal computer." It was "hidden" in a closet in the old Mechanical Lab building. Having access to that system as a "personal computer" sure beat the hell out of lining up at the Computer Center to try to use a terminal, especially once the basic programming classes graduated to FORTRAN (which brought the systems to their knees due to 30-40 students all trying to run/debug their FORTRAN programs at the same time ;) . Because of that Nova 1220 experience, I've been infected with collecting and trying (also as a non-EE) to restore old computers, mostly PDP-8 family members, with a few Q-Bus PDP-11s, a VAX 4000-200, a Commodore 64, a TI99/4A, a Sinclair (I think), an Apple III (I think), a TRS80 Model III, a Canon BX-1, and various PC clones from the early '80s almost to today. Along with an ASR-33, an LPQ01 (I think), an RK-05, a half-dozen RL01/02s, a couple dozen disk packs, and a half dozen RX01/02s, literally thousands of 5.25-inch, a few-hundred 3.5-inch, & about a hundred 8-inch diskettes. Perhaps one of these days, I'll be able to rearrange my workshop to have room to take decent photos of my collection too. Bob

12 years, 2 months

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BERG connectors for DEC cables?

by tiggerlasv＠aim.com

On Sat, Apr 26, 2014 at 12:26 PM, Jack Rubin <j at ckrubin.us> wrote: > I've asked this before but it seems like time to ask again. I'd like to > make some _proper_ DEC-style cables with round shielded cable and true BERG > headers on the end(s). I know that IDC connectors can be used as a > substitute but I'd really like to be able to find the old crimp-pin and > insert style. Does anybody have a source or even a non-DEC part number for > the header box and/or pins? Note that it is actually a 44-pin carrier to > center it in the 40 pin receptacle. A few different manufacturers still produce them, including FCI, and Molex. Both Mouser, and Digikey carry them. Here is the Mouser link for the 44-pin housing -- Is this what you're looking for? http://www.mouser.com/ProductDetail/Molex/22-55-2442/?qs=f4rpoa%252bd1nHknk… T

12 years, 2 months

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Recreating a Dial In ISP with Sun Sparc and HP PA RISC Hardware

by slandon110＠gmail.com

My summer project is to recreate dial in shell access like we all used to. I have 2 machines that are candidates for it. an HP 712 system running HP UX 9.04 and a Sun Sparcstation 5 running Solaris 1.1.2. For PPP access I can set up a linux box as well. Anyone ever thought of doing this or how it could be accomplished?? Thanks Steve

12 years, 2 months

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FS: Lantronix UDS 10 NIB & some other goodies

by slandon110＠gmail.com

Getting rid of my never used Lantronix UDS-10 which is New in box. Asking 35 shipped anywhere in the USA PayPal accepted 10 BBS Telecom Plexus PVT-30D Key Telephones. Used with the Macro Plexus PBX system $35 each shipped in the USA Codex 5280R Leased Line Modem 4800 Baud. Really nice shape. Powers up $50 shipped in the USA

12 years, 2 months

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Another new computer lab...

by derschjo＠gmail.com

Since others have been sharing their new digs, I thought I'd share mine. I moved a couple of months ago to a much larger house with a semi-finished (and dry) basement. (As you can tell from the photos, the refinishing was done sometime in the 1970s :)). Previously I had about 200 square feet of space, now I have more like 900-1000. Not quite as impressive as Guy's or Henk's, but I've managed to fit all my stuff in with room for future expansion... Just this week I got the last of the stuff out of my 10'x10' storage unit and I've gotten everything approximately where I want it, modulo a few boxes here and there. One thing I've discovered now that everything's under one roof: I have way too many keyboards... This link should work; let me know if you can't get to the album: https://plus.google.com/photos/117997069161125071032/albums/600649153384065… - Josh

12 years, 2 months

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Another new computer lab... (Henk)

by michael.99.thompson＠gmail.com

> > -----Oorspronkelijk bericht----- From: Josh Dersch > Sent: Saturday, April 26, 2014 9:14 AM > Subject: Another new computer lab... > > Since others have been sharing their new digs, I thought I'd share mine. > I moved a couple of months ago to a much larger house with a > semi-finished (and dry) basement. (As you can tell from the photos, the > refinishing was done sometime in the 1970s :)). Previously I had about > 200 square feet of space, now I have more like 900-1000. Not quite as > impressive as Guy's or Henk's, but I've managed to fit all my stuff in > with room for future expansion... > > Just this week I got the last of the stuff out of my 10'x10' storage > unit and I've gotten everything approximately where I want it, modulo a > few boxes here and there. One thing I've discovered now that > everything's under one roof: I have way too many keyboards... > > This link should work; let me know if you can't get to the album: > > https://plus.google.com/photos/117997069161125071032/ > albums/6006491533840656273 > > - Josh > I see a Sun 2/120 in the collection. I have one with the additional SMD disk tower and a 2/50 diskless client. -- Michael Thompson

12 years, 2 months

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In the name of the King (Unibus sale)

by sander.reiche＠gmail.com

It's the birthday of our king here in the Netherlands and, as per usual, there were flea markets all over the country yesterday (nowadays called King's Day, instead of Queen's Day :)) and all of my "Big Iron" is hoping to find a good new home. * PDP-11/84 with the following cards: --M7677-YA Monitor and Distribution Monitor --M8190-AE KDJ11-B 11/84 CPU --M8637-EF (MSV11-JE) 2MB RAM --M8637-CF (MSV11-JC) 2MB RAM --M8191 (KTJ11-B) PMI UNIBUS Adapter (UBA) --M8256 (RX211) RX02 Floppy Drive Controller --M7762 (RL11) RL02 Disk Controller --M7521-AA DELUA-AA Ethernet Card --M3105 (DHU11-A) 16-line async MUX * PDP-11/10 with 4kW and an additional untested 4kW * 3x RL02 + 15x RL02 packs * 1x RX02 plus some floppies (~20) * 1x Cipher M995. This one is in bad shape, needs to become a project to get working again, I think. Comes with some tapes with unknown content. * 2x Teletype ASR33, one on stand, one without, both without confetti-catcher. * Half height 19" digital rack, usually called a "corporate cabinet" (ex HSC90) * 2x VT420 * 1x VT520 * 1x HP 700/96 terminal Local pickup in Netherlands greatly preferred as this is mostly unshippable stuff. Offers via direct mail, please. With kinds regards, Sander Reiche

12 years, 2 months

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Overland Data OD3210 error codes?

by js＠cimmeri.com

>> >> ... >> >> I've an Overland Data OD3210 (without manual) that was working until >> recently, when now I turn it on and the front panel lights are as >> follows: >> >> Alert: brightly blinking red >> Load: solid green >> Unload: solid green >> Online: solid green >> Wrten: solid green >> 1600 & 3200: very faintly flashing green (LEDs are ok) >> Power: solid green > > According to my little guide, if the 1600 LED isn't lit, this > corresponds to a "Door open" error. > > All LEDs on, with Alert blinking says there's a power failure issue. > > One thing that gave me trouble with my 3210 was that the foam in the > drive lid degraded and developed an air leak so that the loading > process didn't work. Replacing the foam fixed that. > > If I were to guess, I'd say that you've got a power supply problem. > Perhaps a need to re-cap? > > Mostly from memory here--it's been years since I've used the drive. > > --Chuck Chuck, the foam is good. Here's what happens on power up: Push power button.. power LED *only* immediately comes on along with the door solenoid doing a test "clunk". Six seconds of blank panel, then the LEDs light up as I described above... so the CPU seems to be executing a POST which then fails. I'm wondering if the door open optical sensor on mine went bad. Not sure if you have access to yours, but if you turn yours on with the door held open, what kind of LED display do you get? Thanks very much, John

12 years, 2 months

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Overland Data OD3210 error codes?

by js＠cimmeri.com

Hi. Does anyone have the manual (with front panel lights error code table) for an Overland Data OD3210, *or* a working OD3210 that they'd like to sell? I've an Overland Data OD3210 (without manual) that was working until recently, when now I turn it on and the front panel lights are as follows: Alert: brightly blinking red Load: solid green Unload: solid green Online: solid green Wrten: solid green 1600 & 3200: very faintly flashing green (LEDs are ok) Power: solid green Thanks very much, John Singleton

12 years, 2 months

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Overland Data OD3210 error codes?

by js＠cimmeri.com

> Subject: > Re: Overland Data OD3210 error codes? > From: > Chuck Guzis <cclist at sydex.com> > Date: > Wed, 23 Apr 2014 12:53:54 -0700 > To: > General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > > To: > General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > > > On 04/23/2014 12:29 PM, js at cimmeri.com wrote: >> I've an Overland Data OD3210 (without manual) that was working until >> recently, when now I turn it on and the front panel lights are as >> follows: > > Mine isn't within immediate access, but isn't there a little > pull-out-guide to this stuff under the front panel? > > --Chuck Hi, Chuck! No, unfortunately, on my unit, there's neither under-front-panel-guide nor a slot for one. Kelly Leavitt of MARCH had one of these /with/ manual that was given away, so I'm also hoping that the recipient might see this post. - John

12 years, 2 months

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FREE 9-track VAX tapes

by kspt.tor＠gmail.com

On 24 April 2014 22:56, Liam Proven <lproven at gmail.com> wrote: > On 25 March 2014 05:02, Tor Arntsen <kspt.tor at gmail.com> wrote: >> Just for the record (in general terms) I also have a 9-track drive >> which I use to read old tapes, including VAX tapes. >> Location northern Norway - although I'm not there all the time. > > > Well, you are closer than the USA! > > Would you like me to send them to you for you to try to recover the contents? > > I need to get them sent TOMORROW, i.e. Fri 25th, please. Current plan > is to leave the country on Tuesday. Sure - although I'm not home until May 1. You could send the tapes to my company address, that's where I keep the CCT drive and equipment anyway. I'll send you the address by private email and you can decide what you want to do. -Tor

12 years, 2 months

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FREE 9-track VAX tapes

by kspt.tor＠gmail.com

On 24 March 2014 23:08, Dennis Boone <drb at msu.edu> wrote: >> TEXAS INSTRUMENTS INC >> TMS32010 VAX CROSSWARE PACKAGE REL 2.3 >> 1600BPI, FORMAT = VAX/VMS 3.0; BACKUP >> LABEL = ASM3, SAVESET=ASM3.BCK, LINKER.BCK >> >> TEXAS INSTRUMENTS INC >> TMS32010 SIMULATOR REL 1.6 >> 1600BPI, FORMAT = VAX/VMS 3.0 BACKUP >> LABEL = SIM4320 SAVESET=SIM320.BCK >> TMDS32402110-08 03/13/86 >> >> [illegible, possibly 3011 or 5011] >> 1600bpi >> RABBIT-4 V1-0 >> BACKUPSAVESETS: SELECT.BCK >> R4.BCK > > Well, I'm guessing you can find someone closer to read them, but I'd be > happy to do so. Michigan, USA. > > De Just for the record (in general terms) I also have a 9-track drive which I use to read old tapes, including VAX tapes. Location northern Norway - although I'm not there all the time. -Tor

12 years, 2 months

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FREE 9-track VAX tapes

by lproven＠gmail.com

Also on offer for nothing - please save them from being thrown away! Description from the old ended listing: -- 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, 2 months

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Lobo Max-80 Question

by billdeg＠buzz1.com

> > Any further luck? You have my curiosity. Been trying to get any HD > > to work with my Max80. Was considering bidding on a XEBEC 1410A but > >not sure if that will work or not from your description. SASI > >controllers are a bit hard to find at this point in time. My plan is > >to try to get one to work with LDOS and perhaps CP/M at some point. > >We should keep in touch. <snip> > CP/M is working perfectly, but I have no idea if the Lobo port of LDOS ever > supported hard disks. I haven't been able to find even a shred of documentation > about LDOS on Lobo. Only got as far as booting an 80-track DS/DD diskette. LDOS 5.3.1 will work on the Max 80, but not 5.1. Billdeg

12 years, 2 months

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Andy Warhol works on Amiga Floppies found

by pontus＠Update.UU.SE

Hi I suppose I'll be one of many posting this. But this was pretty fun for Amiga and Art afficionados: http://studioforcreativeinquiry.org/events/warhol-discovery /P

12 years, 2 months

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Re: Lobo Max-80 Question

by martin＠webtexas.com

Any further luck? You have my curiosity. Been trying to get any HD to work with my Max80. Was considering bidding on a XEBEC 1410A but not sure if that will work or not from your description. SASI controllers are a bit hard to find at this point in time. My plan is to try to get one to work with LDOS and perhaps CP/M at some point. We should keep in touch. Martin Sent from Windows Mail

12 years, 2 months

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Old "Word Processors"

by jon＠jonworld.com

All, My neighbor has a Cannon Softwriter Pro 5000. It's in like-new condition and is in a box, packed for shipping, ready to go. It seems to have a monochrome VGA screen, all books and accessories, etc. I remember someone saying they collected these kinds of things. Is this something you'd be interested in? Otherwise, it's off to the dump. Thanks! -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 2 months

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Greetings

by nigelc＠iinet.net.au

Hello everyone. My apologies for the double post - I wasn?t certain that I had posted correctly as it was before I had been sent an approval message. I?m enjoying your threads but honestly a lot of it goes over my head - I?m primarily interested in repairing early digital synthesisers, samplers and effects units for audio production. Anyhow, I just wanted to introduce myself and say that i?m enjoying (trying to) follow/ing your early computing banter. Cheers, Nigel

12 years, 2 months

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AT&T 3B2/V2 feature card issue

by alan＠alanlee.org

Hi, This evening I finally revived my 3B2/310 by re-installing SVR3.0 and most of the associated software modules. However I'm still having one problem. Feature cards I install in slot's 2, 3, and 4 always report their ID as 0x0. Thus the firmware isn't able to associated a card name with the ID via the edt table. The cards are good. If I place them in slot 0, they report fine. PORTS, PORTS/HPP, EPORTS all report 0x0 in slots 2, 3, and 4 while a StarLAN NAU reports ID 0xff in those slots. Anyone have an idea what might be going on? Thanks, -Alan

12 years, 2 months

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Documentation for TC08 random exerciser (TCRNAX.DG)

by cramcram＠gmail.com

Anyone have a pointer to the TC08 Random Exerciser (TCRANX.DG) that is on the OS/8 diagpack2.rk05? Thanks, Marc

12 years, 2 months

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Looking for qty 2 Blue IMSAI paddle/Switches

by marvin＠west.net

Surprising as I found it to be, they are still available along with some other IMSAI parts at: http://www.imsai.net/parts/parts.htm From: Nick Allen <mail.nickallen at gmail.com> > Willing to trade or buy them, let me know if interested, thnx!

12 years, 2 months

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Osborne Executive Exec-T Hard Drive Software

by vonhagen＠vonhagen.org

Hi. I'm looking for a copy of the Exec-T software from Gard Micro Systems that enables Osborne Executives with a hard drive to access and use the hard drive. My Executive has a Trantor hard disk, if that matters. I have the docs for Exec-T, but not the software itself. Exec-T includes the files CPM3.SYS, EIBIOS11.COM, EIFRMT11.COM, EIPOS11.COM, EICOPY.COM, MENU.COM, MENU.ASM, TSLCNFG.COM, DISKMGR.COM, ARKIVE.COM, WSKEY.COM, and CPMKEY.COM. I'd be glad to pay for a copy of the Exec-T software, and would be happy to get a copy of the disk or a disk image in ImageDisk or Teledisk format. of course, I'd also be happy to just get a pointer to somewhere that I can download it from ;-) Thanks for any help that anyone can provide! Bill

12 years, 2 months

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Eltec Eurocom ii V7

by nigelc＠iinet.net.au

Hi all, I'm desperately searching for an Eltec Eurocom ii v7 single board computer. If you have any leafs on where I could get my hands on one it would be much appreciated. Best regards, Nigel

12 years, 2 months

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Looking for qty 2 Blue IMSAI paddle/Switches

by mail.nickallen＠gmail.com

Willing to trade or buy them, let me know if interested, thnx!

12 years, 2 months

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FRTS on PDP-8 (ADVENT)

by rickb＠bensene.com

Kyle wrote: > I tried another version from here: > >http://www.rickmurphy.net/adventure.htm land it seemed to work just fine, > although for whatever reason, typing DIR results in "No room for output file." > I'm not sure exactly what it means by that; I don't get the same error from > running in simh. > > In any event, I can now run Adventure on my 8/M! I tried the version from the link above on my 8/e. I copied it using the OS8 Disk Server, from the RK05 image to an actual RK05 and ran it from there. My machine has 24K (8K core, 16K MOS), 2 M8650 serial interfaces, RK8E, PT8E, and RX8E. When I run ADVENT, it loads, but then just sits there in an apparent loop. If I type characters, nothing happens, except if I type CONTROL-C, it does exit back to OS/8. I've let it sit a few minutes, thinking that maybe it takes a bit to initialize, but that clearly isn't the case. I also tried the "R FRTS ADVENT.LD"<ESC> but with this, I get a $ prompt which appears to be coming from FRTS, and don't know what to do from there. I did try typing "SYS:ADVENT.LD" at the $ prompt, but it just comes back with another $ prompt. I do note that the INT BUS in is lit. This means that an interrupt is pending, but the ION state indicator is off. I have the serial interfaces set up to use interrupts if they are enabled. To get CHEKMO-II (which uses interrupts for I/O to the console) to run, I had to add some code to the interrupt service routine to ignore any pending interrupt from the second serial interface. Could the interrupt (output ready) from the second serial interface be causing this problem? I'd love to get Adventure running on the system. Thanks, -Rick Bensene The Old Calculator Museum http://oldcalculatormuseum.com

12 years, 2 months

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Z8671, INS8073 ROM dumps?

by spacewar＠gmail.com

I could use a dump of the Zilog Z8671 and National Semiconductor INS8073 masked ROMs if anyone has them. Those are the tiny BASIC in ROM versions of their single-chip micros. Thanks! Eric

12 years, 2 months

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Commodores "TED" machines

by terry＠webweavers.co.nz

Scorned, derided and dismissed but are they really that bad? My take on the Commodore 16 and Plus/4. http://youtu.be/TdItsJVLbws Terry (Tez)

12 years, 2 months

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PDP-8a Power distribution box schematics

by anders＠abc80.net

> From: skimsail <skimsail at aol.com> > To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>, > cctalk at classiccmp.org > Subject: Re: PDP-8a Power distribution box schematics > Message-ID: <9yw1v6ems88qir3x335bead9.1397869745456 at email.android.com> > Content-Type: text/plain; charset=utf-8 > > Hi there, > I've seen a similar problem and have a schematic that I can send you > in a day or two when I get to it. It may be due to leaky cap on the > back panel because the relay is actuated by 5v that oscillates. > Shaun > As I wrote earlier it was the cap. Here comes pictures after the refurbishment. http://www.abc80.net/docs/pdp8/pdp8a/DSC_2384.JPG http://www.abc80.net/docs/pdp8/pdp8a/DSC_2385.JPG /Anders

12 years, 2 months

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ALTMODE Key on Teleray Terminal

by kylevowen＠gmail.com

I was trying to start ADVENT again on my PDP-8, this time all with my Teleray 3511D terminal for a change (often I use minicom). I found that I could not escape to start the program. Instead, a '[' is printed, which is character code 133 octal. Escape is 033 octal. On minicom, things work just fine hitting the escape key on my keyboard. Is my terminal acting up? Is ALTMODE not defined as 033 on this terminal? Something else? If it's not acting up, any ideas how I can send a 033 from the terminal? Thanks, Kyle

12 years, 2 months

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FS: BN21V-OB DEC SCSI Y Cable & BA350 filler plate

by jtp＠chinalake.com

DEC SCSI Y Cable (HD50 M to two AMP 50 F) BN21V-OB Rev A02 Cable and connectors are undamaged $10 + shipping from 01888 (MetroWest Boston, MA, USA) The cable is about 10 oz, so under a pound with packing. And A standard brown 5 inch filler plate for BA350 for the cost of shipping. -Jim

12 years, 2 months

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Searching for Eurocom II V7

by nigelc＠iinet.net.au

Hello all, I?m desperately searching for an Eltec Eurocom II V7 single board computer. If any of you could pony me in the right direction it would be much appreciated. Best regards, Nigel

12 years, 2 months

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subscription issues with cctech?

by fjkraan＠xs4all.nl

Hi All, Is there an issue with subscribing to cctech? Since I disabled sending mail almost a year ago, the mail server dos not respond at all to my change requests or even subscription using another email address. The only way for me to see this message arrived at the list is looking in the archives... Fred Jan P.S. I tried mailing the administrator, but those messages probably ended up in the same black hole...

12 years, 2 months

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My patches for FreeBee to allow Unix to install and boot multi-user

by andreww591＠gmail.com

I have now released my fixes for FreeBee to allow Unix to install and boot to multi-user mode. They are against revision d91346487fe9 of FreeBee (the last to use the original version of the MMU emulation) and can be imported with hg import. The installer complains about the floppies not unmounting properly, but that doesn't seem to affect anything. Also, Unix doesn't reliably boot to the login prompt unless you remove .lpstartsched from /etc/rc (it's easy enough to do this with a hex editor). I'm not quite sure what the problem is. Starting the print server from the command line doesn't cause a hang, and the system never seems to access the parallel port when the print server is started (be it from /etc/rc or the command line). I think the hang might be occurring somewhere after the print server is started. Another issue is that the ROM won't boot the hard disk at the moment (which I think might have something to do with the head select). The only way to boot the hard disk is to boot from a floppy with a filesystem but no kernel. The install root floppy (NOT the boot floppy) works for this. The floppies are available from Bitsavers (IIRC they are in ImageDisk format, meaning need to be converted to raw format to use them with the emulator). As currently configured, the emulator is hardcoded to use a hard disk image that is 67108864 bytes in size. Patches: https://www.dropbox.com/s/iqjm4r7zfr9o7um/3b1emu-patches-new.tar.gz A few more screenshots: Desktop: https://www.dropbox.com/s/0jazyf5z1prz4bu/unix_3.51_desktop.png Desktop with terminal open: https://www.dropbox.com/s/32oevrc5bqvl0td/unix_3.51_terminal.png

12 years, 2 months

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Off-topic: Crowd-funding: ISEE-3 (International Sun-Earth Explorer) Reboot Project

by rdbrown＠pacific.net.au

This may interest some list members, http://www.rockethub.com/projects/42228-isee-3-reboot-project-by-space-coll… Our plan is simple: we intend to contact the ISEE-3 (International Sun-Earth Explorer) spacecraft, command it to fire its engine and enter an orbit near Earth, and then resume its original mission - a mission it began in 1978. ISEE-3 was rechristened as the International Comet Explorer (ICE). If we are successful it may also still be able to chase yet another comet. ... The "Hack" xkcd http://xkcd.com/1337/ mentions the ISEE-3 http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1978-079A is the NASA National Space Science Data Center ISEE-3 page They ask *04/18/14*: We REALLY Need this document: GSFC Document ISEE-733-74-001, Revision C, dated 28 June1976/"International Sun-Earth Explorer - A/C, Electrical//Interface Specification"/. Does anyone have a copy?

12 years, 2 months

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DEC RK8E

by wdonzelli＠gmail.com

So I have this DEC RK8E board set - and it has an extra card. The normal set is M7104, M7105, and M7106 - but this one has M7107 (called "WORD COUNT" on the etch) attached to a very official DEC looking cable harness with the connecting blocks. I thought the M7107 went with the RK07, and I thought the RK07 was never attached to PDP-8 systems. Does anyone have any thoughts on this? And I still want a couple of RK07s. -- Will

12 years, 2 months

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Commodores "TED" machines

by mtapley＠swri.edu

On Apr 19, 2014, at 12:00 PM, Fred wrote: > There are exactly two kinds of people in the world: those who insist on > dividing everybody up into two groups, and we who do not. http://dotsub.com/view/c2084af6-a6b8-4b5c-abd8-11946f8c624c/viewTranscript/… at 02:41. *Great* quote! And I see what you did, with the title, there. - Mark

12 years, 2 months

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PDP-8a Power distribution box schematics

by bobvines00＠gmail.com

> Message: 24 > Date: Fri, 18 Apr 2014 10:26:05 +0200 > From: Anders Sandahl <anders at abc80.net> > To: cctech at classiccmp.org > Subject: PDP-8a Power distribution box schematics > > Hi, > > I'm looking for the schematics to the power distribution box that use to > sit in the bottom of the rack. I have browsed bit-savers.org but I don't > know where too look. Can anybody give me a clue? > > http://www.abc80.net/docs/pdp8/pdp8a/DSC_2287.JPG > http://www.abc80.net/docs/pdp8/pdp8a/DSC_2291.JPG > > Problem for this one is when putting the switch in local mode the big > relay (contactor?) is activated, bit after a white it starts to jumps > between activated/deactivated. I measured the voltage over the coil and > it decreased rapidly when it happens. The contactor is tested standalone. > > I have cleaned this up and repainted it, but have no pictures after the > refurbishment. > > /Anders Is it the one shown in http://z80cpu.eu/mirrors/oldcomputers.dyndns.org/rechner/dec/manuals/decima… starting on PDF page 16? Bob

12 years, 2 months

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Happy birthday to fearless "Hoster"

by jws＠jwsss.com

of the list, Jay West. at least one social media source thinks it is.

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ISA NIC identification website?

by jules.richardson99＠gmail.com

A while back I stumbled across a handy little website that had board outlines, jumper info etc. for ISA NICs - but for some reason I didn't bookmark it. Sound familiar to anyone (the site, not the failing to bookmark something useful)? I'm looking out for an NIC that will work in one of my XT machines; I was given another five* boards yesterday, but the maker/model info on four of them isn't obvious - they're all 16-bit ISA boards, but there's a chance that one of them might work in 8-bit mode on an XT bus. * well, six if you include the IBM token ring card. cheers Jules

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XENIX history

by rob＠bitscience.ca

I seem to recall that there are a number of people on the list who are interested in Microsoft Xenix. For anyone who's so inclined, I just posted a short article that includes a reasonably definitive list of all the platforms and releases of Xenix (up to Microsoft's exit from the business), the original Xenix announcement, a brief digression about how close we came to getting Xenix instead of OS/2, and a couple of other related stories: http://seefigure1.com/2014/04/15/xenixtime.html "Microsoft is pleased to announce there will be no 16-bit software crisis" Regards, Rob

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PDP-8a Power distribution box schematics

by skimsail＠aol.com

Hi there, I've seen a similar problem and have a schematic that I can send you in a day or two when I get to it. It may be due to leaky cap on the back panel because the relay is actuated by 5v that oscillates. Shaun Sent from my T-Mobile 4G LTE Device <div>-------- Original message --------</div><div>From: Al Kossow <aek at bitsavers.org> </div><div>Date:18/04/2014 7:29 PM (GMT-06:00) </div><div>To: cctalk at classiccmp.org </div><div>Subject: Re: PDP-8a Power distribution box schematics </div><div> </div>On 4/18/14 1:26 AM, Anders Sandahl wrote: > Hi, > > I'm looking for the schematics to the power distribution box that use to sit in the bottom of the rack. I have browsed bit-savers.org but I don't know where too look. Can anybody give me a clue? > > http://www.abc80.net/docs/pdp8/pdp8a/DSC_2287.JPG > http://www.abc80.net/docs/pdp8/pdp8a/DSC_2291.JPG > > Problem for this one is when putting the switch in local mode the big relay (contactor?) is activated, bit after a white it starts to jumps between activated/deactivated. I measured the voltage over > the coil and it decreased rapidly when it happens. The contactor is tested standalone. > > I have cleaned this up and repainted it, but have no pictures after the refurbishment. > > /Anders > > DEC-00-H861A-A-D 861-A,B,C Power Controller Maintenance Manual.pdf

12 years, 2 months

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PDP-8a Power distribution box schematics

by anders＠abc80.net

Hi, I'm looking for the schematics to the power distribution box that use to sit in the bottom of the rack. I have browsed bit-savers.org but I don't know where too look. Can anybody give me a clue? http://www.abc80.net/docs/pdp8/pdp8a/DSC_2287.JPG http://www.abc80.net/docs/pdp8/pdp8a/DSC_2291.JPG Problem for this one is when putting the switch in local mode the big relay (contactor?) is activated, bit after a white it starts to jumps between activated/deactivated. I measured the voltage over the coil and it decreased rapidly when it happens. The contactor is tested standalone. I have cleaned this up and repainted it, but have no pictures after the refurbishment. /Anders

12 years, 2 months

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6809 SBC

by lynchaj＠yahoo.com

http://classiccmp.org/pipermail/cctalk/2010-January/282022.html It always suprised me that hre BBC micro used the 6502 rather than the 6809. By the time the Beeb was designed, Acorn had made a 6809 processor board for their System machines, so they must have had experience with the chip. THe Beeb is nice, but a Beeb with a 6809 processor would have been something else :-) -tony Hi! When I designed the N8VEM 6809 host processor it is loosely based on an article I read for the BBC computer called "Dragon in the tube". I am not very familiar with the UK microcomputers but apparently 6809 "coprocessors" were fairly common peripherals on their Z80 and 6502 designs. I used a similar concept for the N8VEM to allow its Z80 SBC to access the 6809 as a "host processor" peripheral on the ECB. One of the builders was able to get CUBIX running on the N8VEM 6809 host processor using the Z80 as its "IO processor". However, I can see how the implementation can get confusing because it is either a Z80 based system with a 6809 coprocessor or a 6809 based system with a Z80 IO processor. In reality it doesn't really matter but it's a matter of perspective. The N8VEM 6809 CUBIX implementation allows the use of ECB peripherals like IDE, video, floppy, serial, parallel, etc but it requires the Z80 to serve all the IO based on 6809 commands. I added the 6809 IO mezzanine board (power, ACIA, PTM, 2 VIAs, expansion bus) to give builders the option of using the 6809 host processor as a stand alone computer or to add separate IO to the N8VEM system when connected to the bus. The idea being to let the 6809 host processor interact with the outside world using its own IO and only involve the Z80 when absolutely necessary. The hardware seems to work OK but we'll see where the software goes. I think with CUBIX the 6809 N8VEM system becomes a lot more practical. The IO mezzanine fits on top of the 6809 host processor. You can see some photos here. These are out of date but give a good idea. Recently I fitted an improved serial cable and the nylon standoff hardware. Also the PTM seems to be working and that's good. http://n8vem-sbc.pbworks.com/browse/#view=ViewFolder&param=m6809 I have many 6809 host processor and IO mezzanine PCBs so if anyone is interested please let me know. This would be a great opportunity for anyone who would like to do some 6809 hardware and software hacking. I think the N8VEM 6809 host processor is the only system I am aware of other than Dave's homebrew that is running CUBIX. There maybe some other homebrew systems out there too I can't find them after some searching. Thanks and have nice day! Andrew Lynch

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FRTS on PDP-8

by rick＠rickmurphy.net

At 03:45 PM 4/17/2014, Kyle Owen wrote: >I've been trying to get Colossal Cave Adventure (ADVENT.SV) running under >OS/8 with no luck. The ADVENT.SV versions are VERY sensitive to just about anything in the environment. Basically, it turns off interrupts and saves all memory. If you have different devices all manner of badness will happen. The current ADVENT release doesn't have that problem, and properly handles files being moved about. I don't know how easy it is to get new files onto your emulated disk, but you might want to have a look at http://www.rickmurphy.net/adventure.html There's a RK05 image on that page with the current code ready to go. However, you can try running what's on the diagpack - .R FRTS *ADVENT.LD *<hit escape> -Rick

12 years, 2 months

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FRTS on PDP-8

by kylevowen＠gmail.com

I've been trying to get Colossal Cave Adventure (ADVENT.SV) running under OS/8 with no luck. A few details: I've got 32k of core in a PDP-8/M (the entire backplane is filled!) and am using my SerialDisk software for emulating an RK05. That software can be found here: https://github.com/drovak/os8diskserver David Gesswein pointed out at VCF East that my software doesn't disable interrupts on the card, which is required for FRTS. Thus, I'm running a three-line program to disable interrupts on the M8650 I'm using for the SerialDisk interface before starting OS/8. Symptoms of attempting to run ADVENT (RUN SD1 ADVENT, where SD1 points to the second partition on the diagpack2.rk05 image) are that it takes about 30 seconds before just returning back to the dot prompt. No errors or anything. Lots of disk activity, but it never really does anything. I've used a fresh image with ADVENT on it, so there shouldn't be any issues of the files getting moved on disk. I also can run it under simh with no issues whatsoever. I suspect there is an issue with my SerialDisk software, but I don't know where I should begin to debug it. This is the first incompatibility I've come across with the latest version. Anyone willing to check it out on another system to confirm an issue? I was hoping to show this off at the second annual Vintage Computer Festival Southeast, but at this rate, it's not looking good. The disk image is here: http://www.pdp8online.com/pdp8cgi/os8_html?act=dir;fn=images/os8/diagpack2.… Thanks! Kyle

12 years, 2 months

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The Restart Page

by Mark＠Misty.com

http://www.therestartpage.com/ Need I say more? -- Mark G. Thomas (Mark at Misty.com)

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Tape reel cases

by BHuntsman＠mail2.cu-portland.edu

Hi all! I've seen several tape reel cases on eBay like the following: http://www.ebay.com/itm/3-VINTAGE-IBM-MAGNETIC-TAPE-DATA-PROCESSING-PLASTIC… Does anyone know, are those circa System/360, or are they from the 7090 era? I'm suspecting they predate the 360, but it's hard to tell... Thanks much, as always! -Ben

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Dialup Available

by jws＠jwsss.com

It is still supported and sold by Software Tool and Die. I maintain a shell account, which includes the dialup access. They sold the first shell access internet account. They were my first network access vendor after many years of BBS only. jim http://www.theworld.com/about/dialups.shtml http://world.std.com/

12 years, 2 months

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ISO System/32 DIAG01 listing

by aek＠bitsavers.org

Got this from Henk yesterday. I went through everything CHM has, and we don't have all of the MAPs for the S/32 we have. Mike Ross probably has a set, but m... at corestore doesn't work any more so I don't have any way to forward an adr to Henk to reach him. Just posting here since maybe someone else has S/32 service docs. -- Hi Al, As you know I am writing a simh IBM System/32 emulator. Currently it completes a IMPL with all "Event indicators" to 7 off. Then it continues with "LOAD IN PROGRESS" and it starts reading several tracks with (I assume) the DCP. Then it hits a one instruction loop: B 0707 on location 0707. I am now hitting a brick wall with this loop. Can you help me with a scan of the program listings that are in the S/32 CE maps ? -- I assume he's run into something like a done interrupt not occurring in the simulation..

12 years, 2 months

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OT: Oldish mac up for grabs

by jason＠smbfc.net

Hey All, I've just had a PowerMac G4 tower dropped off in my office, lovingly repackaged into its original box. Located in North Jersey. Contact me off list if you're interested. --Jason

12 years, 2 months

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