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101090 discussions

Fw: Trashed PDP-11/70 system for sell in Pittsburgh

by tosteve＠yahoo.com

See below::: > >> On Feb 23, 2016, at 5:24 PM, Christopher Eddy <ceddy at nb.net> wrote: >> >> I have an 11/70 that I want to find a new home for.. >> 11/70 CPU chassis, with CPU rack and cards in place. The CPU control panel is damaged.. all of the toggle caps and switches have been smashed. No paper or tape drives. >> 11/70 memory chassis, with rack and cards in place. >> Also, I have a separate 11/70 rack, with no cards, but with a control panel attached. Many WW pins are bent. The caps and switches are again very damaged. >> I have not powered it, and don't think that I should. I am partway through a couple of projects to restore it, mainly a project to replace the power supplies with PC style supplies, and another project to replace the switch panel with a touch panel + USB that would allow the unit to operate without the switches. I did not complete either project. >> As it is an incomplete system, or at least the CPU/memory is there, but not complete enough to operate, I was planning to augment it with these projects in order to operate it as is. >> The ribbon cables that join CPU to memory were just cut in two. >> Someone was very rough with it. >> I would like to sell it to someone that wants to proceed with the restoration of it.. but have no idea where to begin. >> I am in Pittsburgh. >> Thanks! >> Chris~ >> 412-369-9920 >> 412-916-7664 >>

9 years, 2 months

Computer for sale

by sellam＠vintagetech.com

I am raising capital for a forthcoming venture dealing with vintage computers and thus am putting the following systems up for sale. Please visit the URL for photos and information (located in the Information file, if applicable) for each system. All prices are negotiable. PDP 8A System 1: http://vintagetech.com/sales/Big%20Iron/PDP%208a/Chassis%201/ Asking $900 System 2: http://vintagetech.com/sales/Big%20Iron/PDP%208a/Chassis%202/ Asking $450 System 3: http://vintagetech.com/sales/Big%20Iron/PDP%208a/Chassis%203/ Asking $300 Heathkit H11 http://vintagetech.com/sales/Big%20Iron/Heathkit%20H11/ Asking $750 ADM 3A http://vintagetech.com/sales/ADM%203A/ Asking $250 Friden 132 http://vintagetech.com/sales/Friden%20132/ Asking $1,500 ATR8000 (Atari 800 Z80 coprocessor box for running CP/M) http://vintagetech.com/sales/Micros/ATR8000/ Asking $500 Digital Microsystems CP/M computer http://vintagetech.com/sales/Micros/Digital%20Microsystems/ Asking $350 Integrated Computer Systems Microprocessor Training Lab http://vintagetech.com/sales/Micros/Integrated%20Computer%20Systems/ Asking $400 SWTPC 6800 http://vintagetech.com/sales/Micros/SWTPC%206800/Information Asking $950 Teleram 3000 http://vintagetech.com/sales/Micros/Teleram%203000/ Asking $650 Fulcrum Computer Products IMSAI 8080 clone http://vintagetech.com/sales/S-100/Fulcrum/ Asking $1,200 MITS Modem boardset http://vintagetech.com/sales/S-100/MITS%20Modem/ Asking $250 Polymorphic Systems POLY-88 http://vintagetech.com/sales/S-100/Polymorphic%20Systems%20POLY88/ Asking $1,250 Wang 380K Programmable Calculator with 362E terminal http://vintagetech.com/sales/Wang%20362E/ Asking $1,100 Please also see additional systems for sale (including a pair of IBM 3420 tape drives with 3803 controller) in the photos here: http://vintagetech.com/sales/Big%20Iron/ Please inquiry directly for more information. Thanks! -- Sellam Abraham VintageTech ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintagetech.com Whatsoever a man soweth, that shall he also reap. The truth is always simple. * * * NOTICE * * * Due to the insecure nature of the medium over which this message has been transmitted, no statement made in this writing may be considered reliable for any purpose either express or implied. The contents of this message are appropriate for entertainment and/or informational purposes only. The right of the people to be secure in their papers against unreasonable searches and seizures shall not be violated.

9 years, 2 months

A gold mine for anybody in Austin...

by barythrin＠gmail.com

Ditto. ?Talked to him last year some time. I think he's a nice guy and cou himself in a situation that any of us and some do end up in. ?Too much of a good thing. Funnier is i always read his posts and could pretty much copy and paste them as my own.? Either way i think he does have some nice gear but he knows like us the value and isn't looking to get rid of things afaik. Nothing wrong with that. At the time we talked we also spoke about trades being desirable more than cash flow. ? Not sure if he hangs out here or other forums.? <div>-------- Original message --------</div><div>From: George Currie <g at kurico.com> </div><div>Date:03/14/2016 10:52 AM (GMT-06:00) </div><div>To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> </div><div>Subject: Re: A gold mine for anybody in Austin... </div><div> </div>On Sun, 13 Mar 2016 18:50:56 -0500, James Vess <theevilapplepie at gmail.com> wrote: > Probably true, but it's a weekend and I have time to deal with it so > we > will just see how it goes, I have some hope but low expectations. > I've communicated with him in the past. He seems like a nice enough fellow, but IMHO the prices he was asking for his stuff was way to high. His ads have been in the local CL for a long time now, so I assume he's not in a big hurry to sell or let things go at firesale prices (though maybe it's been long enough now that he'd be more open to it).

9 years, 2 months

Honneywell multics? from panels. the inline phots in this message folks -smecc

by jnc＠mercury.lcs.mit.edu

> From: Charles Anthony > I get bloody impressed just watching it on the emulator; doing it in a > production environment must have been spectacular. Even though I never did do any programming on Multics myself (I had an account on the MIT system, and logged in a bit), I still feel that _as an environment for system programming_, it's _still_ far ahead of almost all the available competition. Unix V6 at least had the grace of simplicity and incredibly small size; its descendants have lost that, and so to me Linux, for example, is entirely inferior to Multics. Which to me is a pretty awesome accomplishment, in a field as fast-moving as computers - the only thing that even vaguely compares is the A-12/SR-71, which today, 17 years after it retired in 1998 (it first flew in 1962), _still_ holds the record for the fastest air-breathing aircraft. There is one axis along which I concede that things have advanced since Multics, which is away from monolithic kernels - Multics is pretty much one big lump in ring 0, except a few things in ring 1. But the complete structing of the system around a segmented, single-level memory system (at least, in terms of the environment the user sees) is such a fantastic idea that I simply don't understand why that hasn't become the standard. (The ability to map files in, and DLL's, do get a lot of that power, but in an ad hoc, inelegant, and less powerful way.) A few now-defunct system (e.g Apollo) picked up on it, but the only OS today I know of based around the concept is the IBM i, the descendant of the Control Program Facility OS on the System/38. Sigh. (And apologies for the rant, it's one of my hot buttons.. :-) Noel

9 years, 2 months

DEC RK05 Emergency Retract Batteries

by michael.99.thompson＠gmail.com

We started working on the RK05 drive that is part of the PDP-12 at the RICM. The drve is very clean and in good condition. It will need new seals between the blower and the card cage, and between the plenum and the disk pack. I think that 1/2" and 1/4" weatherstrip from Home Depot will work fine. The NiCad batteries for emergency head retract are toast. These look like standard 1.2V 2/3AA 400mAh cells. It looks like some cordless phones use the same batteries so I can buy an assembled 4.8V battery pack. Any other suggestions for replacement batteries for the RK05? -- Michael Thompson

9 years, 2 months

Giving away Garage full of computers

by linimon＠lonesome.com

Have you gotten any takers yet? I have a special soft spot for those Printros. mcl

9 years, 2 months

Type 270 disk file on PDP-6

by spacewar＠gmail.com

I just was looking at the I/O device code assignments in the 1973 DECsystem-10 System Reference Manual, and happened to notice the entry for the Type 270 disk file used on the PDP-6. PDP-6 and PDP-10 device codes are three octal digits, of which the third digit can only be 0 or 4. The device code for the Type 270 is octal 270. Coincidence? :-)

9 years, 2 months

Promac-P3 PAL/PROM programmer

by mark.kahrs＠gmail.com

I have a Promac-P3 PROM/PAL programmer. I'd like to get rid of it. I'll give it away, you just have to pay shipping. It includes a copy of the schematics. Send email offlist if interested.

9 years, 2 months

Which RT-11 for an 11/03

by jhfinedp3k＠compsys.to

>Richard Cini wrote: >All ? > > To close this out, I want to report that with Malcolm?s and Mattis? help, I was able to get RT-11 v4 and v5.03 running on the H-11 using the TU58 emulator. > > Avoiding the gory details, the upshot is that there was a bus interrupt issue relating to how the cards were installed ? I had the slot numbering wrong so there was a gap between two cards. RT-11 started booting and then barfed during the boot. > > Once I moved the second SLU to the right position, RT-11 booted properly. So, now I have both RT-11 v4 and v5 running on the H-11. Hooray! > > Thanks to all who helped push me along on this. I did create a separate Heath page on my Web site for it. > >Rich > >-- >Rich Cini >http://www.classiccmp.org/cini >http://www.classiccmp.org/altair32 > Congratulations!!!!!!!!!!!!!! Now that you have a working system, will it be used to run any specific programs? Based on your descriptions, the most important aspect of the project was to get the H-11 system to run RT-11. What I am very curious about is what do you will do with the system now that it is running? >From what you have stated, both stock versions of RT-11, V04.00 and V05.03, are being used rather than the Heath supplied versions of RT-11. Can you please confirm this assumption? As for the interrupt problems, using an M9047 bus grant card would probably also have solved the problem - if you have one. At this point, do you have any other storage other than the emulated TU58? If so, is it a Heath product or a real DEC product and which storage is it? Jerome Fine

9 years, 2 months

VMS/RSTS/RSX manuals available, SOC, DECdirect books, Newmarket UK

by binarydinosaurs＠gmail.com

Folks, We're refitting the last unrefitted office here and there's a full bookcase of grey heading for the skip unless anyone wants to take them away? Must admit in the 12 years I've worked here I didn't realise there was a shelf of RSTS manuals! Deadline is late next week so thurs/fri 17/18th. -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest home computer collection? www.binarydinosaurs.co.uk

9 years, 2 months

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