test-drb

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101090 discussions

Price of 1kB SRAM in late 1970's?

by brain＠jbrain.com

Anyone have a rough idea? Jim -- Jim Brain, Brain Innovations (X) brain at jbrain.com Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times! Home: http://www.jbrain.com

17 years, 4 months

XKL TOAD

by bqt＠softjar.se

Dave McGuire <mcguire at neurotica.com> wrote: > > On Jan 12, 2009, at 4:32 PM, Rich Alderson wrote: >> > One was given to a well-known collector of PDP-10 equipment who has >> > been a friend to the owner of XKL since the early days of cisco >> > Systems. It included the only copy of the Tops-10 port for the >> > Toad-1. > > And one is in the possession of my acquaintance Peter Lothberg, > unless that's who you're talking about in the last paragraph. (he > has done a lot of work for Cisco) I think it's pretty safe to assume that this was a reference to Peter. He's the only one I know who really have a collection of PDP-10 machines (including a tri-SMP KI-10 running TOPS-10). Unfortunately, much of his stuff is in storage nowadays. But it's not that far from me... :-) Johnny

17 years, 4 months

VIC-20 Mega-Cart

by wgungfu＠uwm.edu

Most of those games are still active (as in still used) properties by Midway, Namco, Taito, Konami, and Atari. They're opening themselves up to cease and desists and lawsuits by at least 5 different companies. Marty ----- Original Message ----- From: "Golan Klinger" <gklinger at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Sent: Monday, January 12, 2009 1:02:31 AM GMT -06:00 Central America Subject: VIC-20 Mega-Cart Disclaimer: I'm not sure if posting about this is out of bounds so if it is, please accept my apology and direct your flames to the address in my sig. I'm not involved with the project in any way so the following isn't an advertisement so much as a public service announcement/ravings of a very excited VIC-20 user. There's an exciting new piece of VIC-20 hardware called the Mega-Cart. It includes 179 games that were originally released on cartridge (that's all of the known cartridges BTW) as well as 53 games that were released on tape or disk (some of which were released in the last year). It's not just fun and games though. It also includes 24 utilities/applications (programming languages, monitors, an assembler, text editor, terminal program and more) and if that isn't enough, it's also a flexible RAM expander (3K, 8K, 16K, 32K and 32K + 3K). To make it easy to configure and use, the Mega-Cart comes with a menu system (that includes music no less) and it's able to remember all your configuration settings too. How neat is that? I haven't been this excited since I actually got my VIC-20. :) If you want to know more about or are interested in purchasing the Mega-Cart (the price is $100 USD) then visit the website: <http://www.mega-cart.com/> -- Golan Klinger <gklinger at gmail.com> Dark is the suede that mows like a harvest.

17 years, 4 months

New Honeywell H316 video on youtube

by quapla＠xs4all.nl

Try 'Numeric Control Corp', a company in de states who does/(did?) sell papertape. I once bought a case of 48 rolls some time ago for my teletype Ed > >> Where can I buy the "blank" paper roll? > > ...one of the problems *g* >

17 years, 4 months

VIC-20 Mega-Cart

by gklinger＠gmail.com

Disclaimer: I'm not sure if posting about this is out of bounds so if it is, please accept my apology and direct your flames to the address in my sig. I'm not involved with the project in any way so the following isn't an advertisement so much as a public service announcement/ravings of a very excited VIC-20 user. There's an exciting new piece of VIC-20 hardware called the Mega-Cart. It includes 179 games that were originally released on cartridge (that's all of the known cartridges BTW) as well as 53 games that were released on tape or disk (some of which were released in the last year). It's not just fun and games though. It also includes 24 utilities/applications (programming languages, monitors, an assembler, text editor, terminal program and more) and if that isn't enough, it's also a flexible RAM expander (3K, 8K, 16K, 32K and 32K + 3K). To make it easy to configure and use, the Mega-Cart comes with a menu system (that includes music no less) and it's able to remember all your configuration settings too. How neat is that? I haven't been this excited since I actually got my VIC-20. :) If you want to know more about or are interested in purchasing the Mega-Cart (the price is $100 USD) then visit the website: <http://www.mega-cart.com/> -- Golan Klinger <gklinger at gmail.com> Dark is the suede that mows like a harvest.

17 years, 4 months

Anyone ever play with an IOtech Serial488/4?

by ethan.dicks＠gmail.com

Hi, All, I have this IOtech Serial488/4 IEEE-488 quad serial box here, found the manual easily enough, but haven't yet set it up. Does anyone on the list have any experience with one of these? If so, I'd love to hear about any lessons learned or "gotchas". For those that haven't seen one, it's rack-mount box with a 68B09, some ROM and SRAM, a pair of Z8530s, and a TMS9914 GPIB chip. It gives you four buffered serial lines on your IEEE-488 bus. They are still sold new, for new prices, and used for about 10% of that. It looks rather straight-forward to talk to, but I thought I'd ask in case there is some "notorious" feature of them. Given that I'm heavily loaded with PETs and not with HP equipment, I'll probably go that route. Thanks for any tales, -ethan

17 years, 4 months

Nice core stacks that have not been butchered

by wmaddox＠pacbell.net

There is a seller on eBay who has multiple units of an 18-plane core stack (Univac military surplus) that have not been chopped up for display. They are sealed in vapor-barrier bags. I bought one, and it appears to be a refurbed unit packaged for spares. Price is $295 "buy it now". Item # 180320226997 This is just one of them. Search for the other listings. --Bill

17 years, 4 months

SCSI <--> IDE adapters

by emu＠e-bbes.com

Which ones you guys recommend ? Just to clarify, I need an adapter which connects IDE (PATA) drives to an SCSI equipped VAX ...

17 years, 4 months

Sun Server Parts (E4000-E5000 series) Seattle WA

by michaelgreen42＠comcast.net

Figured I would post here if anyone was interested before I go the eBay route. I've got 2 large boxes filled with node boards (most with procs and filled with ram), clock boards, i/o boards, power supplies, and other misc stuff not even sure about. If interested mail me offlist and let me know.

17 years, 4 months

Memory/cache on the 11/70

by bqt＠softjar.se

Since there have been a few discussions about the memory/cache of the 11/70 now, I think I might make a few comments as well. When we talk about the MK11 memory, you need to remember that it's a separate memory box, and is not at all transparent to the 11/70. The 11/70 have a memory bus. This memory bus is what you would interface to if you designed your own memory which you put in the free CPU slot. The memory bus don't have any ECC. The ECC of the MK11 is totally located inside the MK11, and is not visible outside. The 11/70 memory bus only have parity bits. So you can skip all the ECC stuff if you want to play with your own memory "box" design. Pretend it's a MJ11 instead, which is simpler. Another detail is that memory refresh is also something that is internal to the box. None of that is visible to the CPU. And neither is memory rewrites in the case of core. Now, my memory of the 11/70 memory bus is fuzzy, since it's been quite a while since I was studying it. But the schematics and manuals are out there, so all of this can be read up on. But as far as I remember, the 11/70 memory bus is rather simple and asynchronous. The machine presents 22 address (actually 24 are defined, but the top two are always zero). You have 32 data bits. 4 parity on data, and probably also parity on address. You have a few control lines, and that's it. You have three types of transactions. Read, Write, and Read-modiy-write. With the 11/74 you also have an interlock function, but I guess that's a moot point since noone around here have an 11/74 CPU anyway. However, the 11/70 cache and memory controller presents quite a lot of overhead and slowdown. If you really would like to speed the 11/70 up (and you can, believe me), you would want to replace the cache and memory controller all together. Now, after reading a few comments here, I've finally understood the relationship between the SETASI PEP-70 and HC-70. The PEP-70 is 4 megs of memory. You can connect that to the 11/70 memory bus. The HC-70 replaces the cache and memory controller in the CPU. This makes the whole 4 Meg of memory look like cache. You hook the PEP-70 to the HC-70 instead. Nice solution actually. I wonder if (in theory) you could hook any memory box to the HC-70, or if the PEP-70 can work in two modes. One as a device on the memory bus, and one as a cache memory for the HC-70. Anyway, if someone were to design a memory system for the 11/70, the way I'd recommend is to go the whole way, since that's where the real gains are. Skip the memory bus and the original cache. The original cache is just 2 KB of 2-way associative memory. If you set up a 4 MB cache, the CPU can run at full steam the whole time, with a cycle time of about 150 nS, if I remember right. It is more complicated, though. You'll have access paths from CPU, Unibus and four massbus controllers to deal with. But it should definitely be doable (heck, SETASI have already done it once). I might be interested in such a project myself, since the 11/70s we have around here still are on MK11 boxes. I could deal with PCBs and design, but I'm very short on time, as usual... :-( No experience at all with FPGAs or any such fancy stuff. Johnny

17 years, 4 months

Arcades becoming extinct..

by bryan.pope＠comcast.net

.. if they haven't already! :-( I used to always go to this arcade when I was in Toronto (Funland Arcade on Younge Street)... http://www.citynews.ca/news/news_19730.aspx Now its gone.. :-( http://arcadeheroes.com/2008/07/10/funland-arcade-in-toronto-canada-closing… http://www.thestar.com/comment/columnists/article/453843 Syd Bolton of the Personal Computer Museum ( http://www.pcmuseum.ca/ ) of Brantford, Ontario on the last day: http://www.youtube.com/watch?v=QxA2WRqtUkk Cheers, Bryan

17 years, 4 months

PDP-8/e, DECtape TU56 and other stuff available

by erikb＠digischool.nl

Hi folks, Available in the Netherlands for a reasonable offer: PDP-8/e computer PDP-11/40 computer and spare PDP-11/40 processor board set TU56 DECtape unit TC11 UNIBUS DECtape controller PC05 paper tape unit with PC11 UNIBUS controller PDP-9 and PDP-12 consoles Circa 500 M/G/W series single height flip-chips HP 9100 programmable calculator Tektronix 4051 graphics computer Everything looks pretty good, but except for the HP 9100 nothing has been switched on. Please contact me directly if interested. Sincerely, Erik.

17 years, 4 months

FS: NeXT Turbo in Seattle WA area

by michaelgreen42＠comcast.net

I am getting ready to move and trying to lighten my load a bit. I have a working NeXT Turbo, 17 b/w monitor, keyboard, and mouse. It works great with a few minor issues. It boots but gets stuck on detecting network. Since I can't find my NeXTStep install CD's I can't log into it anyway since I don't know the password. Also the port where the mouse plugs into the keyboard has separated from the keyboard portion. It can be fixed since it's not actually broken but it will take more patience/time than I have or just a new keyboard. Looking for best offer. If you don't want the monitor due to shipping reasons I can take that off.

17 years, 4 months

Interesting Folder

by wdonzelli＠gmail.com

I am culling thru some IBM docs, and came across a boring printer memo (for the 3203, all about print quality, big deal) bound in an interesting binder. It is a standard 1950s brown Accopress binder, but the tag on the front says "FRAME 41, XD-1 MAINTENANCE SUPPORT, GROUP 201-250". This cam from a gut that gave RCS a big pile of IBM docs (he was an FE) in the Boston area. XD-1 as in AN/FSQ-7(XD-1)? Mike? -- Will

17 years, 4 months

Mac SE FS in Seattle Area

by michaelgreen42＠comcast.net

I've got a number of working Mac SE's (not 30's) I'd like to sell. I've got both HD and dual floppy models. Some of them need an OS reload and some work fine. Make me an offer, I'd like to move these soon due to a pending relocation.

17 years, 4 months

Lifting heavy rack-mount gear (was Re: PDP-8/e rack questions)

by steve＠cosam.org

2009/1/6 Dave McGuire <mcguire at neurotica.com>: > On Jan 5, 2009, at 5:37 PM, Henk Gooijen wrote: >> That is how my TU56 is hung in the H960 rack. You need help to >> mount the TU56. I did it alone, and remember that is was heavy >> to do on my own, hanging the TU56 in the 5th 10.5" position, >> counting from the bottom :-) > > I did mine alone as well. It is definitely a very heavy machine. I had > back pains for days after doing that. > Probably hard to justify the cost for occasional use, but I'd really like to get one of these before I do myself any permanent damage: http://www.edmolift.co.uk/lift_trolleys.htm [link to random supplier of lift trolleys] I reckon you could slide out your kit, then pump that thing up underneath before undoing the screws. Replacement is the reverse of the removal procedure, as they say. -- Steve Maddison http://www.cosam.org/

17 years, 4 months

Arcades becoming extinct..

by evan＠snarc.net

Sad indeed. Brings back happy memories though of my own childhood arcade in a room at the local bowling alley. The arcade is long gone ... and the bowling alley is a Pathmark. Mark my words ... if MARCH ever gets massive H-building space and a steady stream of visitors, then there shall be a legit arcade room!!! ------Original Message------ From: Bryan Pope Sender: cctalk-bounces at classiccmp.org To: General Discussion On-Topic and Off-Topic Posts ReplyTo: General Discussion: On-Topic and Off-Topic Posts Subject: Arcades becoming extinct.. Sent: Jan 10, 2009 1:05 AM .. if they haven't already! :-( I used to always go to this arcade when I was in Toronto (Funland Arcade on Younge Street)... http://www.citynews.ca/news/news_19730.aspx Now its gone.. :-( http://arcadeheroes.com/2008/07/10/funland-arcade-in-toronto-canada-closing… http://www.thestar.com/comment/columnists/article/453843 Syd Bolton of the Personal Computer Museum ( http://www.pcmuseum.ca/ ) of Brantford, Ontario on the last day: http://www.youtube.com/watch?v=QxA2WRqtUkk Cheers, Bryan

17 years, 4 months

DEC Direct Sales Catalog

by silent700＠gmail.com

I have a copy of this book: http://flickr.com/photos/chiclassiccomp/3178202349/ It appears to be from around 1979, and is chock full of part numbers and specs for hundreds of DEC products of the time, including rack parts, documentation kits, and even the DECMat carpet :) I would really like to get this book scanned, OCR'd and available to DEC collectors. My questions are: Has this guide, or one close to it, already been scanned? How rare are these guides? Does anyone out there have one? I would have to at least remove the binding in order to scan it (and at 140 pages I'm not going to mash each half-page against the scanner glass.) I'd really hate to destroy a book like this. If I'm careful, I can drill holes in the whitespaces, razor off the edge binding, and reassemble it as ringbound.

17 years, 4 months

Arcades becoming extinct..

by evan＠snarc.net

>>> The arcades of today may be disappearing, but the arcades of yesterday are actually on the rise. There is an excellent "new school" store / arcade called Digital Press, located in Clifton, N.J. ... It's about a 45-minute drive from Newark Airport if anyone has a long layover and rental car.

17 years, 4 months

Arcades becoming extinct..

by evan＠snarc.net

>>> Mark my words ... if MARCH ever gets massive H-building space and a steady stream of visitors, then there shall be a legit arcade room!!! Oops. Thought the original message was on our local mailing list, not cctalk. Sorry for the insider chat.

17 years, 4 months

KD-11F (11/03) in a BA11-N??

by bob＠jfcl.com

> Pete Turnbull (pete at dunnington.plus.com) wrote: > a 64KB (32KW) MSV11-D with a base address of 000000(8) responds to all >addresses from 000000(8) to 177777(8). It has a jumper to disable the >top page. Maybe you need to do that? It's certainly possible that could be a problem, but I've been reading the MSV11-D user's manual (it's on vt100.net) and it doesn't have a jumper to disable the top page. Actually what it has is a jumper to _enable_ the bottom 2K of the I/O page, so you can have a tiny bit of extra RAM in systems without many I/O devices. The MSV11 manual says only "factory configured modules will not respond to bank 7 addresses..." and it then goes on to say how you can enable the lower 2K of bank 7 with the aforementioned jumper, but it's quiet about how it decides what a bank 7 address is (i.e. does it monitor BBS7 or the address bits?). The only other jumpers on the MSV11-D are for battery backup and to select the starting address. Thanks for the suggestions, but I'm afraid I'm still puzzled... Bob

17 years, 4 months

Arcades becoming extinct..

by jgessling＠yahoo.com

I found one that is alive and well last summer in Swakopmund, Namibia. Great combination of laundrette, bar, and arcade. You can search the internet for "Swakopmund Laundry" if you want more information. Regards, Jim

17 years, 4 months

Dr. Dobbs to cease?

by jfoust＠threedee.com

http://ztrek.blogspot.com/2008/12/dr-dobbs-soon-to-become-monthly-section.h… - John

17 years, 4 months

2 DLT III cleaning tapes free for the cost of shipping

by jtp＠chinalake.com

Two DLT III cleaning tapes. One has been used once (on a clean drive), the other is unused as far as I know. Free for the cost of shipping from US 01888. Cheers, -J

17 years, 4 months

Mac 400k floppy drive alignment?

by derschjo＠mail.msu.edu

Got myself an ancient external 400k mac floppy drive on the cheap that I'd like to use on my 128k mac -- after cleaning out the old dried lubricant and getting the drive mechanism running again, the drive works but will only read/write disks that it has formatted, which leads me to believe that the drive is out of alignment. How is alignment corrected on these drives? Thanks! Josh

17 years, 4 months

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