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

dfitoimd: decoding Intel M2FM floppy flux images (was Re: Intel 432 floppy flux images for decoding)

by spacewar＠gmail.com

Because the cwtool support for Intel M2FM floppy disk flux images isn't publicly available, I've written a crude Python 3 program for converting such images (in DFI format) to ImageDisk images, and put it on github: https://github.com/brouhaha/dfitoimd My ADPLL data separator has parameters to control the proportions of frequency adjustment and instantaneous phase adjustment that are done at each flux transition. I've experimented with the parameters quite a bit, but it's still not good enough to reliably recover all sectors >from the disk images that started this thread. The default parameters are currently 0.5% frequency adjustment and 10% instantaneous phase adjustment. I was actually fairly surprised that I didn't get better results with more frequency adjustment and less instantaneous phase adjustment. It's entirely possible that my algorithm isn't very good. The code can handle normal IBM 3740 single-density FM format as well, though there are other published programs that already do that. There's a start at code for IBM System/34 double-density MFM format also, but it hasn't been tested at all as I don't happen to have any suitable DFI images. The dfitoimd program is quite slow; on a typical Intel M2FM image with two revolutions per track and 25 MHz sampling, it takes 64 seconds on a 4.0 GHz AMD CPU. I'm pretty sure that rewriting it in C/C++/C# or the like would make it much faster, but I specifically chose Python as I find it easier to experiment with the algorithms.

10 years

5
17
0 0

Atlanta Open House tomorrow!!

by jwest＠classiccmp.org

I'm posting this on behalf of Cindy at Elecplus I can't post to cctalk when I am away from home. I am in Atlanta, and the owner of the warehouse hs agreed to let people come in tomorrow. Please can you post the following for me? First come first served, no shipping on the really cheap items. Model M 101/103 terminal keyboards $10 each, no cracked cases, may not have complete caps. Hundreds of keyboards for other terminals starting at $30 each, tested and complete. A full pallet of AEK 1 and 2 keyboards More expensive items include a Burroughs keyboard, complete and in good condition, a 1978 terminal in working condition, and the following terminals/keyboards, tested, no screen burn, keyboards are complete. DEC VT100 (no keyboards), 220, 320, 420.Wyse 50 and 60 with keyboards. Qume 62 and 101+ with keyboards.Link MC2 and 3 with keyboards. ADDS 4000 with keyboards. HP 700/22, 700/43, 700/60, 700/90, 700/92, 700/94, 700/96 with keyboards. LOTS of working vintage test equip. Some pics are here: <https://drive.google.com/open?id=0BxqLDyoLYuCKbkEwdmlST2lKaUU> https://drive.google.com/open?id=0BxqLDyoLYuCKbkEwdmlST2lKaUU Thank you! Cindy

10 years

1
0
0 0

HP 110 AC Adapter

by COURYHOUSE＠aol.com

and with the right hil interface card can be used with hp-150 also. Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 8/10/2016 1:56:14 P.M. US Mountain Standard Time, Thanks (and thanks also to Rik for his input). The appropriate adapter is reasonably cheap on eBay ($20 with shipping) so I have one on its way. I've wanted an HP 110 for awhile (but never went out of my way to get one) so this should be fun to play with. And the 9114 drive that came with it can also be used with my HP-75, so that'll be cool as well. Thanks for the tips! - Josh

10 years

1
0
0 0

HP 110 AC Adapter

by Martin.Hepperle＠MH-AeroTools.de

Josh, for testing you can also remove the battery and connect a 6V DC power supply to the computer. Under the battery cover there is also a picofuse which may be blown if someone was tinkering with the machine before. The HP 110 is interesting if you want to play with HP-IL - it has some BIOS routines to control the HP-IL. The other remarkable thing is that he has MS-DOS in ROM and all data on RAM disks m(which is rather limited, though). Ideally you would also want a 9114 3-1/2" floppy disk drive for it. If the computer works, you can rebuild the battery pack. The lead cells are still available e.g. under the name Hawker Enersys Cyclone 2V/2.5Ah. You can use 3 single cells (about 7$ each) and make them into a pack. Good luck Martin

10 years

2
1
0 0

the value of old test and repair equipment

by sales＠elecplus.com

I had to pass up a large qty of old test equip at the recycler last time because they wanted too much for it. For instance, an old HP signal generator would have cost me $25, with no way to test it, and no guarantees that it was complete or working. So my question is, does as-is old test and repair equip that won't be particularly cheap have interest to you guys? Cindy Croxton Electronics Plus 500 Pershing Ave. Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com AOL IM elcpls

10 years

10
16
0 0

Photo album and video from VCF West

by jwsmail＠jwsss.com

https://goo.gl/photos/KdnDMBHeryMZqctV9 Youtube Channel playlist of videos. Some walking around Saturday morning before the show, Charles Anthony's exhibit. Also a fellow who dropped by after my buying a PDP 11/34 and was one of the engineers. I recorded an impromptu interview with him. https://www.youtube.com/watch?v=UtmVGeVhr7A&list=PL5NK70kdq3-JGwb_8GXFN5SqD… Sherman Foy and I had a great time attending and participating in the event this year. Thanks to the organizers, staff and volunteers that were there to put it on. Thanks Jim

10 years

3
4
0 0

VCFMW 11 Updates and Special Guest

by silent700＠gmail.com

Hello retro fans - we are approaching the one month point before the Eleventh Vintage Computer Festival Midwest and plans are quickly coming together. Here are a few announcements and updates to bring you up to speed: - We're happy to announce our very special guest speaker, former Commodore engineer, Bil Herd! Bil will deliver an entertaining 90-minute talk and Q&A on his time at Commodore and his many post-Commodore adventures in engineering that continue today. - We are going to be packed FULL! And that means full of great exhibits, including the ones listed here: http://vcfmw.org/ex.html. The main hall's tables are all accounted for but there will be some unassigned space in one of the side rooms for late-comers and impromptu displays. - VCFMW Auction - an experiment last year, now a feature! Quality entertainment and a fundraiser for the show, 4pm Saturday will see another auction of donated items at low starting bids. If you have items you wish to donate for auction, please get in touch with show organizers Friday night or early Saturday. Auctions items need not be classic computing related. No registration is required for the auction. - The Free Pile tradition continues! One corner of the "Grove" side room (http://vcfmw.org/HIEGV_FloorplanDetail.jpg) will be dedicated to the infamous Free Pile - leave your junk there but be prepared to take it home if it's still there Sunday afternoon! No printers, please! - Hotel rooms are still available at the $84/night convention rate; please follow the link at http://vcfmw.org or use the code "VCF" when calling the hotel; if you are unable to obtain the con rate, please let me know as I may have to ask the hotel to expand the reservation block. - We remind you that VCF Midwest is a community-funded show; we receive no funding from any other organization. If you appreciate what we do and you are able, please visit the donation links on our site at http://vcfmw.org. Please feel free to help us get the word out and re-post this message in your favorite vintage-related forum. Thank you for your interest and support and we'll see you in September! -j

10 years

2
2
0 0

SWTPC 6800

by vintagecomputer＠bettercomputing.net

I think for me what gets confusing is where the various pins are. ?I have to read and re-resd pinouts to figure out where stuff should be. ?I sometimes have a brain fart and get it backwards. ?Yesterday part of my problem with my Tektronix box was having the numbering of pins on the terminal's DB25 backwards. ?Once I had that figured out it was just a matter of looping certain pins and we were good. ?It just adds an extra layer of fiddling. I have a question though.. there have been a few times where I thought the 6800 crashed but may not have. ?In several cases.. I sent a large loader file across and noticed errors coming through.. so I'd stop the machine. ?This was after teraterm said it had sent everything through. ?Is it possible the serial port on my PC is still trying to send out garbage for a while, messing up my connection to the 6800 until it finishes? ?I kept moving cards around but eventually it seemed to start working after so many powerups and time had passed.. Sent from my Samsung device -------- Original message -------- From: Brent Hilpert <hilpert at cs.ubc.ca> Date: 2016-08-09 9:49 AM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: SWTPC 6800 On 2016-Aug-09, at 6:47 AM, Ethan Dicks wrote: > On Fri, Aug 5, 2016 at 6:55 PM, Chuck Guzis <cclist at sydex.com> wrote: >> On 08/05/2016 02:15 PM, Brad H wrote: >>> I have one more question for you guys -- I have a few CT-1024 >>> terminals and would really like this system to work with one of >>> those.? However, all of the CTs are quite delicate and are set I >>> think for 7, E, 2 @ 110 baud via soldered jumpers. >> >> Well, 110 bps is a bit on the slow side--great for teletypes, not so >> much for video terminals. > > And I am not aware of any USB serial adapters that do 110 bps.? If > anyone knows of any, post brand and model numbers. It didn't do 110, but I chanced across one USB/serial adapter that goes down to 75 bps. which fortuitously was just what I needed at the time for the model 28 teletype (with the appropriate gears) I was attempting to drive. The 75 wasn't readily accessible, I had to go to a low level in the unix config code and try sequential factors in the configuration for the rate, 75 being another factor of 2 down in the standard rate series 19,200 . . 9600 . . 1200 . . 300 . . 150 . .

10 years

2
1
0 0

CCS S-100 system avail in Minneapolis

by billdegnan＠gmail.com

I was contacted about a CCS S-100 system available for pickup in the Minneapolis area. Contact me privately. Includes CP/M software, etc. A full station wagon full of stuff/docs. I don't know the guy, just trying to help out. http://www.vintagecomputer.net/contact.cfm Bill

10 years

2
2
0 0

Video From VCF West

by vintagecomputer＠bettercomputing.net

Thanks muchly. ?Interesting.. his 6800 has the all black front panel but has the db25 holes in the back.. mine doesn't have the db25s. Sent from my Samsung device -------- Original message -------- From: william degnan <billdegnan at gmail.com> Date: 2016-08-08 6:30 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Video From VCF West > > > > Very cool stuff!? Thanks so much to everyone providing videos. > I'm curious.. I had heard Michael Holley would be there with a bunch of SWTPC stuff.. did that happen? > Brad > > http://www.vintagecomputer.net/VCFWest_2016/SWTPc_Exhibit.jpg He is the guy on the right, at his exhibit. B

10 years

1
0
0 0

Video From VCF West

by COURYHOUSE＠aol.com

Nice display - we have some processor frame and disc drive that we got this spring at SMECC so I have been saving off the messages on SWTPC during the last week or so. About the only experience with this is I saw one John Harrington had that ran the GE service shop.... so time to learn now! Ed# Very cool stuff! Thanks so much to everyone providing videos. > I'm curious.. I had heard Michael Holley would be there with a bunch of SWTPC stuff.. did that happen? > Brad > > http://www.vintagecomputer.net/VCFWest_2016/SWTPc_Exhibit.jpg He is the guy on the right, at his exhibit. B

10 years

1
0
0 0

OT: Creative reuse

by starbase89＠gmail.com

I know the content of this picture is probably way too new for this list, but I figured people on here might appreciate it. I work at Pepboys and I snapped this picture a few days ago. I love this person's reuse of something they apparently don't have a use for anymore. I'm sorry if this email offends anyone http://i63.tinypic.com/28ahk06.jpg Joe

10 years

3
2
0 0

Video From VCF West

by vintagecomputer＠bettercomputing.net

Very cool stuff! ?Thanks so much to everyone providing videos. I'm curious.. I had heard Michael Holley would be there with a bunch of SWTPC stuff.. did that happen? Brad Sent from my Samsung device -------- Original message -------- From: Curious Marc <curiousmarc3 at gmail.com> Date: 2016-08-08 11:50 AM (GMT-08:00) To: cctalk at classiccmp.org Subject: Re: Video From VCF West Here is my video with excerpts from the show: https://youtu.be/2bbsgfanbE0 Marc From: cctalk <cctalk-bounces at classiccmp.org> on behalf of "jwsmail at jwsss.com" <jwsmail at jwsss.com> Reply-To: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Date: Sunday, August 7, 2016 at 10:41 AM To: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Subject: Re: Video From VCF West On 8/7/2016 7:36 AM, jim stephens wrote: 6 videos from saturday, youtube playlist once more with the link https://www.youtube.com/playlist?list=PL5NK70kdq3-JGwb_8GXFN5SqDtbTKtLi7

10 years

3
2
0 0

VCFMW 11 Updates and Special Guest

by silent700＠gmail.com

Hello retro fans - we are approaching the one month point before the Eleventh Vintage Computer Festival Midwest and plans are quickly coming together. Here are a few announcements and updates to bring you up to speed: - We're happy to announce our very special guest speaker, former Commodore engineer, Bil Herd! Bil will deliver an entertaining 90-minute talk and Q&A on his time at Commodore and his many post-Commodore adventures in engineering that continue today. - We are going to be packed FULL! And that means full of great exhibits, including the ones listed here: http://vcfmw.org/ex.html. The main hall's tables are all accounted for but there will be some unassigned space in one of the side rooms for late-comers and impromptu displays. - VCFMW Auction - an experiment last year, now a feature! Quality entertainment and a fundraiser for the show, 4pm Saturday will see another auction of donated items at low starting bids. If you have items you wish to donate for auction, please get in touch with show organizers Friday night or early Saturday. Auctions items need not be classic computing related. No registration is required for the auction. - The Free Pile tradition continues! One corner of the "Grove" side room (http://vcfmw.org/HIEGV_FloorplanDetail.jpg) will be dedicated to the infamous Free Pile - leave your junk there but be prepared to take it home if it's still there Sunday afternoon! No printers, please! - Hotel rooms are still available at the $84/night convention rate; please follow the link at http://vcfmw.org or use the code "VCF" when calling the hotel; if you are unable to obtain the con rate, please let me know as I may have to ask the hotel to expand the reservation block. - We remind you that VCF Midwest is a community-funded show; we receive no funding from any other organization. If you appreciate what we do and you are able, please visit the donation links on our site at http://vcfmw.org. Please feel free to help us get the word out and re-post this message in your favorite vintage-related forum. Thank you for your interest and support and we'll see you in September! -j

10 years

1
0
0 0

OT: Creative reuse

by couryhouse＠aol.com

Valid use... ?when network cables ?loose the litthe anchor tab I get another of the never ending ?stack the old ones tie trees to stakes... hold crates together etc.. the uses are infinite... never recrimped a new connector on them.Somehow the stack refills....Ed# Sent from my Verizon, Samsung Galaxy smartphone -------- Original message -------- From: Richard Cini <rich.cini at verizon.net> Date: 8/8/16 16:17 (GMT-07:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: OT: Creative reuse I guess your customer switched to WiFi? Sent from my iPhone > On Aug 8, 2016, at 7:10 PM, Joe Giliberti <starbase89 at gmail.com> wrote: > > I know the content of this picture is probably way too new for this list, > but I figured people on here might appreciate it. I work at Pepboys and I > snapped this picture a few days ago. I love this person's reuse of > something they apparently don't have a use for anymore. > > I'm sorry if this email offends anyone > > http://i63.tinypic.com/28ahk06.jpg > > Joe

10 years

1
0
0 0

Honeywell 440

by COURYHOUSE＠aol.com

the fact it is rebranded suggests an older product indeed.... with a new name tag so who owns this thing now!??? Ed# In a message dated 8/8/2016 2:50:47 P.M. US Mountain Standard Time, billdegnan at gmail.com writes: On Mon, Aug 8, 2016 at 5:29 PM, Al Kossow <aek at bitsavers.org> wrote: > According to the Computers and Automation census, the first delivery of the > 440 T/S was Jul, 69. After the sale, it shows up in the census under > Honeywell > as the G440 T/S. It's a pretty rare machine. It dissappears in Mar '72 > with no > known installations. > > I did check the KeyData Computer Characteristics Review of 1969, but I did not see it there. I have Vol 9 #2, not sure when exactly in 1969 or thereabouts it was actually written or published. I just now checked the Auerbach Computer Characteristics Digest of 4/1969 and I *did* find the GE 440 CPU there. $7,000 monthly rental, purchase price of $311,000 In the same digest, the Honeywell model 440 is part of the H-400 system. It's an expensive I/O thing not a CPU. At the time the Honeywell 440 was their name for their "Optical Scanning Unit and Control" with the note: Not available for new orders. $2530/mo and $121,440 to buy. So, to find a Honeywell 440 nameplate prob means it was for something produced after 1969, at least according to my sources. Bill

10 years

1
0
0 0

Honeywell 440

by billdegnan＠gmail.com

Jim and Sherman (?), I checked and I don't have anything on the Honeywell 440 or anything like a re-branded Honeywell sold by GE. I think that the name "General Electric" printed on the back was due to the fact that they owned the Honeywell 440 and used it internally. It's not a GE PAC or anything like that. http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_front-panel_1.jpg http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_front-panel_2.jpg http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_front-panel-tag.jpg http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_rear-panel_General-El… http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_placard.jpg -- @ BillDeg: Web: vintagecomputer.net

10 years

2
4
0 0

Honeywell 440

by COURYHOUSE＠aol.com

I would certainly buy that desk and panel and get it back to phoenix! who ever has it/ ended up with it please contact us off list. Being that we are in the home of GE computer in the Metro Phx arrea we strive to bring some of these things back for display... It was sad watching them hack up all the off lease systems that came back at apache street. I even saw some 210 225 etc etc stuff hacked apart.... In a message dated 8/8/2016 2:28:35 P.M. US Mountain Standard Time, aek at bitsavers.org writes: According to the Computers and Automation census, the first delivery of the 440 T/S was Jul, 69. After the sale, it shows up in the census under Honeywell as the G440 T/S. It's a pretty rare machine. It dissappears in Mar '72 with no known installations. On 8/8/16 2:23 PM, Al Kossow wrote: > and Honeywell bought the GE computer operation in 1970. > I'd have to do more research to see if the 400-series was still > being produced after the purchase. > > On 8/8/16 2:18 PM, Al Kossow wrote: >> >> >> On 8/8/16 1:48 PM, william degnan wrote: >>> Jim and Sherman (?), >>> >>> I checked and I don't have anything on the Honeywell 440 or anything like a >>> re-branded Honeywell sold by GE. >> >> >> It is a GE 400-series control console >> you can see the maint panel on page 281 of >> >> bitsavers.org/pdf/ge/GE-4xx/CPB-320_GE425-435_RefMan_Dec63.pdf >> >> >> >

10 years

1
0
0 0

Honeywell 440

by COURYHOUSE＠aol.com

absolutely wrong. In a message dated 8/8/2016 1:48:56 P.M. US Mountain Standard Time, billdegnan at gmail.com writes: "General Electric" printed on the back was due to the fact that they owned the Honeywell 440 and used it internally.

10 years

1
0
0 0

Honeywell 440

by COURYHOUSE＠aol.com

this is just like our ge 400 operators desk panel thingie! GE GE! In a message dated 8/8/2016 1:48:56 P.M. US Mountain Standard Time, billdegnan at gmail.com writes: Jim and Sherman (?), I checked and I don't have anything on the Honeywell 440 or anything like a re-branded Honeywell sold by GE. I think that the name "General Electric" printed on the back was due to the fact that they owned the Honeywell 440 and used it internally. It's not a GE PAC or anything like that. http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_front-panel_1.jpg http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_front-panel_2.jpg http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_front-panel-tag.jpg http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_rear-panel_General-Ele ctric.jpg http://vintagecomputer.net/VCFWest_2016/HoneyWell_440_placard.jpg -- @ BillDeg: Web: vintagecomputer.net

10 years

1
0
0 0

VCF West - going?

by billdegnan＠gmail.com

I am heading to VCF West after a stop over in San Fran today...I am looking forward to meeting up with everyone. I will be there all day Friday as a set-up volunteer, Sat and Sunday morning. I was at the last VCF before it was called "West" ... it's been too long. Bill -- @ BillDeg: Web: vintagecomputer.net Twitter: @billdeg <https://twitter.com/billdeg>

10 years

11
14
0 0

Livingston PortMaster 2e

by brain＠jbrain.com

No questions, and nothing of interest, but a quick story of success. Not sure if PortMasters are on topic or not, but I picked a 20 port unit up at VCF-SE #2 in 2014 and it has sat on my shelf for 2 years as I tried to find a large block of time to get it working. Having never used a unit in the past, I somewhat dreaded the learning curve. Circumstances forced it to be moved, and I thought last night, instead of just putting it back, I'd try to get it going. Grabbed a null modem cable, gender changer, plugged into port 0, fired it up, started a term, and almost immediately got to a prompt! A quick dload of the PortMaster config guide, logging in as !root without a password, and I was in. Some of it was luck (the Port 0 was in console mode, and my term just happened to be at 9600 bps, 8N1), but having the docs easily accessible and not requiring a special Windows App or some other nonsense was half the battle. 20 minutes later, I had the unit configured to accept incoming direct connections from old equipment, with my userid set to no password with functionality to prompt for the server name upon login. That was awesome. On the other hand, after the 2e was up, I started investigating the AWAN 3883 Terminal Server I had lying here. Web sources and config guides kept pointing me to a Windows App to configure, and it looks to need adapters to connect to RS232 (not as big a deal, but still a irritant), so I put it in my pile to give away. Jim -- Jim Brain brain at jbrain.com www.jbrain.com

10 years

3
2
0 0

8 inch disks - help needed identifying format

by denise.devries＠flinders.edu.au

Thanks Rik and Eric for your information. BTW it was the HP Museum who directed me to this list. Denise

10 years

2
1
0 0

TRS-80 Trash Talk - Live Episode

by pete＠pski.net

We?re going to be recording a live episode of TRS-80 Trash Talk next Saturday, Aug 13th at 9pm EDT. If you?re into any of the machines from Tandy Radio Shack then stop by and join the fun. https://www.facebook.com/events/1044642265619305/

10 years

2
2
0 0

TRS-80 Trash Talk - Live Episode

by COURYHOUSE＠aol.com

I am up for some 100/102 talk! That unit is actually a big interest as not only are they vintage computers, but they fit in another of our displays, "The tools of the journalist" . As a matter of fact we are looking for another to go in the display in our university's journalism college we have offsite.. It does not need to work just look nice! There RS Computers were a great tool to remotely post stories... and the 100 fit in any carry on bag! let us know if there is a unit you can share! Ed Sharpe Archaist for SMECC _www.smecc.org_ (http://www.smecc.org) In a message dated 8/7/2016 4:49:13 P.M. Pacific Daylight Time, drlegendre at gmail.com writes: What sort of stuff do you tend to cover? My interest in Tandy / RS machines is mostly limited to the Model 100/102 machines, with which I have some familiarity. The Model 100 line are my "favorite" of the early pre-PC / DOS portables. The dang things are just so friendly and usable.. and what kind of modern laptop / netbook boasts a full-stroke keyboard and 30+ HR battery life? They have some seriously practical features, and the small screen & RAM space isn't really all that limited with the programming conventions and ethos of that era. On Sun, Aug 7, 2016 at 11:01 AM, Peter Cetinski <pete at pski.net> wrote: > We?re going to be recording a live episode of TRS-80 Trash Talk next > Saturday, Aug 13th at 9pm EDT. If you?re into any of the machines from > Tandy Radio Shack then stop by and join the fun. > > https://www.facebook.com/events/1044642265619305/ > >

10 years

1
0
0 0

SWTPC 6800

by vintagecomputer＠bettercomputing.net

Okay so.. I decided to try the MP-C board out, just for kicks. ?No change. Then I decided to add one of the RAM boards.. the next one up in addresses. ?Got a little bit when I powered on. ?Added one of the old MPM boards.. one that has memory chips all piggybacked on one another. ?Now when I powered up, the system was sending four or five characters at a time, linefeed, four or five characters at a time, linefeed ad infinitum. ?I added the final MPM board.. zero. So.. I think we do have some ram problems.. most likely. ?I'm thinking it would be easiest to concentrate efforts on the socketed RAM boards.. test all the RAM out. ?I'm going to read up on addressing and try to understand a bit better what is going on. ?I'm thinking maybe I need to reconfigure the addressing on one of the boards to match whatever that overstuffed MPM board is set to. Until I get an oscilloscope.. fooling around is about all I can do here. Sent from my Samsung device -------- Original message -------- From: Chuck Guzis <cclist at sydex.com> Date: 2016-08-05 3:55 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: SWTPC 6800 On 08/05/2016 02:15 PM, Brad H wrote: > I think I will have to figure out how to do that.? Additionally I > have one of those PC based oscilloscopes on the way.? I don't know > how to use them 100% but I'm about to learn I guess. :) > > I have one more question for you guys -- I have a few CT-1024 > terminals and would really like this system to work with one of > those.? However, all of the CTs are quite delicate and are set I > think for 7, E, 2 @ 110 baud via soldered jumpers.? I'm a bit > reluctant to try pulling them apart to get in there and fix that.? Is > there a way to change the parity, etc settings on the SWTPC to match > the terminal?? Is it necessary? Well, 110 bps is a bit on the slow side--great for teletypes, not so much for video terminals.?? But you'll have to change the hardwired jumpers--the UART used in the CT1024 is not software-programmable. If this were my unit, I"d probably solder some pins into the pad holes and then either use slide on jumpers or wirewrap to set the characteristics.? That way, when changing things around, you won't be stressing the PCB. Something like this: http://www.ebay.com/itm/10PCS-20CFemale-to-Female-1-Pin-Plug-Jumper-Cable-W… Search on "female jumper wires" --Chuck

10 years

3
3
0 0

Old High-Noise-Immunity Logic for swap/trade

by jnc＠mercury.lcs.mit.edu

Hi, I have a small stack (~60) of assorted "High-Noise-Immunity Logic" (HNIL or HINIL) chips that I have no use for, and would like to trade for something I do have a use for. These run off like +16V; numbers are 3xxCJ (for xx=03, 21, etc); they were made by Teledyne (the line was later bought out by ITT, whose part numbers for these are ITT3xx; also, at some point passed through Telcom, whose part #'s for the series are TSC3xx). If anyone's interested, let me know, I can send you a list of what I've got. Noel

10 years

1
0
0 0

Yard sale goodies

by starbase89＠gmail.com

Greetings! Went to a sale this morning and ended up with some neato pieces of equipment. First are two Shugart 8 inch floppy drives ($1 each), a microprocessor training kit ($30) and finally a RCA COSMAC dual 8 inch disk drive ($5). One of the sellers told me to come back tomorrow because he's going to dig out a bunch of other 70s and early 80s equipment. https://postimg.org/image/gyjd3j16p/ I can find no reference to either the microprocessor trainer for the cosmic disk drive assembly online. Any information would be pretty cool to see. Thanks! Joe Giliberti

10 years

4
4
0 0

PDP-11 prices

by jnc＠mercury.lcs.mit.edu

So that most recent PDP-11/20 (well, technically, a /15) on eBay went for $2200: http://www.ebay.com/itm/191933305000 which was a lot less than the other one _but_ this was only one drawer, only one ME11 memory, no H960, no documentation, no software, no KT11-B, etc, etc. It looks like the high bidder was the under-bidder on the previous one. Noel

10 years

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those unable to attend VCFhere is traffic '72 listen while watching videos..

by COURYHOUSE＠aol.com

For those unable to attend VCF here is a Traffic '72 live concert from Santa Monica to listen to while watching videos.. Ed# https://www.youtube.com/watch?v=ocjSc7v83pk

10 years

1
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PDP-11 prices

by COURYHOUSE＠aol.com

do you collect microdata? we may have extra of their computer handbook. Ed# www/smecc.org In a message dated 8/7/2016 11:45:01 A.M. US Mountain Standard Time, jwsmail at jwsss.com writes: On 8/7/2016 11:02 AM, Noel Chiappa wrote: > So that most recent PDP-11/20 (well, technically, a /15) on eBay went for > $2200: > > http://www.ebay.com/itm/191933305000 > > which was a lot less than the other one _but_ this was only one drawer, only > one ME11 memory, no H960, no documentation, no software, no KT11-B, etc, etc. > > It looks like the high bidder was the under-bidder on the previous one. > > Noel > > I had my pockets cleaned (and still cleaning) at the consignment tables by Pavel and Vince S so far an 11/34 and Microdata paper tape reader punch.

10 years

1
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Video From VCF West

by COURYHOUSE＠aol.com

OK! thanks Charles! appreciate it! Thanks to all for the videos and photos ! Ed# In a message dated 8/7/2016 11:09:58 A.M. US Mountain Standard Time, charles.unix.pro at gmail.com writes: I On Sun, Aug 7, 2016 at 10:48 AM, <COURYHOUSE at aol.com> wrote: > Folks! in the opening part of this movie Jim pans past a large white > front panel with leds and switches looks like form a Honeywell > series... > more details or a close up and ask the owner more about it please? > > It's part of Jim Stephens' collection, and was lent to me for VCF. It is a maintenance panel off a 6180 series machine, like the panels in your collection. The roller is missing. The text in the upper left reads "ADDRESS/SAMPLE TALLY CONDITIONS" I'll take some pictures and send you a link. -- Charles

10 years

2
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PDP-11 prices

by COURYHOUSE＠aol.com

good to hear this assures me of the sanity of trading one of our 77 dx microphones for one and some other odd things In a message dated 8/7/2016 11:02:22 A.M. US Mountain Standard Time, jnc at mercury.lcs.mit.edu writes: So that most recent PDP-11/20 (well, technically, a /15) on eBay went for $2200: http://www.ebay.com/itm/191933305000 which was a lot less than the other one _but_ this was only one drawer, only one ME11 memory, no H960, no documentation, no software, no KT11-B, etc, etc. It looks like the high bidder was the under-bidder on the previous one. Noel

10 years

1
0
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Video From VCF West

by COURYHOUSE＠aol.com

Folks! in the opening part of this movie Jim pans past a large white front panel with leds and switches looks like form a Honeywell series... more details or a close up and ask the owner more about it please? Looks like a good show but I do not travel a lot #ed# In a message dated 8/7/2016 10:41:21 A.M. US Mountain Standard Time, jwsmail at jwsss.com writes: On 8/7/2016 7:36 AM, jim stephens wrote: > 6 videos from saturday, youtube playlist once more with the link https://www.youtube.com/playlist?list=PL5NK70kdq3-JGwb_8GXFN5SqDtbTKtLi7

10 years

2
1
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New photorealistic PDP-15 panel simulation for SimH

by j_hoppe＠t-online.de

Hi, here are some updates to the virtual Java panels for SimH ("BlinkenBone project"): * New PDP-15. This rare 18 bit machine is a dream in White & Blue! Now we have PDP-11/20, 11/40, 11/70, PDP-8/I, PDP10/KI10 and PDP-15. * Merged with official SimH 4, timestamp 2016-06-16 * Bugfix for light patterns on the PDP-11/70 panel in "DATA PATH" knob position. Now the "running snake" idle pattern of IAS is shown correctly. * Added a 2.11 BSD UNIX installation for PDP-11/70 (yet another idle pattern!) There are precompiled distribution for Win32, Ubuntu x86 & x64, Raspberry Pi and Beaglebone. Just unzip and start. Downloads: https://github.com/j-hoppe/BlinkenBone/releases Web start page: http://www.retrocmp.com/projects/blinkenbone And direct to the PDP-15: http://www.retrocmp.com/projects/blinkenbone/simulated-panels/255-simulated… Enjoy, Joerg

10 years

1
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VCF West - going?

by paul＠mcjones.org

Here are some photos from Saturday at VCF West: https://goo.gl/photos/GToKuQ33XwBenMJJA

10 years

1
0
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6800 memory addressing

by vintagecomputer＠bettercomputing.net

So I have the 6800 almost fully working, however I've hit one snag. ? I loaded some of the memory diags as a first test, from txt files posted online. ?The first couple worked ok, but the third kept hitting an error immediately on start. ? I thought little of it and was eager to try a bigger program. ?I tried Blackjack. ?However I noticed when it was loading.. instead of just the cursor remaining beside my L until loaded, it began dumping random stuff out. So that's when I went back to that RAM test. ?I noticed it has having the same issue with a certain range. ?I realized then that my single RAM board was only covering from (I think) A000 up to but not including C000.? So I used the jumpers on my DRC 16k boards to fill in the blanks, so to speak. ?But I'm stuck on the last one. ?The memory check now crashes at address 8000. ?Because my last MPM board was modified, I'm not sure how to get that particular range. ?I'm also wondering why I only get from A000 to C000 on my other MP-M board. ?The 16k boards can be set for wide ranges.. say 8000 through I think FFFF (can't look at the docs as SWTPC.COM went down tonight). ?I'm assuming the smaller RAM boards cover less? ?With three of the four installed, I can load a program via txt file without error but cannot run it.. if I hit G it just freezes there. ?So I'm not sure if I need to configure a ram board for $8000 up to $A000 or if I potentially have another problem. ?And because the MP-M boards are both modified.. I don't know what they are/were set up to do. Brad Sent from my Samsung device

10 years

2
2
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TRS-80 Trash Talk - Live Episode

by COURYHOUSE＠aol.com

be sure to send a reminder right before too! sounds great! I never owned one in the old days but cure saw them around and we do have them at SMECC museum project in the collection. In a message dated 8/7/2016 9:01:17 A.M. US Mountain Standard Time, pete at pski.net writes: https://www.facebook.com/events/1044642265619305/

10 years

1
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ISO: HP 110 AC Adapter

by derschjo＠gmail.com

Hey all -- Picked up some lovely junk at the VCF consignment table today, amongst which was an HP 110 with carrying case, floppy drive, thinkjet, and manuals (including the service manual!). Not included was a means to power this thing up. Anyone have a power supply going spare? (Maybe even someone coming to VCF tomorrow? :) Thanks as always, Josh

10 years

3
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Mall directory computers

by vintagecomputer＠bettercomputing.net

Been wondering about this for a while. Just one of those odd childhood memories. When I was a kid growing up in Oakville, Ontario, I remember Oakville Mall getting one of those very early mall directory computers. This would have been like, 1982-84, somewhere thereabouts. From what I remember, they had kind of CGA-sh graphics and a chiclet 'keyboard' you used to browse the directory. I'm wondering, were they just PCs, most likely? Or some kind of custom job?

10 years

6
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SWTPC 6800

by vintagecomputer＠bettercomputing.net

I've definitely got an MP-B. What I'm thinking is I'll use one of the socketed 16k boards and go through the RAMs to make sure I have good. ?But I'm having trouble understanding how to set the jumpers to get the addressing to A000. ?I thought I had that by the guide for the ram on the swtpc site (it's a Digital Research board). ?The machine only gets animated when that weird piggybacked mpm board is plugged in. I suppose if there are bad RAMs on the DR board that'd do it though. Brad Sent from my Samsung device -------- Original message -------- From: Chris Elmquist <chrise at pobox.com> Date: 2016-08-06 7:10 AM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: SWTPC 6800 Simplifying the machine configuration can help too.? You should only need MP-A (CPU), MP-S (serial interface) and MP-M at $A000 if you have the SWTBUG ROM.? It only needs 128 bytes of RAM at $A000 so an unexpanded (4K) or partially populated MP-M would be sufficient. If you have MIKBUG, then you need MP-C instead of MP-S since MIKBUG does not know how to talk to MP-S. Removing all the other cards temporarily could eliminate conflicts due to addressing, failed components, etc. With this minimal configuration, you should be able to get SWTBUG's "$" prompt.? MIKBUG will prompt with "*". Also, check which backplane board you have.? Depending on vintage, you may have MP-B or MP-B2.? MP-B2 allowed the I/O block address (normally at $8000) to be changed.? If you have MP-B2 and someone has customized the machine, then there will be more to figure out regarding where the I/O is really located, what the monitor ROMs expect, etc. http://www.swtpc.com/mholley/MP_B/MP_B_Index.htm http://www.swtpc.com/mholley/MP_B2/MP_B2_index.htm Chris On Friday (08/05/2016 at 10:47PM -0700), Brent Hilpert wrote: > Do you have some RAM at $A000+ yet? > That's all that should matter as far as required RAM goes. > > Presuming this is the holley page you were referring to: > http://www.swtpc.com/mholley/HiTerm/Test6800_Index.html > he does mention RAM needed at A000 for the BUGs, as Chris and I have been saying. > > Without RAM there there's no stack for return addresses for subroutines executed in the BUGs, so execution could head off to wherever. > > > On 2016-Aug-05, at 10:23 PM, Brad H wrote: > > Okay so.. I decided to try the MP-C board out, just for kicks.? No change. > > Then I decided to add one of the RAM boards.. the next one up in addresses.? Got a little bit when I powered on.? Added one of the old MPM boards.. one that has memory chips all piggybacked on one another.? Now when I powered up, the system was sending four or five characters at a time, linefeed, four or five characters at a time, linefeed ad infinitum.? I added the final MPM board.. zero. > > So.. I think we do have some ram problems.. most likely.? I'm thinking it would be easiest to concentrate efforts on the socketed RAM boards.. test all the RAM out.? I'm going to read up on addressing and try to understand a bit better what is going on.? I'm thinking maybe I need to reconfigure the addressing on one of the boards to match whatever that overstuffed MPM board is set to. > > Until I get an oscilloscope.. fooling around is about all I can do here. > > > > Sent from my Samsung device > > > > -------- Original message -------- > > From: Chuck Guzis <cclist at sydex.com> > > Date: 2016-08-05? 3:55 PM? (GMT-08:00) > > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > > Subject: Re: SWTPC 6800 > > > > On 08/05/2016 02:15 PM, Brad H wrote: > >> I think I will have to figure out how to do that.? Additionally I > >> have one of those PC based oscilloscopes on the way.? I don't know > >> how to use them 100% but I'm about to learn I guess. :) > >> > >> I have one more question for you guys -- I have a few CT-1024 > >> terminals and would really like this system to work with one of > >> those.? However, all of the CTs are quite delicate and are set I > >> think for 7, E, 2 @ 110 baud via soldered jumpers.? I'm a bit > >> reluctant to try pulling them apart to get in there and fix that.? Is > >> there a way to change the parity, etc settings on the SWTPC to match > >> the terminal?? Is it necessary? > > > > Well, 110 bps is a bit on the slow side--great for teletypes, not so > > much for video terminals.?? But you'll have to change the hardwired > > jumpers--the UART used in the CT1024 is not software-programmable. > > > > If this were my unit, I"d probably solder some pins into the pad holes > > and then either use slide on jumpers or wirewrap to set the > > characteristics.? That way, when changing things around, you won't be > > stressing the PCB. > > > > Something like this: > > > > http://www.ebay.com/itm/10PCS-20CFemale-to-Female-1-Pin-Plug-Jumper-Cable-W… > > > > Search on "female jumper wires" -- Chris Elmquist

10 years

2
4
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Yard sale goodies

by glen.slick＠gmail.com

On Aug 6, 2016 2:12 PM, "Joe Giliberti" <starbase89 at gmail.com> wrote: > > Greetings! > Went to a sale this morning and ended up with some neato pieces of > equipment. First are two Shugart 8 inch floppy drives ($1 each), a > microprocessor training kit ($30) and finally a RCA COSMAC dual 8 inch disk > drive ($5). One of the sellers told me to come back tomorrow because he's > going to dig out a bunch of other 70s and early 80s equipment. > https://postimg.org/image/gyjd3j16p/ > I can find no reference to either the microprocessor trainer for the cosmic > disk drive assembly online. Any information would be pretty cool to see. > > Thanks! > Joe Giliberti Those ICS microprocessor trainers show up on eBay from time to time. Erik has a page about them here. http://www.vintage-computer.com/ics.shtml

10 years

1
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VCF West - going?

by COURYHOUSE＠aol.com

surprised no one pulled off a live stream of this... In a message dated 8/6/2016 12:09:58 P.M. US Mountain Standard Time, billdegnan at gmail.com writes: Bruce Damer speaking now...incredible exhibits very talented exhibitors. .. hard to say what's "best"...taking lots of photos Bill Degnan twitter: billdeg vintagecomputer.net On Aug 6, 2016 11:51 AM, "Fritz Mueller" <fritzm at fritzm.org> wrote: > I'm headed down from Oakland now (Sat) and will be there most of the > afternoon. Looking forward to seeing all the goodies and meeting some > folks!

10 years

1
0
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TU56 Tape Heads

by michael.99.thompson＠gmail.com

During our PDP-12 debugging today we found that the left tape head has an open coil for data track 0. The left head was OK a little more than a year ago when we found the open coil in the right head. One TU56 head on my personal PDP-8/e also had an open coil when I got it. Our guess is the chemicals from the epoxy potting, possible flux residue, and poor soldering are causing the failures. Getting the epoxy potting out to repair the solder connection has proved impossible so far. Any source for three TU56 tape heads would be appreciated. We are also interested in ideas on how to get the epoxy potting out without destroying the head. -- Michael Thompson

10 years

4
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Somewhat amusing Grauniad article on retrieving old digital material

by lproven＠gmail.com

Germaine Greer's archive: digging up digital treasure from the floppy disks Archivists trying to preserve material stored in obsolete formats face a mighty challenge in retrieving decades of work by the Australian writer and feminist https://www.theguardian.com/books/2016/aug/05/germaine-greer-archive-digita… -- 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 Cell/Mobiles: +44 7939-087884 (UK) ? +420 702 829 053 (?R)

10 years

1
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VCF West - going?

by vintagecomputer＠bettercomputing.net

Is anyone shooting video for those of us that can't go? ?I really enjoyed the videos of VCF East I found on Youtube. ?I'll likely never get to one of these things being up here in Canada.. still fun to check out virtually. Brad Sent from my Samsung device -------- Original message -------- From: Curious Marc <curiousmarc3 at gmail.com> Date: 2016-08-05 3:03 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: VCF West - going? I'll be there with some of my HP equipment. On my way there soon. Marc Sent from my iPad > On Aug 5, 2016, at 10:08 AM, Ian Finder <ian.finder at gmail.com> wrote: > > I'll be there. Flying down from Seattle after work with an Amiga 4000 060 > and a GRiD in my carry-on. > I wanted to bring a Symbolics machine, but they happen to be quite heavy. ;) > > On Fri, Aug 5, 2016 at 10:01 AM, william degnan <billdegnan at gmail.com> > wrote: > >> I am here now, will be around all day helping set up.? I have not been to >> the CHM since the last VCF...The space for the event looks good, tables are >> out and waiting for exhibitors. >> >>> On Fri, Aug 5, 2016 at 12:07 PM, Josh Dersch <derschjo at gmail.com> wrote: >>> >>> On Thu, Aug 4, 2016 at 12:25 PM, Ali <cctalk at ibm51xx.net> wrote: >>> >>>>> I am heading to VCF West after a stop over in San Fran today...I am >>>>> looking forward to meeting up with everyone.? I will be there all day >>>>> Friday as a set-up volunteer, Sat and Sunday morning.? I was at the >>>>> last VCF before it was called "West" ... it's been too long. >>>> >>>> I am going to be there both days and look forward to meeting people In >>>> Real Life (TM). So should the list members get special badges or >>> something >>>> so people can know who is who? Or *GASP* are we going to have to be >>>> personable and talk to each other! :D >>>> >>>> -Ali >>> I'll be there co-running the Living Computer Museum's exhibit.? Stop by >> and >>> say hi! >>> >>> - Josh >> >> >> >> -- >> @ BillDeg: >> Web: vintagecomputer.net >> Twitter: @billdeg <https://twitter.com/billdeg> >> Youtube: @billdeg <https://www.youtube.com/user/billdeg> >> Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm> > > > > -- >?? Ian Finder >?? (206) 395-MIPS >?? ian.finder at gmail.com

10 years

2
1
0 0

MicroVax II update

by dj.taylor4＠comcast.net

Progress on getting the MVII up and running: I ordered the SCSI2SD adapter and it has come in, the plan is to use it as the system disk on the MVII. The hobbyist VMS PAKS have arrived and I was able to download the VMS 7.3 iso, not sure what I can do with it since I think it must be burned to a 512 byte sector CD. I asked if the PAKS were good for older versions of VMS, like 5.5, and was told yes they were. We'll see about that. The Hobbyist VMS CD I had for VMS 7.2 was found and I was able to get the old Toshiba CD drive to work on the MV 4000 using a CQD 223A. How can I create an image of these CD's on the VAX 4000 that I could use in an emulator? I wasn't able to get the UC07 to see the CDROM because of a bad SCSI cable, I had hoped to format the SCSI2SD using the UC07. Is it possible to use the SCSI2SD on a microPDP-11 under RT-11? I ask because of the disk size limit under RT-11. Doug

10 years

5
7
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IBM Diskette OEM Information manuals wanted

by spacewar＠gmail.com

Does anyone happen to have the IBM Diskette OEM Information manuals: GA21-9190 one-sided GA21-9257 two-sided I'm specifically NOT looking for the Diskette General Information Manual, GA21-9182, unless someone has an edition earlier than Fourth or later than Sixth. The OEM Information manuals were the definitive reference for the track formats for eight-inch diskettes. Generally equivalent information is available from a lot of later sources, including ECMA, ISO, and ANSI standards, and from vendor datasheets and application notes for floppy drives and floppy disk controller chips, though I've encountered a number of inaccuracies in vendor documentation. The ECMA standards are available online. I'm interested in the IBM OEM information manuals primarily for historical reasons, not because I'm missing any particular technical information. Thanks! Eric

10 years

1
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How to get a Heathkit H8 to work with a serial terminal

by dkelvey＠hotmail.com

Hi Note that the combo card does not work reliably above 4800 baud. It feeds the serial through an optical isolator, even when doing RS232. It is really intended to do current loop at lower speeds. Dwight ________________________________ From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Bill Sudbrink <wh.sudbrink at verizon.net> Sent: Monday, August 1, 2016 6:01:21 PM To: 'General Discussion: On-Topic and Off-Topic Posts' Subject: RE: How to get a Heathkit H8 to work with a serial terminal Try in the SEBHC group: sebhc at googlegroups.com

10 years

1
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[IBM1130] 029 keypunch available

by ball.of.john＠gmail.com

Make this yet another person as well in BC who would be jumping on it . I got almost no use for a card reader if I have no way to punch the cards. >Ditto. I'd be all over that if I wasn't in BC.

10 years

1
0
0 0

SWTPC 6800

by vintagecomputer＠bettercomputing.net

Okay thanks. ?I gues where I'm getting confused is Michael Holley's guide to new 6800 users says because of the 6810 being cut you want RAM at $A000.. what you're suggesting sounds like the opposite? ?Maybe I'd better reread those instructions. Sent from my Samsung device -------- Original message -------- From: Brent Hilpert <hilpert at cs.ubc.ca> Date: 2016-08-05 10:52 AM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: SWTPC 6800 On 2016-Aug-05, at 9:55 AM, Brad H wrote: > > 3) Ah, this may be part of my problem.? I don't quite understand memory > addressing yet.? The instructions said you needed RAM at A000 if the 6810 > chip was disabled (which it appears to be, the correct trace is cut).? My > machine has 4 RAM boards.? 2 are MPM, 2 are 16K DRC boards.? For whatever > reason, the DRC boards are config-ed to be first (0000-3FFF) and second > (4000-7FFF).?? Trying to strip the machine down and have as little RAM as I > could get away with, I just installed the single board at 0000-3FFF.? These > boards are (thank god) socketed, so I have some means of testing and > removing RAM.? The MP-M boards are not socketed, so I don't want to mess > with those until I have to.? I could config the second DRC board for the > $Exxx-$Fxxx and shove it in there. Don't take my word on the specific address, I should have just said you need some RAM in high mem. The 6810 was there to fulfill that need of RAM for the xxxBUG monitor. You might reenable it, or config a RAM board to cover that range (A000? to ?). But if you use a RAM board you have to config it so it doesn't extend up into (overlap) the ROM and IO address space. (I have a memory map for this on another machine not set up at this time). (For purposes of exercising the xxxBUG monitors you don't need memory down at $0000.)

10 years

2
1
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SWTPC 6800

by vintagecomputer＠bettercomputing.net

Yeah to be honest.. I'm not sure I'm the biggest serial terminal computer fan. ?I find them way harder to diagnose than computers with video cards. ?But, the SWTPC is an iconic system.. so I'll just keep muddling until I figure it out. Sent from my Samsung device -------- Original message -------- From: Fred Cisin <cisin at xenosoft.com> Date: 2016-08-05 11:25 AM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: RE: SWTPC 6800 On Fri, 5 Aug 2016, Brad H wrote: > I then tried 7 N 1 (that's how my CT1024 terminal is set up).? This time I > got more consistent characters.? If I hit reset, there is also a response. If and when you get consistent characters, no matter how wrong, then it's time to look at the bit patterns of what you get V what you expect? (is anybody around who knows?) Since, obviously, if consistent, then it might be right except for one or more bits stuck on or stuck off. Yes, it is frustrating.

10 years

1
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DEC Transistor assortment on Ebay

by wsudol＠freedom.com

Just spyed this on Ebay - a box of DEC Transistors for sale. Might be useful to have if you like to repair DEC boards. http://www.ebay.com/itm/DEC-DIGITAL-EQUIPMENT-CORPORATION-TRANSISTOR-ASSORT… Wayne

10 years

3
3
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SWTPC 6800

by vintagecomputer＠bettercomputing.net

Thought I would post this here in case it reaches eyes my forum posts don't. ?So I finally got my hands on a SWTPC 6800! ? This machine is chock full of boards.. 4 ram boards, the cpu card (with SWTBUG ROM), MP-S, MP-C serial cards, a floppy controller, some little custom board, a sound card.. etc. This presents some challenges obviously, since the machine has been altered from stock it could be tricky getting it running. Before I had it stripped down, I tried powering up as is (i pulled the older MP-C card and put MP-S in slot 1). ?This produced little except for a string of random characters that would repeat every time I hit reset, exactly the same number. I tried stripping it down to CPU card, MP-S, and the RAM board designated as '0'.. but all I get at the terminal end is a single random character on power up. ? I then thought I'd try my luck putting the CPU card in my working MSI system (taking out its card). ?Nope. ? Now, because my CPU card has been modified to accomodate SWTBUG and possibly something else, I'm not sure if it'll even work in a stripped down config. ?Not sure about the interplay between boards. Anyway.. if anyone has any thoughts to point me in the right direction I'd be most appreciative. ?Ultimately I'd like to get this beast working with my CT1024 terminals. Brad Sent from my Samsung device

10 years

8
10
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Tektronix 6800 'Developer Computer'

by vintagecomputer＠bettercomputing.net

Hey guys, In addition to that 6800 SWTPC I got, I also picked up this 'board bucket' >from ebay: http://s1381.photobucket.com/user/unclefalter/library/Tektronix%206800%20Dev eloper%20Computer?sort=3 <http://s1381.photobucket.com/user/unclefalter/library/Tektronix%206800%20De veloper%20Computer?sort=3&page=1> &page=1 It's a 6800 system of sorts and has BASIC and 'DDE' ROMs. I've tried hooking it up to a terminal but no response. I think the system isn't fully running. This is a video I took: https://www.youtube.com/watch?v=7YSUuF6xTAg Hard to see with the camera, but when you hit and hold reset the little display looks sort of normal. When you release, it's like some of the segments are half-on rather than fully on or off. I tried pulling RAM boards and such but no action yet. Step button on the CPU card doesn't do anything. If anyone has seen one of these or has any ideas on getting her working, I'd be most interested. I sent an email to Tektronix to inquire about it as there are part numbers and stuff on the boards. Hopefully they can answer questions. Brad

10 years

2
3
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VCF books (Was: Is MS-DOS, PC DOS and DR-DOS vintage enough

by cctalk＠ibm51xx.net

I don't know about using eBay as things are all over the place. I have paid from $0.99 + s&h to $29.99 w/ free shipping (for something that is useful e.g. HMS for 5150 in unopened condition). My average seems to be $9.99 for more popular stuff and $4.99 for esoteric stuff (say GTO to the 7327 plotter). Every once in a while things sell for crazy prices (do you really need the TR to the cluster network for $90?). What sells high seems to be SW specially DOS 1.0 and IBM branded CP/M. Those are fetching >$500 these days. Just my two cents.... -Ali

10 years

1
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Is MS-DOS, PC DOS and DR-DOS vintage enough to count?

by lproven＠gmail.com

I'm experimenting with some old DOS versions, notably PC DOS, in VirtualBox. I have a PC-DOS 2000 system with DesqView and DesqView/X working fairly well -- no networking yet but I'm working on it. I am also trying to get a DR-DOS 8 VM up and running. DR-DOS 7.03 is no problem, but I've had no joy getting DR-DOS 8.1 to install to hard disk. It's reluctant to SYS a hard disk, and when it did, it mis-diagnosed it as FAT-12 and wouldn't boot. Using Norton DiskTools, I've managed to transfer the system files, but they display the message DR-DOS 8.1 ... and then it freezes. Can this late version, mainly used for utility floppies, actually boot >from HD & be used like a normal DOS? And although I've not tried it yet, the same question applies to PC DOS 7.1, the early-noughties version that can understand FAT32 and long filenames. -- 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 Cell/Mobiles: +44 7939-087884 (UK) ? +420 702 829 053 (?R)

10 years

9
18
0 0

Bill Gates: Windows 95 Was 'A High Point'

by vintagecomputer＠bettercomputing.net

I would call Win 95 a high point also. ?I lived near Toronto at the time and remember the unfurling of a huge Win 95 banner down one side. ?There were events everywhere. ?MS was really at their zenith. The excitement around that launch was like nothing since. ?I believe I got swept up and installed it immediately but shortly after removed it. ?Couldn't get used to the interface. ?Eventually for one reason or another I had to and did go back to it. ?Wasn't the greatest or most stable OS and was kind of a half breed at that, but man.. what I wouldn't give to feel the anticipation again, the difference between it and DOS. ?Nothing released on either PC or Mac has come close. Brad Sent from my Samsung device -------- Original message -------- From: Cameron Kaiser <spectre at floodgap.com> Date: 2016-08-01 4:25 PM (GMT-08:00) To: cctalk at classiccmp.org Subject: Re: Bill Gates: Windows 95 Was 'A High Point' > > <https://tech.slashdot.org/story/08/05/28/2214214/bill-gates-windows-95-was-…> > http://cdn.cultofmac.com/wp-content/uploads/2015/08/introducing.gif I have a "Windows '95 = Macintosh '89" pin on my iMac G4, as seen here: http://www.theapplecollection.com/Collection/pin/PinsBadges.html -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- ? Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Business is war. -- Jack Tramiel -------------------------------------------

10 years

6
6
0 0

Keyboards etc.

by vintagecomputer＠bettercomputing.net

Definitely interested in any MDS/keypunch stuff. ?By no means am I done with the TVT.. just assembling all the vintage resistors and bits to get assembly going. ?I was hoping to have an MDS keyboard as is just to show people what the prototype came from. I would definitely be interested in an AC-30. ?Without question. ?Let me know! Brad Sent from my Samsung device -------- Original message -------- From: Mike Stein <mhs.stein at gmail.com> Date: 2016-08-04 10:34 AM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Keyboards etc. ... Same here; I long for the good old days when they just asked where you were born... So, looks like you've pretty well finished your TV typewriters, so can I assume that you don't want/need any of the MDS etc. keyboard stuff we talked about long ago? Also, since you're into SWTPC stuff, would you be interested in an AC-30 to go between your CT-1024 and 6800 (assuming I can find it)? http://www.swtpc.com/mholley/AC30/AC30_Index.htm mike ----- Original Message ----- From: "Brad H" <vintagecomputer at bettercomputing.net> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Sent: Thursday, August 04, 2016 10:33 AM Subject: Re: SWTPC 6800 > >??? > Thanks Jim! > Wish I could go but I'm up in BC and haven't renewed my passport in a couple of years. One of these days for sure though. > Brad > > > Sent from my Samsung device > > -------- Original message -------- > From: jim stephens <jwsmail at jwsss.com> > Date: 2016-08-03? 11:54 PM? (GMT-08:00) > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > Subject: Re: SWTPC 6800 > > > > On 8/3/2016 10:58 PM, Brad H wrote: >> >> Thought I would post this here in case it reaches eyes my forum posts don't. So I finally got my hands on a SWTPC 6800! >> This machine is chock full of boards.. 4 ram boards, the cpu card (with SWTBUG ROM), MP-S, MP-C serial cards, a floppy controller, some little custom board, a sound card.. etc. >> This presents some challenges obviously, since the machine has been altered from stock it could be tricky getting it running. >> Before I had it stripped down, I tried powering up as is (i pulled the older MP-C card and put MP-S in slot 1). This produced little except for a string of random characters that would repeat every time I hit reset, exactly the same number. >> I tried stripping it down to CPU card, MP-S, and the RAM board designated as '0'.. but all I get at the terminal end is a single random character on power up. >> I then thought I'd try my luck putting the CPU card in my working MSI system (taking out its card). Nope. >> Now, because my CPU card has been modified to accomodate SWTBUG and possibly something else, I'm not sure if it'll even work in a stripped down config. Not sure about the interplay between boards. >> Anyway.. if anyone has any thoughts to point me in the right direction I'd be most appreciative. Ultimately I'd like to get this beast working with my CT1024 terminals. >> Brad >> > I saw an SWTPC booth registered at VCF West, maybe you should drop by. > I'll look in and see what they have and maybe they can help too. > > Only SWTPC gizmo I have is one of their audio amplifiers somewhere in > the pile. Picked up at TRW Swap Meet. > Thanks > jim >

10 years

1
0
0 0

more vintage computer stuff

by sales＠elecplus.com

Sorry guys, but it seems there was a take all buyer from CA who took the entire lot. It is no longer available. Cindy Croxton Electronics Plus 500 Pershing Ave. Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com AOL IM elcpls

10 years

9
16
0 0

SWTPC 6800

by henk.gooijen＠hotmail.com

Sorry list, now trying top post ? somehow my typed tekst goes into a bit bucket. Back in the seventies (well, 1979-1980) I had a 6800-based modular system in a 19" rack, 3HE high. One Euro-card was the 6800 CPU, another Euro-card was 8k RAM ("famous" 2112?s IIRC), one Euro-card with 8 sockets for 2716 EPROMs. Plus a self-made cassette interface. I still remember buying two 2716 EPROMs for 313 Guilders! That was a lot of money for a poor student! Two years later I bought a generic floppy disk interface and 5.25? TEAC FD50 floppy drive (SS/SD) and wrote my own ?DOS?. Took 8 months, but I no longer needed the cassette interface. A small bookshop in Amsterdam (Computer Collectief) sold great books (at that time) for the real hobbyist. That way I got the TSC Editor, TSC Assembler, TSC Linker and TSC Debugger. And it all came with source listings, so I could hack away my own interface routines :-) With the TSC software I developed my first StarShip assembler code. It was some 10 to 14 files which you assembled to "relocatables". Subsequently you used the linker to create the "absolute" from the relocatables. Worked really well. Those were the days! I still have the 6800 system, Build-It-Yourself keyboard and monitor. I wonder whether the EPROMs would still have all bits OK, after 35 years. Fond memories, - Henk PS. I have a 6800 source listing of StarTrek, not sure that came from TSC! Van: Toby Thain<mailto:toby at telegraphics.com.au> Verzonden: donderdag 4 augustus 2016 17:11 Aan: cctalk at classiccmp.org<mailto:cctalk at classiccmp.org> Onderwerp: Re: SWTPC 6800 On 2016-08-04 8:19 AM, william degnan wrote: > ... > All of this is well documented online, Mike Holley has a step by step set > up on his site. A few years ago I retyped the entire code listing of TSC > BASIC which can be downloaded into bare bones SWTPC 6800 > Same one as this? http://www.swtpc.com/mholley/TSC_MicroBasic/TSC_MicroBasic.htm --Toby

10 years

1
0
0 0

SWTPC 6800

by henk.gooijen＠hotmail.com

Van: Henk Gooijen<mailto:henk.gooijen at hotmail.com> Verzonden: donderdag 4 augustus 2016 19:44 Aan: Toby Thain<mailto:toby at telegraphics.com.au> Onderwerp: RE: SWTPC 6800 Van: Toby Thain

10 years

1
0
0 0

SWTPC 6800

by vintagecomputer＠bettercomputing.net

Thanks Jim! Wish I could go but I'm up in BC and haven't renewed my passport in a couple of years. ?One of these days for sure though. Brad Sent from my Samsung device -------- Original message -------- From: jim stephens <jwsmail at jwsss.com> Date: 2016-08-03 11:54 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: SWTPC 6800 On 8/3/2016 10:58 PM, Brad H wrote: >????? > Thought I would post this here in case it reaches eyes my forum posts don't.? So I finally got my hands on a SWTPC 6800! > This machine is chock full of boards.. 4 ram boards, the cpu card (with SWTBUG ROM), MP-S, MP-C serial cards, a floppy controller, some little custom board, a sound card.. etc. > This presents some challenges obviously, since the machine has been altered from stock it could be tricky getting it running. > Before I had it stripped down, I tried powering up as is (i pulled the older MP-C card and put MP-S in slot 1).? This produced little except for a string of random characters that would repeat every time I hit reset, exactly the same number. > I tried stripping it down to CPU card, MP-S, and the RAM board designated as '0'.. but all I get at the terminal end is a single random character on power up. > I then thought I'd try my luck putting the CPU card in my working MSI system (taking out its card).? Nope. > Now, because my CPU card has been modified to accomodate SWTBUG and possibly something else, I'm not sure if it'll even work in a stripped down config.? Not sure about the interplay between boards. > Anyway.. if anyone has any thoughts to point me in the right direction I'd be most appreciative.? Ultimately I'd like to get this beast working with my CT1024 terminals. > Brad > I saw an SWTPC booth registered at VCF West, maybe you should drop by.? I'll look in and see what they have and maybe they can help too. Only SWTPC gizmo I have is one of their audio amplifiers somewhere in the pile.? Picked up at TRW Swap Meet. Thanks jim

10 years

2
1
0 0

FW: [IBM1130] 029 keypunch available

by dave.g4ugm＠gmail.com

Clare Owens <clare.owens at gmail.com> From: ibm1130 at googlegroups.com [mailto:ibm1130 at googlegroups.com] On Behalf Of Clare Owens Sent: 04 August 2016 13:30 To: ibm1130 at googlegroups.com Subject: Re: [IBM1130] 029 keypunch available Sure, the more the merrier. Thanks, Clare On Thu, Aug 4, 2016 at 2:59 AM, Dave Wade <dave.g4ugm at gmail.com <mailto:dave.g4ugm at gmail.com> > wrote: Clare, Do you mind if I forward this to some other lists. I am sure there will be lots of interest. Dave From: ibm1130 at googlegroups.com <mailto:ibm1130 at googlegroups.com> [mailto:ibm1130 at googlegroups.com <mailto:ibm1130 at googlegroups.com> ] On Behalf Of Clare Owens Sent: 03 August 2016 20:55 To: ibm1130 at googlegroups.com <mailto:ibm1130 at googlegroups.com> Subject: [IBM1130] 029 keypunch available My son Bill just reminded me that I should write and ask whether anyone would be interested in an 029 keypunch, pickup only in Syracuse, NY. It is complete but the cables were disconnected in order to move it in pieces several years ago. There are many spare parts (from another 029 taken apart years ago) and it has the complete CE documentation. Free to someone who will give it a good home and take care of it. Clare Owens Apex, NC -- You received this message because you are subscribed to the Google Groups "IBM1130" group. To unsubscribe from this group and stop receiving emails from it, send an email to ibm1130+unsubscribe at googlegroups.com <mailto:ibm1130+unsubscribe at googlegroups.com> . For more options, visit https://groups.google.com/d/optout.

10 years

3
2
0 0

RE: RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case drive diff?)

by couryhouse＠aol.com

OK will check when back at real computer? Sent from my Verizon, Samsung Galaxy smartphone -------- Original message -------- From: Dave Wade <dave.g4ugm at gmail.com> Date: 8/4/16 07:35 (GMT-07:00) To: "'General Discussion: On-Topic and Off-Topic Posts'" <cctalk at classiccmp.org> Subject: RE: RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case drive diff?) In the DEC area. Sorry in Spain at present and can't get to the Forums. Dave > -----Original Message----- > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of > COURYHOUSE at aol.com > Sent: 04 August 2016 08:27 > To: cctalk at classiccmp.org > Subject: Re: RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case drive > diff?) > > link? to??? area? or topic? Please? > > > In a message dated 8/4/2016 12:00:45 A.M. US Mountain Standard Time, > dave.g4ugm at gmail.com writes: > > There? was some discussion on this on the VCFED forums. Might be worth? a > read. > > Dave > > > -----Original Message----- > > From:? cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of > > Richard? Cini > > Sent: 03 August 2016 11:51 > > To: General Discussion:? On-Topic and Off-Topic Posts > > <cctalk at classiccmp.org> > >? Subject: Re: RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath > case > drive > > diff?) > > > > Are you referring to having the? H-27 drive from Heath? I don't know > > for > sure > > because I've never? seen H27 docs, but the disk capacity is the same > > as > the > > RX01 (256k)? and I think the interface was made deliberately > > incompatible, likely? at the behest of DEC. The version of RT-11 > > (called? HT-11) > supposedly > > used a different floppy device driver. > > > > Again, this is based solely on what I've read from various places and > > not direct experience (I have an H-11 with a SCSI controller; no > > floppy; and > it runs > > RT-11 no problem). > > > >? Rich > > > > Sent from my iPhone > > > > > On Aug 3,? 2016, at 1:40 AM, COURYHOUSE at aol.com wrote: > > > > > > we have? a heath? h11? which is lsi 11?? aka pdp?? 11/03 > > > > > > the? drives? are not? rx o1? or? rx o2... but are they? and the > > > controller? comparable? with rx01? or? an rx02? > > > > > >? Thanks? Ed# at??? smecc > >

10 years

1
0
0 0

PDP-8 _Introduction_to_Programming_ & _Programming_Languages_(Scanned) Covers Needed

by anders＠abc80.net

>Does anyone have DEC's PDP-8 _Introduction_to_Programming_, Editions 3 >and/or 4 and/or the PDP-8 _Programming_Languages_ handbooks? > >If you're not willing to part with your copy, could you scan the front >covers of these handbooks and tell me which Edition(s) they are from? >I'm >especially looking for the front cover that had the "format generator >program" printed on it in the background. > >I'm also looking for DEC's PDP-8 _Programming_Languages_. If you are not >willing to part with them, could you scan the front cover and tell me >which >Edition(s) it/they are from? I have the second, fourth and fifth edition of "introduction to programming". The fourth and fifth edition looks the same. I'll send a scanned cover of fourth edition to Bob. I'm not willing to part with any of them. /Anders

10 years

2
1
0 0

SWTPC 6800

by vintagecomputer＠bettercomputing.net

Yes thankfully the previous owner labelled everything. ?The cards seem to be in great physical shape, however the motherboard does have a bit of corrosion here and there. PSU checked out ok in preliminary testing. The CPU card appears to be set up for Flex.. the expected jumper is cut and it looks like the 6810 onboard is bypassed. If I read Michael Holley's guide right that just means I need my first RAM board configured as '0'.. but that was the case already.. not sure why that would ever not be the case. Baud rate seems to be set correctly.. at least by the hand written label next to the dip switches on both cards. Sent from my Samsung device -------- Original message -------- From: william degnan <billdegnan at gmail.com> Date: 2016-08-04 5:19 AM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: SWTPC 6800 On Aug 4, 2016 2:54 AM, "jim stephens" <jwsmail at jwsss.com> wrote: > > > > On 8/3/2016 10:58 PM, Brad H wrote: >> >>????? Thought I would post this here in case it reaches eyes my forum posts don't.? So I finally got my hands on a SWTPC 6800! >> This machine is chock full of boards.. 4 ram boards, the cpu card (with SWTBUG ROM), MP-S, MP-C serial cards, a floppy controller, some little custom board, a sound card.. etc. >> This presents some challenges obviously, since the machine has been altered from stock it could be tricky getting it running. >> Before I had it stripped down, I tried powering up as is (i pulled the older MP-C card and put MP-S in slot 1).? This produced little except for a string of random characters that would repeat every time I hit reset, exactly the same number. >> I tried stripping it down to CPU card, MP-S, and the RAM board designated as '0'.. but all I get at the terminal end is a single random character on power up. >> I then thought I'd try my luck putting the CPU card in my working MSI system (taking out its card).? Nope. >> Now, because my CPU card has been modified to accomodate SWTBUG and possibly something else, I'm not sure if it'll even work in a stripped down config.? Not sure about the interplay between boards. >> Anyway.. if anyone has any thoughts to point me in the right direction I'd be most appreciative.? Ultimately I'd like to get this beast working with my CT1024 terminals. >> Brad >> > I saw an SWTPC booth registered at VCF West, maybe you should drop by. I'll look in and see what they have and maybe they can help too. > > Only SWTPC gizmo I have is one of their audio amplifiers somewhere in the pile.? Picked up at TRW Swap Meet. > Thanks > jim You need to start with the power supply.?? Verify it's ok. Then work through each card's jumpers to see how they are set.? For example the MP-S has baud rate setting options, and the card can be used with a Teletype or RS232 terminal.? 1200 is max baud. If you're getting a consistent but garbled output to the screen did you confirm the baud rate you're using matches the MP-S jumpers? All of this is well documented online, Mike Holley has a step by step set up on his site.? A few years ago I retyped the entire code listing of TSC BASIC which can be downloaded into? bare bones SWTPC 6800

10 years

1
0
0 0

RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case drive diff?)

by COURYHOUSE＠aol.com

link to area? or topic? Please? In a message dated 8/4/2016 12:00:45 A.M. US Mountain Standard Time, dave.g4ugm at gmail.com writes: There was some discussion on this on the VCFED forums. Might be worth a read. Dave > -----Original Message----- > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Richard > Cini > Sent: 03 August 2016 11:51 > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk at classiccmp.org> > Subject: Re: RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case drive > diff?) > > Are you referring to having the H-27 drive from Heath? I don't know for sure > because I've never seen H27 docs, but the disk capacity is the same as the > RX01 (256k) and I think the interface was made deliberately incompatible, > likely at the behest of DEC. The version of RT-11 (called HT-11) supposedly > used a different floppy device driver. > > Again, this is based solely on what I've read from various places and not > direct experience (I have an H-11 with a SCSI controller; no floppy; and it runs > RT-11 no problem). > > Rich > > Sent from my iPhone > > > On Aug 3, 2016, at 1:40 AM, COURYHOUSE at aol.com wrote: > > > > we have a heath h11 which is lsi 11 aka pdp 11/03 > > > > the drives are not rx o1 or rx o2... but are they and the > > controller comparable? with rx01 or an rx02? > > > > Thanks Ed# at smecc

10 years

2
1
0 0

VCF West tickets

by cctalk＠snarc.net

Pre-order ticket sales for VCF West end tomorrow at midnight ET. More available at the gate. https://t.co/kHKFAAn0TB

10 years

10
19
0 0

Random stuff in Belgium

by jon＠jonworld.com

All, I was surfing our local website which is essentially "Belgian Craigslist" and found some vintage ads. I'm curious about this and too lazy to google on my own. It looks like these are Sony PCs with robot arms which can be controlled? http://www.2ememain.be/informatique-jeux-vid%C3%A9o/bureautique/286-et-plus… He's about 50-60km from me if someone wants/needs me to snag anything. If there is other stuff around here you're interested in, please let me know. -- -Jon +32 0 486 260 686

10 years

2
1
0 0

RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case drive diff?)

by COURYHOUSE＠aol.com

we have a heath h11 which is lsi 11 aka pdp 11/03 the drives are not rx o1 or rx o2... but are they and the controller comparable? with rx01 or an rx02? Thanks Ed# at smecc

10 years

3
2
0 0

HP 2100A Restoration

by perlpowers＠gmail.com

Hi, I recently acquired a pair of HP 2100A minicomputers locally for very cheap. Don't think I could get much more local that a guy literally at the end of my street. He bought them at an auction over ten years ago, never powered them on, and left them in his garage since. They've likely never been powered up since they were last in regular use. The units seem to be complete, apart from missing a few I/O cards that are written onto the top of the power supply. I don't plan to power them up until I've taken them apart, cleaned all the dirt and debris from them, and inspected the power supply. With regards to the power supply, I'm thinking my best bet would be to do a power on with no cards in the system. Though I'm not sure if all the power rails would even come up without a load on it, since it sounds like it may do some power sequencing from what I've read. I was wondering if anyone has some experience with testing a similar power supply that hasn't been run in at least 10 years? I'm not sure if using a variac to slowly warm up the supply and the caps would be wise on one of these power supplies. I'm not sure how the switching supplies would handle the low voltage at the start. The only I/O card that was installed in both machines, besides a terminator board in only one of them, is a serial interface made by some company with the logo CMC. It uses a COM2502 UART which I was surprised to find a datasheet for, however I haven't found any information on the card itself. I have a photo of the card in the album linked below if anyone has any information on it. I know this email is getting a bit long, but with regards to the memory both machines have a ID(16K) driver board, and two core modules. However one machine has both core modules marked 02100-60052 on the bridge, and the other has one marked 02100-60052 and the other 02100-60054. Is there any difference between these modules? I'd assume by the 16K driver in both, that all of the core modules are 8KW modules. Would that just be a later revision or is one a different size? I've taken some photos of the machines and put them here: https://goo.gl/photos/z2tGBbNvekwrxS5L9 I'll be taking more after I make some space to start taking the units apart for cleaning and inspection. I've also included photos of the serial numbers and other badges on the backs if anyone knows of a resource to decode them. I'd very much appreciate any help or suggestions that people have. I really want to get at least one of these machines back into full working order to have some fun programming with. Thanks, Hayden K.

10 years

12
22
0 0

Irix 5.3 drivers

by pete＠dunnington.plus.com

I realise this is a bit of a long shot, but does anyone have the driver CD "GIO Fast Ethernet 1.0 for Irix 5.3 and 2.0 for Irix 6.2", SGI part number 812-0576-001? This is the drivers for SGI's own Fast Ethernet card, not the Phobos/3Com ones. -- Pete Pete Turnbull

10 years

3
3
0 0

8 inch disks - help needed identifying format

by denise.devries＠flinders.edu.au

I am trying to preserve data from a selection of 8inch disks and the only information I have is some printouts which I believe to be HP CAT reports. The first couple of lines are as follows NAME PRO TYPE REC/FILE BYTES/REC ADDRESS H8,0,1 148 ALT-A DATA 1 1188 0/1/0 Can anyone answer the following questions? Is this an HP CAT report? What does the H8,0,1 mean? Is it likely that there are 1188 bytes/rec? What does the address 0/1/0 resolve to? Any information would be most welcome Denise de Vries ________________________________

10 years

3
2
0 0

RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case drive diff?)

by COURYHOUSE＠aol.com

Rich - correct. That is the disc we have here. Just wondering in case We ever got a pdp-8 with disc interface or a standard unibus PDP 11 here at SMECC . We have an 11/20 but of course not much memory and no disc controller so it sits. Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 8/3/2016 3:51:20 A.M. US Mountain Standard Time, rich.cini at verizon.net writes: Are you referring to having the H-27 drive from Heath? I don't know for sure because I've never seen H27 docs, but the disk capacity is the same as the RX01 (256k) and I think the interface was made deliberately incompatible, likely at the behest of DEC. The version of RT-11 (called HT-11) supposedly used a different floppy device driver. Again, this is based solely on what I've read from various places and not direct experience (I have an H-11 with a SCSI controller; no floppy; and it runs RT-11 no problem). Rich Sent from my iPhone > On Aug 3, 2016, at 1:40 AM, COURYHOUSE at aol.com wrote: > > we have a heath h11 which is lsi 11 aka pdp 11/03 > > the drives are not rx o1 or rx o2... but are they and the controller > comparable? with rx01 or an rx02? > > Thanks Ed# at smecc

10 years

1
0
0 0

Differences between the PDP-11/15 and PDP-11/20

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > It would have to be a Unibus bridge type device, i.e., it terminates > the Unibus from the CPU, and at the other end originates a Unibus with > mapped addresses on it. Oh, right you are - I hadn't worked that out. (Probably because my head is still full of KT24 stuff, which doesn't have two totally separated busses. :-) > That assumes the KT11-B does only memory mapping, not the other things > that other MMUs do (user vs. kernel mode, I/D space .. ). I don't think it can; those would require hooks into the CPU, and there are no signs of such, in the pictures. Noel

10 years

1
0
0 0

8 inch disks - help needed identifying format

by denise.devries＠flinders.edu.au

Thanks Rik I also should have asked what does 148 mean? NAME PRO TYPE REC/FILE BYTES/REC ADDRESS H8,0,1 148 ALT-A DATA 1 1188 0/1/0 Denise

10 years

2
2
0 0

MicroVax II

by glen.slick＠gmail.com

On Aug 3, 2016 3:10 AM, "Peter Coghlan" <cctalk at beyondthepale.ie> wrote: > > > > > Also, the built in SCSI on a VAX 3100 doesn't support drives over 1GB. > > > > That's not quite correct. > Yeah, more details than I could be 100% accurate about off the top of my head and had the patience to type with one thumb. The only point was to mention that if some systems have issues with SCSI drives due to their capacity alone you can usually soft resize the drive smaller. No need to pay a premium for older SCSI drives of 1GB native capacity or smaller.

10 years

1
0
0 0

Differences between the PDP-11/15 and PDP-11/20

by jnc＠mercury.lcs.mit.edu

> From: Steven Malikoff > I'm wondering if there are any more differences apart from the lack of > the two high address switches? According to the -11/15-20 processor manual (pg. 2), the differences between the two are i) the -15 has only one hardware interrupt level, not four (the latter is optional), and ii) power-fail restart is an option, not standard. > Presumably the /15 could not run one of those KT-11 paging units I'm not sure how the KT11-B works, but my _suspicion_ (going from the pictures of that one that sold on eBay) is that it's not part of the CPU, but a UNIBUS device, which maps part of the UNIBUS which the CPU _can_ see (i.e. in the 0-56KB range) up to higher addresses, where the 'extra' memory is configured. If that supposition is correct, it would work equally well on any -11 (without built-in memory mapping in the CPU). Noel

10 years

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Differences between the PDP-11/15 and PDP-11/20

by steven＠malikoff.com

A few months back you might recall the road trip I did to recover a Foxboro FOX-2, a rebadged PDP-11 that ran the furnace oxygenation plant at the BHP steel mill at Port Kembla here in Oz during the 1970s. I had thought the machine was an 11/20 with a custom FOX front panel that (apart from the Foxboro lime green colour trim) had only 16 address switches instead of the 18 found on that machine, and that there might be two more vacant switch locations on the front panel PCB to be found lurking underneath when it came time to disassembling. But having just seen the PDP-11/15 up on eBay, I now believe that is what the FOX-2 really is. This page (http://gunkies.org/wiki/PDP-11/20) reckons the /15 is just an OEM version of the /20 but I'm wondering if there are any more differences apart from the lack of the two high address switches? (Presumably the /15 could not run one of those KT-11 paging units as was seen on that recent eBay 11/20) Steve.

10 years

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PDP-8 _Introduction_to_Programming_ & _Programming_Languages_(Scanned) Covers Needed

by bobvines00＠gmail.com

Does anyone have DEC's PDP-8 _Introduction_to_Programming_, Editions 3 and/or 4 and/or the PDP-8 _Programming_Languages_ handbooks? If you're not willing to part with your copy, could you scan the front covers of these handbooks and tell me which Edition(s) they are from? I'm especially looking for the front cover that had the "format generator program" printed on it in the background. I'm also looking for DEC's PDP-8 _Programming_Languages_. If you are not willing to part with them, could you scan the front cover and tell me which Edition(s) it/they are from? Thanks, Bob

10 years

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MicroVax II

by dj.taylor4＠comcast.net

I just got a MicroVax II in the BA123 world box chassis. I has a TK50, RX50, RXDQ2, but no DEQNA. I'd like to get it running an OS. The DU disks don't work, but I have a couple of Qbus SCSI controllers that might come in handy. Can you use those SD to SCSI convertors in this type of configuration? Anyone have experience with this? What OS's can I use with this hardware? NetBSD? Are versions of VMS available? How do you get an OS onto this system?

10 years

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HP 2100A Restoration

by COURYHOUSE＠aol.com

yes we used to at computer exchange inc... we had a bunch of blank I/o boards with the i/o special chips traces on the corner of board we would populate that portion then built out the rest..... rest of board was like a prototype board I scored a stack of them at a san jose computer junk show one time. we have voice synth that would plug into ho using natl. digitaker chip set built onto one of these i/o proto boards.... they were all gold plated etc.... which I still have some... we do have the first talker we built though ... if you score some of these boards most of the startup of the project is taken care of! ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 8/2/2016 2:10:16 P.M. US Mountain Standard Time, perlpowers at gmail.com writes: On another note, has anyone ever tried making their own I/O boards for any of the 2100 series computers? The closest I found was http://newton.freehostia.com/hp/ where he makes a paper tape emulator and disk interface. However both of those are designed to connect to an existing I/O board like the "microcircuit interface". I haven't seen anything yet on how to interface to the I/O bus, but then again there are thousands of pages of manuals still to browse through.

10 years

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RX02 Debugging

by COURYHOUSE＠aol.com

yea these are nasty sounding drives when they load! ---Ed# Re: You'll hear a serious "clunk" when they load. In a message dated 8/2/2016 10:49:06 P.M. US Mountain Standard Time, lbickley at bickleywest.com writes: On Tue, 02 Aug 2016 21:43:03 -0700 Kirk Davis <kirkbdavis at me.com> wrote: > Thanks for the suggestions. I?m in Sunnyvale, CA. > > I actually got the rx02 from another hobbyist that > used it with the 44 in 2008 so I suspect it is configured correctly. > The other drive doesn?t have a belt so I?m unable to test with it. > I?ve verified the cable direction. It?s a sweet 44 - super clean, > runs great and is like a tank. > > One of the problems is I don?t know normal behavior of the drive. The > motor is aways spinning for unit 0. When I try booting I don?t hear > the heads load or seek. I?m new to the 44 monitor commands & boot > process etc so I?m learning as I go. The motors always spin. The heads should engage whenever selected. You;ll hear a serious "clunk" when they load. If you're coming to the VCF this coming weekend, Bob Rosenblum and I will have a running RX02 attached to a PDP-8/M. You can hear all of it's "sounds" there. You'll also be able to play "Spacewar!" with our VC8/E and XY monitor, etc. BTW: Make sure you have the correct switch settings on the RX02 mainboard for your PDP-11... > I?m also making one of these to help isolate if it?s a > drive/cable/controller problem: > > http://www.torok.info/computing/pdp11/rx02/index.htm That looks like a cool project. Would like to see it when you've got it running!!! Lyle > > On Aug 2, 2016, at 3:24 PM, Paul Anderson <useddec at gmail.com> wrote: > > > > Hi KIrk, > > > > The H771 is a rock solid power supply. I never saw one go bad while > > in field service, but they are getting old. Checking the output > > voltage and ripple is not a bad idea. > > > > forgive me for asking, but where are you located? The RX02 had 4 > > different power hanesses for i20, 220, 50 hz and 60 hz. Also > > different belts amd pulleys. if any of this is wrong you cn see > > weird problems. A lot of RX02s and replacement drives were soul > > through brokers who never asked or were never told where the unit > > was going. if you aren'y useing 120/60 that would be my first > > thought. > > > > Is the problem the same when booting off either drive? Also check > > the switches and the resistors on the head cables. > > > > Good luck, Paul > > > Jerry Weiss wrote: > > > >If you haven?t already, check the cable seating, orientation and for > >bent pins. > > On the RX211 board J1 - TT is the location of the AC LO - Active > > Low signal. > > > > On Tue, Aug 2, 2016 at 4:06 PM, Kirk Davis <kirkbdavis at me.com> > > wrote: > >> I?m a noob using RX02?s but thought I?d run this past people that > >> may have debugged them in the past and see if they agree with what > >> I?m finding: > >> > >> I?m trying to get a RX02 + RX211 + 11/44 going. The RX02 appears > >> to power up OK (fan and motor spinning). I verified I have the DY > >> boot rom in the 44. Attempt booting from the console: > >> > >>>>> b dy > >> > >> S > >> 17777707 173436 > >> > >> Which halts in the DY boot rom. I look at the base RX211 register: > >> > >>>>> e 17777170 > >> 17777170 104040 > >> > >> From the manual this like the controller is present but the high > >> order bit is set indicating an error > >> > >> Looking at the status register; > >> > >>>>> e 17777172 > >> 17777172 000010 > >> > >> Bit 3 == RX AC LO - This bit is set by the interface to indicate a > >> power failure in the RX02 sub- system. > >> > >> So start looking at the RX02 power supply? > >> > >> > >> > -- 73 AF6WS Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"

10 years

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Is MS-DOS, PC DOS and DR-DOS vintage enough to count?

by jnc＠mercury.lcs.mit.edu

> From: Chuck Guzis > I routinely use Win98SE for my DOS tasks--it boots into DOS quite > nicely if you edit the MSDOS.SYS file to say BootGUI=0. That's considerably more elegant than the way I use, to get my 98SE boxes to boot into DOS to start with (which I prefer, in case I want to do anything that requires Windows not to be running, e.g. disk repairs); I just re-named 'WIN.COM' to 'LOSE.COM'. So I get an error message grumbling that it can't find WIN.COM, and then it falls into DOS. Of course, my way, I do get the ineffable pleasure of saying "LOSE" to start Windows, every time I boot the machines. Never gets old. Noel

10 years

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Transitional Technology SCSI controller

by glen.slick＠gmail.com

On Aug 2, 2016 4:39 PM, "Glen Slick" <glen.slick at gmail.com> wrote: > > On Aug 2, 2016 4:31 PM, "Douglas Taylor" <dj.taylor4 at comcast.net> wrote: > > > > I have an S-Box Q-bus SCSI controller made by Transitional Technology, it is missing two socketed chips; the PROM and what I think is a static RAM chip, both 28 pins. Does anyone have the HEX file of the PROM? Does anyone know what the RAM chip is? I curious to take a shot and see if this thing works. > > > > The board doesn't have jumpers, is it hardwired to some CSR? Thanks. > > > > Doug > > > > I have a TTi QTS-30 which is TMSCP tape only. No MSCP disk support. If there are no jumpers (I don't have it front of me to check at the moment) then it must be soft configurable through the 10-pin serial port interface. > > Post a picture of your board or send me one direct and I'll see if it looks the same as my board. If it is I can dump the EPROM firmware in mine for you. Maybe two EPROMs for 16-bit wide firmware. Responding to my own previous post. First, it is a TTi QTS-3, not QTS-30. The plain dual wide version without the S-Box handles is the QTS-1. Second, I can confirm that the CSR address is configured through the 10-pin serial port. Last, there is a single firmware EPROM. The other 28-pin socket is an 8KB SRAM. A Fujitsu 8464A on one of my boards and an Inmos IMS1630P on the other. Any standard 8KB SRAM of same or better speed (didn't check the speed grade) would likely be fine.

10 years

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Tek 4025 and 4017 Terminal option 31 kit to give away

by rlloken＠telus.net

I was rooting through the drawers in the shop looking for some torx screwdrivers and I found a Tek 4025 option 31 field upgrade kit part # 18-0124-00. This is complete in its original beat up box and useful only on a Tektronix 4025 or 4027 graphics terminal and there are none of those anywhere near here. Option 31 is a character set upgrade kit and has a printed circuit board, two character set ROMs, a DOS 5-1/4 floppy disk containing who know what, and a ribbon cable. And instructions. In the box, but unrelated, is an NIB key for a keyboard Tek part # 260-1924-00 and a used key cap (from a 4025?) labelled ERASE. Anybody want it for the postage? It should be fairly cheap to mail. -- Richard Loken VE6BSV, Systems Programmer - VMS : "...underneath those Athabasca University : tuques we wear, our Athabasca, Alberta Canada : heads are naked!" ** rlloken at telus.net ** : - Arthur Black

10 years

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Transitional Technology SCSI controller

by dj.taylor4＠comcast.net

I have an S-Box Q-bus SCSI controller made by Transitional Technology, it is missing two socketed chips; the PROM and what I think is a static RAM chip, both 28 pins. Does anyone have the HEX file of the PROM? Does anyone know what the RAM chip is? I curious to take a shot and see if this thing works. The board doesn't have jumpers, is it hardwired to some CSR? Thanks. Doug

10 years

2
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Midwest Scientific Instruments 6800

by vintagecomputer＠bettercomputing.net

Thanks Chris.. yes I think you are correct. ?Here is a photo of it: http://s1381.photobucket.com/user/unclefalter/media/20160520_194139_zpswkjg… This is the CPU board. ?I'm wondering why it has four EPROMs, and what the two unmarked do. ?This is where I wish there were a manual.. or even a good pic of an untouched original board to compare. http://s1381.photobucket.com/user/unclefalter/media/20160520_194018_zps8odx… I'd just settle for being able to fool around in the monitor. ?But I think this monitor is called WEEBUG because it's very stripped down. Sent from my Samsung device -------- Original message -------- From: Chris Elmquist <chrise at pobox.com> Date: 2016-08-01 8:14 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>, Brad H <vintagecomputer at bettercomputing.net> Subject: Re: Midwest Scientific Instruments 6800 I have all kinds of SWTPC 6800 stuff here and I think I recognize your floppy controller as a PERCOM LFD-400 board.? These are somewhat unique because they are built around a sync USART (S2650) and use 10-hole hard-sector floppy media (just like Heath H17 and Northstar systems). Can you see any PERCOM logo on the floppy controller board? Are there two 2708 EPROM on that board? Chris On August 1, 2016 12:32:49 PM CDT, Brad H <vintagecomputer at bettercomputing.net> wrote: >Just thought I'd send out another shout out to anyone who might have >one of these or is familiar with them. ?I've had this a while but have >not really been able to use it, lacking a boot disk. ?It also doesn't >have the standard MSIBUG ROM. ?I'm hoping maybe someone out there knows >how I could procure the original ROMs and put this back to stock. >I made a video showing the current 'WEEBUG' ROM in case any are curious >or someone out there knows about it. >Thanks! >https://youtu.be/LY7yoAVxSrM > > > >Sent from my Samsung device -- Chris Elmquist

10 years

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Pictures per previous post

by dfields-cctalk＠dpf.cc

You can view my shared album on the web: Classic Computers Apparently I can do this easily through iCloud. The joy of modern computers. :) Cheers, Doug -- Sent from my iPhone

10 years

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HP 2100A Restoration

by COURYHOUSE＠aol.com

Back in the day we were running and selling 2000 gear in the 80's never had a bad power supply. one fan died in our 2000 F/ access system and rather than tear it down to replace the fan.... just bolted a mother of a fan to the back of the processor over the space the dead fan was. Like the story of the shoemakers kids that never got new shoes as the shoemaker was busy helping everyone else.... this poor processor to this very day still has that fan on the back of the processor...... Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 8/2/2016 9:42:19 A.M. US Mountain Standard Time, glen.slick at gmail.com writes: On Mon, Aug 1, 2016 at 10:25 PM, Lyle Bickley <lbickley at bickleywest.com> wrote: > On Mon, 1 Aug 2016 22:11:17 -0700 > Bob Rosenbloom <bobalan at sbcglobal.net> wrote: > > --snip-- > >> There's a bunch of small electrolytic capacitors on the Inhibit >> Driver Load Card, A106, that needed to be reformed before my memory >> would work reliably. > >> They reformed themselves in one of my units. I had memory errors for >> an hour or so then they went away. On other units, I reformed the >> caps (took the board > >> out and slowly brought it up on a bench supply), and had no memory >> errors at first power up of the system. >> >> Bob > > I had exactly the same problem with the capacitors on a spare Inhibit > Driver Load Card. Most would not reform so I just replaced them with > modern caps. The board (and memory) worked perfectly after that. > > Lyle That is good information to know. I have a 2100A that I haven't touched in a while. It had memory issues that I never got around to trying to debug. Next time I work on it I'll look at the IDL card.

10 years

1
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FTGH: RL01 pack

by jnc＠mercury.lcs.mit.edu

So I have an RL01 pack, and no RL01 drives. Free to someone who can make use of it. (Note: it's missing its protective bottom cover.) If you have something I can use, to send the other way, so much the better! ;-) Noel

10 years

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LASERS! && Freemont Street LED array (was Re: Cray J932SE (was Re: Straight 8 up on Ebay just now))

by ethan＠757.org

> No, Brad was not the founder of NewTek. He did do early designs of the Toaster. > - John Derp! Checked, he built the first Video Toaster but not the company. https://en.wikipedia.org/wiki/Brad_Carvey Thanks for the correction! -- Ethan O'Toole

10 years

1
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Bill Gates: Windows 95 Was 'A High Point'

by COURYHOUSE＠aol.com

hey! the start it up song sold me! it sure was a production eh? I installed it... I liked it.. 98 SE got better me got worse XP was outstanding I did fine with vista... 7 was better yet. skipped 8 bought never installed and used to up to 8.1 then used to up to 10 on one system. I am happy with 10 just a few things to get used to. upgraded the edit bays and office systems... all is well no urge to go backwards.... In the archive area we keep at least one... dos 6 3.1 95 98se xp vista 7 In a message dated 8/1/2016 5:35:59 P.M. US Mountain Standard Time, vintagecomputer at bettercomputing.net writes: Er.. that was.. 'down one side of the CN tower'.. :) Sent from my Samsung device -------- Original message -------- From: Brad H <vintagecomputer at bettercomputing.net> Date: 2016-08-01 5:29 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Bill Gates: Windows 95 Was 'A High Point' I would call Win 95 a high point also. I lived near Toronto at the time and remember the unfurling of a huge Win 95 banner down one side. There were events everywhere. MS was really at their zenith. The excitement around that launch was like nothing since. I believe I got swept up and installed it immediately but shortly after removed it. Couldn't get used to the interface. Eventually for one reason or another I had to and did go back to it. Wasn't the greatest or most stable OS and was kind of a half breed at that, but man.. what I wouldn't give to feel the anticipation again, the difference between it and DOS. Nothing released on either PC or Mac has come close. Brad Sent from my Samsung device -------- Original message -------- From: Cameron Kaiser <spectre at floodgap.com> Date: 2016-08-01 4:25 PM (GMT-08:00) To: cctalk at classiccmp.org Subject: Re: Bill Gates: Windows 95 Was 'A High Point' > > <https://tech.slashdot.org/story/08/05/28/2214214/bill-gates-windows-95-was-…> > http://cdn.cultofmac.com/wp-content/uploads/2015/08/introducing.gif I have a "Windows '95 = Macintosh '89" pin on my iMac G4, as seen here: http://www.theapplecollection.com/Collection/pin/PinsBadges.html -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Business is war. -- Jack Tramiel -------------------------------------------

10 years

5
5
0 0

Concurrent Computer Corporation

by pontus＠Update.UU.SE

Hi I'm trying to revive and old unix machine. A Concurrent Computer Corporation series 8000. This seems to be a later version of Masscomp MC5600/MC5700 which has a manual in bitsavers. The system runs RTU (which I assumes means Real Time Unix). My machine is in great condition and both SCSI disks (Seagate ST516) seems to work fine and I've made images. But the machine panics at boot: --- panic: Unauthorized use of RTU For further assistance, contact Concurrent's Customer Service Technical Support Group --- The NVRAM battery is long dead and upon entering the console I get a complaint regarding the TOD clock, but I see no way of setting it. I can boot into a "stand alone mode" but not single user. In the SAM I can poke arround the filesystem and use "date" to set a date, but the clock appears not to be running. Does anyone have experience with this type of machine, either CCC or masscomp and can offer assistance? It's a dual MIPS machine with 16MB of memory. /P

10 years

4
5
0 0

Copyright act Section 108

by jwsmail＠jwsss.com

IANAL, and this is way off topic, but needs to be put out as there are a lot of ears here that depend on Bitsavers, and probably some of the other Museums. The Copyright office seems to be unhinged with an unrelated matter I won't post here (email me off list if you don't know about it), and is looking at things with a bad eye towards messing things up. This is the Section 108, which probably protects libraries and archives who have the need to allow copies of works made. Bitsavers has a slight off center of that charter in that they collect stuff in a different way than libraries do, but once collected it probably enjoys the protection of this part of the Copyright act. Almost everyone sounds like they are puzzled why it needs messing with, and probably does not. But we should be alert that collateral damage >from some idiotic revision doesn't include Bitsavers, Boatanchor, or countless others. Manx? Thanks Jim https://www.techdirt.com/articles/20160729/23591535111/copyright-office-int…

10 years

1
0
0 0

In search of: Fairlight CMI series I or II

by ian.finder＠gmail.com

I know, I know... But I figured I'd try here anyway. Any condition is okay with me. Willing to pay market rates. Cheers, - Ian -- Ian Finder (206) 395-MIPS ian.finder at gmail.com

10 years

2
1
0 0

Bill Gates: Windows 95 Was 'A High Point'

by vintagecomputer＠bettercomputing.net

Never did try OS/2. ?I had friends who were fanatics about it. ?There was a big push back then to go to it. ?When that failed they rallied to Linux. ?Really should set up a box here with it and try it out. Sent from my Samsung device -------- Original message -------- From: Jerry Kemp <other at oryx.us> Date: 2016-08-01 8:26 PM (GMT-08:00) To: General at classiccmp.org, "Discussion at classiccmp.org:On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Bill Gates: Windows 95 Was 'A High Point' Understood.?? That was OS/2 2.0 for me, after I had settled into OS/2 1.3 Unix took me longer to warm up to. Jerry On 08/ 1/16 07:29 PM, Brad H wrote: > > > I would call Win 95 a high point also. I lived near Toronto at the time and > remember the unfurling of a huge Win 95 banner down one side. There were events > everywhere. MS was really at their zenith. The excitement around that launch was > like nothing since. I believe I got swept up and installed it immediately but > shortly after removed it. Couldn't get used to the interface. Eventually for one > reason or another I had to and did go back to it. Wasn't the greatest or most > stable OS and was kind of a half breed at that, but man.. what I wouldn't give > to feel the anticipation again, the difference between it and DOS. Nothing > released on either PC or Mac has come close. > Brad >

10 years

2
1
0 0

Midwest Scientific Instruments 6800

by vintagecomputer＠bettercomputing.net

Just thought I'd send out another shout out to anyone who might have one of these or is familiar with them. ?I've had this a while but have not really been able to use it, lacking a boot disk. ?It also doesn't have the standard MSIBUG ROM. ?I'm hoping maybe someone out there knows how I could procure the original ROMs and put this back to stock. I made a video showing the current 'WEEBUG' ROM in case any are curious or someone out there knows about it. Thanks! https://youtu.be/LY7yoAVxSrM Sent from my Samsung device

10 years

4
4
0 0

MicroVax II (Doug)

by grahamcreid＠gmail.com

The company I worked for in 1989 had three hand-me-down MicroVax II from the US parent. They were originally a PDP11/73 box, which had been converted. They ran VMS 5.5-2, all had DEQNA, with no problems that I remember. They were just networked, it wasn't a cluster. The DEQNA may have been *unsupported* on 5.5, but it seeded to work OK. I still have one system, and bits of the others. Failing ESDI drives put them to the back of the garage. I do have a replacement ESDI drive, and a Q-bus SCSI controller, so when i get time (ha!), I'll resurrect it. Regards, Graham

10 years

5
11
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