test-drb April 2018

test-drb@ccmp.vtda.org

128 participants
123 discussions

by spacewar＠gmail.com

I find myself in need of a 5.25-inch alignment disk. A few years ago someone mentioned a source for those, but I can't seem to find it. Is there still a source, or does anyone have one they'd be willing to sell? I could use an 8-inch alignment disk also, but don't need that as urgently.

6 years

P112

by bill.gunshannon＠hotmail.com

It's not really Classic Hardware, but it does run some pretty classic OSes.? Anybody here working with the P112?? I have had a couple for ages but never had time to play with them.? I see them now as a possible way to manipulate floppies (including 8") from classic systems so I decided to give it a try.? Problem is, it won't boot anything.? Not the disk that came with it and none of the images I got off the web. Anybody here know anything about them? bill

6 years

Vintage computing themed domain names for sale

by sellam.ismail＠gmail.com

Hello Folks. I am selling the following two vintage computing themed domain names: vintage-computing.com paleocomputing.com Make an offer on either. Please of course reply directly to me if interested. Thanks! Sellam

6 years

SGI SN-921 dial box working! (was Re: Seeking software for SGI/Sun dial box)

by ethan.dicks＠gmail.com

On Sun, Apr 8, 2018 at 5:01 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote: > On Sun, Mar 25, 2018 at 3:48 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote: >> SN-921 >> https://upload.wikimedia.org/wikipedia/commons/7/74/Sgi_dialbox_sn-921_fron… > >>>>> https://github.com/hanshuebner/sgi-dialbox-usb/blob/master/dialbox.py >> >> I'm going to test this code out when I have a dialbox in hand. > > I have now tried this and am not having success. I have a traffic > light on the serial cable and I know I'm getting chars out of the host > and that I don't have TxD and RxD swapped. I'm not seeing any > responses from the dial box and the python script does all the > initialization and just sits there. Frobbing the knobs produces no > blinks on the traffic light and no text from the script. OK. I got the script working and two things were impediments: 1) One of the SN-921 pinouts running around on the 'net is incorrect, as I posted. The *correct* place for the ground is DE-9 pin 7. I was apparently getting enough of a parasitic ground to get chars *from* the SN-921 but not *into* the SN-921. As it turns out, it appears the SN-921 as set up for the SGI is mute except for a single status success byte 0x20. If you send it an INIT command (also 0x20), it will respond with its success after a fraction of a second, which leads to another problem... 2) The python script dialbox.py slams the init code and a command to set the dials to auto-report all at once, before the SN-921 has a chance to initialize. So to fix that, I added a few extra lines to send the 0x20 INIT command, pause, check for a 0x20 response (INIT GOOD) _then_ send the AUTO command (0x50 0x00 0xFF), which sets all 8 dials (one bit per dial) to send back a 3-byte packet when twisted. With the custom serial cable fixed and the init sequence fixed in the Python script, I'm now getting the right data stream when I twist any of the knobs. I did get a copy of dialbox.c from http://www.geocities.ws/joekrahn/dialbox.tgz Jim Stephens tracked down that there was a massive GeoCities scan done in 2009 and the file I was looking for happened to be scooped up then. There are a number of dial box and button box command sets in that code which reveals some of the more complex behavior possible. Here's a slice of the command byte definitions... #define DIAL_INITIALIZE 0x20 #define DIAL_SET_AUTO_DIALS 0x50 #define DIAL_SET_AUTO_DELTA_DIALS 0x51 #define DIAL_SET_FILTER 0x53 #define DIAL_SET_TEXT 0x61 #define DIAL_SET_BUTTONS_MOM_TYPE 0x71 #define DIAL_SET_AUTO_MOM_BUTTONS 0x73 #define DIAL_SET_LEDS 0x75 #define DIAL_SET_ALL_LEDS 0x4b It should be possible to write up a protocol definition from studying the code. I do not have one of these button boxes so I can't validate its behavior. -ethan

6 years

The Famous Computer Cafe

by dmonnens＠gmail.com

Hello, I am trying to find anyone who has recordings of a radio program >from 1982-1986 called The Famous Computer Cafe. This was broadcast on KIEV in Glendale, KFOX in Redondo Beach, and NPR through Santa Monica College (here in 1984-1985). The program contained numerous interviews with all the movers and shakers of computers and software during that period, including Bill Gates, Steve Jobs, and Jack Tramiel. As such, this show is of high historical importance. There was somewhere between 100 and 200 episodes all told. I understand it was an extremely popular program among hobbyists at the time, so was hoping someone from the list might have recordings. If you have any recordings or know someone who might, please let me know! I have contacted the show's hosts, but we have only been able to locate a handful of recordings. Thank you! -- Devin Monnens www.deserthat.com The sleep of Reason produces monsters.

6 years

Burroughs L8000 San Antonio TX

by billdegnan＠gmail.com

Anyone interested in buying a Burroughs L8000, currently San Antonio TX? If so, contact me via http://www.vintagecomputer.net/contact.cfm and I will put you in touch with the person who contacted me. I already have two or three of these so....just kidding not personally interested in this. Bill

6 years

Seeking software for SGI/Sun dial box (was Re: IBM 6094-010 "Dials" protocol?)

by Richard.Sheppard＠telus.com

On Sun, Mar 25, 2018 at 3:48 PM, Ethan Dicks <ethan.dicks at gmail.com<http://www.classiccmp.org/mailman/listinfo/cctalk>> wrote: > SN-921 > https://upload.wikimedia.org/wikipedia/commons/7/74/Sgi_dialbox_sn-921_fron… > > DANAHER CONTROLS Dials DLS80-1022 > https://upload.wikimedia.org/wikipedia/commons/c/cd/SGI_dialbox_DLS80-1022_… >>>> https://github.com/hanshuebner/sgi-dialbox-usb/blob/master/dialbox.py > > I'm going to test this code out when I have a dialbox in hand. The Solaris CDs used to have /usr/demo/DIALBOX (and BUTTONBOX) with source code. I think it was meant for xview though so you'd need to pick out the useful bits (if any). Richard Sheppard

6 years

SGI Indigo Power Supply Pinout?

by ethan＠757.org

Howdy, Working on fixing an old SGI Indigo of mine in prep for VCF East. The issue is once any sort of IRIX kernel is running, it craps out WARNING: Power Failure Detected at a high rate. The SGI Indigo and a few other similar models could push out that error on the local console and perhaps network inbetween the time that AC power was lost going into the power supply and the power supply had discharged enough for system to die. Pretty impressive and strange! I was amazed when I first noticed it, of course now it has come back to haunt me. I have replaced some of the electrolytic caps in the power supply. But in the spirit of troubleshooting, does anyone have any sort of schematics or documentation on the power supply, or the midplane? This is a R4000 Indigo and has the higher output power supply to support bigger CPU and graphics. In the meantime I'm working to document what I can about the power connector and will publish, but I can only get so far without other insight. Thanks -- : Ethan O'Toole

6 years

Amust Executive up for auction

by trash80＠internode.on.net

Not sure if anyone in the Melbourne (Victoria, Australia) might be interested in this. I only just found about it from a friend of mine in Melbourne. The very famous (well famous here anyway) Kerleys Auction (http://www.kerleys.net.au) in Geelong have listed an Amust Executive computer in tomorrows (10 April) auction. http://www.kerleys.net.au/current-auction Its Lot 177 in the tomorrow's catalogue: http://www.kerleys.net.au/images/auctions/10-04-2018/CAT10-04-2018.PDF >From the only photo it looks in reasonably good condition. http://www.kerleys.net.au/images/auctions/10-04-2018/1-280/DSCN3459.JPG I believe Kerleys will take bids before the auction but not sure of terms - number is (03) 5223 1533 It's not something I'd like in my collection but may interest another Australian collector. Kevin Parker P: 0418 815 527

6 years

Seeking software for SGI/Sun dial box (was Re: IBM 6094-010 "Dials" protocol?)

by ethan.dicks＠gmail.com

On Sun, Mar 25, 2018 at 3:48 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote: > SN-921 > https://upload.wikimedia.org/wikipedia/commons/7/74/Sgi_dialbox_sn-921_fron… > > DANAHER CONTROLS Dials DLS80-1022 > https://upload.wikimedia.org/wikipedia/commons/c/cd/SGI_dialbox_DLS80-1022_… >>>> https://github.com/hanshuebner/sgi-dialbox-usb/blob/master/dialbox.py > > I'm going to test this code out when I have a dialbox in hand. I have now tried this and am not having success. I have a traffic light on the serial cable and I know I'm getting chars out of the host and that I don't have TxD and RxD swapped. I'm not seeing any responses from the dial box and the python script does all the initialization and just sits there. Frobbing the knobs produces no blinks on the traffic light and no text from the script. So... I'm digging deeper and I've found two references to some code >from around 2002 that can interact with dialboxes, but the sites are no longer up and the internet archive did not save the binary archive files. I'm asking here in the hope that someone saved copies 10+ years ago when these files were still being served... In the following thread on the ccp4bb list, there is a mention of these archives... [ in http://www.ysbl.york.ac.uk/ccp4bb/2003/msg00204.html ] "I'm using SGI dialbox (Part# DLS80-1022) with XFree86 4.0.x under linux, with modified version of the Joe Krahn's dialbox driver. You can get the modified version from http://www.biochem.s.u-tokyo.ac.jp/~ishitani/dialbox/dialbox-new.tar.gz and the original version from http://www.geocities.com/joekrahn/ " So I'm looking for: dialbox-new.tar.gz dialbox.tgz dials.c Apparently Joe Krahn hasn't done much with Open Source in 15 years because looking for him has not been fruitful. Thanks for any bits! -ethan

6 years

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test-drb April 2018