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101090 discussions

Wanted: DEC VT-180 "Robin" Corvus interface + software

by dm561＠torfree.net

--------Original Message: Date: Thu, 22 May 2008 07:46:59 -0400 (EDT) From: Steven Hirsch <snhirsch at gmail.com> Subject: Re: Wanted: DEC VT-180 "Robin" Corvus interface + software On Tue, 20 May 2008, Richard wrote: > > I have a VT-180, but I have no idea what a "Corvus interface" is, so > I'll ask the obvious question. What is it? Corvus made a family of external hard drives using a common bus interface (quasi-network, actually). There was an interface board produced for the DEC VT-180 that, along with the driver software, permitted it to use files on attached drives. I have never seen one, but presume it's a small internal add-on (possibly piggy-back style) circuit board or a little external box. It would be labeled 'Corvus' or 'Corvus Systems, Inc.' Steve -- ----------Reply: I have an external Corvus drive enclosure (the small MFM version, not the 8" IMI 7700) that I used to house an external HD for another system, but I still have the original interface board if anyone's interested. I think it was an Omninet drive; the only connection to the outside world AFAIR is a 3-pin header plug. m

17 years, 10 months

Venner Electronics Modules

by tshoppa＠wmata.com

Alexis writes: > I've got here some electronic modules made by Venner Electronics LTD, > Kingston By-Pass, New Malden, Surrey. One is a Transistor Decade Unit > type TS.10/5 and the other just has Type TS 11/HF on it, where 11/HF is > scratched into the metal label. > Opening one reveals a number of Mullard OC44 Ge transistors. > What on earth are they for? I can imagine they're for some sort of > digital machine or even a whole computer, but I can't find any > information about them or the company. Venner Electronics made lab equipment in the 60's and maybe early 70's. What I've seen are digital voltmeters, frequency and period counters, etc. The decade counter modules you have seem most applicable to frequency counter and timing applications but I think they were used as part of the A/D scheme for some of the digital voltmeters too. HP, Berkley Nucleonics, Ortec, and other companies used in their equipment, and sold to other companies as well, decade counter modules etc. >from the 50's onward. I presume "Transistor Decade Unit" was to differentiate it from the "Tube Decade Unit"s that I am very familiar with. If sold to the nuclear instrumentation industry they are usually called "scalers" instead of "counters". Some have direct readout of 0-9 lamps on the side, some have nixie sockets, others simply divide by ten and provide outputs but don't have displays in themselves. Tim.

17 years, 10 months

Collecting development kits (was: iUP201)

by jcoman＠valcom.com

Do you still have that Motorola M68HC705KICS K-Series ICS/Programmer? Found post at http://www.classiccmp.org/pipermail/cctalk/2006-January/212076.html Joel Coman Supervisor, TEST Dept. VALCOM, INC. 5614 Hollins Rd Roanoke, Va. 24019 Ph: (540) 563-2000 Ext. 241 Fax: (540) 362-9800

17 years, 10 months

In search of MM57109 by National Semi

by ragooman＠comcast.net

Would anyone have any of the MM57109 numerical processor chips ? I had no luck finding this at any of the parts suppliers. This was made about '78 =Dan -- [ Pittsburgh --- http://www2.applegate.org/~ragooman/ ]

17 years, 11 months

test

by jack.rubin＠ameritech.net

can you hear me?

17 years, 11 months

3B2 progress

by Saquinn624＠aol.com

About a year ago I was given a 3B2 1000/70 by Josh Dersch that I've finally gotten UNIX booted on (in a fashon). I've been spoiled by modern variants of UNIX that include the disklabel program in the miniroot, and it seems that 3B2 System V doesn't. The FAQs seem to address either installing on a MFM drive (V3 (500+) 3B2s are SCSI based), or bringing up a drive in parallel with a valid install (the original drive died), or installing on an AT&T sourced drive that's already been labeled (not an option). (A) Does anybody have the "3B2 Computer Maintenance Utilities" or "IDtools" floppy image floating around, or is this the one that I have with filledt and dgmon on it? (B) is the SCSI-FMT tape the equivalent of IRIX's standalone fx for setting up completely blank disks? (the one I'm using is an ex-Sun Seagate). (C) backplane slots: my machine is an interesting hybrid: it's a 3B2-1000/80 backplane with a 3B2-1000/70 system board. I'm trying to figure out if I have Pbus (looks like these are just an extention of the system bus), B?Bus (some buffered permutation of the above?), or something else entirely, since this machine came to me with a PE card (multiprocessor board). How much of the wiring is backplane-dependant, and how much is system board dependant? Anyone have spare bits for one of these? I wouldn't mind a network card, or more I/O (serial or serial/parallel). One further warning: if you use a SCSI cable scavanged from a dead HP 9000 Nova class (or the HP 3000 equivalent), be forewarned that on the end that connects to the backplane the IDC connector is installed backwards (as opposed to the ends that connect to the disks). I blindly assumed that SCSI was SCSI and d idn't think to check until it didn't work. ************** Get trade secrets for amazing burgers. Watch "Cooking with Tyler Florence" on AOL Food. (http://food.aol.com/tyler-florence?video=4& ?NCID=aolfod00030000000002)

17 years, 11 months

X11R7.1 nuisances (it does have bearing on classic comps)

by Saquinn624＠aol.com

Several months ago I upgraded my PC system to Debian 4.0 for several reasons, including being able to use X11R7.1 which was supposed to be a most excellent upgrade. I have had nothing but trouble attempting to run it as an X server for my classic-ish machines. IRIX 6.5.30/Origin200 gives random X-server crashes (when I try Xnest it crashes both Xnest and the parent X), and there is likewise wierdness when I try to use it to connect to my VAX 4000/200 running VMS v7.3 and DECwindows/Motif 1.2.6 (in Xnest windows will migrate outside of the designated server (to the :0 server), and running on it's own screen with XDM the server will often reset before I get the DECwindows "desktop", dropping me back at the XDM login screen). Anyone seen these types of problems before? It seems as though X11R7.1 just "doesn't work" remotely with R6.X and R5.x clients reliably (haven't tried it with my Suns or HP boxes). I currently was given a "new" machine (as in not classic), P4/2.8 with an nVidia 5200 (which might be the problem source) that I'm running. I've been considering whether this would be fixed in X11R7.2 or whether I should try to do a parallel install of X11R6.4 or if I should try it with a Rage128 card in place of the nVidia. ************** Get trade secrets for amazing burgers. Watch "Cooking with Tyler Florence" on AOL Food. (http://food.aol.com/tyler-florence?video=4&?NCID=aolfod00030000000002)

17 years, 11 months

Free: SGI Pipeline newsletters

by silent700＠gmail.com

Dupes from a recent SGI motherlode I picked up. Take one, some or all, just pay shipping from 60074: May/June 94 Jan/Feb 95 Mar/Apr 96 May/Jun 96 Sep/Oct 96 Nov/Dec 96 Jul/Aug 97 Sep/Oct 97 Nov/Dec 97 Sep/Oct 98 -- j

17 years, 11 months

iob6120 construction

by dgriffi＠cs.csubak.edu

Is there someone here who has 1) sucessfully built an IOB6120 board for the SBC6120 and 2) would like to do it again? I have an IOB6120 kit that I'd like to finish, but after doing one of the harder surface-mount parts, I realize that I don't have the skills or tools to finish with the really hard parts. Is there someone who'd be interested in building my kit for me in exchange for goods or money? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

17 years, 11 months

more stuff from the garage

by Saquinn624＠aol.com

Any interest in a Tatung Super COMPstation-20S SPARCstation 20 clone? Currently has 2xSM71 and 208MB and TGX graphics. If anyone has a hot yen for a HP9000 G70 (dual-processors with max RAM (768MB), I've had HP-UX 11i running on it), I might be easily persuaded. It's an unracked ex-rack model, so the front bezel is loose but present. Includes console cable and redundant power supply units. Also, it's sounding like the guy I was going to send my Origin200 (base model, 1x180MHz and 200-somthing MB RAM, no skins) to might be no longer interested, so that one could be available. Also have a set of purple SGI Indigo2 feet and a Xyplex Network 9000 terminal server (~20 ports, TS720 with Flash boot), and an almost-new-in-box (removed for testing) Litronic Argus 2102 SCSI PCMCIA reader. On the flip side, if anyone's getting rid of any little Alpha boards/systems that take an EV56 or better or 3B2 stuff I'd be interested provided it isn't the expensive stuff. ************** Get trade secrets for amazing burgers. Watch "Cooking with Tyler Florence" on AOL Food. (http://food.aol.com/tyler-florence?video=4&?NCID=aolfod00030000000002)

17 years, 11 months

Victor 9000 PC dos needed (2.11.xx)

by g-wright＠att.net

I have a working Victor (9000) PC here with a HD. But for reasons unknown , it does not having any normal DOS files other than what it takes to run the machine. It does have Wordstar and procom but no format or any other external files. I want to back up the Hard drive and make a bootable floppy. This system, I would guess, use special Version of Dos. I saw a thread here last year on these, did anyone get a boot disk going. I believe mine might also have memory problems. did they have test programs for these . Thanks, Jerry

17 years, 11 months

Thurlby LA160 Logic analyser

by bwanyama＠icipe.org

Hi Out there! Anybody got the software for comtrol of the Thurlby LA160 logic analyser? Please Please send me a copy. Wanyama, B.O.K. Nairobi, Kenya bwanyama at icipe.org

17 years, 11 months

Wanted: DEC VT-180 "Robin" Corvus interface + software

by snhirsch＠gmail.com

All, Interested in finding the above item. I know they exist, but I have never encountered them in the wild. Have a nice VT-180 system waiting to go on the network and party like it's 1979 :-). I have an extensive collection of Corvus software, hardware and documentation and can offer interesting pieces in trade. Please contact me privately if you can help or know anyone who can. Steve --

17 years, 11 months

Wanted: Atari 800 Corvus interface + software

by snhirsch＠gmail.com

All, I'm interested in getting my hands on the subject hardware and software. I have some very rare and interesting Corvus items to offer in trade. Not into Corvus? I also have an extensive collection of Apple 2 software and hardware. If you can help, or know who can, please contact me privately. TIA, Steve --

17 years, 11 months

What's about Mike Umbricht h316 web page ?

by spedraja＠gmail.com

The subject of the message is explicit, I think. Someone knows if it's active or accesible yet ? Greetings Sergio

17 years, 11 months

Osbourne OCC1 problem

by javickers＠solutionengineers.com

Hi folks, I just dug my old Osborne OCC1 (1st model, in the beige vacuum-formed ABS case), only to find all is not well. Actually, "finding" all is not well is a bit of a white lie - I already knew it was in trouble, from when I last tried to boot it about 2 years ago... Unfortunately, the intervening 2 years have failed to fix the problem, which is that the video seems to have no horizontal hold. It took a few goes, but eventually it booted from a CP/M disk; with scrambled video. The links below are to a picture & two versions of the same video (16 seconds of special-effects laden trickery...): PIC: The startup screen in scrambled fashion: http://www.solutionengineer.com/ozzie/occ1_prb.jpg VID: Booting to CP/M: MOV format (4mb): http://www.solutionengineer.com/ozzie/occ1_prb.mov MPEG2 format (9mb): http://www.solutionengineer.com/ozzie/occ1_prb.mpg Please excuse the camera wobble on the movie... The constant high-pitch whine is, I think, the image stabiliser in my camera working away. Now.... If I pull the termination block off the External Video connector, the screen goes out (as one would expect); push it back on & the screen comes back on with the display as steady as a rock -- unfortunately, it's crashed the computer... From this, I deduce that it must be something in the mainboard electronics that's failed (a cap, maybe?), rather than something in the monitor unit. Any ideas where to start looking? I have an oscilloscope (albeit I've forgotten how to use it, and am not 100% sure where the probes are), and a multimeter... beyond that, not a lot. I've tried cleaning the contacts to the monitor, and around the Ext Vid. termination block; and I've wiggled the three cable connectors to the mainboard a few times to clean them up. I've also popped each of the three socketed chips in & out a couple of time to clean the legs up. Finally, I soldered the contrast knob back together - one of the legs had broken. Basically, everything works except for the shaky video. Sometimes you see a whole page full of 1s, or 0s; essentially, it's all a bit random. Bad connection somewhere, perhaps, or maybe a failing chip? Cheers! Ade. No virus found in this outgoing message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.16/1431 - Release Date: 13/05/2008 19:55

17 years, 11 months

Capacitor values for original PET power supply?

by dm561＠torfree.net

----------Original Message: Date: Tue, 20 May 2008 10:28:11 -0600 From: Richard <legalize at xmission.com> Subject: Re: Capacitor values for original PET power supply? In article <20080520111556.GD1028 at usap.gov>, Ethan Dicks <ethan.dicks at usap.gov> writes: > The memory board looks interesting - any idea what was meant to go > in the cartridge slots? I wonder if it isn't a memory board scavenged out of some other piece of hardware and simply hacked to appear as more memory in the PET? -- ----------Reply: I think if that were the case, the interface to the PET expansion connector would be a lot messier than what looks like a straight-across ribbon cable with just a transition board to connect to the old-style edge connector, so it does look like it's specifically for the PET, presumably with optional different transition boards for the different PET connectors. An interesting board indeed; what could those slots be for? I don't think C64 carts would work very well in a PET... m

17 years, 11 months

Possible rescue - Cambridge, UK, early next week

by mross666＠hotmail.com

That part of the Corestore collection which remains in the UK is finally moving! Most will be put in a shipping container and taken to the USA, some will be remaining in the UK at a different location. But there may not be room for everything, so some items may need rescuing. The first item on the list for probable disposal is the Convex C220 supercomputer... I rescued it myself around 12 years ago, it's been untouched since then: http://www.corestore.org/convex.htm Complete, with manuals and software. If I'm honest I'm probably not going to have time or, especially, space for it, so first offer of a good home takes it. If no offers are received, it may sadly end up scrapped. If the will is there but time is a problem it can probably remain in Cambridge for a couple of weeks. RSVP by email, ASAP. Thanks! Mike http://www.corestore.org _________________________________________________________________ Keep your kids safer online with Windows Live Family Safety. http://www.windowslive.com/family_safety/overview.html?ocid=TXT_TAGLM_WL_Re…

17 years, 11 months

Altos III terminal and more available, free stuff in Renton, WA

by Saquinn624＠aol.com

If anyone's interested I have an Altos-III terminal with keyboard (slightly yellowed) and manual available. There's a fault in the PSU and it isn't bringing up the logic board power properly, and so far I haven't gotten around to messing with it. Free pickup as-is, Renton, WA. If you have something to trade you'd probably be able to persuade me to make fixing it a priority. Also I have a Diablo 620 daisy-wheel printer with multiple print wheels, spare ribbons, and manual. works, best offer accepted. Also in the free pile: HP AdvanceStack "Switching Hub" for 10BaseT (it's a hub, not a switch). Includes management module Cartridge for Canon LBP-SX printer engine (LaserJet II/many LaserWriter IIs), also a used-working fuser assembly for the SX engine Sun Type-4 keyboards (no cables) SBUS parallel cards CG6's a XENIX-compatible Pentium-233 machine (used to run XENIX at a dental office) a Sun Aurora-II chassis and PSU - put a fast 1/2 height CD-ROM in your SPARCstation! Xyplex MAXserver terminal server cards and baa-daa-bum a Xyplex X-25 bridge card! Infuriate yourself or buy for your closest enemies! Can even supply a MX3k or MX5k chassis for the above 2 things if you want. Sun 3/200 boardset (CPU and RAM, 24 or 32MB worth). Needs chassis and a PROM chip. Sun 501-1153 VME -> IPI-2 Sun VME "SCSI-II" (not that SCSI-II, it's SCSI-I) card in either a X/X60 carrier (no external port) or a carrier with an external DD50 SCSI-port. Sun Xylogics-450 Multibus SMD controller in a Sun VTM adaptor. Can be removed >from the VTM as well. AT-101 keyboards, many of them. Possibly a RS/6000 3CT as well. It has GXT150M graphics, sound. ************** Get trade secrets for amazing burgers. Watch "Cooking with Tyler Florence" on AOL Food. (http://food.aol.com/tyler-florence?video=4& ?NCID=aolfod00030000000002)

17 years, 11 months

buying an oscilloscope

by dgriffi＠cs.csubak.edu

Does anyone here have any pointers on getting a decent used oscilloscope? The intended use is for fiddling with classic computers and assorted homebrewed projects (like synthesizers and geiger counters) -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

17 years, 11 months

PAGING: der Mouse

by chd_1＠nktelco.net

The email address that I have for you doesn't seem to be working. Please contact me directly if you would. -chuck

17 years, 11 months

Possible rescue - Cambridge, UK, early next week

by dgriffi＠cs.csubak.edu

On Wed, 21 May 2008, Robert Jarratt wrote: > Have you tried contacting the BCS Computer Conservation Society? I have > forwarded your email to them just in case. I forget if it's been mentioned here, but Slashdot had a story a few days ago about how Bletchley Park was having money troubles and is danger of closing... -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

17 years, 11 months

cctalk Digest, Vol 57, Issue 40

by dm561＠torfree.net

-----------Original Message: Date: Wed, 21 May 2008 12:42:58 +0000 From: Ethan Dicks <ethan.dicks at usap.gov> Subject: Re: Capacitor values for original PET power supply? <snip> Between subroutines past $9800, and some tables referenced earlier, and a complete lack of a reasonable end of the code, I'd say that's only the half of it. It was common to stuff code in 2K or 4K chunks between $9000 and $BFFF... the hex files, though, seem to only describe 2K chunks. Are your ROMs all 2K and some haven't been copied yet? -ethan -----------------------Reply: Looks like there are only three, but it might be interesting to know what the other labels say (and confirm the EPROM sizes). Computhink also made other add-ons, including a disk drive IIRC, so those PCB slots are probably for things like the disk interface, etc. You might be able to track down someone through old archives who has (had) the manual for it. m m

17 years, 11 months

Possible rescue - Cambridge, UK, early next week

by aek＠bitsavers.org

> Complete, with manuals and software If you do end up scrapping it, could you at least save the docs and software?

17 years, 11 months

Emulation vs. "the real thing"

by cclist＠sydex.com

> Message: 18 > Date: Mon, 19 May 2008 17:57:26 -0400 > From: Allison > ;) Like Blackfin or PIC. Yup. Nothing like downloading your code into a little 6-pin cockroach of a PIC only to find it totally unresponsive. Maybe there's a job description for "electronic psychic". "I've channeled your PIC and it says you forgot to set up the TRISIO register, you stupid idiot." :) Cheers, Chuck

17 years, 11 months

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