test-drb May 2003

test-drb@ccmp.vtda.org

284 participants
500 discussions

by pete＠dunnington.u-net.com

On May 18, 23:55, Tony Duell wrote: > Do you have the complete p-System that was distributed for these machines > (with the Pasacal compiler and the 68000 assembler) or just the OS (and > filer?) that's needed to run ready-written software? I don't remember exactly what's on the disks, but essentialy the two dsks differ only in the VDU setup, and I suspect they're not a complete p-System with all the extras. Probably the editor and compiler, etc but not much more. It's probably possible to copy the non-system-specific parts from another system, though. -- Pete Peter Turnbull Network Manager University of York

21 years, 7 months

Seeking Surplus Places, Portland area

by kyrrin＠bluefeathertech.com

Fellow listmembers, I'm making a run to Portland and vicinity later this week (Thursday, so I can at least see if the rumors about Tektronix's company store are true). I'm going to be looking for electronic surplus places to add to the listings on my web site, and I would appreciate input as to any I may have missed from this list: Da Lode Surplus Electronics, 8221 N. Denver R5-D3 Electronic Surplus, 9770 SE Stanley Ave. Wacky Willy's (both stores, NW Vaughn and Hillsboro). Tektronix Company Surplus (I already have directions). I'll also be doing some shopping of my own, but please bear in mind that my interests have swung hard away from computer hardware and back into the RF and test equipment realm. That's not to say I wouldn't like to find, say, Data I/O programming stuff, it's just not my primary focus when I'm shopping any more. So... Have I missed anyone? I came across a phone book entry for 'Norvac Electronics' that sounded vaguely familiar, but I figure Portland area folk will know best. Thanks much. -=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner & Head Hardware Heavy, Blue Feather Technologies -- http://www.bluefeathertech.com ARS KC7GR (Formerly WD6EOS) since 12-77 -- kyrrin(a)bluefeathertech.com "I'll get a life when someone demonstrates that it would be superior to what I have now..." (Taki Kogoma, aka Gym Z. Quirk)

21 years, 7 months

Data transfer from Apple ][ to PC

by cb＠mythtech.net

>Meep! I can do all of that apart from the LocalTalk bridge and the >Workstation card, The localtalk bridge isn't needed if you are going to a mac that supports Localtalk directly Basically, anything after the 128 and before the iMac. The 128 doesn't have built in localtalk support IIRC, and the iMac and later don't have serial ports to the bridge is needed to connect to their Ethernet ports for Ethertalk. If you don't have a workstation card for the II, it will probably be cheaper/easier to get a Rom 3 IIgs and use the built in localtalk on that. -chris <http://www.mythtech.net>

21 years, 7 months

Leaving the hobby

by pete＠dunnington.u-net.com

On May 18, 9:27, Merle K. Peirce wrote: > I was going over some old cables, and found a strange card in them. > > It is marked C.A.V.I. interface and has a sticker that reads Cavri Systems. > There is a 1980 date etched on the board, and under the sticker it looks > like it says BCD Associates. There are seven chips on board, 2 > DM7416N's a DM74LS14N, 2 Magnecraft W107DIP-5's, a Magnecraft W118DIP-5, > and a rockwell 6520-11. There are 6 outputs: Monitor V, Monitor A, Audio > Ch1 and 2, Player V and Computer V, and a nasty HRS rectangular locking plug. > I suspect it might be for an Apple II, but everything else was Wang or > System36, so it could be anything. Does anyone recognise this? Sounds like some kind of interface to connect a computer, a monitor, and a LaserVision player (or some similar device). Such systems were used for training systems using video clips and stills. I remember Jaguar using such a system in the mid-eighties; they shipped one to each Jaguar dealer in the UK, with training disks for the vehicle technicians -- but those were PC-based, with Pioneer LaserVision players and fancy Sony monitors. CAV probably means Constant Angular Velocity; which is what is used on LaserVision disks designed for random access, especially picking out individual frames. The Magnecraft devices are DIL reed relays, possibly for video switching. If it doesn't have much else on it, I'd guess it doen't do any genlocking. Sorry, no idea what computer it fits. -- Pete Peter Turnbull Network Manager University of York

21 years, 7 months

New additions

by SUPRDAVE＠aol.com

Found a few things today which is surprising these days. Got a RS6000 model 250. It had the key in the switch which I understand is a good thing. Is this computer worth keeping? Got a CD labeled upgrading and repairing PCs 8th edition. Also has 6 and 4th editions on it as well as a mac upgrade section. Looks to be all .pdf files. found 3 full length ISA cards called EVERGREEN SYSTEMS CAPCARD 9500. Looks like a computer on one board with a Pentium overdrive in a socket 3. Any info on this?

21 years, 7 months

A little OT:Interesting case for a PowerBook 5300...

by dwoyciesjes＠comcast.net

Yeah, this is kinda OT, but still interesting... http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=171&item=2729209921 -- --- Dave Woyciesjes --- ICQ# 905818

21 years, 7 months

MEK

by pete＠dunnington.u-net.com

On May 18, 10:58, vance(a)neurotica.com wrote: > Isn't MEK a carcinogen? (Unlike HCl or Acetone...) Not that I know of. See, for example, http://ptcl.chem.ox.ac.uk/MSDS/BU/2-butanone.html Lots of other common (or once-common) solvents are, though. Compare 111-TCE, toluene, carbon tetrachloride, ... http://ptcl.chem.ox.ac.uk/MSDS/TR/1,1,1-trichloroethane.html http://physchem.ox.ac.uk/MSDS/TO/toluene.html http://ptcl.chem.ox.ac.uk/MSDS/CA/carbon_tetrachloride.html On May 18, 15:51, Jon Titus wrote: > To remove the residue from non-water-soluble adhesives left behind by > masking tape, labels, duct tape, electrical tape, etc., I've used xylene or > xylol with good results. Not a good choice. It used to be a constituent of thinners for cellulose paints, but now it's not allowed to be sold in normal hardware stores over here, for a variety of reasons (and most cellulose paints have been replaced by safer alternatives). http://physchem.ox.ac.uk/MSDS/XY/o-xylene.html Anyway, it's more drastic than you need. Turpentine substitute is slower, but works on much the same things, and won't harm plastics. -- Pete Peter Turnbull Network Manager University of York

21 years, 7 months

Writing single density disks on a PC?

by dwightk.elvey＠amd.com

>To: cctalk(a)classiccmp.org > >Ok, I want ot generate some disks for my Model 4 on my PC, BUT some of the >disks I want to regenerate are mixed single and double density ... any >suggestions? > Hi Geoff If it is done a track at a time, you can deal with it by using the low level disk access functions of the BIOS. You do have to have a disk controller that supports single density ( not all do ). There are a few articles around that describe setting up the DMA ( needed for floppies ) and the disk controller, as another option. I've found this method to sometimes be machine dependent so if you can get by with the standard BIOS calls, that is a better way. If you can read Forth, I can send you some code I wrote to write tracks for my Olivetti M20 ( Z8000 machine ). I don't have a controller that does track 0 that is single density but you can get the idea of how to handle the controller and DMA. The other tracks are double density ( 360K drives ). You also need a compatible drive. You can't use a 1.2M drive to write single density at all and double density is not properly done so it will most likely fail to read reliably( a track width issue ). It may also be that your machine is supported by things like 22DISK. Have you tried this? Dwight

21 years, 7 months

STAG Electronics Ganged Programmer

by dwightk.elvey＠amd.com

Hi When they change to newer models, they drop all support for the older ones. Even DataI/O supports some of the older ones for a while. But then, you pay for that support( a bit steep for hobiest but in reason for a company ). I have a Stag that I've always meant to play with but I've just been to lazy. I have other programmers that I can use. Dwight >From: Joe <rigdonj(a)cfl.rr.com> > > I have a Stag 39M100 with one plug-in for programming EPROMs and another >for programming embedded micro-processors. I found the docs for it on a >site in France. Stag is utterly worthless when it comes to support. I'll >never buy or recommend anything from them. Glen G has a bigger gang >programmer and I think he has a real manual for it. > > Joe > >At 07:29 PM 5/16/03 +0100, you wrote: >>At 09:50 15/05/2003 +0100, Witchy wrote: >> >>>Made by STAG in 1984, it's got a model number of PP16A and features a socket >>>for a cartridge containing the master EPROM and a module containing 16 EPROM >>>sockets for new EPROMS, so obviously you feed it a master and it makes up to >>>16 copies. >>> >>>Under the hood it's actually a 6809 based micro with 2K RAM and the board >>>has holes ready for 2 COMM sockets, so does anyone remember these beasts? >>>It'd be great if I could add on the serial ports and talk to it using a >>>PeeCee for making ROM backups >> >> >>I remember these being in use at Ferranti, when I was an apprentice there >>about 20 years ago .. (so age fits!) AFAICR we only ever used them in >>stand-alone mode as a bulk copier. They were also RENTED, from Livingston >>Hire, if I recall correctly, (certainly we used them a lot) so there may be >>a chance you can find some old docs from them. >> >>Rob

21 years, 7 months

Oldest computer still in current use

by cheri-post＠web.de

Additional question: Can the PDP-11 be connected to the internet ? What about TCP/IP ? Pierre cctech(a)classiccmp.org schrieb am 10.05.03 21:41:39: > > Even better, how about the Digital PDP-11. > > > On Sat, 2003-05-10 at 14:14, UnRooster wrote: > > What about Commodore 64? > > > > http://dunkels.com/adam/tfe/index.html > > > > > > >1: What is the oldest computer or comptuer system still in normal > > >operational use > > > > > >2: What is the oldest that is connected to the internet > > > > > >3: What is the oldest connected to the internet AND hosting web pages > > >that can be visited (I know of an Atari that is acting as a web server, > > >don't remember the URL, but it shouldn't be tough to find... didn't know > > >if there was something older) > -- > Barry Skidmore | Hobbyist Systems: > skidmore(a)worldvenue.org | C64/128 > Red Hat Linux 8.0 | MicroVAX 3100-40, OpenVMS > Postfix 1.1.11 | Mac SE/30's > -- ____________________________________________________________________________ Fur 92 EUR mit Lufthansa quer durch Deutschland fliegen. Jetzt online den Fruhbucher-Tarif buchen unter http://img.web.de/lh/lhspecial2.html

21 years, 7 months

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test-drb May 2003