test-drb

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101090 discussions

by ethan.dicks＠gmail.com

On 11/28/09, Zane H. Healy <healyzh at aracnet.com> wrote: > At 4:46 PM +0100 11/28/09, Pontus wrote: >>Not mine, not affiliated, but I think a serious collector should pick >>this up! >> >>http://dallas.craigslist.org/ftw/ele/1484014610.html > > I agree, racks like that are surely rare enough to warrant a rescue! > If I were local, I'd go for it! And for something 40+ years old, my definition of local is somewhat expanded... unfortunately, Texas is still a bit far from Ohio. If that were in Indiana or even Missouri, I'd definitely try to pick it up. Looking at the rack, since a Straight-8 has huge backplanes that fill the top of the rack, there are no upper doors - I'm wondering if that's an -8/S cabinet. -ethan

16 years, 5 months

Straight-8 Rack available

by pontus＠update.uu.se

Hi. Not mine, not affiliated, but I think a serious collector should pick this up! http://dallas.craigslist.org/ftw/ele/1484014610.html Cheers, Pontus.

16 years, 5 months

FS: NeXT Cube

by bdwheele＠indiana.edu

I'm selling a NeXT Cube I got in a palette of stuff. I've already got a turbo color slab so I really don't need a cube :) I'm located in Bloomington, IN and I'm not going to ship this! NeXT Cube N1000A P/N: 2115 S/N: ABA0003988 * 68040 @ 25MHz * 64M RAM * Floppy * Broken 5.25 FH HD. Spins up then down. I'll supply a 2G HH Drive * Non-ADB Keyboard * Non-ADB Mouse -- damaged. It looks like someone let it sit in glue or a solvent. The ball still rolls, but I can't open it to check to see if the rollers work. * Monochrome monitor. Readable, but like all monitors of that vintage its a bit faded. I'm asking $150 Brian

16 years, 5 months

IBM PC 5150 power supply?

by fjk＠eircom.net

I'm looking for a IBM PC/ XT power supply for European voltages, 220 -240 V at 50Hz. I have three part numbers but can't find specs for them: 5150438 5150439 6323357

16 years, 5 months

Mostly Q-Bus Parts

by useddec＠gmail.com

Going through boxes during my move in back in process. This is the first partial list of surplus boards available. $10 shipping for any amount within the US, overseas: please contact me. If interested in these or items something not on this list, please contact me off list. Feel free to respond with any comments or ?'s. M3107 DHQ11 $30 M7090 COMM $35 M7504 DEQNA $35 M7513 RD/RX EXP $30 M7546 TK50 $25 M7559 TQK70 $50 M7651 DRV11WA $75 N7940 DLV11 $20 M7944 MSV11B $25 M7946 RXV11 $45 M7949 LAV11 $30 M8044 MSV11/D $25..5/$100.00 The above boards are untested,but have a 30 day swap warranty 54-13009-03 VT100 basic video board $50 54-14185-01 VT101 (I think) video board $50 These were tested several years ago, and I might test them again, but will also have a 30 day warranty. Many Thanks, Paul

16 years, 5 months

OT: Counterfeit ICs

by cclist＠sydex.com

For any of you who were temped to order through one of the Chinese outfits advertising rare and obsolete ICs on the web, here's a story of a guy who had the nerve to sell them to the Pentagon: http://www.edn.com/article/CA6709025.html Cheers, Chuck

16 years, 5 months

RM Nimbus 186 info request....

by afra＠aurigae.demon.co.uk

Hi, On the offchance that someone here may be able to help me...... I'm looking for any low-level technical information about the RM Nimbus 80186 based machine. Specifically I'm looking for details of bios calls, and hardware addresses, bus pinouts etc. If anyone has a copy of "The Nimbus Advanced Programmers Refference Guide" that they would be willing to part with, that would be most helpfull. Cheers. Phill. -- Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric ! "You can twist perceptions, but reality won't budge" -- Rush.

16 years, 5 months

Summagraphics Bit Pad One GPIB protocol documentation?

by derschjo＠mail.msu.edu

I'm working on supporting GPIB tablet support for PERQemu (right now it only supports the 3-button Kriz tablet). Anyone have documentation for the protocol used by the GPIB variant of the Summagraphics Bit Pad One? I've found documentation covering the Bit Pad Two (http://www.calcomp.com/files/Bit%20Pad%202%20Tech%20Ref.pdf) , which appears to be RS-232 only. I'm sure the protocols are similar, anyone know for sure? Thanks, Josh

16 years, 5 months

VT78/MR78/OS78 (was Re: Vintage Computer Forum)

by ethan.dicks＠gmail.com

On 11/25/09, allison <ajp166 at verizon.net> wrote: >> >> I should probably make a post there about my new-to-me VT78. It >> checks out so far, but I don't have a copy of OS/78 to do anything >> "fun" on it yet. I was hoping someone here would respond to my query >> about what's out there for the MR78 >> > The MR78 was only used for the booter. Right. It's just a bunch of ROMs and clock chips pretending to be a PR8E-like papertape reader. > I believe there were at least two booters, RX01, RX02. I've found reference for those as well as a mention of a diagnostic ROM set. I would like to be able to put together a box with 4x or 8x the normal ROM, use modern ROMs and burn all known booters rather than hack on my one-and-only MR78. Fortunately, it hangs off of a DB25, so it should be trivial to redesign and build in the same space. > OS/78 you need to find it on the net, then copy to RX01 > formatted 8" floppy. I've seen OS/278 from the DECUS collection. I must not be looking into the right places for OS/78. Writing the RX01 floppy is no big deal - with what I have sitting around the house, the shortest path is probably to throw an RXV11 or RXV12 into a Qbus box and use vtserver to move the disk image. The second shortest path would be to get around to assembling a 34-to-50-pin cable and using an old PC to write the image. Fortunately, I have multiple 8" drives and several boxes of still-in-the-shrinkwrap 8" disks, most (but not all) already formatted in IBM 3740 format. -ethan

16 years, 5 months

VT78/MR78/OS78 (was Re: Vintage Computer Forum)

by djg＠pdp8online.com

> Never played with COS. I have one COS DECtape for the -8/e + TD8E. I > think I booted it 25 years ago and didn't know how to make it do > anything and put it back on the shelf. > Manuals are here. Probably still not that exciting. http://www.pdp8online.com/pdp8cgi/query_docs/query.pl?Search=cos >> The closest source I know of is OS78 V4 which was for the DECmate I >> http://www.ibiblio.org/pub/academic/computer-science/history/pdp-8/os8/ > >I could use that for my DECmate I anyway. > I made a disk using that source and some others. They are in RX02 mode. http://www.pdp8online.com/images/images/os8/DECmate_I.shtml I haven't seen any original DECmate I disk images around.

16 years, 5 months

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