test-drb October 2006

test-drb@ccmp.vtda.org

217 participants
352 discussions

by cclist＠sydex.com

The talk about RS-232C reminded me of another simple interface that's been around for awhile--MIDI. I hate MIDI cables--I mean I REALLY hate them. I trip over them, they get tangled up in my chair and I'm afraid the dog will eat them. I've seen a couple of wireless MIDI adaptors, but since they're low-volume items, they're freakishly expensive. Does anyone have any ideas or experience with a low-budget wireless MIDI setup? Cheers, Chuck

18 years, 2 months

ESCON TYPE WRITER INTERFACE

by knightbug＠yahoo.com

Hello I was the factory rep on this product. I worked with HP on the installtion traing video. please feel free to reply. bk We will rise up on wings of gold 1Knight __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

18 years, 2 months

wavy diagonal lines

by chrism3667＠yahoo.com

across the screen. Specifically a trs80 model 4. Is this indicative of a video circuitry problem or a display problem? __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

18 years, 2 months

IIci cache cards?

by spectre＠floodgap.com

Anyone got any IIci cache cards they'd be willing to consider parting with? My indefatigable IIci (which has powered DNS, printer services and network power services to my apartment network for going on six years now) has burned through another one, evidenced by 1) a kernel panic in NetBSD 2) the Chimes of Death 3) the Chimes of Death going away replaced by normal booting when I replaced the cache card. It seems I go through one around every two years, so it was due to eat another one, I guess. The 32K variant will do nicely. Please respond offlist, and thanks. -- --------------------------------- personal: http://www.armory.com/~spectre/ --- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- When people get acupuncture, do voodoo dolls die? --------------------------

18 years, 2 months

ID an 8" disk format (SOPHIA SYSTEMS???)

by kelly＠catcorner.org

> [mailto:cctalk-bounces at classiccmp.org]On Behalf Of Dave Mabry > > Kelly Leavitt wrote: > > >Here are some of the strings: > >IN-III MACRO ASMB. (Z80.ZILOG) VER. 1-01 830131 DATE 60. > 1.10 PAGE 1 > >SYSTEM ANALYZER IN-III VER. 2-2 > >ISIS > >IN-IIIDIN6301 > >DINZ80B > > > >This was a pretty standard DS/DD 8" disk that read right in > using a catweasel and also with imagedisk. I think it might > have been an Intellec-III, but that is based on the repeated > appearance of ISIS, and the fact that it is ROM source. > > <SNIP> > One thing that I can say with certainty is that Intel never sold a > development system that used double-sided 8" disks. They had a > double-density format (MMFM, rather than MFM that most used) but they > were single-sided. I have several Series II and Series III Intellec > systems and none has double-sided disk drives. I have verified that it is indeed an DS/DD image. > > Another observation in the above strings...the Z80.ZILOG > isn't Intel. > They never sold anything that supported any Z-80-specific > systems. And > ISIS, from Intel, was ISIS-II. Intel would not have left off > the "-II" > from their identifiers. I have found references to z80 extensions for the Intellec series, however based on the DS/DD discrepancy and other clues, I must agree that this probably is NOT Intellec. > > Now, for my guess. This looks like possibly something from a > competitor > of Intel, or possibly one of the development systems from Zilog or > National. It is possible they used an ISIS-compatible file > format, or > object module format. That may be what the "ISIS" is all > about in that > string. I have been examining more of the disks (there are about 40 that appear to be panasonic source code). I have one that appears to be a CP/M disk with a lot of tools from "SOPHIA SYSTEMS CO., LTD.". They are an ICE developer. 60K CP/M VERS 2.2 SS-5000 SYSTEM Did Sophia Systems make entire units, or just the software and ICE attachments?

18 years, 2 months

PDT-11/150 down

by ssj152＠charter.net

Well, this is my first post to the list in quite a while; most of you may not even remember me... but I have been lurking. Now I have a problem I need help with. I have a PDT-11/150HC, the dual drive model with 32KW and the 3 extra serial ports. It had been working fine, up through last year, when I stored it. I was working on another project, building a PDP-11/53 from a DECServer 550 (like Jonathan Engdahl's) when I needed to copy some floppies. I brought out the trusty old PDT, and of course, it wouldn't work. I am using a VT420 with DECConnect wire and shells to talk to the PDT. The VT and wires are all known good, tested with other equipment. What happens is that when I turn the PDT on and type the 2 "@" characters to set the baud rate (4800), the #2 led properly goes out, the RUN led comes on, but NOTHING comes back to the terminal. Thinking that I needed a NULL MODEM in the cable, I put a MMJ crossover connector block between the terminal and the PDT. Strangely, I had exactly the same results - nothing out on the monitor - with TX and RX swapped how the heck does this happen? As I recall, the usual response is something like "Press B to Boot". In any event, pressing "B" does nothing either. I have performed the self test with the lid off and modules elevated and the result was that the first 4 LED's on the Intelligence Module came on. This is result #17, indicating that either the DISK Controller Module or Cable G1 has failed and need to be replaced - impossible, at least in the case of the Disk Module. Besides, what does this have to do with no response on the terminal? My next step is to test the power supply and trace power to the various modules, as per the Mini-Maintenance manual. I'm hoping that someone on the list is more familiar with the PDT and can offer useful suggestions that might shorten an exhaustive troubleshooting effort - I'm not really up to it. I have as resources 3 books, 1) The PDT 11/150 User Guide (EK-PT150UG-001), 2) The PDT 11/150 Installation Guide (EK-PT150-IN-002), and 3) The PDT 11/150 Mini-Maintenance Hardware Guide (EK-PT150-J1-002). I would very much like to get a copy of EK-PT150-TM, the Technical manual, in print or PDF format. I also have the usual DVM, a Tektronix 2215 dual channel scope, and the memories of being an electronics technician (with a radiotelephone license) during my late 20's, a lifetime ago. I spent the last 20 years of my so-called career as a systems programmer and am now retired. Can someone that knows about the PDT assist me? All useful input appreciated! Stuart Johnson Ssj152 AT charter DOT net Old man, Old hobby

18 years, 2 months

Experience with cartridge archival?

by trixter＠oldskool.org

A mutual acquaintance of mine is trying to write a thesis and needs a little help. He writes: "The project that I am working on is for my Masters in Library Information Science degree with a focus on Archiving. For my paper I have to write a 10 to 12 page paper on a subject that involves the preservation of something that has archival significance. So I decided to do it on video games and what steps are being taken to preserve them on the media that they were originally written on such as Atari and Nintendo cartridges some of which are degrading significantly and no longer work on the game systems they were designed for." If anyone has any help or leads for him, or any experience archiving ROMs/cartridges that may degrade over time and how to properly preserve them, please drop him a line at "andrew.pacilli at simmons.edu". Your input can shape an archivist's future :-) -- Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/ Help our electronic games project: http://www.mobygames.com/ Or check out some trippy MindCandy at http://www.mindcandydvd.com/ A child borne of the home computer wars: http://trixter.wordpress.com/

18 years, 2 months

Info needed on some 1980s-era Intel parts

by ethan.dicks＠gmail.com

I've been trying to puzzle out a board in front of me, loaded with Intel chips. The CPU on it is a 16MHz 80186 - it appears to be an interface peripheral board for some Astro-Med product. Externally, it has a serial port and a GPIB port. What's strange to me is that I can't identify the parts that appear to be the GPIB buffers - a pair of 28-pin Intel D8293s. There's also a P82C08, which I can't find any hard info on. So... does anyone recognize the Intel part numbers P82C08 or D8293 (yes, I know the P is plastic and the D is ceramic; it's the parts themselves I'm curious about). Thanks, -ethan

18 years, 2 months

Honeywell 7-track tape drive - who has EVER seen this?

by hachti＠hachti.de

Hi folks, please take a look at this picture: http://h316.hachti.de?gallery/tape_drive2/dscn1704_1024.jpg More can be found here: http://h316.hachti.de?gallery/tape_drive/ http://h316.hachti.de?gallery/tape_drive2/ Who has ever seen/used/heard about/repaired this kind (similar is ok, too!) of tape drive? Doesn't matter if in a museum, private collection, basement, scrapyard, heaven or hell. Doesn't matter if long time ago or today - let me know! Please contact me if you have seen this kind of machine before. I am looking for EVERY trace of these machines! Every hint is appreciated. Also things like "I have seen such a unit 25 years ago in a factory for women's underwear which is closed since 15 years" are important. I hope to find still some traces. These machines were very heavy so there's a real chance that there are still some of them standing around forgotten. That's a Honeywell 4210 7-track tape drive. Once I've ruined three friends' backs with helping me to get it into my first floor collection room. And now I've got the problem that most of the electronics are missing. I don't have a solution yet. I don't know where to start. And I have no spares. But some documentation. I know only one thing: I want to and will bring it back to work! But it would be better and easier to find spare cards or a second unit. It would also be great to get some pieces (easily exchangeable parts) for some limited time - just to check the rest. So please try to remember and contact me. And yes, I have asked this before. Will do that again and again from time to time. Any luck with that could save me weeks of work (which I actually cannot afford at the moment). Thanks a lot! Best wishes, Philipp :-) -- You have to reboot your computer after powerfail? Haha! http://316.hachti.de

18 years, 2 months

Software Archaeology (was Oregon Software Pascal/2 (24 bit words))

by aek＠bitsavers.org

> Was about your H316. There is nothing new to report. It is still in Canada.

18 years, 2 months

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test-drb October 2006