test-drb April 2005

test-drb@ccmp.vtda.org

269 participants
730 discussions

by ajp166＠bellatlantic.net

>Subject: Re: Navtel 9460 Protocol Analyzer info? > From: Scott Stevens <chenmel at earthlink.net> >And anyway, for a 'serial analyzer' which is probably going to run some >ancient DOS program if it's analyzing conventional serial traffic, some >old 486 laptop (or a 386SX) is probably up to snuff, and will cost less >than said USB to serial or PCMCIA to serial adapter. Plus it's then >'sanctioned' on-topic hardware for this list (kinda). And aren't (at >least some of us) all about practical use as well as fooling around with >old gear? I'd hate to think some of the old stuff isn't still useful in >a practical sense. (not gonna wire two 6402 UARTS to my SYM-1 and make >it a serial analyzer on principle, though) Actually I use a SIIG3000 386 running DOS as it's small brick of a system and for the ability to listen. To inject into the line it's fairly trivial to make an RS232 level OR gate! For general listening MY VT320 in display controls mode does well enough. Allison

19 years, 5 months

SYM-1 vs KIM-1 (was Re: MOS Kim-1 Any idea of it's worth/value?)

by dwight.elvey＠amd.com

>From: "Ethan Dicks" <ethan.dicks at gmail.com> > >On 4/13/05, Dwight K. Elvey <dwight.elvey at amd.com> wrote: >> There were actually two S-100 bus extensions on ebay recently. >> There was the one that was stated as such and there was one >> that was described as a controller for a floppy drive and drive >> ( I forget which machine it was stated as being for, SYM1, KIM1 >> or R65 ). > >Hmm... sorry I missed them. > >> I do have a card that was intended to be used with the SYM-1 to >> drive floppies. When I got it, it was missing the code ROM and >> a data bus buffer. I've since located the code but the buffer chip >> has been a problem. It is one of those oddball national chips >> that can not be easily replaces by a '245 :( > >What's the part number? I might be able to help (I have tubes of >8641s, for example). > >-ethan > Hi I'm looking for a DP8303 but with some software changes I could most likely get a DP8304 to work. Dwight

19 years, 5 months

SYM-1 vs KIM-1 (was Re: MOS Kim-1 Any idea of it's worth/value?)

by dwight.elvey＠amd.com

19 years, 5 months

SYM-1 vs KIM-1 (was Re: MOS Kim-1 Any idea of it's worth/value?)

by dwight.elvey＠amd.com

>From: "Ethan Dicks" <ethan.dicks at gmail.com> > >On 4/12/05, Scott Stevens <chenmel at earthlink.net> wrote: >> Being the 'root for the underdog' sort of person, I'd say 'Synertec rulez, MOS sux' > >Well... since I _have_ a SYM-1, and had the books for it many, many >years prior to locating the computer (like 20 years earlier), I'm >pretty fond of the SYM-1. I also like the fact that the SYM-1 does >_not_ use mask programmed parts (but the KIM-1 does). Other than >that, they are really about the same machine. From a programming >standpoint, I am unaware of any significant differences. I know they >could share peripherals. > >Speaking of peripherals, I remember lots of ads back in the day, >including one for an S-100 chassis for the SYM/KIM. I'd love to see >schematics for that, especially since if I ever have one, I'll >probably have to make my own rather than find one in the wild. I have >a few S-100 cards now (something I didn't have back in my PET days), >and it might be fun to do some driver coding for interesting things. Hi There were actually two S-100 bus extensions on ebay recently. There was the one that was stated as such and there was one that was described as a controller for a floppy drive and drive ( I forget which machine it was stated as being for, SYM1, KIM1 or R65 ). > >I _do_ have (somewhere) the stuff relevant to hooking Commodore IEC >peripherals (1541, 1520, 1526...) to a SYM. That's another thing that >would be fun to implement... disks and files on a 6502 SBC. I do have a card that was intended to be used with the SYM-1 to drive floppies. When I got it, it was missing the code ROM and a data bus buffer. I've since located the code but the buffer chip has been a problem. It is one of those oddball national chips that can not be easily replaces by a '245 :( If I ever get one, I should be able to bring up the original SYM DOS that was really limited. Still, it would be fun. Dwight > >So many 6502 projects, so little time. > >-ethan > >

19 years, 5 months

Navtel 9460 Protocol Analyzer info?

by ajp166＠bellatlantic.net

>Subject: Re: Navtel 9460 Protocol Analyzer info? > From: "Jay West" <jwest at classiccmp.org> >Someday I'll pick up a "datascope" (aka serial protocol analyzer) cheap. I >did a lot of serial communications programming in a prior life, and >absolutely lived with a datascope. Not sure of the brand, but I remember is >was blue. No keyboard in the real sense, but a data entry pad on the front. >It was the most incredibly useful thing... you could program it to watch for >a particular sequence of ascii characters, then start capturing data. One >button would flip the display between ascii/ebcdic, hex, binary.. and it had >a dual display mode where it showed transmit on top of the line and receive >on the bottom of the line. It was a godsend. It had a breakout box built >into it, could buffer to floppy, etc. It could also do sync & async. I happen to have a Atlantic Research Inc, serial datascope. It contains several boards [std bus z80, rom/ram card, CRT5027 based crt controller Card] however no manual. Someday I'll track down at least a schematic and fix the CRT. The boards say T-bar on them so the instument may even be from another company with the ACI label. It would be fun to get it operational. Allison

19 years, 5 months

Apollo 340 machines (Manchester uni, UK)

by julesrichardsonuk＠yahoo.co.uk

Chap at Manchester uni has three Apollo 340 machines (plus assorted spares by the sounds of it) which are heading to the skip today. I've been trying to save these for a couple of weeks but it's just too far away for anyone at the museum to make a dedicated trip to collect them, and none of our people get up to that part of the country very often. Maybe someone local can rescue them instead (or even can hold them on our behalf for a bit!) Shout if so anyway and I can give you contact details - maybe they can be held in a room somewhere for a few days if someone's definitely coming to pick them up. These are early Apollos so it'd be nice to save at least one (earliest ones we have are DN3500 and DN3000 machines) cheers Jules

19 years, 5 months

ebay score

by dwight.elvey＠amd.com

>From: "Bill Sudbrink" <wh.sudbrink at verizon.net> > >woodelf wrote: >> >> Bill Sudbrink wrote: >> >> >OK Sellam, come clean. What have you managed to acquire? >> > >> The hard copy must be 3 or 4 lbs at least. Ducks and runs ... > >I have a good bit more than that! > >Three copy paper boxes full of documentation (appropriate because a lot >of the originally supplied OSI docs were just photocopies, stapled together) >and two more full of the "glossy" docs. The "glossy" docs being the extra >books that they sold, the SAMs manuals, the marketing lit that they also >sold >(did any other company sell their product description pamphlets?) and the >few >price sheets and pages that they gave away. I also have some product >descriptions and price sheets for a couple of OSI third party add-on >companies >in those boxes. > >> Ben alias woodelf >> PS. The impressive thing is that the people with the large computer >> collections have vast amounts of knowlage about the computers >> they have. Something that a average collector does not seem to have >> now days. > >Well, I like to think that I know a few things about OSI but I'll take >this opportunity to make a confession. I've said several times on this >list that you can't make a C4P into a C4P-MF by just adding a 470 board >to it. This was told to me in 1981 by a tech at a local OSI reseller, >The Math Box. I never checked it out for myself. Well, I just did (last >week) and (with OS-65D v3.3) it works just fine as far as I can tell. I >don't know if I misunderstood what the guy was telling me back then or if >he was just wrong. I'm thinking maybe that the 470s came adjusted from >the factory for 8 inch floppy timing and he was trying to tell me that >you couldn't use one with 5 1/4 inch drives without modifications. > >Glad to get that off my chest, >Bill > Hi Bill I'm glad also. Now I can sleep in peace. ;) I only have one of these machines but I forget which one. I just checked that it booted and haven't played with it since ( still on my to do list ). It is in a box with a keyboard attached as part of the box. Dwight

19 years, 5 months

In Spamo Veritas

by jpl15＠panix.com

From a bit of spam that I deleted, but this caught my eye and I parsed it in terms of the List Topic - not what it actually refers to... Judgment Processor Does in have an 'impartiality pipeline'? Cheers John

19 years, 5 months

Appraisals, value, the "Market" was Re: And $500 gets you...

by jfoust＠threedee.com

At 02:45 PM 4/13/2005, vrs wrote: >I think it's like confusing Silicon Valley (or Portland, Oregon) with the >world :-). Maybe if I lived and worked where you do, I would see hundreds >of different venues doing a brisk business in this stuff. [...] >I think the term "the market" should refer to wherever the bulk of the >available stuff trades, (provided that the venues included are actually open >to the general public). There is no "there" there. There will always be tremendous variation in regional density of particular items, and this necessarily affects the price, which is why arbitrage flourishes on eBay. I've never seen most of these BBC micros in person, for example, but I'm sure they're quite common across the pond. There may have been a couple dozen Teraks at a half-dozen universities around the US, but they may not have ever existed in other areas of the country. You have to consider where the items were commonly sold as well as where they were commonly scrapped. - John

19 years, 5 months

AVAILABLE: IBM PC (mdl 5150) w/mon and kb, IBM PS/30 (mdl 30) w/mon and kb

by James＠jdfogg.com

> Subject: AVAILABLE: IBM PC (mdl 5150) w/mon and kb,IBM PS/30 > (mdl 30) w/mon and kb > > Probably don't wanna ship em, or at least not too far. > > --fred I'd definitely be interested, but where are you?

19 years, 5 months

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test-drb April 2005