test-drb December 2015

test-drb@ccmp.vtda.org

191 participants
268 discussions

by ggs＠shiresoft.com

I?ve been tinkering around with my IBM Mainframe terminals and I?m pretty close to having everything the way that I want it. I currently have an IBM 3174-61R Establishment controller connecting to my ?mainframes? via TCP/IP. This allows me to not only connect to my Multiprise 3000 S/390 but also some PCs running Hercules to allow me to run older versions of the mainframe OS?s. I currently have 3 IBM 3179 terminals hooked up. I?ve upgraded the 3174 to be able to boot from a hard disk (it was a supported option). I actually purchased the upgrade from a reputable vendor but after many attempts we could not actually get it to do anything useful. I learned about DavidG?s MFM emulator and that?s now installed in the 3174 which happily boots from it. I still have to figure out a permanent mount for it since the standard 3174 HDD mounts don?t work for the MFM emulator board. One of the last things that I wanted to figure out was how to support multiple sessions. I had configured the 3174 to support multiple sessions on each terminal but following the documentation, I could never figure out how to actually switch between the sessions. Well today I managed to do that. Success! I finally figured out the key sequence for switching sessions. It doesn?t match the IBM documentation. It?s not clear to me if that?s because I haven?t configured something properly on the 3174 or if there?s some other reason behind it. Since I also have the AEA feature that allows me to connect ASCII terminals to the 3174, my next project will be to hook up a couple of the terminals that?re deemed ?compatible? (VT100, ADM5 are on the list) and see how that works. But that also involves navigating the 3174 configuration process which is opaque to say the least (there are configuration screens but you need a manual because the fields only have numbers (e.g. 721) to identify them and no other indication as to how they need to be filled in). Oh, the other bizarre thing about the 3174 that?s been configured with TCP/IP is that I can also connect to ?unix? servers with the 3174?s (and the ASCII terminals too). It?ll be interesting to see how that works on a CUT mode terminal. ;-) TTFN - Guy

8 years, 6 months

IBM PS/2 Model 70 HARD DRIVE NEEDED

by COURYHOUSE＠aol.com

ok we have this In the PS/2 days there where suitcase size machines with plasma displays but they only had a single diskette drive that folded out of the front, we also have the dual disc laptop 1st thing IBM made with lcd then we also have a one that is like a suitcase compaq portable that made compaq famous ok thinks for it all being non scsi! Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 12/18/2015 1:15:22 P.M. US Mountain Standard Time, ggs at shiresoft.com writes: > On Dec 18, 2015, at 12:03 PM, Paul Berger <phb.hfx at gmail.com> wrote: > >> > The screen on the convertable is not plasma, it is a LCD screen and there where two versions one reflective and the other backlit. In the PS/2 days there where suitcase size machines with plasma displays but they only had a single diskette drive that folded out of the front, one model is the 8573-P70. There where 386 and 486 versions of these machines with microchannel card slots and a SCSI disk. > Again, no. They did not ship with a SCSI disk. They used the same disks as were in the model 50 & 70 (which were *not* SCSI). A number of us at IBM (who worked on the SCSI cards spock & tribble) did fit the card (usually spock because it had 512KB of cache) and an IBM 320MB SCSI drive in the P70. It was *not* a standard (ie orderable) configuration but at the time created a wicked machine! TTFN - Guy

8 years, 6 months

WTB: Fluke 9005/9010 pods or whole fluke 9005/9010 with pods

by rescue＠hawkmountain.net

Looking for some Fluke Micro System Troubleshooter stuff: Looking for the following key caps: AUTO, BUS, RAM SHORT, and C Bonus key caps (not needed, but better ones would be nice): RAM LONG, I/O, 1, 2 Also looking for PODS for: 6502 Z80 6809 8080 If you have any of these available, please let me know what you have and a price. Thanks, -- Curt

8 years, 6 months

Decisions you regret (classiccmp related)

by jnc＠mercury.lcs.mit.edu

> From: Doug Ingraham > I regret that when I obtained my Straight 8 system in the early 80's I > chose not to take the ASR-35. > ... > A glass terminal is not the same experience as a teletype. Thank goodness for that! I had the 'joy' of using exclusively Teletypes for the first two years I worked with computers, and I didn't (and still don't) miss them one bit! Which is not to say I look down on those who collect/restore them, I understand they are an important part of the history, and I salute those who are into them. I'm just saying that, as a user, I was glad to move on! Noel

8 years, 6 months

Mystery IC: Allen Bradley 314B102

by tmfdmike＠gmail.com

Folks, I'm still probing the alleged "parallel ASCII" interface that was supposedly fitted to my 'Western I/O' converted IBM 2970 Selectric. Here's where we're at: http://corestore.org/2970pins.jpg I've traced the pins from the DB25 connector back to the board; the ribbon cable in the above pic is straight-through to the DB25. It doesn't resemble any interface with which I'm familiar, and I can't see how it can possibly be parallel. Only the following pins (these are the DB25 pin numbers remember) connect to any pins or devices on the interface board: 9, 10, 11, 13, 17, 19, 21, 22, 23, 24. All other pins are either unconnected, or ground. Of the above 10 pins, 11, 13, 22 & 23 are high at power-up (printer NOT connected to any interface). The only pin with known function is 19, which is 'paper out'; if I toggle the paper out switch I can see it going high and low. There is no frigging way that can be a conventional 8-bit parallel interface, obviously, with only 10 pins in use, and 4 or 5 of them (depending on paper out) high on power-up - obviously signaling something. Whatever it is, most of the pins are driven by an IC - an Allen Bradley 314B102. Google has nothing, except a few for sale. No datasheet anywhere I can find. Can anyone give me a clue as to the purpose and pinouts of an Allen Bradley 314B102??!! Here's the component side of the driver board, the interface and 314B102 bottom right: http://corestore.org/2970driver.jpg Help? Please? Anyone out there with old reference material? Anyone make a stab at what the hell this interface might be??? Maybe, maybe, it's some kind of custom 'internal' interface and was intended to be used with a (missing) external converter box/cable that made a standard parallel interface of it?? Mike http://www.corestore.org 'No greater love hath a man than he lay down his life for his brother. Not for millions, not for glory, not for fame. For one person, in the dark, where no one will ever know or see.'

8 years, 6 months

What did computers without screens do?

by jnc＠mercury.lcs.mit.edu

> From: Chuck Guzis > It's also occurred to me that without screens, we might be better off > today ... The average web-surfing experience blasts the user with tons > of filigree and useless data, but very little useful information. ... > Web sites that have multi-megabyte splash screens that serve no purpose > other than tell you that you've arrived. Agree completely. The amount of useless 'eye candy' on the average Web page is, well, appalling. But then again, the low S/N on developing technologies, as worthless content expands faster than high quality - well, that's nothing new, look at TV. > (oh boy, am I going to get flack on this one) Not so much! Most seem to agree, actually! :-) > Data is cheap and Parkinson's law applies. "90% of _everything_ is crap!" Noel

8 years, 6 months

IBM PS/2 Model 70 HARD DRIVE NEEDED

by COURYHOUSE＠aol.com

OK Yea they were odd inside we have tower here.. think it is a 70 and a 17" or 19 inch MONSTER ibm monitor ( alas B/W). Years and Years ago someone dumped a bunch at a thrift shop.. lots of them! neat here I wish I had kept more of them... I kept the tower and let the desk tops go you see seldom any of these around here. We also kept a LAPTOP IBM with dual floppies and a odd plasma screen all in one IBM computer... and we have an IBM that is like the Compaq Portable and of course a first PC ( where do I get Charlie Chapman look-a-like to have next to it!?) Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 12/18/2015 12:08:25 A.M. US Mountain Standard Tim, ggs at shiresoft.com writes: No they weren't SCSI. Those were only through either a "spock" or "tribble" MCA card. Those were the code names. I have *no* idea what the "real" IBM designation was. ;-) The desktop PS/2 machines (50, 50Z, 70, etc) were all designed with robotic assembly in mind (that's why there are no screws or cables in those machines). To accomplish that the HDD was a non-standard connector. TTFN - Guy On 12/17/15 10:30 PM, COURYHOUSE at aol.com wrote: > did all mod 70s have SCSI drives? > > Ed# > > > In a message dated 12/17/2015 10:54:50 P.M. US Mountain Standard Tim, > mokuba at gmail.com writes: > > I never saw this post, but did end up with a 30MB. I will take another if > available though. > > On Sat, Mar 21, 2015 at 1:27 PM, Daniel Snyder <ddsnyder at zoominternet.net> > wrote: > >> Still looking? >> ----- Original Message ----- From: "Gary Sparkes" <mokuba at gmail.com> >> To: "General Discussion: On-Topic and Off-Topic Posts" < >> cctalk at classiccmp.org>; <unallocated-space at googlegroups.com>; " >> Blabber at hacdc.org" <blabber at hacdc.org>; "HacDC Members Discussion List" < >> members at hacdc.org> >> Sent: Monday, February 16, 2015 9:31 PM >> Subject: IBM PS/2 Model 70 HARD DRIVE NEEDED >> >> >> >> Got a hard down situation and need to re-install/recreate the BBS system > I >>> had running. >>> >>> HDD makes swishy noises when shaken, haven't tried stirring yet. >>> >>> I /guess/ a bootable MCA SCSI card would work too... ;) >>> >>> I had the 160MB drive, but anything above 30 would work - i guess i'll >>> just >>> have to use a SCSI Drive for the file storage area once i get an MCA > SCSI >>> card .... >>> >>> -- >>> Gary G. Sparkes Jr. >>> KB3HAG >>> >> > > -- > Gary G. Sparkes Jr. > KB3HAG >

8 years, 6 months

Classic CMP list fall over again?

by woyciesjes＠sbcglobal.net

Did the email server fall over again? -- --- Dave Woyciesjes --- ICQ# 905818 --- CompTIA A+ Certified IT Tech -http://certification.comptia.org/ --- HDI Certified Support Center Analyst -http://www.ThinkHDI.com/ Registered Linux user number 464583 "Computers have lots of memory but no imagination." "The problem with troubleshooting is that trouble shoots back." - from some guy on the internet.

8 years, 6 months

Decisions you regret (classiccmp related)

by jwest＠classiccmp.org

Noel wrote.... ----------------- Every time I think about it I kick myself... Sigh! Although I suspect a lot of people here have stories like that... ----------------- Yeah Noel, we all do. I had a couple different really great machines offered to me long before I got into collecting. A DG nova 3 and an IBM System/3 come to mind, I'm sure there were others. I declined and they were scrapped. But here's one with a good ending.... Many years ago (I was around 19 years old) I acquired two Microdata Reality M1600 core machines (including full schematics and source code, completely unheard of for those machines). These two particular systems were very unique (basically one of a kind) even within the microdata world. After a time my parents ordered them out of the house and a "friend" agreed to store them. A few weeks after moving them to his house, he informed me that he gave them away and wouldn't tell me to who/where. Decades later I got into collecting, found the classiccmp list, met Jim Stephens here, and we've talked on the phone and met due to our shared history/interest in Pick-based machines. During one conversation it was discovered that - not directly, but through several chains of trades/sales/pickups - Jim Stephens had those exact two systems that I used to own. Given the unique nature of the two machines, there's no doubt they are the exact same ones. But we've also discussed the details of who we each knew, and pretty much ironed out who all's hands they passed through between him and I over the years. So... while I am sad I "let those machines go"... it's great to know that they eventually wound up in a great home of a fellow collector that I know - instead of the shredder! Best, J

8 years, 6 months

Mystery IC: Allen Bradley 314B102

by gerardcjat＠free.fr

@ Brent Hilpert May I ask what software you use for creating your schematics ?? I like the way gates are drawn. Thanks ! --- L'absence de virus dans ce courrier ?lectronique a ?t? v?rifi?e par le logiciel antivirus Avast. https://www.avast.com/antivirus

8 years, 6 months

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test-drb December 2015