Re: Got a Rainbow 100 and ...
On 11/10/18 11:00 PM, Tony Duell wrote: On Sun, Nov 11, 2018 at 6:56 AM Alan Perry wrote: On 11/10/18 10:51 PM, Tony Duell wrote: On Sun, Nov 11, 2018 at 6:47 AM Alan Perry via cctalk wrote: What I got was the system unit, a VR201 monitor, a keyboard, a vertical deskside stand for the system unit, and a LQP02 daisy wheel printer. I also got the MS-DOS and CP/M doc and software slip cover boxes. The CP/M disk box is still sealed and the CP/M docs are still in shrink wrap. The specific need that the seller bought it for involved MS-DOS, not CP/M. Does it have any of the optional expansion boards (hard disk controller, RAM, graphics) in it? Right now I am looking up how to open up the system unit and see what's inside. There's a catch on each side under the 'step'. Release those and the cover comes off. Unplug the drive and power cables from the main PCB assembly (at the rear right), undo the thumbscrews on the back and the PCB assembly slides out. Nice. It is clean on the inside. A very thin coating of dust. As far as the hardware itself ... There is nothing in the left-side drive bay, just the dual floppy drive in the right-side bay. There is a memory expansion board (how can one determine its size?) and the board that the floppy drive connects to (is it all floppy controller?). That's it. Is there anything that I should check on it before I connect it to power? alan -tony
Re: Got a Rainbow 100 and ...
On Sun, Nov 11, 2018 at 6:56 AM Alan Perry wrote: > > > > On 11/10/18 10:51 PM, Tony Duell wrote: > > On Sun, Nov 11, 2018 at 6:47 AM Alan Perry via cctalk > > wrote: > > > >> What I got was the system unit, a VR201 monitor, a keyboard, a vertical > >> deskside stand for the system unit, and a LQP02 daisy wheel printer. I > >> also got the MS-DOS and CP/M doc and software slip cover boxes. The CP/M > >> disk box is still sealed and the CP/M docs are still in shrink wrap. The > >> specific need that the seller bought it for involved MS-DOS, not CP/M. > > > > Does it have any of the optional expansion boards (hard disk controller, > > RAM, graphics) in it? > > Right now I am looking up how to open up the system unit and see what's > inside. There's a catch on each side under the 'step'. Release those and the cover comes off. Unplug the drive and power cables from the main PCB assembly (at the rear right), undo the thumbscrews on the back and the PCB assembly slides out. -tony
Re: Got a Rainbow 100 and ...
On 11/10/18 10:51 PM, Tony Duell wrote: On Sun, Nov 11, 2018 at 6:47 AM Alan Perry via cctalk wrote: What I got was the system unit, a VR201 monitor, a keyboard, a vertical deskside stand for the system unit, and a LQP02 daisy wheel printer. I also got the MS-DOS and CP/M doc and software slip cover boxes. The CP/M disk box is still sealed and the CP/M docs are still in shrink wrap. The specific need that the seller bought it for involved MS-DOS, not CP/M. Does it have any of the optional expansion boards (hard disk controller, RAM, graphics) in it? Right now I am looking up how to open up the system unit and see what's inside. 1. The VR201 monitor is leaking a brown fluid. Doing a little searching, I found some stuff posted here a couple years ago about it being common for them to leak PVA compound, so I am presuming what is what I am seeing. Right now I am looking for something that describes how to open the case up to clean the stuff up. If someone can give me some pointers to some docs/write-ups and save me some time, that would be great. The first thing to do is to fully extend the little 'leg'. Put the monitor the normal way up, press the button on the side(near the bottom) and lift it so the leg slides out. Then, monitor screen-down. Prise (pry?) the circular cap off on the back near the connectors. Undo the screw thus exposed. The case then slides off. Thanks! alan -tony
Re: Got a Rainbow 100 and ...
On Sun, Nov 11, 2018 at 6:47 AM Alan Perry via cctalk wrote: > What I got was the system unit, a VR201 monitor, a keyboard, a vertical > deskside stand for the system unit, and a LQP02 daisy wheel printer. I > also got the MS-DOS and CP/M doc and software slip cover boxes. The CP/M > disk box is still sealed and the CP/M docs are still in shrink wrap. The > specific need that the seller bought it for involved MS-DOS, not CP/M. Does it have any of the optional expansion boards (hard disk controller, RAM, graphics) in it? > > 1. The VR201 monitor is leaking a brown fluid. Doing a little searching, > I found some stuff posted here a couple years ago about it being common > for them to leak PVA compound, so I am presuming what is what I am > seeing. Right now I am looking for something that describes how to open > the case up to clean the stuff up. If someone can give me some pointers > to some docs/write-ups and save me some time, that would be great. The first thing to do is to fully extend the little 'leg'. Put the monitor the normal way up, press the button on the side(near the bottom) and lift it so the leg slides out. Then, monitor screen-down. Prise (pry?) the circular cap off on the back near the connectors. Undo the screw thus exposed. The case then slides off. -tony
Got a Rainbow 100 and ...
Today I picked up a Rainbow 100. The seller bought it new for a specific need and he says that it had been sitting in his barn since '84. It looks like it was a dry barn because things look pretty clean for the most part aside from a thick layer of dust on everything. What I got was the system unit, a VR201 monitor, a keyboard, a vertical deskside stand for the system unit, and a LQP02 daisy wheel printer. I also got the MS-DOS and CP/M doc and software slip cover boxes. The CP/M disk box is still sealed and the CP/M docs are still in shrink wrap. The specific need that the seller bought it for involved MS-DOS, not CP/M. I last saw a Rainbow 100 in college around the time that the seller stopped using this system, so I am getting familiar with it now. I haven't powered anything on yet. Problems so far - 1. The VR201 monitor is leaking a brown fluid. Doing a little searching, I found some stuff posted here a couple years ago about it being common for them to leak PVA compound, so I am presuming what is what I am seeing. Right now I am looking for something that describes how to open the case up to clean the stuff up. If someone can give me some pointers to some docs/write-ups and save me some time, that would be great. 2. The belt that moves the print head is dried out and looks like, if the motor put any load on the belt, it will fail. Is any kind of replacement available? Thanks for any help that can be provided. alan
Re: New to System/36
Good news. At our AHCS club meeting today, someone there just happened to have a keyboard with the correct code page and connector for my terminal. Yvan was correct in that the terminal doesn't operate at all without one. With the keyboard, everything came alive. The machine IPL'd just fine into a login screen after about 8 minutes. We were able to get into the disk editor, recover the username and password, and log-on successfully. So I apparently do have a working set of 1x 30 MB and 1x 60 MB hard disks. Password and data security was not active and there were only 3 total users. The CMAS accounting software menu or library - default for the other users - was not found. I'm assuming it was maybe deleted when the machine was taken out of service. But the system is functional. The BASIC, FORTRAN, and COBOL languages were not installed. But we did try writing a Hello World program in RPG II but it failed to compile correctly! It was fun trying. The default line level editor was about the worst thing I've ever used in 40 years of pounding on a keyboard - and I've seen a lot of bad in that time. I still would like to get a set (or two) of later release SSP disks as as well as archive and reimage some of the application software I have. I'll email Mcguire. But if anyone else has experience in imaging IBM mid-range floppies, I'd love to get some more advice. Thanks, Alan H. On 2018-11-10 15:00, alan--- via cctalk wrote: Thanks Yvan. I was hopeful when the terminal output the standard status line at the bottom with an 08 code in the lower right above the line and a blue K in the bottom center below the line - which I assumed was a keyboard not present error. I could not find the address switch anywhere on that terminal to configure it. The previous owner said it was the system console so I assumed it was already set for address 0 'somehow'. I also assumed the hard drives were bad or the load on them was corrupt when never saw any terminal output after nearly 30 minutes. First thing I should see is the numerical countdown after 4-5 minutes, correct? I have only disk 1 of SSP 3.0. When I try to start the machine using function 3/1000, it throws SRC 210F which the code-manual describes as not being able to find valid sector marks. Not sure if it's a problem with the media or the drive at this point. The machine came from a young man who didn't know much about it. He said it was his fathers and it worked last time it was in-use. But that was at least 15 years ago. It has been siting indoors for that time. So there is hope. The bearings in the hard drives sound pretty bad. But during what I assume is the normal IPL (with no terminal output), the drives are spun-down and then back up again in sequence about 1-2 minutes in. I can also hear the heads engage and vigorously move about a minute past that for a while - which I assume is the IPL trying to load the CPU kernels - but I obviously never get to the IPL sign-on. -Alan H. On 2018-11-10 14:44, Yvan Janssens wrote: You will need the keyboard. Those terminals usually don't come up without it. Good news tho if the keyboard has been nicked, the protocol is compatible-ish with PS/2. I have successfully used $generic_ps2_keyboard with the right plug for it. Make sure to not hit the Windows key (or any other 'new' keys) - you'll lock up the terminal's firmware. You will also have to configure the terminal to use address 0 - Twinax busses have an address range of 0-7 and you need bus 0, address 0 for the console. Generally speaking, bringing up the system is similar to bringing up early AS/400s. /y On Sat, 10 Nov 2018 at 19:59, alan--- via cctalk wrote: Just picked up an IBM System/36 5362 last night. It is in pretty good physical condition with just a few minor scratches - other than needing a thorough cleaning. It has 2 60 MB hard disks in the unit. Not sure of the RAM capacity. Missing the the mode hard key. A few of us tried to get it running tonight. It came with a 3179 twin-ax terminal but no keyboard. We connected the terminal via a twinax cable direct from port 0 to the terminated Y adapter on the terminal. Never got any output on the terminal at any time other than the fairly empty status line. The S/36 front panel console light did illuminate after we connected the terminal. The key was locked to Normal but we were able to by-pass it with a jumper to get it into Service mode. The media that came with it only had disk 1 of an SSP release and we could not get that to IPL from floppy (mode 3 / panel 1000). It stepped the head motor forward and back a couple times, engaged the head, then immediately threw an error code. Any idea where I can get an SSP release for the S/36 5362 and how to write it to 8" floppies? Also where I might find a keyboard for the terminal and what can be done if anything to gauge the health of the hard drives? -Alan H.
Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
If the pulley diameter was 19.0mm, the new pulley would be exactly 22.8mm. It is a simple ratio problem. The motors rotation is synchronous to the line frequency. It turns 50/60 too slow. To speed it up is 6/5. The speed of the belt is proportional to the radius of the pulleys. If it was a crowned belt, a fine tune can be done with the tension of the belt. A tighter belt will run a little slower because most of it rides lower on the pulley. The tension on the belt is the same everywhere, not counting bearing and drag on the disk. This means the effective rate is determined, mainly, by the where the belt rides on the pulley. Dwight From: cctalk on behalf of Chuck Guzis via cctalk Sent: Saturday, November 10, 2018 12:38 PM To: Fred Cisin via cctalk Subject: Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B On 11/10/18 12:33 PM, Fred Cisin via cctalk wrote: >>> He needs a larger pulley if going from 60 to 50 ( as a motor pulley >>> ). It needs to be 20% bigger because the motor turns slower on 50 Hz. >>> 6/5 to be exact. > On Sat, 10 Nov 2018, Chuck Guzis via cctalk wrote: >> No argument there--but the size increment is pretty small. Consider >> that a typical motor pulley is about 19 mm in diameter, so a 20% >> increase would be only about 23 mm. > > Depending on the drive, WHICH pulley should be changed? The motor drive pulley is the easiest. You might even find a ready-made one in an engineering findings catalog. Alternatively, consider this YT video for a DIY frequency changer: https://www.youtube.com/watch?v=mEiUt56elAw --Chuck
Re: Did anyone see Vintage Tech Hunters on Discovery Canada yet?
On Fri, Nov 9, 2018 at 12:24 AM Ethan via cctalk wrote: > I tried to watch it on the drive home from work today. Youtube video had a > strike (takedown) so it's gone. The web site had IP geolocation and > rejected my phone. So looks like it's Canada only. Discovery is working a deal for a US release soon. Maybe early next year. > So most people will need to use a VPN to get to the Discovery site from a > .ca IP, or maybe it's nerdy enough that it will show up via various > underground conduits of content. I am going to ping a friend tomorrow who > has a 500TB TV rig and see if he has heard of it. ^^ storage envy. Makes my 12.5TB array at home feel cramped and confining. 500TB onlineI'd scan every document at 600 dpi color and save the TIFs :)
Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
On 11/10/18 12:33 PM, Fred Cisin via cctalk wrote: >>> He needs a larger pulley if going from 60 to 50 ( as a motor pulley >>> ). It needs to be 20% bigger because the motor turns slower on 50 Hz. >>> 6/5 to be exact. > On Sat, 10 Nov 2018, Chuck Guzis via cctalk wrote: >> No argument there--but the size increment is pretty small. Consider >> that a typical motor pulley is about 19 mm in diameter, so a 20% >> increase would be only about 23 mm. > > Depending on the drive, WHICH pulley should be changed? The motor drive pulley is the easiest. You might even find a ready-made one in an engineering findings catalog. Alternatively, consider this YT video for a DIY frequency changer: https://www.youtube.com/watch?v=mEiUt56elAw --Chuck
Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
He needs a larger pulley if going from 60 to 50 ( as a motor pulley ). It needs to be 20% bigger because the motor turns slower on 50 Hz. 6/5 to be exact. On Sat, 10 Nov 2018, Chuck Guzis via cctalk wrote: No argument there--but the size increment is pretty small. Consider that a typical motor pulley is about 19 mm in diameter, so a 20% increase would be only about 23 mm. Depending on the drive, WHICH pulley should be changed?
Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
On 11/10/18 11:42 AM, dwight via cctalk wrote: > He needs a larger pulley if going from 60 to 50 ( as a motor pulley ). It > needs to be 20% bigger because the motor turns slower on 50 Hz. 6/5 to be > exact. > Dwight No argument there--but the size increment is pretty small. Consider that a typical motor pulley is about 19 mm in diameter, so a 20% increase would be only about 23 mm. One could also take Tony's approach and simply cobble up a crystal-controlled 60Hz source for the motor. Shouldn't be too difficult--I suspect that the motor doesn't draw more than about 30W. If you had an excess of 12VDC, you could possibly use an inexpensive inverter to do the job. --Chuck
Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
On Sat, Nov 10, 2018 at 7:42 PM dwight via cctalk wrote: > > He needs a larger pulley if going from 60 to 50 ( as a motor pulley ). It > needs to be 20% bigger because the motor turns slower on 50 Hz. 6/5 to be > exact. I like the way Tektronix handled this issue in the 8560 (service manual on Bitsavers). They produced a 60Hz supply by chopping rectified and smoothed mains, thus the incoming mains frequency does not matter. An 8560 will work in the States or in Europe with no pulley changes. -tony >
Re: New to System/36
Thanks Yvan. I was hopeful when the terminal output the standard status line at the bottom with an 08 code in the lower right above the line and a blue K in the bottom center below the line - which I assumed was a keyboard not present error. I could not find the address switch anywhere on that terminal to configure it. The previous owner said it was the system console so I assumed it was already set for address 0 'somehow'. I also assumed the hard drives were bad or the load on them was corrupt when never saw any terminal output after nearly 30 minutes. First thing I should see is the numerical countdown after 4-5 minutes, correct? I have only disk 1 of SSP 3.0. When I try to start the machine using function 3/1000, it throws SRC 210F which the code-manual describes as not being able to find valid sector marks. Not sure if it's a problem with the media or the drive at this point. The machine came from a young man who didn't know much about it. He said it was his fathers and it worked last time it was in-use. But that was at least 15 years ago. It has been siting indoors for that time. So there is hope. The bearings in the hard drives sound pretty bad. But during what I assume is the normal IPL (with no terminal output), the drives are spun-down and then back up again in sequence about 1-2 minutes in. I can also hear the heads engage and vigorously move about a minute past that for a while - which I assume is the IPL trying to load the CPU kernels - but I obviously never get to the IPL sign-on. -Alan H. On 2018-11-10 14:44, Yvan Janssens wrote: > You will need the keyboard. Those terminals usually don't come up without it. > Good news tho if the keyboard has been nicked, the protocol is compatible-ish > with PS/2. I have successfully used $generic_ps2_keyboard with the right plug > for it. Make sure to not hit the Windows key (or any other 'new' keys) - > you'll lock up the terminal's firmware. > > You will also have to configure the terminal to use address 0 - Twinax busses > have an address range of 0-7 and you need bus 0, address 0 for the console. > > Generally speaking, bringing up the system is similar to bringing up early > AS/400s. > > /y > > On Sat, 10 Nov 2018 at 19:59, alan--- via cctalk > wrote: > >> Just picked up an IBM System/36 5362 last night. It is in pretty good >> physical condition with just a few minor scratches - other than needing >> a thorough cleaning. It has 2 60 MB hard disks in the unit. Not sure >> of the RAM capacity. Missing the the mode hard key. >> >> A few of us tried to get it running tonight. It came with a 3179 >> twin-ax terminal but no keyboard. We connected the terminal via a >> twinax cable direct from port 0 to the terminated Y adapter on the >> terminal. Never got any output on the terminal at any time other than >> the fairly empty status line. The S/36 front panel console light did >> illuminate after we connected the terminal. The key was locked to >> Normal but we were able to by-pass it with a jumper to get it into >> Service mode. The media that came with it only had disk 1 of an SSP >> release and we could not get that to IPL from floppy (mode 3 / panel >> 1000). It stepped the head motor forward and back a couple times, >> engaged the head, then immediately threw an error code. >> >> Any idea where I can get an SSP release for the S/36 5362 and how to >> write it to 8" floppies? Also where I might find a keyboard for the >> terminal and what can be done if anything to gauge the health of the >> hard drives? >> >> -Alan H.
Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
He needs a larger pulley if going from 60 to 50 ( as a motor pulley ). It needs to be 20% bigger because the motor turns slower on 50 Hz. 6/5 to be exact. Dwight From: cctalk on behalf of Chuck Guzis via cctalk Sent: Saturday, November 10, 2018 8:32 AM To: dwight via cctalk Subject: Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B On 11/10/18 7:55 AM, dwight via cctalk wrote: > Typically, both the motor pulley and belt are changed as a set to keep the > distance from motor to flywheel the same. > In my younger days, a friend and I ground down a motor pulley, on a 50 Hz > Shugart 800, to be a 60 Hz. We used a file while the motor ran. After getting > the right size, we had to file mounting holes for the motor to keep the same > belt. It was not the best way but we couldn't afford a new drive and we got > the drive cheap, from surplus. > If you change the flywheel, the distance will be to great to use the same > belt or even close to the same belt. It may not even fit in the area allowed > for the flywheel. > According to the manual, for this drive, only the motor pulley needs to be > changed as there is enough adjustment to use the same belt. I was gifted a brand-new Qume 842 220V 50Hz drive many years ago. The 220V was no problem--I had a dual-primary transformer on the power supply, so it could be reconfigured as a 240V autotransformer and still have enough capability for the drive electronics. The problem was the 60Hz line frequency. Essentially, the motor turns somewhat faster, so you need a smaller motor pulley. I calculated what I needed and found a flanged toothed pulley for a timing belt that was exactly the right size. While the original motor pulley was crowned, the timing pulley worked exactly as calculated. It was not necessary to change the drive belt--the size difference was small enough that it could be swamped out by loosening the motor mounting bolts and adjusting. I still have the drive today--and it still works. --Chuck
RE: VAX 9440
Even LCM has had issues. For example, with IBM 43xx boxes. I seem to remember their first box died with memory issues and the second had PSU issues. Not sure if the PSU is fixed. In the UK TNMOC have an ICL 2900 and that is somewhat temperamental and uses a disk drive emulator. They have all the ICL fiche http://www.tnmoc.org/special-projects/icl-2966 CHM keep the IBM1401 working because they have two and have plenty of spares. Large systems always needed a lot of TLC to keep them running When in production older systems had an on-site engineer. Honeywell L66 systems also came with an automated board tester that was used to diagnose chip level faults I know the DEC systems are more modern and so should be more stable, but don't underestimate the work required. Dave > -Original Message- > From: cctalk On Behalf Of Lee Courtney via > cctalk > Sent: 10 November 2018 18:25 > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: Re: VAX 9440 > > LCM has successfully restored and is running multiple large vintage systems. > Not easy, but doable. > > Lee C. > > On Sat, Nov 10, 2018 at 7:55 AM Jim Manley via cctalk > > wrote: > > > Evan said it was in service until a couple of months ago, so it should > > power up OK, if it could all be electrically and mechanically stitched > > back together carefully. The question is probably, could they afford > > the power bill? We have a bunch of Crays and CDCs at the Computer > > History Museum, and if they were operational, we'd probably have to > > take up a special very-large-hat-passing collection just to pay the > > power bill for the > > multiple,- multi-ton refrigeration units (at least one was about a > > seven-ton unit, IIRC)! Then, there's the problem of replacement parts > > for when, not if, things fail, not to mention the labor expertise and > > availability. It's one thing to replace discrete transistors in our > > IBM 1401, but, it's quite another to desolder and yank various little > > black rectangles off extremely dense circuit boards without destroying > > anything else ... and then solder in a replacement, if you can find > > one not already firmly attached to another board with another kind of > > failure. That assumes that problems can even be isolated, although at > > least more modern systems tend to have self-diagnostic capabilities, > > at least above a certain level of functionality, or lack thereof. > > > > On Sat, Nov 10, 2018 at 3:26 AM Pontus Pihlgren via cctalk < > > cctalk@classiccmp.org> wrote: > > > > > That is a behemoth!! > > > > > > Did you ger that huge powerforming thingy that goes with it? > > > > > > Are you crazy enough to atempt a power-up? > > > > > > /P > > > > > > On Wed, Nov 07, 2018 at 09:55:07PM -0500, Evan Koblentz via cctalk > wrote: > > > > The VCF museum took delivery of a VAX 9440 today. > > > > > > > > It arrived in two 28-foot trailers. Here's our forklift driver > > > > beginning to unload the first truck: > > > > > > > > > > > > > https://drive.google.com/file/d/1E- > Q5xrsYXyjrZEZh92xIBhlStvvNUcRV/view > > ?usp=sharing > > > > > > > > Here's a teaser picture of the main cabinet: > > > > > > > > > > > > > > https://drive.google.com/file/d/1bEpSMzBEeOvuDnzPQ9Npc7iYmDhjZq8c/vi > ew > > ?usp=sharing > > > > > > > > The full system is 30-40 feet long when it's all set up! It is in > > > > pristine condition and was in service at a defense contractor > > > > until a couple of months ago. > > > > > > > > Rumor has it that we arranged for another one to land in Dave > > > > McGuire's Large Scale Systems Museum collection, and a third to be > > > > with Bob Roswell's System Source collection. :) Perhaps they'll > > > > post updates too! > > > > > > > > -- > Lee Courtney > +1-650-704-3934 cell
New to System/36
Just picked up an IBM System/36 5362 last night. It is in pretty good physical condition with just a few minor scratches - other than needing a thorough cleaning. It has 2 60 MB hard disks in the unit. Not sure of the RAM capacity. Missing the the mode hard key. A few of us tried to get it running tonight. It came with a 3179 twin-ax terminal but no keyboard. We connected the terminal via a twinax cable direct from port 0 to the terminated Y adapter on the terminal. Never got any output on the terminal at any time other than the fairly empty status line. The S/36 front panel console light did illuminate after we connected the terminal. The key was locked to Normal but we were able to by-pass it with a jumper to get it into Service mode. The media that came with it only had disk 1 of an SSP release and we could not get that to IPL from floppy (mode 3 / panel 1000). It stepped the head motor forward and back a couple times, engaged the head, then immediately threw an error code. Any idea where I can get an SSP release for the S/36 5362 and how to write it to 8" floppies? Also where I might find a keyboard for the terminal and what can be done if anything to gauge the health of the hard drives? -Alan H.
Re: RS6k 7012/320H woes
Paul Berger via cctalk wrote: On 2018-11-07 8:57 PM, Carlos E Murillo-Sanchez via cctalk wrote: So, if I were to hunt for installation media for AIX, which version would you recommend for a 320H with 32MB of memory, i.e., the latest that would run and not get too bogged down by that amount of memory? I can switch to a larger SCSI disk if it need be, but hopefully not larger than 2GB. Carlos. I am no longer sure when support for microchannel was dropped from AIX, I have always been on the hardware side with limited involvement with software. Doing a quick look it would seem that it is likely that some level of version 5 was the last one. Version 6.1 was 64 bit only and required a POWER4 or later processor. Paul. Thanks everyone for your suggestions. Here's an update: 1) The "terminal interposer cable" implements exactly what I had already tried with my rs-232 breakout box, namely (taken from the net): DB25 to DB25 or DB9 2 TD to 3 RD - 3 3 RD to 2 TD - 2 4 RTS to 5 CTS - 8 5 CTS to 4 RTS - 7 7 GND to 7 GND - 5 6 & 8 DSR & DCD to 20 DTR - 4 (very important) 20 DTR to 6 & 8 DSR & DCD - 6 & 1 Still, no luck making the console work; the 320H does not assert DTR or RTS even though it is seeing DSR, CTS, and DCD asserted. 2) I cleaned the floppy drive (it wasn't that dirty), re-wrote the four aix diagnostics floppies and tried them once more in service mode. The same thing happened: it reads the complete first disk (apparently without error), but then it goes again to read the hard drive and stalls in the same spot. Does anybody have images of diagnostics floppies that would be known to work in a 320H? 3) I now have AIX 4.3.3 install CDs. Does the 320H expect a CDROM drive to be at a specific SCSI ID? Carlos.
Re: VAX 9440
LCM has successfully restored and is running multiple large vintage systems. Not easy, but doable. Lee C. On Sat, Nov 10, 2018 at 7:55 AM Jim Manley via cctalk wrote: > Evan said it was in service until a couple of months ago, so it should > power up OK, if it could all be electrically and mechanically stitched back > together carefully. The question is probably, could they afford the power > bill? We have a bunch of Crays and CDCs at the Computer History Museum, > and if they were operational, we'd probably have to take up a special > very-large-hat-passing collection just to pay the power bill for the > multiple,- multi-ton refrigeration units (at least one was about a > seven-ton unit, IIRC)! Then, there's the problem of replacement parts for > when, not if, things fail, not to mention the labor expertise and > availability. It's one thing to replace discrete transistors in our IBM > 1401, but, it's quite another to desolder and yank various little black > rectangles off extremely dense circuit boards without destroying anything > else ... and then solder in a replacement, if you can find one not already > firmly attached to another board with another kind of failure. That > assumes that problems can even be isolated, although at least more modern > systems tend to have self-diagnostic capabilities, at least above a certain > level of functionality, or lack thereof. > > On Sat, Nov 10, 2018 at 3:26 AM Pontus Pihlgren via cctalk < > cctalk@classiccmp.org> wrote: > > > That is a behemoth!! > > > > Did you ger that huge powerforming thingy that goes > > with it? > > > > Are you crazy enough to atempt a power-up? > > > > /P > > > > On Wed, Nov 07, 2018 at 09:55:07PM -0500, Evan Koblentz via cctalk wrote: > > > The VCF museum took delivery of a VAX 9440 today. > > > > > > It arrived in two 28-foot trailers. Here's our forklift driver > > > beginning to unload the first truck: > > > > > > > > > https://drive.google.com/file/d/1E-Q5xrsYXyjrZEZh92xIBhlStvvNUcRV/view?usp=sharing > > > > > > Here's a teaser picture of the main cabinet: > > > > > > > > > https://drive.google.com/file/d/1bEpSMzBEeOvuDnzPQ9Npc7iYmDhjZq8c/view?usp=sharing > > > > > > The full system is 30-40 feet long when it's all set up! It is in > > > pristine condition and was in service at a defense contractor until > > > a couple of months ago. > > > > > > Rumor has it that we arranged for another one to land in Dave > > > McGuire's Large Scale Systems Museum collection, and a third to be > > > with Bob Roswell's System Source collection. :) Perhaps they'll > > > post updates too! > > > -- Lee Courtney +1-650-704-3934 cell
Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
On 11/10/18 7:55 AM, dwight via cctalk wrote: > Typically, both the motor pulley and belt are changed as a set to keep the > distance from motor to flywheel the same. > In my younger days, a friend and I ground down a motor pulley, on a 50 Hz > Shugart 800, to be a 60 Hz. We used a file while the motor ran. After getting > the right size, we had to file mounting holes for the motor to keep the same > belt. It was not the best way but we couldn't afford a new drive and we got > the drive cheap, from surplus. > If you change the flywheel, the distance will be to great to use the same > belt or even close to the same belt. It may not even fit in the area allowed > for the flywheel. > According to the manual, for this drive, only the motor pulley needs to be > changed as there is enough adjustment to use the same belt. I was gifted a brand-new Qume 842 220V 50Hz drive many years ago. The 220V was no problem--I had a dual-primary transformer on the power supply, so it could be reconfigured as a 240V autotransformer and still have enough capability for the drive electronics. The problem was the 60Hz line frequency. Essentially, the motor turns somewhat faster, so you need a smaller motor pulley. I calculated what I needed and found a flanged toothed pulley for a timing belt that was exactly the right size. While the original motor pulley was crowned, the timing pulley worked exactly as calculated. It was not necessary to change the drive belt--the size difference was small enough that it could be swamped out by loosening the motor mounting bolts and adjusting. I still have the drive today--and it still works. --Chuck
Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
Typically, both the motor pulley and belt are changed as a set to keep the distance from motor to flywheel the same. In my younger days, a friend and I ground down a motor pulley, on a 50 Hz Shugart 800, to be a 60 Hz. We used a file while the motor ran. After getting the right size, we had to file mounting holes for the motor to keep the same belt. It was not the best way but we couldn't afford a new drive and we got the drive cheap, from surplus. If you change the flywheel, the distance will be to great to use the same belt or even close to the same belt. It may not even fit in the area allowed for the flywheel. According to the manual, for this drive, only the motor pulley needs to be changed as there is enough adjustment to use the same belt. Dwight From: cctalk on behalf of Guy Dunphy via cctalk Sent: Saturday, November 10, 2018 6:19 AM To: Riesen Thomas; General Discussion: On-Topic and Off-Topic Posts Subject: Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B Ok. Those are quite small. So you have one? Or those are not yours? If you have one, and a way to accurately measure it, making more will be easy for anyone with a lathe. I could do it, but surely you can find a machinist closer to home? Guy At 01:03 PM 10/11/2018 +, Riesen Thomas wrote: >Guy, >I am looking for small motor pulley ... see pic ... >Regards >Thomas > >-Ursprüngliche Nachricht- >Von: Guy Dunphy [mailto:gu...@optusnet.com.au] >Gesendet: Samstag, 10. November 2018 13:25 >An: Riesen Thomas ; General Discussion: On-Topic and >Off-Topic Posts >Betreff: Re: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B > >At 12:03 PM 10/11/2018 +, you wrote: >>Hi all >> >>Any suggestions where to find two 50Hz-Pulleys for the 8" Floppy drive >>Mitsubishi M2894-63B? >> >>If there also the appropriate ribbon gummies available, I would be very >>happy. >> >>Regards >>Thomas > > >Do you know what they look like, and the dimensions? >Because I have these. http://everist.org/pics/misc/IMG_1655_pulley_800.jpg > >_Maybe_ they were off Mitsubishi drives, not sure. Had them in a box of floppy >drive related bits for a lng time, and have no recollection of where they >came from. >These are 49.0 mm OD, hole 4.7 mm dia. And this is Australia, with 50Hz mains. > >Guy > > >Attachment Converted: "f:\email\attach\Pully_8Zoll_02.jpg" > >Attachment Converted: "f:\email\attach\Pully_8Zoll_01.jpg" >
Re: VAX 9440
Evan said it was in service until a couple of months ago, so it should power up OK, if it could all be electrically and mechanically stitched back together carefully. The question is probably, could they afford the power bill? We have a bunch of Crays and CDCs at the Computer History Museum, and if they were operational, we'd probably have to take up a special very-large-hat-passing collection just to pay the power bill for the multiple,- multi-ton refrigeration units (at least one was about a seven-ton unit, IIRC)! Then, there's the problem of replacement parts for when, not if, things fail, not to mention the labor expertise and availability. It's one thing to replace discrete transistors in our IBM 1401, but, it's quite another to desolder and yank various little black rectangles off extremely dense circuit boards without destroying anything else ... and then solder in a replacement, if you can find one not already firmly attached to another board with another kind of failure. That assumes that problems can even be isolated, although at least more modern systems tend to have self-diagnostic capabilities, at least above a certain level of functionality, or lack thereof. On Sat, Nov 10, 2018 at 3:26 AM Pontus Pihlgren via cctalk < cctalk@classiccmp.org> wrote: > That is a behemoth!! > > Did you ger that huge powerforming thingy that goes > with it? > > Are you crazy enough to atempt a power-up? > > /P > > On Wed, Nov 07, 2018 at 09:55:07PM -0500, Evan Koblentz via cctalk wrote: > > The VCF museum took delivery of a VAX 9440 today. > > > > It arrived in two 28-foot trailers. Here's our forklift driver > > beginning to unload the first truck: > > > > > https://drive.google.com/file/d/1E-Q5xrsYXyjrZEZh92xIBhlStvvNUcRV/view?usp=sharing > > > > Here's a teaser picture of the main cabinet: > > > > > https://drive.google.com/file/d/1bEpSMzBEeOvuDnzPQ9Npc7iYmDhjZq8c/view?usp=sharing > > > > The full system is 30-40 feet long when it's all set up! It is in > > pristine condition and was in service at a defense contractor until > > a couple of months ago. > > > > Rumor has it that we arranged for another one to land in Dave > > McGuire's Large Scale Systems Museum collection, and a third to be > > with Bob Roswell's System Source collection. :) Perhaps they'll > > post updates too! >
Re: AW: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
Ok. Those are quite small. So you have one? Or those are not yours? If you have one, and a way to accurately measure it, making more will be easy for anyone with a lathe. I could do it, but surely you can find a machinist closer to home? Guy At 01:03 PM 10/11/2018 +, Riesen Thomas wrote: >Guy, >I am looking for small motor pulley ... see pic ... >Regards >Thomas > >-Ursprüngliche Nachricht- >Von: Guy Dunphy [mailto:gu...@optusnet.com.au] >Gesendet: Samstag, 10. November 2018 13:25 >An: Riesen Thomas ; General Discussion: On-Topic and >Off-Topic Posts >Betreff: Re: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B > >At 12:03 PM 10/11/2018 +, you wrote: >>Hi all >> >>Any suggestions where to find two 50Hz-Pulleys for the 8" Floppy drive >>Mitsubishi M2894-63B? >> >>If there also the appropriate ribbon gummies available, I would be very >>happy. >> >>Regards >>Thomas > > >Do you know what they look like, and the dimensions? >Because I have these. http://everist.org/pics/misc/IMG_1655_pulley_800.jpg > >_Maybe_ they were off Mitsubishi drives, not sure. Had them in a box of floppy >drive related bits for a lng time, and have no recollection of where they >came from. >These are 49.0 mm OD, hole 4.7 mm dia. And this is Australia, with 50Hz mains. > >Guy > > >Attachment Converted: "f:\email\attach\Pully_8Zoll_02.jpg" > >Attachment Converted: "f:\email\attach\Pully_8Zoll_01.jpg" >
Re: 50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
At 12:03 PM 10/11/2018 +, you wrote: >Hi all > >Any suggestions where to find two 50Hz-Pulleys for the 8" Floppy drive >Mitsubishi M2894-63B? > >If there also the appropriate ribbon gummies available, I would be very >happy. > >Regards >Thomas Do you know what they look like, and the dimensions? Because I have these. http://everist.org/pics/misc/IMG_1655_pulley_800.jpg _Maybe_ they were off Mitsubishi drives, not sure. Had them in a box of floppy drive related bits for a lng time, and have no recollection of where they came from. These are 49.0 mm OD, hole 4.7 mm dia. And this is Australia, with 50Hz mains. Guy
50Hz Pulley for 8" Floppy Drive Mitshubishi M2894-63B
Hi all Any suggestions where to find two 50Hz-Pulleys for the 8" Floppy drive Mitsubishi M2894-63B? If there also the appropriate ribbon gummies available, I would be very happy. Regards Thomas
Re: DEC Alpha Bug Check Crash
It maybe that the DECW$Config.exe image is bad, since that is where the bugcheck always occurs. Although this is confusing because it did successfully boot in console mode previously. While it's not impossible, I doubt the problem is in the DECW$Config.exe image. I think it is more likely to be in a device driver image which is exercised because of an I/O done by DECW$Config.exe. It may be that the bugcheck always happens when DECW$Config.exe is running because DECW$Config.exe is the first thing to touch the I/O device in question. Regards, Peter Coghlan.
Re: VAX 9440
That is a behemoth!! Did you ger that huge powerforming thingy that goes with it? Are you crazy enough to atempt a power-up? /P On Wed, Nov 07, 2018 at 09:55:07PM -0500, Evan Koblentz via cctalk wrote: > The VCF museum took delivery of a VAX 9440 today. > > It arrived in two 28-foot trailers. Here's our forklift driver > beginning to unload the first truck: > > https://drive.google.com/file/d/1E-Q5xrsYXyjrZEZh92xIBhlStvvNUcRV/view?usp=sharing > > Here's a teaser picture of the main cabinet: > > https://drive.google.com/file/d/1bEpSMzBEeOvuDnzPQ9Npc7iYmDhjZq8c/view?usp=sharing > > The full system is 30-40 feet long when it's all set up! It is in > pristine condition and was in service at a defense contractor until > a couple of months ago. > > Rumor has it that we arranged for another one to land in Dave > McGuire's Large Scale Systems Museum collection, and a third to be > with Bob Roswell's System Source collection. :) Perhaps they'll > post updates too!
