Re: PDP-12 Restoration at the RICM

We spent a few more hours on the PDP-12 today... With the machine just powered on the stack 0/1 regulator output was 20.04V. With tune3 running in field 1 and testing field 0 the stack 0/1 regulator output was 19.93. No memory errors were reported. When the voltage was adjust up to 22.5 and down

UNIBUS extension card/cable sets Was: Looking for info on National Semiconductor RAM board (VAX 11/730)

> From: tony duell > a 'Unibus Out', you can plug a Unibus cable in there to link to an > expansion box. The official way involved special dual-height cards at > each end with 3 40-way Berg-type cables linking them. So I'm trying to look into this (BC11 cables being unobtainium th

Re: UNIBUS extension card/cable sets Was: Looking for info on National Semiconductor RAM board (VAX 11/730)

On Mon, Jun 22, 2015 at 11:09:38AM -0400, Noel Chiappa wrote: >I assume the M9014/M9015 are a pair, one used at the start of the cable, and >one at the end? Interesting. I can't think of a reason why the two ends would need to be different, but otherwise why do both exist? I've seen M9014s only

Re: UNIBUS extension card/cable sets Was: Looking fo

> From: John Wilson > I've seen M9014s only at the far end of the UBAs on a KS10, so it > wasn't taking the place of a BC11. ??? If it wasn't take the place of a BC11 (i.e. proving a path for the UNIBUS out), what was it doing? > it'd certainly be easy to make replacements for th

Re: UNIBUS extension card/cable sets Was: Looking for info on National Semiconductor RAM board (VAX 11/730)

FYI, in my 750, the UNIBUS expansion has a L0010 in the main cabinet and a M9014 in the expansion cabinet. I didn't note the details of the cable(s) between the two when I did the inventory of my system. On another topic, we had discussed me going through my B1000 stuff and Burroughs contacts

Re: UNIBUS extension card/cable sets Was: Looking for info on National Semiconductor RAM board (VAX 11/730)

On 6/22/15 8:51 AM, Alan Perry wrote: On another topic, we had discussed me going through my B1000 stuff and Burroughs contacts to assist the buyer of that system that you facilitated. Unfortunately, all that I have come up with are dead ends. I found additional material, but is all pretty mu

Re: UNIBUS extension card/cable sets Was: Looking fo

On Mon, Jun 22, 2015 at 11:46:08AM -0400, Noel Chiappa wrote: >> I've seen M9014s only at the far end of the UBAs on a KS10, so it >> wasn't taking the place of a BC11. > >??? If it wasn't take the place of a BC11 (i.e. proving a path for the UNIBUS >out), what was it doing? OK then I gues

Re: Tru64 LSM

I wish I could help you with that but I can't. But I can talk about partitions, if you are using the advanced file system then none of the partition rules apply, if you are using the ufs then the traditional layout is this: a - boot partition, mounted as / unlike linux, there is gener

RE: Tru64 LSM

Hi there! Thanks for the reply! I'm using AdvFS. You just mean that the partitions don't actually have to conform to any specific convention, right? The AdvFs domains still get defined on disk partitions, if you look at the symlinks in /etc/fdmns/. You can put a symlink to a LSM volu

Re: UNIBUS extension card/cable sets Was: Looking fo

The 3 bergs to unibus was used in the RK8-E, the unibus end plugging into the first physical drive. Between unibus backplanes were always M920, M9202, bus margin jumpers, which i can't remember the part numbers, and various Albe and other non-dec options. The cable was always a BC11A-XX, i think 2

Re: HP 2113e Battery resistor

And I opened the pack up, and you are 100% right! It's just a plastic shell containing 10 big C-size cells, 3.5 A.hr each, indeed from the time period it must be NiCd! Now if I can find similar cells I will be able to reconstruct the pack inside the same shell. It will even look like the original.

RE: Tru64 LSM

On Mon, 22 Jun 2015, Benjamin Huntsman wrote: >I'm using AdvFS. You just mean that the partitions don't actually have > to conform to any specific convention, right? The AdvFs domains still get > defined on disk partitions, if you look at the symlinks in > /etc/fdmns/. Now I'm embarrassed!

RE: UNIBUS extension card/cable sets Was: Looking for info on National Semiconductor RAM board (VAX 11/730)

> So I'm trying to look into this (BC11 cables being unobtainium these days, at > least at prices which are less their weight in gold). Are they really that rare? I've got a small box of them here. > I assume the M9014/M9015 are a pair, one used at the start of the cable, and > one at the end?

George!

Here's a new picture of "George" -- aka the Philbrick analog computer that MARCH rescued two months ago. It was used at M.I.T. from 1958-1970. http://snarc.net/george.jpg

1990 Era computer room

I saw this newpaper photo on ebay, item 191606970872, where these 2 big wigs are proudly standing in front of their computer system looking over some printout. The actual computers in the picture don't look familiar to me, can anyone ID them? Doug

What are the differences between the DEC RP11-C and RP11-E controllers?

Hi list, the subject sais it all: While seeking for information on the RP11-C on the web (I saved a RP03 from being scrapped 3 years ago), I came across a hint, that there was also a RP11-E controller. At least using google, there is practically not a single information/document on the RP11-E o

RE: 1990 Era computer room

I saw this newpaper photo on ebay, item 191606970872, where these 2 big wigs are proudly standing in front of their computer system looking over some printout. The actual computers in the picture don't look familiar to me, can anyone ID them? The disc drives appear to be HP 7900A driv

Re: What are the differences between the DEC RP11-C and RP11-E controllers?

> On Jun 22, 2015, at 4:24 PM, P Gebhardt wrote: > > Hi list, > > the subject sais it all: While seeking for information on the RP11-C on the > web (I saved a RP03 from being scrapped 3 years ago), I came across a hint, > that there was also a RP11-E controller. At least using google, there i

Re: 1990 Era computer room

On 6/22/2015 9:16 AM, Douglas Taylor wrote: I saw this newpaper photo on ebay, item 191606970872, where these 2 big wigs are proudly standing in front of their computer system looking over some printout. The actual computers in the picture don't look familiar to me, can anyone ID them? Do

Re: 6 historic tech items that were rescued from the trash

One day my girlfriend came home and told me she'd seen some people dumping what looked like circuit boards into a dumpster just a few blocks from our apartment. We took a drive over and there are at least a dozen ADM-3/a logic boards. Best yet: *all the chips were socketed*. And when I acquired

Re: What are the differences between the DEC RP11-C and RP11-E controllers?

The RP11-E is a newer, but about same size, than the RP11-C. I don't remember the differences, but i went to Chicago and was trained on both in the late 70's. I have a few cabinets of documentation to sort through and I might have some in there. Al, do you want to scan it if you don't have it and

Re: What are the differences between the DEC RP11-C and RP11-E controllers?

I have an RP11. In my copious free time I'll see what flavor it is. It'll be at least a month though, I'm just leaving on a big vacation! :-) - remind me then! Mike On Tue, Jun 23, 2015 at 8:39 AM, Paul Koning wrote: > >> On Jun 22, 2015, at 4:24 PM, P Gebhardt wrote: >> >> Hi list, >> >> the s

Re: 1990 Era computer room

It looks like three dual systems with processors sharing common storage. Tandem? or other robust ysytem Rod On 22/06/2015 21:39, Jay West wrote: I saw this newpaper photo on ebay, item 191606970872, where these 2 big wigs are proudly standing in front of their computer system looking ov

Re: What are the differences between the DEC RP11-C and RP11-E controllers?

The Edited Option / Module List 21-APR-83 Page 620, 621 says: RP11 CONTROL FOR 8 RP02 OR RP03 RP11-CA CONT,CAB FOR 8 RP03-AS (20M 16BIT WORDS) 120V RP11-CB CONT,CAB FOR 8 PR03-BS (20M 16BIT WORDS) 240V RP11-E RPR02 CONTROL RP11-EARPR02 & RP03 CONTROL & H950 CAB,120V RP11-EB

Re: 6 historic tech items that were rescued from the trash

A few of us were standing about talking in the hallway between our radio museum and the ham club, and I happened to notice a small module of PCBs in the trash bin. Unable to resist finding out what it was (or more accurately: what it once had been) I reached in and pulled it out. Turned out it

Re: 1990 Era computer room

On 2015-Jun-22, at 2:19 PM, Rod Smallwood wrote: > On 22/06/2015 21:39, Jay West wrote: >> On 2015-Jun-22, at 9:16 AM, Douglas Taylor wrote: >> I saw this newpaper photo on ebay, item 191606970872, where these 2 big wigs >> are proudly standing in front of their computer system looking over some

Re: George!

Great save! By the Way Evan I like the photo of that self contained Syston Donner Analogue computer in your book! Ed# _www.smecc.org_ (http://www.smecc.org) In a message dated 6/22/2015 1:01:29 P.M. US Mountain Standard Time, e...@snarc.net writes: Here's a new picture of "

M68K Prog Ref Man (4th Ed)

I have a spare copy of this if anyone wants it (1984 edition). Noel

RE: 1990 Era computer room

The drives appear similar to those on the HP 3000. Could it be an OEM process control version? http://www.hpmuseum.net/images/3000_1972-35.jpg Steve. Original Message Subject: RE: 1990 Era computer room From:"Jay West" Date:Tue,

Re: 1990 Era computer room

On 06/22/2015 04:19 PM, Rod Smallwood wrote: It looks like three dual systems with processors sharing common storage. Tandem? or other robust ysytem That AIN'T tandem, I'm sure. A couple good friends worked for Tandem from very near the beginning, so I know what a Non-stop I looks like. H

Re: HP 2113e Battery resistor

On Monday, June 22, 2015 at 11:44, Marc Verdiell wrote: > Now if I can find similar cells I will be able to reconstruct the pack > inside the same shell. Ni-Cds are still available from Allied Electronics, Mouser Electronics, and others, although they are declining in availability compared to a

Re: 1990 Era computer room

> On 22 Jun 2015, at 19:14, Jon Elson wrote: > > Also, it is clearly NOT 1990 era, probably much closer to mid-1970's. The > cartridge disk drives look a little like double-decker Diablos, with the > packs in racks on top of the cabinets. The CPUs remind me of TI machines, > but these would

Re: X11 expertise on ancient HW sought... (4-plane visual (overlay) via X-server on MS-WIndows)

On Sat, 6 Jun 2015, IMAP List Administration wrote: > Depending on the cost, hacking the X-Server might be an option. > I have presented MS-Windows as a given here, but in fact I could also use > Linux. > Do any possibilities involving Linux occur to you? What kind of use do you require here fo

organizing a trip to Cuba

http://millennialmainframer.com/2014/12/ibm-still-waiting-cuba-pay-mainframes/ Who's up for it? B

Re: organizing a trip to Cuba

ROAD TRIP! On Mon, Jun 22, 2015 at 2:06 PM, william degnan wrote: > > http://millennialmainframer.com/2014/12/ibm-still-waiting-cuba-pay-mainframes/ > > Who's up for it? > > B > -- Ian S. King, MSIS, MSCS, Ph.D. Candidate The Information School Archivist, Voices From

Re: 1990 Era computer room

You're sure this is a picture from 1990? Looks older. On Mon, Jun 22, 2015 at 5:19 PM, Rod Smallwood < rodsmallwoo...@btinternet.com> wrote: > > It looks like three dual systems with processors sharing common storage. > Tandem? or other robust ysytem > > Rod > > > On 22/06/2015 21:39, Jay West w

Re: 1990 Era computer room

On 06/22/2015 09:43 PM, Christian Kennedy wrote: I think the hint is on the back. This is a story of Delaine Donohue retiring from D&B where he created and ran the National Business Information Center and the Central Data Collection Group between the early 70s and early 80s. He retired in ’89,