test-drb July 2009

test-drb@ccmp.vtda.org

181 participants
245 discussions

by healyzh＠aracnet.com

At 6:03 PM +0100 7/11/09, Robert Jarratt wrote: >So to run on a later version I really need to find a DELQA and ideally an >RD54, in that case I would happily try the move to 7.3, but may be limited >by memory. I hate to tell you this, but a MicroVAX/VAXstation 3100 or 4000 series is going to be cheaper to get, and would take 50-pin SCSI disks. The DELQA shouldn't be that much of a problem to get, the RD54 on the other hand is, and is what would likely cost. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com (primary) | OpenVMS Enthusiast | | MONK::HEALYZH (DECnet) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

15 years, 5 months

TCP/IP for VMS 5.4

by arcarlini＠iee.org

cctalk-bounces at classiccmp.org wrote: > > The reason I am running 5.4 is that I am running it on a > MicroVAX II with a DEQNA, and my understanding is that later > versions of VMS did not support the DEQNA, only the DELQA. This is true, for some value of "later". V5.4 sounds about right for the cutoff. > I also only have 7MB of working memory (total of 9MB but 2MB > are considered bad by VMS) so it may not work well with later > versions for lack of memory (not sure though). Are you sure that VMS sees it as bad? If it just doesn't see it at all, that could well be because you need to run AUTOGEN (and maybe ferret out and remove a possible parameter that is limiting the number of physical pages ]it might even be PHYSICALPAGES]). What does SHOW MEM say? Antonio

15 years, 5 months

Unknown Motorola IC "SC 440 00 L"

by thrashbarg＠kaput.homeunix.org

Hi, I've had this 40-pin IC for a while now. The only markings on it are (Motorola Logo) SC 440 00 L 7532 H The second one is obviously a date code. The regular Internet searches reveal nothing. It came off a small board with an MC6810 128-byte RAM. Anyone know what it is? Thanks, Alexis.

15 years, 5 months

Classic mac fun (and some questions)

by trag＠io.com

> (continued...again...) From: "Jeff Walther" <trag at io.com> To: cctech at classiccmp.org User-Agent: SquirrelMail/1.4.17 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal > Date: Thu, 9 Jul 2009 12:00:48 -0400 > From: Ethan Dicks <ethan.dicks at gmail.com> > I tried to look that up and found it easy to see that the IIfx needed > something odd (I couldn't find specifics), so well done there. It > would be interesting to get the details to see where Apple went off > the rails from the SCSI spec. IIRC, it's a matter of adding a capacitor and maybe a resistor to a regular terminator. There's an Apple Technical Note or similar available somewhere. I probably have a copy squirreled away on my hard drive at home. And I think I remember that they use a somewhat higher value capacitor (so add a smaller one in parallel on an existing terminator) and a lower resistance (so again, add a resistor in parallel). But I could be misremembering. Again, IIRC, the IIfx's SCSI was too noise sensitive. But I've also heard/read that that was only true for the early production run and that the later built machines did not need the funny terminator. >> Then I would only need to find an AUI to RJ-45 doodad >> which is skinny enough to fit into the recessed ports on the IIfx. I >> have an AUI thingy now, but it's too fat to reach the db-15 connector >> on the network card. > > http://lowendmac.com/ii/macintosh-iifx.html > > Are you sure that's an AUI connection? I would expect a Mac of that > vintage to have a DA-15 for video but not Ethernet. Seconded. There were NuBus AUI ethernet cards, but much more common would be a card with AUI and either or both of a BNC and RJ45. If the card only has a DA-15 there's a very good chance that it is a video card. If it has a big 'BT' labeled chip near the connector, it is almost certainly a video card. Jeff Walther

15 years, 5 months

TCP/IP for VMS 5.4

by robert.jarratt＠ntlworld.com

Does anyone know if there is a version of TCP/IP around that will install on VMS 5.4. I only have UCX from a 7.3 CD-ROM which I cannot install on 5.4 because it does not have the PRODUCT command. Thanks Rob

15 years, 5 months

1ESS call store buffer

by aek＠bitsavers.org

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180376993048 On the chance that the buyer reads this list, it is the call store buffer ferrite sheet memory from a 1ESS switch. Picture on page 2380 of the Bell System Technical Journal, Sep 1964 part 2.

15 years, 5 months

DEC H207 Core Memory Boards

by iamvirtual＠gmail.com

The PDP-11/20 that I have from 1970 has H207 core planes in the main cabinet. The H207 is part of the MM11E subsystem. Here are the boards in my PDP-11/20 cabinets: http://www.iamvirtual.ca/collection/systems/minis/PDP11-20/Boards.html The core plane should be documented in the "MM11-E Core Memory Manual" (see document DEC-11-HR3A-D). I have a copy of the manual if needed. --barrym On 7/10/09, Ethan Dicks <ethan.dicks at gmail.com> wrote: > On 7/10/09, Rick Bensene <rickb at bensene.com> wrote: >> Hello, all, >> >> I recently came into possession of four DEC H207 Core Memory boards. >> They consist of a quad-width board that has a large number of signal >> steering diodes, with an attached daughter board that has a 4K x 16 >> "Planar Memory" array made by Electronic Memories. The boards all have >> original DEC warranty seals on them, dated June of 1971. >> >> I'm curious as to what DEC machine may have used these boards, and what >> support Flip Chip modules (X & Y drive, Sense/Inhibit, and addressing >> logic) may have been used with the core stacks to provide a 4Kx16 memory >> subsystem. > > They sound like the right size and date for an 11/20. I have a few > (since I have the rescued bits of a cut-up 11/20) and can check what > you have against what I have. Can you send me a picture off-list? > I'll compare it with what I have, and I can confirm handle numbers for > the sense/inhibit and XY boards (they should be on a master module > list anyway - they were common in 1971). > > Unfortunately for me, I wasn't the only one from that company who got > some parts. I think I didn't manage to retrieve 100% of the core that > was in the three-cabinet 11/20. I am missing at least one core stack > that I know of. I was planning on a modern memory replacement if I > ever get this machine put back together (it was stripped and the PSUs > recycled before it hit the dumpster, and I saved the carcass and as > many boards as I could). My ultimate goal for this is to run first > RT-11 to check it out, then the early version of UNIX that was > recently demonstrated on simh (I still need to come up with an RF-11 > emulator; I think I have most of the rest of the hardware that's > required). > >> Give the 16-bit array size, I assume that it may have been used in a >> PDP-11, but I suppose (with four wasted bits) it could have been used in >> some form of PDP-8 system. > > Probably not. There are 4Kx12 planes for the PDP-8 (I don't know the > number off the top of my head) and it's not the same as what was used > in the PDP-11. Cores cost too much to "waste" 25% of them. > > -ethan

15 years, 5 months

Classic mac fun (and some questions) (continued...again...)

by dgahling＠hotmail.com

---------- Sent via Telus My Email 2.0 -----Original Message----- From: Brian Lanning Sent: 7/10/2009 3:39:27 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Classic mac fun (and some questions) (continued...again...) On Thu, Jul 9, 2009 at 10:27 PM, Boris Gimbarzevsky<borisg at unixg.ubc.ca> wrote: > Use BasiliskII to emulate a Mac under XP. The version that I've found works > best for me is at: > http://gwenole.beauchesne.info//en/projects/basilisk2 Thanks, I'll have a look. WinUAE (the amiga emulator) is great for installing and setting up an OS on a new hard drive prior to sticking it in a machine. > All you need is a copy of your Mac's ROM and an image of a HDD with a Mac > OS. Do I need any unicorn blood? ;-) brian

15 years, 5 months

VDU dripped red gunk - CRT delaminating?

by john_a_s2004＠hotmail.com

Hi, I was delving through my pile to get to a monitor, when I found to my horror a sticky pool of red gunk on the floor. It was underneath an old VDU (1982 Pericom 9800), when I took it apart it looked like it had leaked from between the CRT and the faceplate. It had hardened into a thick jelly, I couldn't clean it from inside the case without removing the CRT. My main worry was to clean the floor, the VDU was left inside a warm conservatory. Luckily we have vinyl tiles which cleaned up OK (else would have been a severe drop in WAF). I've read here about CRF delaminating, the CRT now has the tell-tale patterns around the edge, but I don't recall reading about any discharges (of the liquid kind). My other thought is to do with coil windings, but it seemed to be directly under the front of the CRT, not the rear. Any similar stories please? Regards, John _________________________________________________________________ MSN straight to your mobile - news, entertainment, videos and more. http://clk.atdmt.com/UKM/go/147991039/direct/01/

15 years, 5 months

Ebay: IBM 026 and 083, punch and sorter

by oldcpu＠rogerwilco.org

I know I don't have a warehouse-sized workroom to hold this kind of gear, so I'll pass. Still, it'd be sad to see these two items melted down and made into Ford truck bumpers or whatever. Someone in the upper Midwest might be up for saving some real 'iron' from the chopper. A bit pricey for the opening bids, but pretty interesting stuff, and claimed to be in working order. I haven't seen anything like this since a one-time adventure learning FORTRAN on an IBM 360 via card-fed batch jobs back in 1976. Collectible Vintage IBM 026 Card Punch Machine computer Item number: 260443687771 Vintage IBM 083 Card Sorter Item number: 260443687154

15 years, 5 months

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test-drb July 2009