Re: RL02 packs available [Was: Re: Are DEC TK50/TK70 tapes worth hanging onto?]

> On Oct 19, 2016, at 11:38 PM, Pontus Pihlgren wrote: > > On Wed, Oct 19, 2016 at 05:51:06PM -0700, Mark J. Blair wrote: >> >> I’m especially interested in accumulating good RL02 packs. I’m even >> working on a project to add a USB interface to one of my RL02 drives >>

Re: RL02 packs available [Was: Re: Are DEC TK50/TK70 tapes worth hanging onto?]

On Thu, Oct 20, 2016 at 12:04:40AM -0700, Mark J. Blair wrote: > > I have a small pile of packs, some of which look unused. I keep my > eyes open for more, since I don’t know it I have more than I need yet. > :) > > Do any of your extra RL02 packs have potentially interesting contents, > such

Re: Unsticking a Seagate ST-419 head

I actually years ago unstuck drives by removing them, hooking them to cables long enough to allow me to have access to them external to the system with power, and just holding them in the air and giving them a sharp twist around the axis of the drive. That was enough to unstick most. I also

Re: Museum thoughts?

I run the Personal Computer Museum PCMuseum.ca in Canada and have done so for over 11 years. Happy to talk to you about anything in regards to it directly. Sent from my iPhone > On Oct 19, 2016, at 10:41 PM, Mouse wrote: > > There's someone local who's seen my

Re: Unsticking a Seagate ST-419 head

The two disks this morning went much better. I tried using a heat gun on the outside of the hda and VERY gently freed the heads and got the spindle to turn. Then I pulled the top board and coaxed the spindle motor back up to speed. The root disk read without errors, usr has a consistent 28. The

Re: 1966-68 Honeywell u-COMP DDP-516 Console

On 10/15/2016 03:00 AM, jim stephens wrote: The two empty slots may be for connector cards for the cabling from the panel into the system? Yes, they are for the cables. -- Dipl.-Inf. (FH) Philipp Hachtmann Buchdruck, Bleisatz, Spezialitäten Alemannstr. 21, D-30165 Hannover Tel.

Re: RL02 packs available [Was: Re: Are DEC TK50/TK70 tapes worth hanging onto?]

> On Oct 20, 2016, at 00:09, Pontus Pihlgren wrote: > > My packs come from a PDP-11/34 system. So there are some XXDP and RT-11 > packs. I look to image them before I ship them off. I have an XXDP 2.5 pack, but I don't think I have any with RT-11 on them. One or two

Re: Unsticking a Seagate ST-419 head

I've got several ST251-1s that spin up just fine, no funny noises, but then do a bunch of back-and-forth seeks and shut down again. It's the usual, "they worked fine the last time;" any ideas what the problem is and if there's anything that can be done? Presumably it's having trouble finding

WD1793 FDC versions

Anybody know what the differences are among the WD1793, WD1793A, WD1793B-02 etc., or where I could find this info? Thanks, mike

Re: Photos from the NWA Auction

According to this article, it sounds like the facility was closed in 2012. http://www.twincities.com/2016/10/07/remnants-of-northwest-airlines-pilot-training-center-up-for-grabs/ Whether or not all the computers were still in use at that time is tough to say, but I was surprised at how clean and

Re: Reasonable price for a complete SOL-20 system?

Does that archive on classiccmp.org have the infected images removed or cleaned? (Just curious as I remember this came up in a couple other forums that I think one or two of the images did have a virus). On Wed, Oct 19, 2016 at 11:17 AM, James Attfield wrote: > > From:

Re: Reasonable price for a complete SOL-20 system?

> From: "Mike Stein" > Subject: Re: Reasonable price for a complete SOL-20 system? > Message-ID: > Content-Type: text/plain; charset="iso-8859-1" > > > Any chance you still have a copy of that CP/M port buried somewhere? > We're

Re: Looking for HP98034 / HP9895 ROM images

If you have not gotten the HP 98034 ROM image yet, I can try to dump mine when I'm back from travel next week. I suspect you want the "revised" version, which is the interface that works with the HP 9895. I have both versions. Craig, I'd be interested in your 9895 ROM dump and reverse

Re: Unibus disk controller with modern storage

> On Oct 20, 2016, at 4:14 PM, Ethan Dicks wrote: > > On Wed, Oct 19, 2016 at 7:46 PM, Paul Koning wrote: >> Actually, Unibus has very straightforward timing. It certainly should be a >> breeze with an FPGA, but the original designs (nicely

Re: Unibus disk controller with modern storage

> From: Paul Koning > I'd suggest the Massbus series, they are just about as simple as > anything and that's where you find the largest capacities short of MSCP > devices. If you want to exactly emulate only DEC controllers, yes. (Of course, such a project should do that, for

Re: Photos from the NWA Auction

On Thu, 20 Oct 2016, et...@757.org wrote: According to this article, it sounds like the facility was closed in 2012. http://www.twincities.com/2016/10/07/remnants-of-northwest-airlines-pilot-training-center-up-for-grabs/ Whether or not all the computers were still in use at that time is tough

ST-251 [was Re: Unsticking a Seagate ST-419 head]

On 10/20/16 1:25 PM, Jason Howe wrote: > I'm actually trying to bring an ST251-1 back to life right now. It worked, > then was intermitently not recongnized by > the controller after being powered on for a while, now not recognized at all. > When you apply power it runs through > whatever

Re: Unibus disk controller with modern storage

On 10/20/2016 04:27 PM, Paul Koning wrote: > I would treat this as an analog problem, putting some op amps and comparators > to work. It doesn't seem to rise to the level where D/A devices are needed. > :-) Clearly op amps and comparators could do the job, probably really nicely, but it

Re: Unibus disk controller with modern storage

> On Oct 20, 2016, at 4:27 PM, Noel Chiappa wrote: > >> From: Paul Koning > >> I'd suggest the Massbus series, they are just about as simple as >> anything and that's where you find the largest capacities short of MSCP >> devices. > > If you want to exactly emulate

Re: Unibus disk controller with modern storage

On 10/19/2016 07:23 PM, Eric Smith wrote: I prefer NOT to use ENIG, as I find HASL tin-lead better for hand assembly, though the lead is a problem due to RoHS regulations in much of the world (but not in USA). I haven't tried HASL lead-free. I did **ONE** board with some kind of gold flash

Re: Unibus disk controller with modern storage

> From: Paul Koning > That's fine if your target is an OS for which you can write drivers. It > wouldn't help RSTS users. Right, they're stuck with exact clones of DEC controllers. (For Unix, tweaking the RP11 driver to handle the extended RP11 should take all of 12 minutes, tops!

Re: Unibus disk controller with modern storage

On Thu, Oct 20, 2016 at 05:32:07PM -0400, Noel Chiappa wrote: > For Unix, tweaking the RP11 driver to handle the extended RP11 should > take all of 12 minutes, tops! :-) well played. mcl

Re: Unibus disk controller with modern storage

On Thu, Oct 20, 2016 at 4:31 PM, Paul Koning wrote: > Q22 disks existed on MSCP, of course. And RL02 also, if I remember right. There is the 2 board RLV11, which is 18-bit, and the preferred 22-bit single-board RLV12. I have both. I started with a BA11-N box in 1986

Re: Unsticking a Seagate ST-419 head

On Thu, 20 Oct 2016, william degnan wrote: On Thu, Oct 20, 2016 at 4:25 PM, Jason Howe wrote: On Thu, 20 Oct 2016, Mike Stein wrote: I've got several ST251-1s that spin up just fine, no funny noises, but then do a bunch of back-and-forth seeks and shut down again.

Re: Are DEC TK50/TK70 tapes worth hanging onto?

Hi, I search some time for TK50/TK70 media for my MVII, and 3600 so I'm Interested. By now I have the need for the following tapes, if you have them. biggest need>>> - MVII DIAG MAINT TK50 >>> - MVII DIAG CUST TK50 - VMS V5.5-1 BIN TK50 - VMX XYZ BIN TK50 xx/nn - VMS LIC KEY

Re: Unibus disk controller with modern storage

On Oct 19, 2016 6:48 PM, "shad" wrote Hello, I read several posts about Unibus disk interfaces and emulation. One of my retrocomputing dream is to design an Unibus universal board, probably based on FPGA because of precise timing requirements, to emulate one or more

Re: Unibus disk controller with modern storage

On 2016-10-19 6:48 PM, shad wrote: Hello, I read several posts about Unibus disk interfaces and emulation. One of my retrocomputing dream is to design an Unibus universal board, probably based on FPGA because of precise timing requirements, to emulate one or more disk/tape interfaces, and

Re: Unibus disk controller with modern storage

On Wed, Oct 19, 2016 at 4:48 PM, shad wrote: > The board itself wouldn't be cheap at all, because PCB would be big, > True. From a Chinese vendor such as PCBway, a DEC quad size double-sided PCB without ENIG (immersion) gold surface finish but without hard-gold edge

Re: Unibus disk controller with modern storage

> On Oct 19, 2016, at 6:48 PM, shad wrote: > > Hello, > I read several posts about Unibus disk interfaces and emulation. > One of my retrocomputing dream is to design an Unibus universal board, > probably based on FPGA because of precise timing requirements, > to emulate

Re: Unibus disk controller with modern storage

On Thu, Oct 20, 2016 at 12:48:18AM +0200, shad wrote: > > From what I understand, there could be a great demand of a such interface > here around? > I think so yes, not everyone is so lucky as to have massbus or SDI disks lying arround. Loose CPU boxes seems far more common. /P

VCF East: March 31-April 2, 2017

Only five and a half months until VCF East XII. :) March 31-April 2, InfoAge Science Center, Wall, New Jersey. http://vcfed.org/wp/festivals/vintage-computer-festival-east/

Re: Unsticking a Seagate ST-419 head

On Thu, 20 Oct 2016, Mike Stein wrote: I've got several ST251-1s that spin up just fine, no funny noises, but then do a bunch of back-and-forth seeks and shut down again. It's the usual, "they worked fine the last time;" any ideas what the problem is and if there's anything that can be

Re: Old versions of Emacs

Warner Losh wrote: > Any chance you can share your archive? Oh, sure! For now, my most ethical repository is this: https://gitlab.com/larsbrinkhoff/emacs-history But I'd be happy to mirror it on savannah. > I went looking for emacs 17 years ago and couldn't find it... Turns out 4.3BSD had a

Re: FS (cost of shipping): AS/400 8-port twinax concentrator/adapter cables

Hello, Is the AS-400 stuff still avalable?I would be interested. Thank you On Tue, Oct 18, 2016 at 11:34 AM, J wrote: > I have two IBM 21F5093 AS/400 8-port twinax to DB25 adapters with clip > mounts. > > Looks like the coil is about 14-16 feet of cable. > > Pics on

RE: Photos from the NWA Auction

Original Message Subject: Re: Photos from the NWA Auction From: ethan I would figure the data center rooms and stuff might of had other racks of more modern server equipment that might have been sold off separately or relocated to other sites. Didn't see holes in the floor

Unibus disk controller with modern storage

Hello, I read several posts about Unibus disk interfaces and emulation. One of my retrocomputing dream is to design an Unibus universal board, probably based on FPGA because of precise timing requirements, to emulate one or more disk/tape interfaces, and possibly something more. The real storage

RE: Photos from the NWA Auction

Original Message Subject: Re: Photos from the NWA Auction From: et...@757.org Date: Tue, October 18, 2016 6:47 pm To: "General Discussion: On-Topic and Off-Topic Posts" > Wonder if anyone got the actual simulators/cockpits? Fun toys but > won't fit in

Re: Unibus disk controller with modern storage

> > >> From what I understand, there could be a great demand of a such >> interface here around? >> > > Been thinking about this for more than 10 years :-( > > Isn't Noel working on something related? > > Btw, MSCP isn't really as complex as its reputation... While I'm not an > expert, the hard

Re: Unibus disk controller with modern storage

OH yah Bill Degnan twitter: billdeg vintagecomputer.net On Oct 19, 2016 6:48 PM, "shad" wrote: > Hello, > I read several posts about Unibus disk interfaces and emulation. > One of my retrocomputing dream is to design an Unibus universal board, > probably based on FPGA

Re: Unibus disk controller with modern storage

On Wed, Oct 19, 2016 at 7:46 PM, Paul Koning wrote: > Actually, Unibus has very straightforward timing. It certainly should be a > breeze with an FPGA, but the original designs (nicely spelled out in the back > of the early Peripherals Handbooks, or later on in the

Re: Stanford Computers

I read something in THE NeXT Best Thing book about Stanford col.. actually making some? or they were in on a design of some book not handy now and my memory may also be flawed on this issue... Ed# In a message dated 10/20/2016 11:18:19 A.M. US Mountain Standard Tim,

Stanford Computers

Does anyone on this list have any information on Stanford Computers? I have 2 of them that I saved from being recycled many years ago. I have finally gotten around to looking at them more closely. I have a model “640” and a model “XT-10”. The 640 has 2 – 5 ¼” floppy drives plus a Conner

Old versions of Emacs

Hello, I'm looking for old versions of Emacs. I want to preserve them for the future. By "old", I mean roughly released before 1990. Or before GNU Emacs 19.7. I'm interested in having the most complete set of GNU Emacs release there can be. Tarballs are great, but diffs are also good. These

Re: Unibus disk controller with modern storage

On 10/19/2016 06:48 PM, shad wrote: > > One of my retrocomputing dream is to design an Unibus universal board, > probably based on FPGA because of precise timing requirements, > to emulate one or more disk/tape interfaces, and possibly something more. > The real storage could be based on SD

Re: Museum thoughts?

> > > > > There's someone local who's seen my assortment of computer hardware > > twice and has, each time, told me I should set up a museum. > > > > > So, I'm wondering if there's anyone who'd be willing to share > > experiences, thoughts, issues, whatever, on the possibility. > > > > Maybe you

Re: RL02 packs available [Was: Re: Are DEC TK50/TK70 tapes worth hanging onto?]

Hello, I would be interested in a few RL-02 packs with DDXP or RT-11 on them. Any idea what you would want for them? Matt On Thu, Oct 20, 2016 at 1:38 AM, Pontus Pihlgren wrote: > On Wed, Oct 19, 2016 at 05:51:06PM -0700, Mark J. Blair wrote: > > > > I’m especially

Re: Unsticking a Seagate ST-419 head

On Thu, Oct 20, 2016 at 4:25 PM, Jason Howe wrote: > > > On Thu, 20 Oct 2016, Mike Stein wrote: > > I've got several ST251-1s that spin up just fine, no funny noises, but >> then do a bunch of back-and-forth seeks and shut down again. >> >> It's the usual, "they worked fine the

Re: Old versions of Emacs

On 10/20/2016 02:58 PM, Lars Brinkhoff wrote: > Turns out 4.3BSD had a copy! It goes back before then--I can remember using it on early BSD around 1983. I can look around, if you're really curious. --Chuck

Re: Reasonable price for a complete SOL-20 system?

On Wed, 19 Oct 2016, Sam O'nella wrote: Does that archive on classiccmp.org have the infected images removed or cleaned? (Just curious as I remember this came up in a couple other forums that I think one or two of the images did have a virus). an 8080/Z80 compatible CP/M virus??? Or are you

Re: Museum thoughts?

Nice display Bill! Sent from my Verizon, Samsung Galaxy smartphone Original message From: william degnan Date: 10/20/16 13:01 (GMT-07:00) To: "General Discussion: On-Topic and Off-Topic Posts" Subject: Re: Museum

Re: Fwd: Unibus disk controller with modern storage

> From: David Bridgham > the right threshold voltage to meet the receiver spec The UNIBUS spec says the 4 crucial receiver parameters are input thresholds (high and low), and the input currents (high and low); the crucial transmitter parameters are the output low voltage (at 50 mA sink),

Re: WD1793 FDC versions

On Oct 20, 2016 10:47 AM, "Mike Stein" wrote: > Anybody know what the differences are among the WD1793, WD1793A, WD1793B-02 etc., or where I could find this info? A and B are the package material. -00, or no numeric suffix, is the early version, which will not compare the

Re: Altair, IMSAI, SWTPC, etc. for sale in Philly

On Thu, Oct 20, 2016 at 4:28 PM, Sam O'nella wrote: > No idea why this ended up in my spam folder, but replying just to get it > one more look as-if it needed any help ;-) That's a common gmail / yahoo thing. Ended up in my gmail spam folder too. "Why is this message in

Re: Altair, IMSAI, SWTPC, etc. for sale in Philly

No idea why this ended up in my spam folder, but replying just to get it one more look as-if it needed any help ;-) I'm surprised he doesn't ebay it to be honest. The last sentence, is that Rick asking or you Steven asking? On Tue, Oct 18, 2016 at 3:44 AM, steven stengel

Re: Altair, IMSAI, SWTPC, etc. for sale in Philly

On Thu, Oct 20, 2016 at 4:34 PM, Glen Slick wrote: > > Good thing I'm not in Philadelphia to blow some money on that collection... > Word. I still want an IMSAI one of these days - but I wouldn't say no to an Altair if it dropped in my lap. But I just paid tuition... so

Re: Museum thoughts?

On 20/10/2016 21:01, william degnan wrote: Here is an example of what I am talking about, at the U of Delaware in the computer sci hall. I got some students to help set up. http://vintagecomputer.net/UofDelaware/UofDelaware_CM_TRS80-2.JPG Not quite a museum, but at the request of the

Re: Unibus disk controller with modern storage

On Fri, Oct 21, 2016 at 2:45 AM, David Bridgham wrote: > On 10/19/2016 06:48 PM, shad wrote: >> >> One of my retrocomputing dream is to design an Unibus universal board, >> probably based on FPGA because of precise timing requirements, >> to emulate one or more disk/tape

Re: Unibus disk controller with modern storage

> Oh that blinkenlights panel is excellent! All emulators should have > one! :-) Yeah, isn't that fun? Once I got it running, I just sat and watched it for about fifteen minutes while it ran our disk exercising program. And then I noticed a bug. It apparently wasn't causing a problem but the

Maslin archive "virus"? (Was: Reasonable price for a complete SOL-20 system?

On Wed, 19 Oct 2016, Sam O'nella wrote: Does that archive on classiccmp.org have the infected images removed or cleaned? (Just curious as I remember this came up in a couple other forums that I think one or two of the images did have a virus). an 8080/Z80 compatible CP/M virus??? Or are you

Re: Maslin archive "virus"? (Was: Reasonable price for a complete SOL-20 system?

Yes, I discovered the virus years ago. I thought I posted a cleaned version somewhere is not on my site somewhere. Bill Degnan twitter: billdeg vintagecomputer.net On Oct 20, 2016 8:17 PM, "Fred Cisin" wrote: > On Wed, 19 Oct 2016, Sam O'nella wrote: >> >>> Does that

Re: Museum thoughts?

On Oct 20, 2016 10:07 PM, "Pete Turnbull" wrote: > > On 20/10/2016 21:01, william degnan wrote: >> >> Here is an example of what I am talking about, at the U of Delaware in the >> computer sci hall. I got some students to help set up. >>

Re: Photos from the NWA Auction

On 10/20/2016 11:59 AM, et...@757.org wrote: According to this article, it sounds like the facility was closed in 2012. http://www.twincities.com/2016/10/07/remnants-of-northwest-airlines-pilot-training-center-up-for-grabs/ Whether or not all the computers were still in use at that time is

Re: Old versions of Emacs

Chuck Guzis wrote: > Lars Brinkhoff wrote: >> Turns out 4.3BSD had a copy! > It goes back before then--I can remember using it on early BSD around > 1983. I can look around, if you're really curious. I am! I looked in 4.2BSD, but didn't find any Emacs. Emacs in 1983 would have been Gosling