Re: DEC M9312 Configs for a 11/40

I can take some pictures of the M9312 I have running in my 11/40 tonight if need be. The manual at http://bitsavers.informatik.uni-stuttgart.de/pdf/dec/unibus/M9312_TechRef.pdf (page A-2) suggests that W8 should be IN. Can you describe how your system is configured (i.e. what's on the bus,

Re: DEC M9312 Configs for a 11/40

On 11/28/16 7:11 AM, william degnan wrote: If you really want to make a bootable XXDP TU58 tape image, the instructions given by AK6DN here: http://www.vcfed.org/forum/showthread.php?42246-How-to-make- a-bootable-XXDP-file-for-TU58-emulator this is what I have been doing. And what

Re: DEC M9312 Configs for a 11/40

On 11/28/16 6:46 PM, william degnan wrote: Recently (today) I noticed Address light 16 would come on when I examine an address. For example All switches down, turn on machine (set to 000 000) RUN/PROC/BUS/CONSOLE lights come one, all other lights off hit LOAD ADDR address light 16 comes on,

Re: ISO: PDP-11/40 LTC and Stack Limit options

On 11/22/16 4:00 PM, Josh Dersch wrote: On 11/22/16 9:27 AM, Noel Chiappa wrote: > From: Josh Dersch derschjo at gmail.com > see if the same is true for other bus grants -- I can run the system > with no grant continuity card at all in slot 9 and everything work

Re: ISO: PDP-11/40 LTC and Stack Limit options

On 11/22/16 9:27 AM, Noel Chiappa wrote: > From: Josh Dersch derschjo at gmail.com > see if the same is true for other bus grants -- I can run the system > with no grant continuity card at all in slot 9 and everything works. Well, the BG4-BG7 grants definitely

Re: DEC M9312 Configs for a 11/40

On 11/27/16 4:28 PM, william degnan wrote: Follow up - I don't think I have issues with my M9312, thanks for your help. There are a number of candidate issues with my 11/40 which are causing my system to not be able to initiate a bootstrap of the TU58 ROM using the M9312, or bootstrap

Re: ISO: PDP-11/40 LTC and Stack Limit options

On 11/21/16 5:47 PM, Noel Chiappa wrote: > From: Josh Dersch > The 11/40 is mostly working ... but I've been unable to boot anything > (like XXDP, for example). What are you trying to boot from? I've tried an emulated TU58 and (most recently) a UNIBUS SCSI controller

TI 990/189 debugging

Hi all -- Got myself a TI-990/189 single-board computer based around the TMS9980 microprocessor (actually, a variant of it, the MP9529, which apparently differs only in that it has a lower maximum clock and only requires Vdd of 9.3V or so...) It was advertised as "it looks like it's

Re: Datamation, May 1972

On Thu, Nov 17, 2016 at 12:44 PM, Kyle Owen wrote: > On Thu, Nov 17, 2016 at 10:10 AM, Paul Koning > wrote: > > > > > Interesting. From around 1975 or so, and worth learning about is the > > music synthesizer developed on the PLATO system at the

Re: Some scrapper in NC has an old machine Labled TRIAD he is scrapping

Looks like a rebadged Interdata 7/32 (or similar) to me. Someone should try to rescue that; they're very rare... - Josh On 11/19/16 8:35 PM, TeoZ wrote: http://www.scrapmetalforum.com/general-electronics-recycling/30872-old-computer-peripherals-main-frame-etc-should-i.html --- This

Re: General TC11 DECtape diagnostic/formatter questions

On Wed, Nov 9, 2016 at 7:20 PM, Josh Dersch <dersc...@gmail.com> wrote: > On 11/9/16 6:18 PM, Paul Koning wrote: > > On Nov 9, 2016, at 5:57 PM, Josh Dersch <dersc...@gmail.com> wrote: >>> >>> ... >>> A quick update -- I ran the ZTCD diagnosti

ContrAlto V1.1 Released

Hi all -- Just wanted to let you guys know that a new version of the Xerox Alto emulator I've been working on at the LCM+L has been released; V1.1 of ContrAlto can be downloaded from: http://www.livingcomputers.org/Join/Online-Systems.aspx. At this point, the vast majority of software appears

RE: ContrAlto V1.1 Released

and/or stupidity on my part... - Josh > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Josh > Dersch > Sent: Friday, October 28, 2016 9:30 AM > To: General Discussion: On-Topic and Off-Topic Posts > <cctalk@classiccmp.org>

Re: Gaming on old systems (was Re: Twiggys [was: Re: ka... ching!])

On 10/11/16 9:06 AM, Charles Anthony wrote: On Tue, Oct 11, 2016 at 8:44 AM, william degnan wrote: DOS PC: Doom Last comment from me... I played SGI Doom the other day for the first time. There are always new discoveries, I did not even know this port existed.

Re: Gould 32/77 (was: NWA auctions)

On 10/13/16 9:14 AM, Al Kossow wrote: On 10/13/16 9:01 AM, Rick Bensene wrote: These are neat machines, and I hope that they end up in the hands of someone that can care for them rather than ending up scrap. hope ht was one of us :-) I ended up with the TI-980. The 11/45's got

Re: NWA auctions

On 10/13/16 1:37 PM, Noel Chiappa wrote: > From: Jim Stephens > The two bay 11/45 went for twice the bid, since it was listed as 2 pcs > @ 1500 each Yeah, I couldn't quite work that out - did it mean there were two mostly identical ones, and they only had pictures of one, or

Re: Gould 32/77 (was: NWA auctions)

On 10/13/16 8:34 PM, Bob Rosenbloom wrote: On 10/13/2016 9:01 AM, Rick Bensene wrote: I'm curious what the Systems 32/77 is.. Wasn't Gould SEL? maybe an SEL system? The 32/77-series was a 32-bit machine implemented in ECL, based on earlier SEL designs, but is definitely Gould in

Re: NWA auctions

On 10/13/16 12:11 AM, Pontus Pihlgren wrote: On Wed, Oct 12, 2016 at 09:13:19PM -0700, Al Kossow wrote: https://grafeauction.proxibid.com/asp/catalog.asp?aid=117590=288#288 someone needs to grab those 11/45's! What are those modern looking peripherals? Looks like storage, it might be the

Re: NWA auctions

On 10/12/16 9:13 PM, Al Kossow wrote: https://grafeauction.proxibid.com/asp/catalog.asp?aid=117590=288#288 someone needs to grab those 11/45's! Thanks for the tip! Against my better judgement I put in a bid on the one without the trim on the faceplate... - Josh

Re: NWA auctions

On 10/12/16 10:08 PM, jim stephens wrote: On 10/12/2016 9:37 PM, Josh Dersch wrote: On 10/12/16 9:13 PM, Al Kossow wrote: https://grafeauction.proxibid.com/asp/catalog.asp?aid=117590=288#288 someone needs to grab those 11/45's! Thanks for the tip! Against my better judgement I put

Re: MFM floppy and HD emulator DREM

On Mon, Oct 17, 2016 at 10:21 AM, Guy Sotomayor Jr wrote: > > > On Oct 17, 2016, at 9:58 AM, j...@cimmeri.com wrote: > > > > > > > > On 10/17/2016 11:18 AM, Peter Cetinski wrote: > >>> On Oct 17, 2016, at 11:58 AM, emanuel stiebler wrote: > >>> > >>> Hi all,

TI 980 software?

Hi all -- The TI 980B I got from that NWA auction from a month or so ago finally made its way back to my house, and the CPU looks to be in decent shape. I'll probably start working on restoring it after the new year. Bitsavers has ample documentation, but I haven't found much software at

Re: IBM XT 5160 Keyboard issues

On 12/17/16 9:14 PM, Devin wrote: I was happy to find a IBM XT for a good price at the scrapyard today in very nice condition. It is missing the hard drive, but i have plenty of those, the controller was still inside. I had a little issue getting video working at first, i do not have a 9

Re: What's the rarest or most unusual computer-related item do you own?

On 1/10/17 3:29 PM, Chuck Guzis wrote: On 01/10/2017 02:09 PM, Andy Cloud wrote: Hi Everyone! I thought this would be an interesting question to ask around - What's the rarest or most unusual computer-related item do you own? For me, personally, I have a Altair 8800! Looking forward to

Re: Winchester-style coax connectors?

On 12/2/16 8:29 AM, Jon Elson wrote: On 12/01/2016 01:27 PM, Josh Dersch wrote: but what I failed to notice is that three of the "pins" (for the X, Y and Blank signals) are actually tiny coaxial connectors that fit within the Winchester housing (i.e. they're the sam

Re: Winchester-style coax connectors?

On Thu, Dec 1, 2016 at 11:47 AM, Paul Koning <paulkon...@comcast.net> wrote: > > > On Dec 1, 2016, at 2:27 PM, Josh Dersch <dersc...@gmail.com> wrote: > > > > ... > > The Imlac uses a Winchester connector (14 position) for the display and > > while t

Winchester-style coax connectors?

Hey all -- Due to a small miracle I now have 8KW of perfectly functioning core in my long-ill Imlac PDS-1D. The last hurdle is devising a replacement for the missing display (an X/Y vector display). For the time being I'm going to attempt to use an oscilloscope, but first I need to build a

Fix for 4.3BSD-Quasijarus bootstrap on CMD SCSI controllers

Hi all -- Thought I'd share this fix with you all just in case someone in the future might make use of it. Long story short: Got myself a CMD 710/M UNIBUS SCSI controller with the intent to use it in my VAX-11/750, running 4.3BSD-Quasijarus. Unfortunately it won't boot (it hangs shortly

Re: was: National Semi... is Apple ][ collectability (if any)

On 1/3/17 12:09 AM, jim stephens wrote: On 1/2/2017 11:26 PM, Brad H wrote: I brought the RFI thing up with him. No response. There is a legit Rev 1 there too asking $3500. I don't find Apple IIs below Rev 0 that interesting anymore, personally. I think even the legit guy would

Re: Fix for 4.3BSD-Quasijarus bootstrap on CMD SCSI controllers

On 1/3/17 12:50 PM, David Brownlee wrote: On 3 January 2017 at 20:11, David Brownlee <a...@absd.org> wrote: On 3 January 2017 at 15:50, Noel Chiappa <j...@mercury.lcs.mit.edu> wrote: > From: Josh Dersch > Thought I'd share this fix with you all ju

Re: TI 990/189 debugging

Just to bring some closure to this old thread, I finally picked up a working TMS9980 cpu chip (after getting one faulty one off of eBay -- it was even more dead than the one it was replacing). And it appears to work properly in the 990/189 board, with the 9.3V supplied on the CPU socket. Thanks,

Re: National Semiconductor IMP mini

On 1/2/17 7:22 PM, jim stephens wrote: This system looks pretty interesting, though pricey. I'm thinking it is going to be a development machine as all the switches and display would not probably have been on a production machine. I don't think National made many minicomputer format

Re: National Semiconductor IMP mini

On 1/2/17 7:58 PM, Brad H wrote: Original message From: Josh Dersch <dersc...@gmail.com> Date: 2017-01-02 7:37 PM (GMT-08:00) To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk@classiccmp.org> Subject: Re: National Semiconductor IMP mini

ISO: RL02 cable

Hi all -- I'm in need of an RL02 cable (drive to drive). I picked up a second drive for my PDP-11/40 and I'd like to get it hooked up. Thanks as always, Josh

Re: Pair of Twiggys

On Wed, Mar 15, 2017 at 9:35 AM, Liam Proven via cctalk < cctalk@classiccmp.org> wrote: > On 15 March 2017 at 14:17, geneb via cctalk wrote: > > Well hooray for Xerox. Apple still obtained the concepts from Xerox, > > regardless of the mechanism. > > Only some and only

Re: Pair of Twiggys

On Wed, Mar 15, 2017 at 10:50 AM, Al Kossow via cctalk < cctalk@classiccmp.org> wrote: > > > On 3/15/17 10:40 AM, Josh Dersch via cctalk wrote: > > the Mac was designed by a number of ex-PARC > > researchers. > > Steve Capps was the only person on the origi

Re: IBM S/32, PDP-11/60+RL01, PDP-11/34, East Lansing MI

FWIW, the LCM+L inquired and heard back earlier this week, apparently the gear has been claimed. Hopefully that's true... - Josh On Fri, Mar 3, 2017 at 2:03 PM, Systems Glitch via cctalk < cctalk@classiccmp.org> wrote: > > Ditto for one of the people here who said they'd sent the person an

Re: DEC DW11 information?

On 3/2/17 10:26 PM, Josh Dersch wrote: On 2/27/17 10:02 PM, Tony Duell via cctalk wrote: >From memory it handles 18 bit addressing (not 22, of course), interrupts and NPR (DMA). The Unibus side (quad card) goes in any SPC slot, you have to remove the NPG jumper. It links with a pair of

PDP-11/34 rails?

Hi all -- I'm looking to rack up my PDP-11/34 so I can get it off my bench. I'd like to track down something similar to (if not exactly) the original rackmount rails (the ones that allow the chassis to pivot 90 degrees so you can deal with the backplane easily), but I'm not sure what the

Re: Able board on eBay

I looked it up a couple of days ago. It's in a brochure on Bitsavers: http://www.mirrorservice.org/sites/www.bitsavers.org/pdf/able/brochures/Able_Computer_Product_Brochures_1982.pdf See page 12. It's one part of a DMAX/16. The same seller had the other half for sale as well (mislabeled).

Re: DEC DW11 information?

On 2/27/17 10:02 PM, Tony Duell via cctalk wrote: On Tue, Feb 28, 2017 at 4:32 AM, Josh Dersch <dersc...@gmail.com> wrote: Hi all - Anyone have any technical information (manuals, schematics, etc.) for the DEC DW11 UNIBUS->QBus interface? I'm curious to know what it's capable of I

Looking for PDP-8 G603 "Memory Selector Matrix" boards (or dec T-2052 transformers)

Hi all -- I recently got insanely lucky and scored a Straight-8 (S/N 14). It made it in nearly one piece from Ohio, but during transit, all of the G603 Memory Selector Matrix boards fell out. It looks like on early revisions, there was no bar in place to hold the boards in (or someone removed

Re: 2.11BSD on two RL02 drives? Probably not, but...

On Wed, Aug 2, 2017 at 2:14 PM, Aaron Jackson via cctalk < cctalk@classiccmp.org> wrote: > >> On Aug 2, 2017, at 11:32 AM, Aaron Jackson via cctech < > cct...@classiccmp.org> wrote: > >> > >> Hi all, > >> > >> I will soon be getting a PDP-11/73 with 1MB of RAM, an RLV12 and DEQNA > >>

Re: RX8 M8357 Device address.

On Wed, Aug 9, 2017 at 8:00 AM, Rod Smallwood via cctalk < cctalk@classiccmp.org> wrote: > Hi Lis > > It looks like RX8 SEL is not asserted due to the device address not being > set up on the DIP switches. > > Anybody know what they should be set to in terms of switch number, > depressed/not

TRS-80 Model 16 hard drive replacement woes

Hi all -- Against my better judgement I picked up a TRS-80 Model 16 last week. Initially it wasn't working at all, after replacing the Z80 CPU and CTC chips and doing a pretty thorough cleaning of the drives it seems to be happy. It came with a 15 meg disk system which isn't faring so well

Re: TRS-80 Model 16 hard drive replacement woes

On 8/12/2017 8:45 PM, Fred Cisin via cctalk wrote: On Sat, 12 Aug 2017, Josh Dersch via cctalk wrote: However, I'm unable to format it. The controller doesn't appear to actually be laying down a format and attempts to read sectors after formatting fail with "ID Not Found" errors.

Re: HP 300-series boot rom archive?

therwise standard troubleshooting tasks for switch > mode power supplies would apply.. http://www.repairfaq.org/sam/ > smpsfaq.htm#smpssctos > > David Collins > HP Computer Museum > > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf O

HP 300-series boot rom archive?

Hi all -- I picked up a small lot of HP 300 gear yesterday and I'm working on getting them going. In particular, I have a 9000/350 that I'd like to use but it has what appears to be a very early boot ROM (dated 7/9/87, version A2) and it doesn't recognize the 98658 SCSI controller I'd like

Re: HP 300-series boot rom archive?

On 7/16/2017 8:12 PM, Glen Slick via cctalk wrote: On Sun, Jul 16, 2017 at 7:50 PM, Josh Dersch via cctalk <cctalk@classiccmp.org> wrote: Is there an archive of ROM images for the 300 series anywhere? You probably already found these. Unfortunately the 350 is missing from the set. Th

Re: HP 300-series boot rom archive?

On 7/18/2017 10:29 PM, r.stricklin via cctalk wrote: On Jul 18, 2017, at 8:38 AM, Al Kossow via cctech wrote: When MAME started supporting the 68K 9000s, I made an effort to go through all of my machines and dump the firmware. I didn't have a 375, which is why it isn't there. It would be

Re: HP 300-series boot rom archive?

On 7/19/2017 10:43 AM, Peter Brown via cctalk wrote: If yours is dead, a bad power supply is the most likely issue. The same power supply was used in the 9000/340 but the 340's service manual doesn’t tell you much about the internals of the supply. The 345 service manual tells you more but

Re: Help identifying UNIBUS PDP-11 CPU upgrade

On Wed, Jun 28, 2017 at 11:02 AM, Noel Chiappa via cctalk < cctalk@classiccmp.org> wrote: > > From: Josh Dersch > > > I pulled the ... bootstrap boards from slot 3 ... The BOOT button > > causes the RUN light to momentarily flash, but that's about it. &g

Re: Help identifying UNIBUS PDP-11 CPU upgrade

On 6/30/2017 7:30 AM, Noel Chiappa via cctalk wrote: > From: Josh Dersch >> Now I'm confused. There is no cable from the front panel to the CPU in >> a standard 11/34? (There's one from the front panel to the backplane; >> another from the fro

Re: Help identifying UNIBUS PDP-11 CPU upgrade

On 7/1/2017 8:59 AM, Noel Chiappa via cctalk wrote: > From: Jerry Weiss > So it would appear the upgrade board makes provisions for both > situations. I'm not sure that the two situations that the upgrade board supports are in fact different, from its point of view. (Assuming

Informer D304 terminal docs, etc?

Hi all -- I picked up an Informer D304 terminal at VCF West because it was cute and cheap. You can see a picture of this beast on page 3 of: http://chiclassiccomp.org/docs/content/computing/Informer/Informer_401TerminalBrochure.pdf I haven't found any real documentation for this terminal,

Re: Informer D304 terminal docs, etc?

On 8/8/2017 3:50 PM, Glen Slick via cctalk wrote: On Aug 8, 2017 3:42 PM, "Josh Dersch via cctalk" <cctalk@classiccmp.org> wrote: Hi all -- I picked up an Informer D304 terminal at VCF West because it was cute and cheap. You can see a picture of this beast on page 3 of:

Re: RX8 M8357 Device address.

On Wed, Aug 9, 2017 at 9:16 AM, Al Kossow via cctalk <cctalk@classiccmp.org> wrote: > > > On 8/9/17 8:32 AM, Josh Dersch via cctalk wrote: > > On Wed, Aug 9, 2017 at 8:00 AM, Rod Smallwood via cctalk < > > cctalk@classiccmp.org> wrote: > > >

Re: pdp-8/e restoration.

On 8/7/2017 3:50 PM, Rod Smallwood via cctalk wrote: On 07/08/2017 22:52, Ian S. King via cctalk wrote: On Mon, Aug 7, 2017 at 2:40 PM, Pete Turnbull via cctalk < cctalk@classiccmp.org> wrote: On 07/08/2017 18:37, Rod Smallwood via cctalk wrote: So to-morrow connect up a terminal that

Re: Booting OS/8

On 8/8/2017 6:40 AM, Rod Smallwood via cctalk wrote: OK RX8 is in the pdp-8/e connected to the RX01. OS/8 floppy in drive. All I need is the toggle in bootstrap and you never know. It's the first hit on google for "RX01 bootstrap." http://www.pdp8.net/interface/rx01_boot.shtml - Josh

Help identifying UNIBUS PDP-11 CPU upgrade

Hi all -- Snagged an interesting boardset off eBay last week; it was listed as a PDP-11/34 CPU upgrade with no other details. The set consists of two hex-height unibus boards -- the CPU board has a J-11 processor on it, the memory board contains 4mb of memory, and there's an interconnect

Re: FTGH clear-out at Mesa Electronics, Richmond, CA, USA

On Wed, May 24, 2017 at 9:30 AM, Steven M Jones via cctalk < cctalk@classiccmp.org> wrote: > On 05/24/2017 02:16, Pontus Pihlgren wrote: > > > > I'm surprised to see a swedish keyboard there :) > > And I thought it was important to include that keyboard, because > somebody somewhere must be in a

Re: Ebay - PDP-8/M

That is correct, this is my auction. If anyone has any questions, drop me a line! - Josh On 5/26/17 3:35 PM, Ian Finder via cctalk wrote: I think he may have already picked it up. I believe he is trying to un-pick it up using eBay. On Fri, May 26, 2017 at 3:08 PM, Glen Slick via cctalk <

Random musing: VCB02 on VAX-11/750

So I had a random thought in the wee hours this morning and I leave it to you, the cctalk braintrust, to tell me exactly how stupid this idea is: I have a VAX-11/750, an Able QNiverter (UNIBUS->Qbus adapter), a 22-bit Qbus backplane, and a VCB02 (QDSS) 4-bit graphics boardset. Theory: With

Re: HP 9836 systems and Fuji Pictrography 4000 printer available

On 5/27/17 1:51 PM, Bob Rosenbloom via cctalk wrote: I looked at the three machines. Two are monochrome and the third has a sticker saying it's been upgraded to an 9836C so that's the one for the color monitor. Unfortunately, it looks like no one is interested in them so they might get

Re: HP 9836 systems and Fuji Pictrography 4000 printer available

On 5/27/17 5:04 PM, Bob Rosenbloom via cctalk wrote: On 5/27/2017 3:26 PM, Josh Dersch via cctalk wrote: On 5/27/17 1:51 PM, Bob Rosenbloom via cctalk wrote: I looked at the three machines. Two are monochrome and the third has a sticker saying it's been upgraded to an 9836C so that's

Re: Help identifying UNIBUS PDP-11 CPU upgrade

would be nice to find a manual. At any rate, I've successfully booted 2.11BSD on the upgraded 11/34, and it seems to work well. If anyone out there knows more about this boardset, let me know... Thanks, Josh On Mon, Jun 26, 2017 at 10:58 PM, Josh Dersch <dersc...@gmail.com> wrote: >

Owens Illinois Digivue technical info

Hi all -- I find myself with an Owens Illinois Digivue plasma display, model designation MDXVI.  This appears to be a later model than the ones used in the PLATO IV and V terminals and I can't find any real information on it.  This one has two D-sub connectors on the rear -- a 15-pin for the

HP-UX 5.1 for the 9836U?

Hi all -- Anyone have media for the 9836U version of HP-UX 5.1?  The copy on hpmuseum.net (http://www.hpmuseum.net/display_item.php?sw=581) only works on the 9000/310 and I haven't found much of anything anywhere else. Thanks as always, Josh

Re: Why women were the first computer programmers

On Thu, Aug 24, 2017 at 3:11 PM, Jay West via cctalk wrote: > Several wrote... > > > You may feel free to remove me from this list. > And > > Likewise. > And > > That's it for me and this list. > > I did not say sexism was ok. Those that are reading that in to it - please

Re: Why women were the first computer programmers

On Thu, Aug 24, 2017 at 2:12 PM, Jay West via cctalk wrote: > > It was written... > --- > That's crude, ignorant, sexist, and wrong. > --- > > The above statement sounds to me as being intolerant, hatespeech, and > judgemental. Why do you

Re: Why women were the first computer programmers

On 8/23/2017 9:14 PM, Rod Smallwood via cctalk wrote: On 24/08/2017 04:10, Brian Walenz via cctalk wrote: On Wed, Aug 23, 2017 at 8:59 PM, Al Kossow via cctalk

Interdata 70 front panel keys

Hi all -- Got an Interdata Model 70 here (well, the parts to build one, anyway) missing the front panel key.  Anyone (a) got a few spares lying around or (b) have key codes for this thing? Thanks, Josh

Re: DEC indicator panel mounting details

On Tue, Dec 19, 2017 at 2:15 PM, Al Kossow via cctalk wrote: > > > On 12/19/17 10:49 AM, Noel Chiappa via cctalk wrote: > > > Could someone who has one please take a look and let us know (or, even > better, > > send us photos)? > > > If someone can't get to mounted ones,

Re: MicroVAX I Diagnostic floppies

Well, that figures. Found them here, for future reference: https://www.headcrashers.org/comp/rx50/index.html - Josh On Tue, Dec 19, 2017 at 10:50 AM, Josh Dersch <dersc...@gmail.com> wrote: > Hi all -- > > I'm attempting to resurrect a MicroVAX I (because it's there, that's why

MicroVAX I Diagnostic floppies

Hi all -- I'm attempting to resurrect a MicroVAX I (because it's there, that's why) and the CPU appears to have developed a fault. Microverify passes at powerup, but I can't get VMS to boot (it dies with a SYSBOOT-F-Unexpected Machine Check almost immediately). Also tried Ultrix and it dies

Re: DEC indicator panel mounting details

On Tue, Dec 19, 2017 at 2:25 PM, Josh Dersch <dersc...@gmail.com> wrote: > On Tue, Dec 19, 2017 at 2:15 PM, Al Kossow via cctalk < > cctalk@classiccmp.org> wrote: > >> >> >> On 12/19/17 10:49 AM, Noel Chiappa via cctalk wrote: >> >> > Could

Re: HP 9836U processor mystery...

On 11/8/2017 2:31 AM, Tony Duell wrote: On Wed, Nov 8, 2017 at 7:05 AM, Josh Dersch <dersc...@gmail.com> wrote: On 11/6/2017 8:59 PM, Tony Duell wrote: What BOOTROM version do you have in your machine? I have 4.0, I'm curious if there's a later version. Mine is 4.0 -tony Found

Re: Powering Sun 3/60 without a chassis was Re: Sun 3/50 processor board and unknown processor

On 11/21/2017 9:04 AM, Charles Dickman via cctalk wrote: On Tue, Nov 21, 2017 at 1:51 AM, Mattis Lind wrote: I think this is a 3/60 processor. Not 3/50. I said 3/50 because that is what the silkscreen says. I found some picture online and the 3/50 was a different

Re: Almost PDP 11/05 on Ebay

On Tue, Nov 21, 2017 at 10:25 AM, william degnan via cctech < cct...@classiccmp.org> wrote: > This looks to me like the power supply and backplane of a PDP 11/05, looks > to be in nice shape. Surprised no one grabbed this yet, esp someone with > an 11/05 that has issues with power supply.

Re: HP 9836U processor mystery...

On Mon, Nov 6, 2017 at 8:59 PM, Tony Duell <ard.p850...@gmail.com> wrote: > On Tue, Nov 7, 2017 at 4:52 AM, Josh Dersch via cctalk > <cctalk@classiccmp.org> wrote: > > > I'm curious if other people out there with 9836U's can confirm whether > their > > machi

HP 9836U processor mystery...

Hi all -- I mentioned a few weeks back that I picked up an HP 9836CU workstation.  The "U" variant differs from the normal 9836 in that it contains an upgraded CPU board that allows it to run early versions of HP-UX.  (The "C" indicates that this machine has a color display, which is also

Re: HP 9836U processor mystery...

On 11/6/2017 8:59 PM, Tony Duell wrote: On Tue, Nov 7, 2017 at 4:52 AM, Josh Dersch via cctalk <cctalk@classiccmp.org> wrote: I'm curious if other people out there with 9836U's can confirm whether their machine has a 68000 or a 68010 in it, I'd just like to settle the internet discr

Re: Any difference between VAX Q-bus and PDP-11 Q-bus cards?

On 12/6/2017 6:55 PM, Jon Elson via cctech wrote: On 12/03/2017 10:28 AM, Aaron Jackson via cctech wrote: I'm looking after a VAX 4000 for a friend, which has a SCSI Q-bus card (M5976). If the card did not have the large metal face, would it work in a Q-bus PDP-11? We are not going to

Re: Which Dec Emulation is the MOST useful and Versatile?

On Wed, Oct 25, 2017 at 5:20 AM, william degnan via cctalk < cctalk@classiccmp.org> wrote: > On Tue, Oct 24, 2017 at 11:26 PM, Evan Koblentz via cctalk < > cctalk@classiccmp.org> wrote: > > > Related to DEC emulation: is there a visual Straight-8 simulator? I'd > like > > to practice working the

ISO: DECtape controller

I was fortunate enough to acquire a TU56 this week, along with a TD8E controller.  However, the TU56 lacks the G888 flip-chips necessary to work with the TD8E; I know these parts are in short supply, but in the unlikely event that anyone has (a) a set of 5 G888 boards, or (b) a TC01, TC08 or

ISO: DD11-DF backplane

Hi all -- I finally tracked down the EIS option for my 11/40 and I have it up and running nicely (Ultrix-11 ATM, but I'll be playing with other stuff). Right now I only have a 4-slot DD11 backplane for SPC/MUD boards and I'd like a bit more space for expansion. I have a few DD11-DK backplanes

Re: ISO: DD11-DF backplane

On Wed, Jun 6, 2018 at 3:06 PM, Bill Degnan wrote: > > > On Wed, Jun 6, 2018 at 5:20 PM, Josh Dersch via cctalk < > cctalk@classiccmp.org> wrote: > >> Hi all -- >> >> I finally tracked down the EIS option for my 11/40 and I have it up and >> runni

Re: non-PC Floppy imaging

On Fri, Jan 5, 2018 at 11:52 AM, Guy Sotomayor via cctalk < cctalk@classiccmp.org> wrote: > Hi, > > I now have a number of uCode diskettes for my IBM 4331. I would somehow > like to image them so: > a) I have backups in case the floppies themselves go bad > b) be able to investigate their

Re: Restoring a VT50 (VT52 actually) .

On 12/23/2017 5:34 AM, Mattis Lind via cctalk wrote: 2017-12-23 13:32 GMT+01:00 Mattis Lind : Yes, the oscillator seems to work. But it is a pain to work with the VT52 since the print set has very little information. Where is the component list? I cannot verify which

Help identifying IC

Hi all -- I picked up this little toy at VCF West last summer: https://1drv.ms/i/s!Aqb36sqnCIfMouYd0HV0ZThE3FnE_Q As far as I can tell, it's supposed to be a clock and I assume it was a kit -- this one was definitely hand-assembled.  It's powered by two AA's (apparently, there are no

ISO: TIPL757A transistor or equivalent

Hi all -- I'm in the middle of repairing a console for a Symbolics 3640. This uses the earlier Phillips-based monitor and it employs a TIPL757A transistor in the deflection circuit. The one in mine is toast and I haven't been able to find a suitable replacement. The datasheet (or at least a

Re: IBM 9331-011 8" External Floppy Drive - eBay 183038271095

On Thu, Feb 1, 2018 at 1:08 PM, Paul Berger via cctalk < cctalk@classiccmp.org> wrote: > > > On 2018-02-01 3:43 PM, Ali via cctalk wrote: > >> This was dressed to go with the AS/400 line. Mine is dated 1994. >>> >> Anyone know how easy it is to adapt one of these to work with an IBM PC >>

Re: IBM 9331-011 8" External Floppy Drive - eBay 183038271095

On 2/1/2018 2:52 PM, Ali wrote: This is true. I have the pinouts at home if anyone wants them, I can post them when I get home from work. Josh, That would be great. Thanks. -Ali . Here's what I have, from notes I took about 10 years ago when I built a cable after beeping things out. 

ISO: PDP-11/24 SLU bulkhead

Hi all -- Finally got around to fixing the H777 supply in my 11/24 (in the "L-box" BA11-L chassis) and now I'm looking at getting it to do something.  First order of business is getting the console SLU hooked up, and I'm missing the bulkhead panel for it.  There's a 20-pin ribbon cable that

Re: Bendix G-15 [was: Re: VCF PNW 2018: Pictures!]

On 2/18/2018 11:30 AM, Mark Linimon via cctalk wrote: On Sun, Feb 18, 2018 at 01:04:38PM -0600, Jon Elson via cctalk wrote: Wow, even a Bendix G-15 in there (although with Control Data logo). Nope, look again, there are two :-) Small correction: there are three -- two upstairs, one in the

ISO: Tektronix 4404 peripherals

Hi all -- I'm working on fixing up a Tektronix 4404 workstation (runs Smalltalk-80!).  Or rather, I'm trying to collect the needed parts to assemble a complete system so that I might fix up said system -- at the moment I have only the main CPU unit (but hey, it's a good starting point).  I

Re: Miss categorized DEC box on ebay

The DIGITAL logo is visible on the inset portion of the panel next to the switches (it is a bit blurry). Further, this matches up with Mattis's picture quite nicely. It's an interesting shade of blue, but people have been known to repaint things... This looks like a DEC system to me. - Josh

Re: Pdp 11/34 System for sale in Riverside,ca

On Wed, Aug 1, 2018 at 8:32 AM, Wayne S via cctalk wrote: > http://www.ctonlineauctions.com/detail.asp?id=746466 > > From the pictures it looks to be a fairly complete system with Kennedy > tape drive. > Has a System industries controller but doesn't appear to have a disk drive. > There is a a

ISO: Scan of IASIS ia-7301 ("Computer In A Book") manual / text

Hi all -- I picked up a nice IASIS ia-7301 (see: http://www.old-computers.com/museum/computer.asp?c=544;) recently. It came with the binder and the computer but none of the paper bits. Does anyone have the manual scanned (or is there anyone who might have a copy to scan)? I'd like to print a

Re: MicroVAX I

On 8/14/2018 2:12 PM, Ethan Dicks via cctalk wrote: On Sun, Aug 12, 2018 at 11:36 PM, robertbeauchamp33--- via cctalk wrote: My mother is moving and her spouse has a MicroVax I he bought new back in 1984 for some crazy amount. I don’t see this model listed in your chart? Can you tell me if

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