- cctalk - classiccmp.org

by Marvin Johnston

As to what can you do with it? A local company was running a homemade NC drill using the (IIRC) Coco 2 with a pair of disk drives to drive the thing. I bought it for kicks, but never used it. To ask another similar question, I have a tektronix 2 axis controller that uses paper tape. Changing the questions slightly, WHY would I use such a thing? And ditto for an Intel software development system. I have more than enough nostalgia items to keep me busy for the next hundred years or so :). > Date: Mon, 23 Jan 2023 17:22:06 +0000 (UTC) From: > skogkatt007(a)yahoo.com Subject: [cctalk] any COCO enthusiasts > I don't even remember signing up for the RetroAbout64K mailing list. > I haven't seen any actual dicussion in my remembrance. But I do get > once or twice a week an email about COCO Nation or some such. Sounds > like a hot chocolate enthusiasts group seeking world domination. > Anyway I've had COCOs going back. Or 1 that I scarfed from a friend > for 20$ (back in 89 I think). I realize it has a 6809 and all, the > successor to the venerable 6800. But what can you do with the things? > Is there even a color output, despite the name. I can't remember. I > only remember playing Dungeons of Daggorath or whatever. The guy I > bought it from claimed he programmed a complex naval similation. Yeah > whatever.

2 years, 7 months

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And another real pdp11 is online......

by Chris Zach

So... Here we go.... :-) For reference, TALOS is my pdp11/83 system from way back long ago. It's running real hardware, RX02, RL02, a 330mb ESDI disk, TK70, and 4mb of parity RAM. Runs with 2,000 blocks of cache, read-ahead of 5, and purrs along pretty nicely overall. The next step is to get 4mb of PMI memory as the 1mb board I have *is* faster than Q bus memory but there's not a lot I can do with DECnet and TCP/IP in only 1mb. But finally I can get to my system without an RS232 cable. And fix the time offset. But progress! (Now I need to back it up) Thank you Johnny for writing this code. Welcome to TALOS, an RSX-11M-PLUS system! >hello 1,1 Password: RSX-11M-PLUS V4.6 BL87 [1,54] System TALOS 23-JAN-2023 07:48 Logged on Terminal TT12: as SYS2 Good Morning ***************************************************************** * * * Welcome to RSX-11M-PLUS * * * * Version 4.6 Base level 87 * * This is file LB:[1,2]LOGIN.TXT * * * ***************************************************************** Last interactive login on Monday, January 23, 2023 21:37:35 (TT1:) >

2 years, 7 months

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Sun 3/110 CPU board schematic?

by Kurt Nowak

Does anyone by chance have a schematic for the 3/110 main board? Its been running great until recently where my framebuffer died. It boots right up to where it polls the cgfour and then stalls. I was hoping to do some troubleshooting. Thanks, Kurt

2 years, 7 months

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And another real pdp11 is online......

by Chris Zach

So... Here we go.... :-) For reference, TALOS is my pdp11/83 system from way back long ago. It's running real hardware, RX02, RL02, a 330mb ESDI disk, TK70, and 4mb of parity RAM. Runs with 2,000 blocks of cache, read-ahead of 5, and purrs along pretty nicely overall. The next step is to get 4mb of PMI memory as the 1mb board I have *is* faster than Q bus memory but there's not a lot I can do with DECnet and TCP/IP in only 1mb. But finally I can get to my system without an RS232 cable. And fix the time offset. But progress! (Now I need to back it up) Thank you Johnny for writing this code. Welcome to TALOS, an RSX-11M-PLUS system! >hello 1,1 Password: RSX-11M-PLUS V4.6 BL87 [1,54] System TALOS 23-JAN-2023 07:48 Logged on Terminal TT12: as SYS2 Good Morning ***************************************************************** * * * Welcome to RSX-11M-PLUS * * * * Version 4.6 Base level 87 * * This is file LB:[1,2]LOGIN.TXT * * * ***************************************************************** Last interactive login on Monday, January 23, 2023 21:37:35 (TT1:) >

2 years, 7 months

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USB Attached 5.25" drives?

by Zane Healy

I’m now aware of the GreaseWeazle, but what I’ve not seen is if it allows standard access to the data on a floppy, or only provides a way to image the disk. With an USB attached 3.5” floppy the disk mounts on my Mac, and I can easily pull files off the disk. Does this work with the GreaseWeazle and a 5.25” floppy drive? Zane

2 years, 7 months

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HPE StorageWorks DAT 40 USB Tape Drive questions

by Stan Sieler

Hi, Has anyone used an HPE StorageWorks DAT 40 USB Tape Drive on a Mac / PC / Linux as a "standard" tape drive (i.e., I want to be able to "dd" from one, not use some HP provided backup package). (I have no interest in writing to tapes, BTW) I just got such a drive today (#1), and hope to use it to read 10 to 20 year old DDS2 & DDS3 tapes in a "tapecopy" (semi-raw data to disk file) manner. (The DAT 40 is a DDS4 drive, which supports reading DDS2 and DDS3 ... newer drives don't support DDS2, and I've never seen a DDS3 on USB.) I found HP's cache of docs/drivers for the newer DAT 72 drive, and some indications that the -40 and -72 are essentially similar (other than the -72 being a DDS5 drive). I'd prefer reading the tapes on a Mac, but if Linux/Win is needed, I'm hoping I can use a virtual one :) thanks! ---- 1. I'd try it out today, but my main computer is packed up, waiting to move to a temporary house, because we have to move out of our house due to water-damage driven kitchen remodel : (

2 years, 7 months

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IBM PC/XT and NEC "gold" tam

by skogkatt007＠yahoo.com

I have an xt mobo and some portion is populated w/NEC 4116 or 4164 chips (but 4116s were specific to the 5150, no? It's not in front of me). There are a bunch on the board, not sure if it's all the ram. Was this typical (I'm sure that wasn't the case). Is this an example of an early 5160? Why did they goldnplate the covers?

2 years, 7 months

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Searching documentation for

by jf.secker＠gmail.com

Hello List, I have made an implementation of Sytse van Slootens PDP2011 MINC system ( https://pdp2011.sytse.net/wordpress/pdp-11/minc/ ) on a Terasic DE10 Lite board. There exists documentation for the MINC system, but it is not complete. Schematics and/or user guides for the DEC MINC modules MNCAG and MNCTP are still missing and not to be found in the usual places. Maybe some of the contributors to this list own a MINC system wich contains these modules. If so, they might have the documentation I am looking for and are willing to share these. Thanks in advance! Jan Secker

2 years, 7 months

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2 sets of IRIX, 2 Indys and I1

by skogkatt007＠yahoo.com

2 years, 7 months

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OT: boxed board games (Avalon Hill, etc.)

by skogkatt007＠yahoo.com

Looking for a recommendation for an older (or even newer, some d games have been rereleased anyway) for a either historical boxed table game ~A.D. 400 - 1300. Or something sci-fi (nothing tv or movie related though).

2 years, 7 months

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Re: USB Attached 5.25" drives?

by Bill Gunshannon

On 1/21/23 10:33, geneb via cctalk wrote: > On Sat, 21 Jan 2023, Bill Gunshannon via cctalk wrote: > >> An interesting note. I have a device from DBIT that lets you >> hook up an 8" disk to the interface for 5.25 or 3.5 floppies. >> I wonder how I would go about reversing that process so I could >> hook one of these GOTEKs up in place of a physical 8" disk. >> > > I use the DBIT adapter with my AppleSauce and it works pretty well. But that's putting and 8" drive on a 34 pin interface. That works great. I want to go the other way around. 34 pin interface on an 50 pin 8" floppy controller. > You can also get one of these: > https://www.tindie.com/products/siliconinsider/8-floppy-disk-interface-50-p… I'll check this out. bill

2 years, 7 months

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scsi

by skogkatt007＠yahoo.com

How do you know if a termimation is suitable? Is connection all you have to worry about? I have an HP Ultra 320 drive, a 320/m compliant adapter (id jumpered to 2. Does a this need to be 0 for a single drive setup?), the cable with an ultra 320m terminator (" LVD + SE ACT NEG + HVD ISO " printed on it). Everything seems legit. I want to plug this into 2 different serverboards, an Intel SCB2, dual PIII, dual ultra 160/lvd channels, and an IBM xseries 350/Netfinity 6000 (8682 serverboard), quad PIII xeon slot 2 cpu's, similar scsi capability. Whaddaya think?

2 years, 7 months

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Contact information for Scott Lurndal? (or V-Series MCP/VS documentation)

by Andrew Warkentin

Does anybody have any contact information for Scott Lurndal? I'm trying to get his V-Series emulator working (I downloaded it quite a while ago), but it doesn't include any documentation and his wiki is no longer available (and a lot of pages weren't archived). I can run it and get to the coldstart screen but I'm not quite sure what to do from there. Bitsavers doesn't have much documentation for Burroughs medium systems.

2 years, 7 months

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fs: 2x IBM PCjr mobos (NJ)

by skogkatt007＠yahoo.com

These were sold to me as new, but the a.s bags they're in don't look new. Got them from BGMicro. These wouldn't be easy to test. 50$ per plus shipping. Check or m.o. No exceptions.

2 years, 7 months

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fs: 2 x Atomic Pis

by skogkatt007＠yahoo.com

45$ per plus honest shipping. These are new, bought them from Zon 7/2019. Never did anything with them. I also have 2 power bricks, 1 new, 1 a little used (from an old Sony dvd burnwr). Free with purchase. Both supply 3 amps at least. I suppose I could test these. I'll leave that up to tje buyer.

2 years, 7 months

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Disk pack production tools

by p.gebhardt＠ymail.com

Hello list, Yesterday, I was wondering, if there are any multiplatter disk pack production tools known to exist? There are disk pack inspection and cleaning tools in the wild (also one on eBay for a ridiculously high price) and occasionally, I also saw unused and originally packed disk platters for sale, but these are, to my limited knowledge, worthless if the production and platter alignment tools are missing. I remember vaguely somebody writing on this list years ago that some last systems were tossed by some company in California. But disk packs were also produced on the European continent and in for instance in Bulgaria(ISOT) for computer disk drives in the federal republic of Germany and the Soviet Union. I was just wondering about this since it is getting more and more difficult to come across disk packs provided that spare unused platters arw available. The (9)877 for the CDC SMD 80MB drives 9762 and OEMs seemed to have been fairly wide-spread and these still show up from time to time for offer. But the 300MB packs for the CDC 9766 are rare now. Older drives are close to unobtainium. I never came across a five-platter pack for my CDC 854 drive and i have never seen packs for my MMD 844 or my CDC BC3xx disk drive for 200MB disk packs. The question will rise what I wanna do with these. I have a working 9762 drive and some day, I would like to try to restore the other ones I have. For the SMD drives, I have spare heads and alignment tools and a disk pack cleaner. I don't intend to run them for hours because I don't have a clean room environment that is appropriate to the specs of these drives. I just love these pieces of storage technology and it would be great to at least have one pack for the drives that are missing one. Any thoughts from the disk experts would be greatly appreciated :) Greetings, Pierre -----------------------------------------------------------------------------http://www.digitalheritage.de

2 years, 7 months

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Re: [SPAM] LINC-8 sells for $2,150

by rar

The machine is in great condition. It was (carefully) turned on this evening! Blinking Lights! Bob Roswell

2 years, 7 months

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Fw: Re: AI applied to vintage interests

by skogkatt007＠yahoo.com

Not sure if my reply made it to the list. Yahoo seems to indicate it didn't - When they prove idiots will be far less prone to hit me, I'll be for that. I'll still choose to drive myself though. If you give someone else the keys, you may wind up going somewhere you don't want to. That'a what happens when you trade your autonomy for alleged security. The ****heads can do what they want. That's _their_ choice.

2 years, 7 months

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LINC-8 sells for $2,150

by Sellam Abraham

That LINC-8 sold for $2,150. A total bargain. https://hibid.com/lot/143159802/digital-equipment-corp-linc-eight-vintage Sellam

2 years, 7 months

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Re: [SPAM] LINC-8 sells for $2,150

by Bob Roswell

Confirmed that the LINC in question is now at the Computer Museum @ System Source This one is in great condition (except for the large live spider) Pictures from unloading the truck https://photos.app.goo.gl/2GvqTQukSEEnyoQp8 Bob Roswell museum(a)syssrc.com<mailto:museum@syssrc.com> https://museum.syssrc.com

2 years, 7 months

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AI applied to vintage interests

by skogkatt007＠yahoo.com

They write songs, create works of art. They can do a lot of stuff. The question in my mind is can these AI appliances make guesses and are they any good at it. Anyway how hard would it be for an AI to rewrite a standard MS-DOS to suit a particular machine? Have they reached the level of sophistication whereby they can analyze code and rewrite sections?

2 years, 7 months

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ebay: GE reel tape drives from the 60s

by P Gebhardt

Hi list , came across this listing: https://www.ebay.com/itm/354525985222 I just love the engineering quality of these early electro-mechanical systems! Reminds me of the CDC 60x series reel tape drives. BTW, not affiliated with the seller. In my point of view, 5000 bucks is a lot of money for these, though... Greetings, Pierre ----------------------------------------------------------------------------- http://www.digitalheritage.de

2 years, 7 months

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Damage to CD-R from CD Sleeve

by Zane Healy

This is a strange one. I have a bunch of CD sleeves like this, that I used to use. https://www.amazon.com/Mediaxpo-Double-sided-Refill-Sleeve-Holder/dp/B002RO… I’m trying to recover data from a Verbatim DataLifePlus CD, and when I started looking at it, I noticed that it has a cross hatch/herringbone pattern on it. Has anyone run across anything like this? At first I was hoping to simply wash it, as it seemed like that might be possible. I tried to wash it multiple times, and while it seems a little better, it’s still not clean, and I think that it might actually be etched into the surface, due to a chemical reaction. Thankfully Toast 14’s “Use Data Recovery” option was able to recover the data, and image the CD-R. Another problem I’ve found is that you need to use a Mac running a version of MacOS prior to 10.15 if you have HFS formatted CD’s. I bought a nice external drive, since my DVD-RW drive in my 2010 Mac Pro died, planning to use it on my MacBook Pro, only to discover that MacOS 12 wouldn’t read most of my CD’s. You can’t even do a ‘dd if=/dev/disk5 of=test.iso’, as they appear to have broken basic UNIX functionality. Zane

2 years, 7 months

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Positive Logic vs. Negative Logic Controller in DEC TU56

by Bill Degnan

I am working to understand a TU56 in my possession that came from an unknown environment. A connecting cable that came with it reads "PDP9" on one end so I wondered if this is actually associated with the TU56 or just sitting in the same box before the TU56 came to me. I have read here: https://gunkies.org/wiki/TU56_DECtape_Transport That one can have a TU56 with a M531 or a G742 to serve as a bus converter. THe M531 is for situations where one has a negative logic controller and the G742 is for when one has a positive logic controller. Jumping a few steps ahead, if the TU56 was attached to a PDP-9, would it use a G742 if one tried to attach a TU56 to it? I feel as if the G742 would be used if the TU56 was intended for a PDP8 and not a PDP11, right? I searched the web and will continue to research but I thought I'd ask experts here. No, I don't use ChatGPT. Bill

2 years, 7 months

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WPS-8 vs. WPS-200

by Chuck Guzis

Other than the media size (8" vs. 5.25"), what are the substantial differences between WPS-8 and WPS-200? I'm mostly interested in the software functionality. Thanks, Chuck

2 years, 7 months

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Re: I need to make some space...

by wh.sudbrink＠verizon.net

You're quite right. I'm in Maryland, near Washington, DC. As to prices, I'm looking for best offer. Preference to local pick up. Things, like the HP-150 docs, may become "free to a good home for shipping". By the way, I don't need any more emails telling me how valuable the DOS 1.0 is. I get it. Bill S. On Monday, January 16, 2023 at 04:07:21 PM EST, js(a)cimmeri.com <js(a)cimmeri.com> wrote: Location?? Prices?? or Free? On 1/16/2023 2:28 PM, William Sudbrink via cctalk wrote: > I'm not getting rid of my whole collection or anything, but things are > getting a little tight in terms of physical space and I have stuff that > simply doesn't keep my interest. I'd rather not do ebay so I'll offer them > here first. I will put up pictures if there is interest. None of this is > "barn stored". It has all been in my temperature controlled house since > last century. > > > > 1) HP series 100 (the 150 and 150 touchscreen II) documentation. This > could be described as the "grey wall" for the HP 150. All the basic books > plus Wordstar, Spellstar, Multiplan, etc.etc. At least 20 "boxed books". > Many (I think all but have not checked yet) have original diskettes. HP-150 > with built in printer to come when I get back to it. > > 2) IBM PC original "boxed books" > > a) "DOS" part number 6024001 on spine. I would call the condition > excellent. Two original 5.25 diskettes: DIAGNOSTICS Version 1.02 6081552. > DOS Version 1.00 6172212 (I'm tempted to keep this because of the CP/M -vs- > DOS controversy) > > b) "DOS" part number 6024001 on spine with round sticker "1.10 with > Graphics". I would call the condition very good. One original 5.25 > diskette: DOS Version 1.10 1502330 > > c) Four UCSD p-System books: Beginner's guide, Assembler reference, Internal > Architecture Guide, User's guide. The "User's guide" box contains five > original 5.25 diskettes: STARTUP, SYSTEM 2, SYSTEM 4, EXTRAS and UTILITIES. > > 3) IBM FORTRAN-77 Reference for the UCSD p-System "boxed book". > Contains one original 5.25 diskette: UCSD p-System FORTRAN Version IV.0 > 6936510 > > 4) IBM COBOL Compiler by Microsoft "boxed book". Contains two original > 5.25 diskettes: LIBRARY 6936566, COBOL 6172250 > > 5) Various other original IBM PC "boxed books". Document Retrieval > Assistant, 3101 Emulation, Dow Jones Reporter, SNA 3270, etc. etc. Maybe a > dozen. > > 6) The box and binder for "Guide to operations, Personal Computer XT". > Unfortunately, it does not contain this. Instead it contains "The CP/M and > IBM Public Domain Library" by Dynacomp. This all seems to be later CP/M, > running on the IBM PC or Kaypro. Just documentation and listings, no media. > > 7) IBM Graphics Development Toolkit "boxed book". Three original 5.25 > diskettes: VDI device drivers, Language Libraries, Supplemental Programs. > > 8) BASIC - Personal Computer - PCjr "boxed book". Contains original ROM > Cartridge "Cartridge BASIC" 1302285. (Maybe this should go with the PCjr I > will be offering when I dig it out) > > 9) ERGO MOBY BRICK 486DX-33 computer. Missing original power supply. I > cobbled together a supply last century some time and it worked then. Has > not been powered on in at least 25 years. > > 10) Osbone Executive. Limited Edition, personalized plaque to "ANNETTE > KING". It ran last century. Has not been powered on in at least 25 years. > > > > More to come. > > > > Bill S. > > >

2 years, 7 months

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I need to make some space...

by William Sudbrink

I'm not getting rid of my whole collection or anything, but things are getting a little tight in terms of physical space and I have stuff that simply doesn't keep my interest. I'd rather not do ebay so I'll offer them here first. I will put up pictures if there is interest. None of this is "barn stored". It has all been in my temperature controlled house since last century. 1) HP series 100 (the 150 and 150 touchscreen II) documentation. This could be described as the "grey wall" for the HP 150. All the basic books plus Wordstar, Spellstar, Multiplan, etc.etc. At least 20 "boxed books". Many (I think all but have not checked yet) have original diskettes. HP-150 with built in printer to come when I get back to it. 2) IBM PC original "boxed books" a) "DOS" part number 6024001 on spine. I would call the condition excellent. Two original 5.25 diskettes: DIAGNOSTICS Version 1.02 6081552. DOS Version 1.00 6172212 (I'm tempted to keep this because of the CP/M -vs- DOS controversy) b) "DOS" part number 6024001 on spine with round sticker "1.10 with Graphics". I would call the condition very good. One original 5.25 diskette: DOS Version 1.10 1502330 c) Four UCSD p-System books: Beginner's guide, Assembler reference, Internal Architecture Guide, User's guide. The "User's guide" box contains five original 5.25 diskettes: STARTUP, SYSTEM 2, SYSTEM 4, EXTRAS and UTILITIES. 3) IBM FORTRAN-77 Reference for the UCSD p-System "boxed book". Contains one original 5.25 diskette: UCSD p-System FORTRAN Version IV.0 6936510 4) IBM COBOL Compiler by Microsoft "boxed book". Contains two original 5.25 diskettes: LIBRARY 6936566, COBOL 6172250 5) Various other original IBM PC "boxed books". Document Retrieval Assistant, 3101 Emulation, Dow Jones Reporter, SNA 3270, etc. etc. Maybe a dozen. 6) The box and binder for "Guide to operations, Personal Computer XT". Unfortunately, it does not contain this. Instead it contains "The CP/M and IBM Public Domain Library" by Dynacomp. This all seems to be later CP/M, running on the IBM PC or Kaypro. Just documentation and listings, no media. 7) IBM Graphics Development Toolkit "boxed book". Three original 5.25 diskettes: VDI device drivers, Language Libraries, Supplemental Programs. 8) BASIC - Personal Computer - PCjr "boxed book". Contains original ROM Cartridge "Cartridge BASIC" 1302285. (Maybe this should go with the PCjr I will be offering when I dig it out) 9) ERGO MOBY BRICK 486DX-33 computer. Missing original power supply. I cobbled together a supply last century some time and it worked then. Has not been powered on in at least 25 years. 10) Osbone Executive. Limited Edition, personalized plaque to "ANNETTE KING". It ran last century. Has not been powered on in at least 25 years. More to come. Bill S. -- This email has been checked for viruses by Avast antivirus software. www.avast.com

2 years, 7 months

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PDP-11/40 for sale in New Zealand

by Bruce Ray

A friend has a PDP-11/40 for sale in New Zealand and sent me the following information: "I have a PDP11/40 for sale. It includes three (3) x RK05’s in various states of repair, one (1) tape unit, one (1) A/D unit, spare parts of unknown status, lots of disk packs, tapes and what looks like all of the circuit diagrams for every card and peripheral in the machine, plus RSK-11 manuals, some cobol manuals etc. It was formerly used in the Wellington Hospital diagnostic lab, presumably hooked up to some Lab machines there. Note that it is 230v 50hz, so while the CPU may be easily changed to your local voltage (I don’t know but I suspect it’s a transformer tap) the disk spindles are likely to rotate at the incorrect speed if they are clocked off the 50hz mains frequency. The racks have been split to make it easy(er) to get out of the its original location in a basement, and there is tape on the panels just for shipping purposes. I removed the front panel for shipping to prevent any damage, so it’s just installed temporarily for the photos. They will be wrap separately in place in a box for shipping. You can check out photo’s here: https://www.dropbox.com/sh/fcldk7rekg6sbq3/AADeCjVHhz2YNr1CVxZK5JKZa?dl=0 This system will take time and patience to restore. As far as I can tell everything is there, well maybe some of the disks have been ratted for parts to get another disk working, but of course it comes with no guarantees of any kind. There are 8 cards in the CPU slots, plus five other cards that I assumed to be tape controller, disk controller, A/D controller, plus memory x 2 or memory x 1 plus something else. Keep in mind that all of the manuals, disk packs, tapes etc are boxed up on a second pallet so there are two pallets for shipment." Contact Brendan McNeill, Christchurch, New Zealand. at brendan(a)mcneill.co.nz (I have no financial or other interest in this system, but would like to see it go to a good home...) Bruce -- Bruce Ray Wild Hare Computer Systems, Inc. Denver, Colorado USA bkr(a)WildHareComputers.com ...preserving the Data General legacy: www.NovasAreForever.org

2 years, 7 months

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Gotek as RX50 replacement for DECmate II

by hush＠dec.dog

hello cctalk! i have been working for the past few days on a DECmate II with what i believe to be an ailing RX50. i have a gotek with updated flashfloppy firmware, but for some strange reason i have been completely unable to get the DMII to boot a floppy image from it. i have been trying to convert the OS/278 and WPS images on the dbit and ibiblio archives into a working format for the gotek but none of them will work. at this point i have tried too many conversions to recall but they all result in the same blinking floppy icon when the unit boots. i have “host = dec” in my FF.CFG per the wiki. has anyone else been able to get this working? if so, could you please provide known-good images for a gotek, or the steps to generate them? thank you in advance! — .hush Got interesting stuff to sell? Let me know! Looking for DEC, IBM, CDC, SGI, Data General, and more!

2 years, 7 months

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Re: Reading Old Floppies

by Tarn Alcock

For cleaning and maintaining floppies give shadowtronblog on YouTube a watch. He lovingly restores various vintage equipment. There are a few vids of him restoring some floppies, cleaning heads, greasing mechanical bits etc. I think his TRS80 playlist had a fair bit of that in IIRC.

2 years, 7 months

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Reading Old Floppies

by Zane Healy

When reading old floppies, how often is it advisable to clean the drive? I managed the first 3.5” floppies no problem, I’m using a USB Floppy Drive hooked up to my Mac Laptop, I was able to image them using “Disk Utility”. The next two floppies have had errors. Though I think I was able to successfully copy all the files off the one. Also, what is floppy drive cleaning fluid made of, and how well does it age? I know I’ve got at least a couple cleaning floppies around here, but they’re *OLD*. Zane

2 years, 7 months

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old HP scope with SMA connectors

by skogkatt007＠yahoo.com

Do I really need a torque spanner? Chinese spanners aren't expensive. But I'm not sure the unit even works (the mainframe seems to work fine, not so sure the ancillary test set). Hp 54120a + 54122a << iirc, maybe 54121a??? In any event if working this is either a 12ghz or 20ghz setup.

2 years, 7 months

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large HP monitors need home/s

by skogkatt007＠yahoo.com

2 x 16" Trinitrons, missing rear plastic covers 1 is a 98789a 64hkz, forget the other, 48khz 1 x 19" large rectangular color unit, doesn't work. I'll be tossing these before very long.

2 years, 7 months

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DEC LINC Eight auction

by steve shumaker

Popped up in a search: A DEC LINC Eight up for auction in Friedens, PA. https://hibid.com/lot/143159802/digital-equipment-corp-linc-eight-vintage Currently has a single bid for $1.00.... They are even offering shipping! Visually looks to be in excellent shape https://cdn.hibid.com/img.axd?id=7750162854&wid=&rwl=false&p=&ext=&w=0&h=0&… Steve

2 years, 7 months

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Restoring unknown format backup tapes

by John Herron

This may be a larger conversation than I intend but how would you all generally start if you ha backup tapes that you wanted to try and read/restore? Supposedly they're Amiga qic tapes. I'm a little worried about the structural integrity of the tapes. Not knowing what software was used, would this be a literal job for something like tar via a Linux system? Then see if I can interpret the dump and sort out files afterwards? I might see if a local group wants to help play with this effort since I think I only have 1 drive in unknown condition.

2 years, 7 months

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Diablo series 30 or Dec RK03

by jake utley

Hello everyone I’m a young collector (18) of 60s and 70s minicomputers and micros. I have been restoring a PDP-8L and would love to find ether a Diablo series 30 or Dec RK03 removable cartridge drive to go with this system. I am in the uk South Yorkshire to be precise and would love any leads anyone could provide on where I could find one would very much appreciated. If nobody know where one of these drives can be located any means of mass storage for a pdp 8L and data general nova system will be appreciated since I want to move my collection forward and have the systems set up with full period setups. Thanks very much in advance. Jake

2 years, 7 months

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Re: PT-68K

by Wouter de Waal

Hi all I get the digest so I lag. >From: skogkatt007(a)yahoo.com > >It's a IBM PC form factor 68000 based project that was featured in >Radio Electronics. Anyone remember it or even know what I'm talking >about? It would be a fun prokect. Come on over to "List: <fufu(a)flexusergroup.com>" there are people still running those. Peter Stark passed away September last year. There's also Ingo Cyliax' 68030 box, also PC form-factor and ISA. W

2 years, 7 months

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DEC/HP computers from deceased collector (nr Andover UK)

by Chris Bryant

Through a mutual friend I've been shown a collection of computers: MicroVAX 3400 - the module complement is KA640-AA/MS650-AA, MS650-AA, CXY08-M, TQK70 (with a TK70 drive), M9060-YA. In a floor-standing enclosure with "BA213 CPU Mod" on the label, and Model 640QS-B3 Alphastation 200 4/233 - there are three of these Compaq AlphaServer DS10 Vaxstation 3100 also HP Visualise C3000 - a pair The widow believes they were working when last used. They are available free to a good home/modest donation. Photos etc available. Chris

2 years, 7 months

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WTB: IBM 700/c

by skogkatt007＠yahoo.com

preferably working. Or known screen issues but otherwise working. the mono version intrigues me (model 700). But I need a color unit to test out all these screens I have sitting here. Now if anyone should need a NOS screen for a 700c, email me directly. No flim flam on everyone's screen.

2 years, 7 months

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Downsizing "feeler"

by George Currie

Greetings all, it's "that time", the time I've finally accepted that I no longer have the time/energy/space to devote to this collection/restoration hobby that I've been able to enjoy for several decades now.During this time, I've managed to amass a pretty sizeable amount of hardware, software, manuals, etc. We're talking half a garage, part of a large shed and a storage rental's worth of stuff. I need to go through and hit some highlights, but there are things from rack mount PDP-10's, an SGI (Challenge XL rack, Indy's), tons of old Macs (original, 512, original, Portable, etc), Lisa, Apple II, Commodore, TRS80, Grid, HERO robots, DG Aviion, HP PA-RISC, MIPS system, early luggables (e.g. Zenith), boxes of ISA cards, etc, etc, etc. A good 20ft uhaul trucks worth of stuff.There is no way I can piece meal stuff, so I'd be looking for someone, or an org like a museum, who is willing to take the whole enchilada.This is an early feeler before I start doing actual inventory to see if a) is anyone interested in/capable of dealing with a large collectionb) is anyone aware of someone, or a museum, that may be interestedI know I'm a bit light on the details, and we all know where the devil lives. But this is the first step.The collection is located in Central Texas.TIA for any interest, leads, pointers, sympathy, ridicule, etc.George

2 years, 7 months

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loading vt220 fonts

by David Griffith

I'm trying to figure out how to created and load a "soft character set" into a vt220 terminal. These documents: https://vt100.net/shuford/terminal/dec_vt220_codes.txt, and https://vt100.net/docs/vt510-rm/DECDLD.html, seem to talk about how to do it, but I don't follow this well. I'm guessing the fonts are made up of escape sequences. Then I guess they are loaded by simply printing them to the terminal. If that's the case, where are the examples of such sequences? Playing around with vttest, there's an option to "Test Soft Character Sets" in the "VT220 Tests" menu. But I get the error message "You did not specify a font-file with the -f option". Where can I find examples of that file? Putting these together, I'm guessing what vttest wants is a file containing sequences described in those two documents. So, where do I go from here? -- David Griffith dave(a)661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

2 years, 7 months

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How to print old files.

by ben

How do you print old files in ASCII 63 to modern devices, so you keep the ← and ↑ 's and not printing _ and ^ ? Ben.

2 years, 7 months

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DEC and compatible boards for sale

by Mike Katz

An acquaintance of mine as the following boards for sale. Please email him directly at bojo7777(a)yahoo.com if you are interested. Please mention the board number and box when emailing him. Please forgive any cross posting. DEC Boards Box QTY. DEC # BUS Number Description d 1 3010-5004 d 2 3010-6001 d 3 3010-6002 d 1 3010-6003 d 2 3010-6006 d 3 3010-6007 d 1 3010-6008 c 1 9400-6201 c 1 9400-6202 c 1 9400-6203 c 1 9400-6214 d 1 9901-5040 d 1 9901-6047 e 1 B212 Dual RS FF, Dus Driver Out, Delayed & Not Delayed RS Inputs b 1 G190Control & Data card Loops G109 / 5009709H f 1 U G7273 Bus Grant and Non-Processor Grant Jumper i 1 LPWR GS-2 e 2 M101 (one has front half of tab broken) Bus Data Interface (2 inpout gates, 15 circuits, 1 common and 1 independent input e 4 M111 16 Independent Inverters e 5 M113 10-2 Input NAND Gates e 1 M302 2 One Shot Delays i 1 M3110 i 1 M3111 b 1 M3112 j 1 U M5903 MASSBUS Terminal Transceiver g 3 U M5922 RM03 Transceiver Port A b 1 VMV21 U M7067 Video Display Sys:Sync Generator & Character Generator (64-Char x 25 lines) i 1 KDF11-UA U M7133 11/24 CPU Board, line clock & 2 SLUs i 1 KDF11-UA U M7133 11/24 CPU Board, line clock & 2 SLUs g 1 RK11-D U M7255 RK05 Disk Control Module b 1 M7684 control sequencer RM02/RM03 Control Sequencer i 1 M7686 control interface RM02/RM03 Control Interface i 1 RL11 U M7762 RL01/02 Disk Drive Controller i 1 DEUNA U M7792 DEUNA Port Module.Unibus to Ethernet Controller e 1 U M783 Bus Transmitters 12 Drivers e 1 U M783 Same part# as above but longer version board Bus Transmitters 12 Drivers e 1 U M785 Bus Transceiver, 8 Drivers/8 Receivers e 3 U M785 Same part# as above, but longer version board Bus Transceiver, 8 Drivers/8 Receivers g 1 DL11-W U M7856 SLU & Realtime Clock Option c 1 DUP11-DA U M7867 SDLC or DDCMP Synchronous Interface h 2 DRV11-B Q M7950 16-bit DMA Parallel Gneral Purpose Interface a 1 MSV11-CD Q M7955 LSI MOS memory (missing tabs on front) 16K x 16 MOS RAM with on board refresh h 1 RLV11 Q M8014 RLV11 Bus control RL01 Bus Controller Board 2 f 1 MSV11-DD Q M8044 DC 32K x 16 MOS RAM f 1 MSV11-DD Q M8044 DM 32K x 16 MOS RAM h 1 RLV12 Q M8061 RL01/RL02 Disk Control, 22 bit address a 1 M8093 RM02/RM03 c 1 M8278 RM02/RM03 a 1 TM02-FE U M8901 Data Synchronizer 75 IPS Drives (Tu16) a 1 TM02-FE U M8901 YB Data Synchronizer 75 IPS Drives j 1 M8912 TU16 Slave Test Function Generator b 1 M8916 Logic and Write RM02/RM03 Logic And Write g 1 M8932 RM02/RM03 a 1 M8934 RM02/RM03 f 1 M9001 YC Bus Conneector, 2 H854's Bussed Together, All signals come out, 8 lines jumpered to ground, terminated. j 1 Q M9047 Grant Continuity f 1 U M9312 Bootstrap Terminator w/5 ROM Sockets e 2 NAND gates If this is an M937 it is an internal PDP-8/E Internal Bus Connector Mirror of M936 i 1 G231EPDP II memory driver G231E XY Selection, Current Source, Address Latch & 8K Decode b 1 S TK TU16 Read Amp board 5012235C RM02/RM03 Tk Tu Read Amp Board C e 1 TP-0109 8 bit counter regulator RM02/RM03 Bit Counter Regulator g 1 W940 * Has 10 rows of 5 per row inserts for ic chips, but no chips on board.* Wire Wrap Board with pins on component side f 1 W941 Wire Wrap Board with holes for 25 16 pin Ics j 1 W943 Wire Wrap Board with sockets for 25 16 pin Ics h 1 Q W9514 W912 Wire Wrap Module with 25 pre-mounted DIP sockets Stu Phillips Quantity Description Bus Additional Description 1 306A 1 DAC-II Rev-B Andromeda systems Q Digital to Analog Converter (4 Channels, 12 bits) 1 MSI-11 Andromeda systems Q Multiple Serial Interface (4 Serial, 1 can be used for parallel printer) 4 303-0225 2 303-0171-001P5 has 4 rows of 8 chips 1 No PN: looks identical to 303-0171P5 but no chips on it. ADAC Quantity Descripton 2 MO: 1900 D4-10060 rev-7 U Unibus from qbus translator 1 MO: 1012 EX C3 10112 rev-1 LSI-11 12 bit ADC, 16 single ended or 8 double ended channels 2 1616 / 32 HCO LSI-11 16 channel High Current latched outputs 4 1632TTL D4-10035 Rev-2 LSI-11 32 I/O lines, 8 latched outputs.DRV11 compatible 3 1616CCI C4-10064 Rev-2 LSI-11 16 contact closure inputs, debounced and latched 1 1604 POC C3-10198 Rev-1 Misc. Boards Quantity Description 1 MDA / ICRO Development Associates MXV21 LSI-11 Dual Density RX02 Compatible controller 1 Babbl-Pac MBB-11A LSI-11 46K Bubble Memory Board (needs MBC-11 Controller) 1 Southern Systems Inc. PDP Line Printer controller assy No: 9060 rev-B 1 Kennedy Co. Ramp Generator 5733 Part of a Kennedy Magnetic Tape Drive I think 1 Texas Instruments Remote Device control Bd# 973900 1 ? AYMV MIC-1-1 is only thing written on board 1 Computer Technology DMA-L11 LSI-11 16 bit DMA PIO Interface 1 Nortek AAM-11L LSI-11 Auto-answer/Auto-Dial low speed modem/serial interface 1 AKCX 76972300FPPGRX32 and 7692202 rev-A are only things written on board 1 PPDRX18RB / 54302906B 2 Applicon Extender short PL-31370-001

2 years, 7 months

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PDP-11 System Identification Register

by Martin Bishop

Can't find very much information about the PDP-11 System Identification Register : RO at 77777764 The occasional processor handbook says not implemented or the 11/xy reports num. Interogative : information sources, e.g. a tabulation of known values Martin

2 years, 7 months

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Thinking of selling my 11/23+

by Charles

Is there any interest in my working 11/23+ system? I rarely run it any more, but don't know what it's worth. Corporate cabinet, VT220 console, 4 MB RAM, two RL02 drives (RT-11XM, TSX-Plus 6.50), interface for 3.5" floppy drive, 16 serial ports. Located in south central Missouri so pickup would be greatly preferred :) thanks Charles

2 years, 7 months

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Altos 386 series 1000 installation disks & tape

by BogDan Vatra

Hello there, Earlier this December I got an Altos 386 series 1000 with lots of documentation and some installation floppy disks and one tape. I must say that it's an amazing machine! I'd like to reinstall the os but I have two problems: 1. It can not access the floppy drive. I tried it with another one, but still no joy. Does anyone have any schematics of the motherboard? I ordered a new floppy controller but in case the controller is not the faulty piece I'll need some schematics to track the problem. 2. I could clone some of the floppy disks on another computer but not all of them. I also found that the tape is overwritten with something else. Does anyone have these installation media? I'm missing sdx v3.6s0, aom menu shell v 3.0s2, Altos system v rts upd V5.3es2 and the tape Altos system v rts v5.3eT2 (utilities). Anyone know how to contact the Altos folks? Maybe they still have and are kind to share the installation media and the schematics. I have cloned Altos system v rts v5.3es2 (root), Altos multiview 1.6.2s0 two disks and the HDD. Btw, none of the Linux filesystem modules could not mount the hdd, therefore I created one based on fuse. If anyone needs such a thing you can find the srcs here : https://github.com/bog-dan-ro/altos . Happy new year! Yours, BogDan. P.S. I contacted Al from bitsavers, and my floppy disks clones will land to his collection (http://bitsavers.trailing-edge.com/bits/Altos/386-series/) P.S.' Al's tape image clone has a strange tar like format, does anyone know what's the exact format? I'd like to create a tool to extract them...

2 years, 7 months

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Old QIC02 tape drive problems

by Nigel Johnson Ham

Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU Amateur Radio, the origin of the open-source concept! Skype: TILBURY2591 Happy New Year everybody. Pleased with my success at getting a QIC02 drive running through an MTI MSV05B on my RT11 system today, my jaw dropped when I did a DIR MS0: and saw the pulley turning and the tape not moving, as liquid rubber starting accumulating on the drive belt! It turns out that the rubber wheel inside the TK25 cartridge had melted. OK, the cartridge goes in the bin, but has anybody found a way to clean the residue off the drive without damaging the drive belt? As always, any advice (other than to dump the whole thing :-) ) gratefully accepted. Nigel

2 years, 7 months

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Re: How to print old files.

by Alan Frisbie

ben <bfranchuk(a)jetnet.ab.ca> wrote: > What I would like to get is a serial printer (rs232), with a definable > character set. Does any one know of a cheap one? Probably not cheap unless you get lucky, but an excellent choice would be the Toshiba P1351 (not to be confused with their later 1351 laser printer) or the narrower P1340. They are 24-pin dot-matrix printers that feature downloadable fonts and both serial and parallel interfaces. I got my P1351 in 1984 and it has served me well. I created (OK, stole from Xerox) a double-high double-wide font that I used for printing box labels when I moved. You could also do really nice graphics with it, at a resolution of 180 x 180. CCSI (Cerritos Computer Systems Inc.) wrote a driver for the P1351 for their CCSI-Plot (Plot-10 compatible) plotting package. I can provide a copy of the software (in Fortran for PDP-11) and scans of the manuals for both the software and printer, should you get one. You can still buy ribbons for it, so it would be a really good choice. Alan Frisbie

2 years, 7 months

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Space-Time Productions Z80 board

by David Ray

Amardeep S Chana, I have the Joel Owens’ Z80 Master Controller Board that you asked about back in October of 2017. I have a folder of collected documents. If you are still interested I could share those some place. /David Ray

2 years, 7 months

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OT but FREE: really beat up Asus eeePC 900A (Linux)

by skogkatt007＠yahoo.com

Broken monitor hinges. All sort of madness. No screws. No structural integrity whatsoever. But the sucker works. Assuming you glue it all to the point it'll sit up strait on it's lonesomes, plan on an external mouse and keyboard (kb works though afaik). You pay shipping from 08758. Check or m.o. only.

2 years, 7 months

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