- cctalk - classiccmp.org

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, 6 months

11
16
0 0

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, 6 months

1
0
0 0

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, 6 months

23
75
0 0

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, 6 months

3
2
0 0

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, 6 months

15
34
0 0

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, 6 months

2
3
0 0

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, 6 months

2
2
0 0

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, 6 months

2
1
0 0

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, 6 months

1
0
0 0

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, 6 months

1
0
0 0

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, 6 months

3
4
0 0

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, 6 months

1
0
0 0

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, 6 months

15
42
0 0

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, 6 months

1
0
0 0

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, 6 months

2
2
0 0

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, 6 months

11
14
0 0

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, 6 months

6
7
0 0

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, 6 months

6
10
0 0

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, 6 months

4
3
0 0

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, 6 months

5
6
0 0

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, 6 months

2
1
0 0

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, 6 months

7
9
0 0

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, 6 months

8
11
0 0

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, 6 months

7
10
0 0

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, 6 months

1
0
0 0

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, 6 months

2
1
0 0

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

2
1
0 0

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

3
3
0 0

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

1
0
0 0

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

1
0
0 0

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

1
0
0 0

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

1
0
0 0

Fixing a MSV11-QC, tables wrong?

by Chris Zach

So I have an MSV11-QC (the 4gb Q Bus memory board) that has a failed bit. On an 11/73 it throws the following error: Expected data = 125252 (1010 1010 1010 1010 Bad data = 121252 (1010 0010 1010 1010) Address = 10015140 Which puts the error in the top 2mb (1mw), bit 4000. No biggie, consulting the matrix at: https://gunkies.org/wiki/MSV11-Q_QBUS_memory Shows this to be bank 4, bit 4000 or E85. Cut out E85, popped the board in (to double check before replacing) and I see this: Expected data = 125252 Bad data = 121252 Address = 02015140 Ooops. That would be decimal 531,040 which puts it in bank 1? Which should be E88, where did I go wrong here? Or is the table for the MSV11-Q only valid for the 64k ones and not the 256k ones? If so the bits may be right, but the banks are different. Anyone want to cross-check this or my maths? Thanks! CZ PS: Sorry if duplicates are getting sent to the list. I'm retiring cz(a)alembic.crystel.com and replacing it with cz(a)beaker.crystel.com. If the list manager could update my email I would appreciate!

2 years, 7 months

2
1
0 0

Re: How to print old files.

by Martin Bishop

Ben I think you have the essence of a solution, using the Unix filter paradigm at user or driver level. Your desire to retain the original file format(s) is very sensible, it is always best to record "raw" data - for the greatest fidelity. The ISO 7-layer model provides a paradigm for data transport/storage formats and derived (presentation) formats. Good luck with the weather Martin -----Original Message----- From: ben [mailto:bfranchuk@jetnet.ab.ca] Sent: 01 January 2023 14:27 To: Martin Bishop <mjd.bishop(a)emeritus-solutions.com>; General Discussion: On-Topic and Off-Topic Posts <cctalk(a)classiccmp.org> Subject: Re: [cctalk] Re: How to print old files. On 2023-01-01 6:53 a.m., Martin Bishop wrote: > Folks - wishing all a Good New Year > > Ben > The first ingredient must be a printer with a a suitable font table, in these times of soft fonts that should be a given or tractable. > The second element is to convert to and use an MCS / multibyte character representation - which can differentiate _ ^ and the desired arrow marks. > To do this you could: > - load the file into an editor, save it in MCS format, perform the > necessary substitutions (two global replaces) > - write a program / script to achieve the same effect, read char and convert/translate to MCS octets. > Note. It is just possible you will find a font with the arrows in the upper 128 glyphs of 8 bit "ascii", in which case you can skip the MCS conversion. > HtH > > Martin A filter of some kind is needed. With the rise of emulators for old machines,I can see text being written with terminal emulation of the orginal i/o devices, but that leaves printing or tranfering text files a problem. JOE could have a REAL - big iron 67, SAM runs windows 2000, TOM has a micro VAX. Every thing gets dumped to the cloud. One must keep data as files, none of this crappy mess that this modern 'buy a app' to print,or read. How does one share binary and paper tape/cards as files? Ben. PS: Back to inventing big iron 67. tag line: Cloud computing delayed to to bad weather, server is under 3 feet of snow.

2 years, 7 months

1
0
0 0

Fixing a MSV11-QC, tables wrong?

by Chris Zach

So I have an MSV11-QC (the 4gb Q Bus memory board) that has a failed bit. On an 11/73 it throws the following error: Expected data = 125252 (1010 1010 1010 1010 Bad data = 121252 (1010 0010 1010 1010) Address = 10015140 Which puts the error in the top 2mb (1mw), bit 4000. No biggie, consulting the matrix at: https://gunkies.org/wiki/MSV11-Q_QBUS_memory Shows this to be bank 4, bit 4000 or E85. Cut out E85, popped the board in (to double check before replacing) and I see this: Expected data = 125252 Bad data = 121252 Address = 02015140 Ooops. That would be decimal 531,040 which puts it in bank 1? Which should be E88, where did I go wrong here? Or is the table for the MSV11-Q only valid for the 64k ones and not the 256k ones? If so the bits may be right, but the banks are different. Anyone want to cross-check this or my maths? Thanks! CZ

2 years, 7 months

1
0
0 0

Debugging possible RAM faults on OCC1

by Steve Platz

I recently got an Osborne 1a, which needed a lot of cleaning and had probably been stored in a barn for some time. After getting the drive parts to move freely again and removing a blown cap on the power supply, the machine will start up and the screen is green, although it's just showing some random characters. I understand from someone's advice that some RAM may have gone bad. At this point I'm not sure if I should continue to try to get this going, or just resign it to someone with better resources for diagnosing the issues. If anyone has some advice for moving forward with this, I'd be interested to listen. Some context: this is my first such restoration endeavor. Thanks - Steve On Sat, Dec 31, 2022 at 12:00:07PM -0600, cctalk-request(a)classiccmp.org wrote: > Send cctalk mailing list submissions to > cctalk(a)classiccmp.org > > To subscribe or unsubscribe via email, send a message with subject or > body 'help' to > cctalk-request(a)classiccmp.org > > You can reach the person managing the list at > cctalk-owner(a)classiccmp.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of cctalk digest..." > > Today's Topics: > > 1. Re: Saturn-Calc (Mark Matlock) > 2. Restoring unknown format backup tapes (John Herron) > 3. Re: cctalk Digest, Vol 147, Issue 1 (Malcolm Macleod) > 4. Re: Restoring unknown format backup tapes (Chuck Guzis) > 5. Re: Restoring unknown format backup tapes (Bill Degnan) > 6. Re: Restoring unknown format backup tapes (John-Paul Stewart) > 7. Re: Saturn-Calc (Kenneth Gober) > 8. Re: Restoring unknown format backup tapes (Chuck Guzis) > 9. Re: SGI vs. Mac (Christian Liendo) > 10. Re: Saturn-Calc (Chris Zach) > 11. How to print old files. (ben) > 12. Re: How to print old files. (Hugh Pyle) > 13. Re: How to print old files. (Scott LaBombard) > 14. Re: Manual for MDB MLSI-LP11 (Douglas Taylor) > 15. Re: Saturn-Calc (Douglas Taylor) > 16. Re: Saturn-Calc (Bill Gunshannon) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 30 Dec 2022 13:40:38 -0600 > From: Mark Matlock <mark(a)matlockfamily.com> > Subject: [cctalk] Re: Saturn-Calc > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> > Message-ID: <20082909-144D-498A-A264-51CB187B9325(a)matlockfamily.com> > Content-Type: text/plain; charset=utf-8 > > > > On Dec 30, 2022, at 12:00 PM, cctalk-request(a)classiccmp.org wrote: > > > > Hi all, > > > > My 11/73 restoration has got to the point that I am loading stuff from RT11 backups, and I have a lot of Saturn-calc and wp data that I would like to see again. My licensed copy and the manual are long gone! > > > > I downloaded some RX02 images posted by Mark Matlock, but the disks appear to be all zeroes where I expect the directory to be. > > > > Does anybody know of a source? > > > > cheers, > > > > Nigel > > Nigel, > I’ve been trying to find a working distribution for PDP-11 Saturn-Calc and Graph for some years now. I had a licensed copy many years ago for RSX11M but it no longer works. I do have a working copy of Saturn-Calc and Graph (but not WP) for VMS on my MV3100-80 but not the VMS distribution. > > I have managed to contact the lead programmer that developed Saturn’s software through a former president of the company. The programmer believes he has a copy of the source code for PDP-11 and VAX on a CDROM that is in a storage unit. He has retired overseas and come back home where the storage unit is a couple times a year and I’m hoping he can find the CDROM on his next trip back. I can keep you posted on our progress in trying to recover this software. It helps that the programmer is interested in making the Saturn products available as it may need to be recompiled or at least relinked to be compatible with the newest versions of PDP-11 operating systems with Y2K etc. > > We thought we had it recovered a couple years ago when nine RX50 floppies were found in Australia that were from a distributor that could be used to generate new customer distributions, but there was no documentation and some info was missing. Also, manuals for the Saturn products have not been scanned so we are looking for them as well. > > If you had some specific Saturn Calc spreadsheets that you wanted data extracted from, I might be able to help you with my working VMS version of Calc. Saturn Calc was a great product that we used a great deal back in the day. The Saturn Graph product supported VT340s with the mouse and could generate plots a wide variety of HP and other plotters, printers, etc. > > Best Regards, > Mark > > > > ------------------------------ > > Message: 2 > Date: Fri, 30 Dec 2022 14:17:40 -0600 > From: John Herron <barythrin(a)gmail.com> > Subject: [cctalk] Restoring unknown format backup tapes > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> > Message-ID: > <CAEOGs+jg=e6d4NQVz3+sn61Zw3naJXAWoP0SWyGfBg=N2N+kpw(a)mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > 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. > > ------------------------------ > > Message: 3 > Date: Sat, 31 Dec 2022 08:49:35 +1100 > From: "Malcolm Macleod" <malcolm(a)avitech.com.au> > Subject: [cctalk] Re: cctalk Digest, Vol 147, Issue 1 > To: <g4ajq1(a)gmail.com> > Cc: cctalk(a)classiccmp.org > Message-ID: <0edb01d91c98$9d4d8410$d7e88c30$(a)avitech.com.au> > Content-Type: text/plain; charset="us-ascii" > > > >Message: 4 > >Date: Fri, 30 Dec 2022 07:23:28 -0500 > >From: Nigel Johnson Ham <g4ajq1(a)gmail.com> > >Subject: [cctalk] Saturn-Calc > >To: cctalk <cctalk(a)classiccmp.org> > >Message-ID: <4c5f94c9-7406-f409-cbee-0fb6299618ac(a)gmail.com> > >Content-Type: text/plain; charset=UTF-8; format=flowed > > > >Hi all, > > > >My 11/73 restoration has got to the point that I am loading stuff from > >RT11 backups, and I have a lot of Saturn-calc and wp data that I would like > to see again. My licensed copy and the manual are long gone! > > > >I downloaded some RX02 images posted by Mark Matlock, but the disks appear > to be all zeroes where I expect the directory to be. > > > >Does anybody know of a source? > > > >cheers, > > > >Nigel > > Hi Nigel, > > I have what appears to be a complete set of RX50 disks for CAL, WPS and GRF. > > Images are here -> http://avitech.com.au/?page_id=2570 > > I haven't tried them. > > Regards, > Malcolm > > > > ------------------------------ > > Message: 4 > Date: Fri, 30 Dec 2022 17:01:35 -0800 > From: Chuck Guzis <cclist(a)sydex.com> > Subject: [cctalk] Re: Restoring unknown format backup tapes > To: John Herron via cctalk <cctalk(a)classiccmp.org> > Message-ID: <67281402-437f-ebdf-777b-2f8006e751e3(a)sydex.com> > Content-Type: text/plain; charset=UTF-8 > > On 12/30/22 12:17, John Herron via cctalk wrote: > > 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. > The tape substrate itself, being mylar, is very durable, but it's toast > if stretched. Most likely, the internal tension band has either gone > slack or has broken and should be replaced, or else tape tangles can > result. Most importantly, details are necessary (what kind of carts, > what drive manufacturer and model, etc.) There are lots of potential > variations. To be frank, I hate the damned stuff. > > --Chuck > > > -- > --Chuck > > Sent from my digital computer > > ------------------------------ > > Message: 5 > Date: Fri, 30 Dec 2022 20:37:01 -0500 > From: Bill Degnan <billdegnan(a)gmail.com> > Subject: [cctalk] Re: Restoring unknown format backup tapes > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> > Message-ID: > <CABGJBuds2rt87icXc0qNmT1iosW0Bz1Jcn6OCXjFnEr_3kQ52A(a)mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > THere were certain tape manufacturers and plastic/metal clip marks and wear > patters that were typical of certain types of drives reading certain types > of tapes. Maybe high resolution photos of a few used tapes will reveal > clues. A tape ejected 30 times will have certain patterns of wear in > certain places. I have lots of different types of tapes, I am happy to > compare your used tape photos with anything I might have that would be > similar. > Not a guaranteed solution, but it might help narrow down candidate systems. > Bill > > On Fri, Dec 30, 2022 at 8:01 PM Chuck Guzis via cctalk < > cctalk(a)classiccmp.org> wrote: > > > On 12/30/22 12:17, John Herron via cctalk wrote: > > > 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. > > The tape substrate itself, being mylar, is very durable, but it's toast > > if stretched. Most likely, the internal tension band has either gone > > slack or has broken and should be replaced, or else tape tangles can > > result. Most importantly, details are necessary (what kind of carts, > > what drive manufacturer and model, etc.) There are lots of potential > > variations. To be frank, I hate the damned stuff. > > > > --Chuck > > > > > > -- > > --Chuck > > > > Sent from my digital computer > > > > ------------------------------ > > Message: 6 > Date: Fri, 30 Dec 2022 20:02:37 -0500 > From: John-Paul Stewart <jpstewart(a)personalprojects.net> > Subject: [cctalk] Re: Restoring unknown format backup tapes > To: cctalk(a)classiccmp.org > Message-ID: > <dc496dec-d5f3-a71a-ce7c-a808488e062e(a)personalprojects.net> > Content-Type: text/plain; charset=UTF-8 > > On 12/30/22 15:17, John Herron via cctalk wrote: > > 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? > > It is unlikely that the tapes are in tar format, so tar on Linux won't > help. The chance that they are in tar format is much higher if they're > from Amix (Amiga Unix) instead of AmigaOS. > > There is a better possibility that the tapes were created by BRU since > AmigaOS 2.x (and maybe later) included a version of that. BRU is now > Argest Backup, if you need to go down that road. > > It is also possible that the tapes were created with any of the many > third-party backup applications that existed for AmigaOS. > > In any case, using dd (not tar) on Linux to copy the tapes to disk to > "interpret" and "sort out files afterwards" is at least a starting point. > > Other list members are better qualified to comment on the physical > aspects of doing that without destroying the fragile old tapes. > > ------------------------------ > > Message: 7 > Date: Fri, 30 Dec 2022 21:03:37 -0500 > From: Kenneth Gober <kgober(a)gmail.com> > Subject: [cctalk] Re: Saturn-Calc > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> > Message-ID: > <CANHrbpei_uoTLKAF8a9Et_gBrXXJjsTZnsKoZDzhguHTvPFMFA(a)mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > On Fri, Dec 30, 2022 at 7:23 AM Nigel Johnson Ham via cctalk < > cctalk(a)classiccmp.org> wrote: > > > I downloaded some RX02 images posted by Mark Matlock, but the disks > > appear to be all zeroes where I expect the directory to be. > > > > Is it possible the images are 'physical' disk images rather than 'logical' > disk images and have > sector interleaving applied? That can cause things to appear in odd places. > > -ken > > ------------------------------ > > Message: 8 > Date: Fri, 30 Dec 2022 18:04:06 -0800 > From: Chuck Guzis <cclist(a)sydex.com> > Subject: [cctalk] Re: Restoring unknown format backup tapes > To: Bill Degnan via cctalk <cctalk(a)classiccmp.org> > Message-ID: <46b41622-ce30-28f7-5357-ea2623bda12b(a)sydex.com> > Content-Type: text/plain; charset=UTF-8 > > On 12/30/22 17:37, Bill Degnan via cctalk wrote: > > THere were certain tape manufacturers and plastic/metal clip marks and wear > > patters that were typical of certain types of drives reading certain types > > of tapes. Maybe high resolution photos of a few used tapes will reveal > > clues. A tape ejected 30 times will have certain patterns of wear in > > certain places. I have lots of different types of tapes, I am happy to > > compare your used tape photos with anything I might have that would be > > similar. > > Not a guaranteed solution, but it might help narrow down candidate systems. > > Bill > > > Heck, I'd just unspool a bit of the stuff, drop some Kyread on it and > have a gander with the old microscope. That can at least tell me how > many tracks are involved. > > But being a quarter-inch cartridge leaves a lot of ground open. For > instance, what if these tapes are Iotaamat-formatted? A regular QIC > drive will have nothing to do with them. There were other manufacturers > (Cipher 525) comes to mind that do not use standard formatting > techniques. On some of the later 8mm Travan carts, the tape is > will-o'-the-wisp thin. > > FWIW, > Chuck > > > > > ------------------------------ > > Message: 9 > Date: Fri, 30 Dec 2022 22:48:23 -0500 > From: Christian Liendo <cliendo(a)gmail.com> > Subject: [cctalk] Re: SGI vs. Mac > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> > Cc: skogkatt007(a)yahoo.com > Message-ID: > <CAA9iAfuBwoa7+MkU=zU64ktOoQKA5Cx6KAFVM0vMqrL7W7+aCQ(a)mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > I went to Onyx2/Origin 2000 training in Mountain View in the building that > is now the Computer History Museum and I met a lot of Gov folks but I also > met a lot of oil people who used SGIs to crunch data. At the time no one > could touch them but that too changed > > As for workstations the one I remember being a real competitor was > Intergraph. They had dual pentium pro boxes with proprietary cards that ran > NT and Softimage. Microsoft bought Softimage to compete with SGI and SGI > bought Alias Wavefront > > On Sat, Dec 24, 2022, 4:15 PM Ethan O'Toole via cctalk < > cctalk(a)classiccmp.org> wrote: > > > > > Really without the US government as a customer I wonder how many of these > > companies could have made it on industry alone. > > > > - Ethan > > > > ------------------------------ > > Message: 10 > Date: Fri, 30 Dec 2022 23:44:03 -0500 > From: Chris Zach <cz(a)alembic.crystel.com> > Subject: [cctalk] Re: Saturn-Calc > To: cctalk(a)classiccmp.org > Message-ID: <f8b7c3ed-3b2c-1cbd-352e-5a683d697610(a)alembic.crystel.com> > Content-Type: text/plain; charset=UTF-8; format=flowed > > I think I have TSX/RX02 versions of Saturn stuff out there already. > Where is it.... > > Ah here: https://www.crystel.com/pdp/ > > Wow, I have a dsm11 disk image there too? Weird. And the XT Tool kit > guide (prior to when it was called the Pro/350). > > Let me know if those contain anything interesting. > > Chris > > On 12/30/2022 9:03 PM, Kenneth Gober via cctalk wrote: > > On Fri, Dec 30, 2022 at 7:23 AM Nigel Johnson Ham via cctalk < > > cctalk(a)classiccmp.org> wrote: > > > >> I downloaded some RX02 images posted by Mark Matlock, but the disks > >> appear to be all zeroes where I expect the directory to be. > >> > > Is it possible the images are 'physical' disk images rather than 'logical' > > disk images and have > > sector interleaving applied? That can cause things to appear in odd > > places. > > > > -ken > > ------------------------------ > > Message: 11 > Date: Sat, 31 Dec 2022 02:00:22 -0700 > From: ben <bfranchuk(a)jetnet.ab.ca> > Subject: [cctalk] How to print old files. > To: cctalk(a)classiccmp.org > Message-ID: <77511893-b967-7349-2bb0-a6d0f7af2905(a)jetnet.ab.ca> > Content-Type: text/plain; charset=UTF-8; format=flowed > > How do you print old files in ASCII 63 to modern devices, so you keep > the ← and ↑ 's > > and not printing _ and ^ ? > > Ben. > > > > > > > ------------------------------ > > Message: 12 > Date: Sat, 31 Dec 2022 09:33:35 -0500 > From: Hugh Pyle <hpyle(a)cabezal.com> > Subject: [cctalk] Re: How to print old files. > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> > Message-ID: > <CALvn94+WB5mOiNSer6Gsm2t-2=wUnFoTg9Hi7tXZv6m2VZEAmw(a)mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > There's a 'Teleprinter' font, which is close, but doesn't include the > backward arrow: > https://web.archive.org/web/20000819043545/ourworld.compuserve.com/homepage… > > > > On Sat, Dec 31, 2022 at 4:00 AM ben via cctalk <cctalk(a)classiccmp.org> > wrote: > > > How do you print old files in ASCII 63 to modern devices, so you keep > > the ← and ↑ 's > > > > and not printing _ and ^ ? > > > > Ben. > > > > > > > > > > > > > > ------------------------------ > > Message: 13 > Date: Sat, 31 Dec 2022 14:56:24 +0000 (UTC) > From: Scott LaBombard <labomb_s(a)yahoo.com> > Subject: [cctalk] Re: How to print old files. > To: ben via cctalk <cctalk(a)classiccmp.org> > Message-ID: <1139967668.3339176.1672498584861(a)mail.yahoo.com> > Content-Type: text/plain; charset=UTF-8 > > I remember having to do something like that some years ago. If the ASCII file isn't too long and you can manage with manual edits, you can load the document into an editor that supports 'alt' codes. On Windows, I just tried Microsoft Word. > Hold the alt key down and enter the 2-digit code (on the numeric keypad) for the symbol you wish... ↑ is 24, and ← is 27. Just did a quick test and both printed fine on my HP printer, although as I recall the resulting symbols didn't look quite like the arrows in the original document. > On Saturday, December 31, 2022 at 04:00:33 AM EST, ben via cctalk <cctalk(a)classiccmp.org> wrote: > > How do you print old files in ASCII 63 to modern devices, so you keep > the ← and ↑ 's > > and not printing _ and ^ ? > > Ben. > > > > > > > > ------------------------------ > > Message: 14 > Date: Sat, 31 Dec 2022 11:23:57 -0500 > From: Douglas Taylor <dj.taylor4(a)comcast.net> > Subject: [cctalk] Re: Manual for MDB MLSI-LP11 > To: Nigel Johnson Ham via cctalk <cctalk(a)classiccmp.org> > Message-ID: <1903bca7-bf1c-a1b6-fbd7-b33498ba7412(a)comcast.net> > Content-Type: text/plain; charset=UTF-8; format=flowed > > On 12/29/2022 9:33 AM, Nigel Johnson Ham via cctalk wrote: > > My re-build of a BA23 11/73 system continues. I have one of these MDB > > printer controllers but cannot make it do anything more that home page > > on the laser using RT-11 > > > > Does anybody have a manual or know where I can download one. > > > > An extensive search using google just brings up a data sheet. > > > > Happy New Year to all, > > > > Nigel > > > > > I remember having a 11/03 system at work back in 1984 that had an > attached printer with what looked like an ordinary parallel printer > connector. However, the signal protocols for the printer interface were > different than the standard parallel interface everyone was using on > their PC's. I think they were close but you needed a printer that > understood the DEC protocols. Shouldn't be surprising to anyone from > that era. > > Doug > > > ------------------------------ > > Message: 15 > Date: Sat, 31 Dec 2022 11:28:25 -0500 > From: Douglas Taylor <dj.taylor4(a)comcast.net> > Subject: [cctalk] Re: Saturn-Calc > To: Nigel Johnson Ham via cctalk <cctalk(a)classiccmp.org> > Message-ID: <35185fa8-dc89-5a1d-a7f8-a17e7a6f3c6f(a)comcast.net> > Content-Type: text/plain; charset=UTF-8; format=flowed > > On 12/30/2022 7:23 AM, Nigel Johnson Ham via cctalk wrote: > > Hi all, > > > > My 11/73 restoration has got to the point that I am loading stuff from > > RT11 backups, and I have a lot of Saturn-calc and wp data that I would > > like to see again. My licensed copy and the manual are long gone! > > > > I downloaded some RX02 images posted by Mark Matlock, but the disks > > appear to be all zeroes where I expect the directory to be. > > > > Does anybody know of a source? > > > > cheers, > > > > Nigel > > > > > I have some DEC format 8 inch floppies from the mid 1980's that may have > Saturn WP on it. It rings a bell, I think I had a copy at one time. > Long, long time ago. I can't read the floppies (got no drive), anyone > in the Wash DC area that can read them would help. > > Doug > > > ------------------------------ > > Message: 16 > Date: Sat, 31 Dec 2022 11:39:04 -0500 > From: Bill Gunshannon <bill.gunshannon(a)hotmail.com> > Subject: [cctalk] Re: Saturn-Calc > To: cctalk(a)classiccmp.org > Message-ID: <DM6PR06MB5580AAB10CA87FC8FAA4DF21EDF19(a)DM6PR06MB5580.nam > prd06.prod.outlook.com> > Content-Type: text/plain; charset=UTF-8; format=flowed > > On 12/31/22 11:28, Douglas Taylor via cctalk wrote: > > On 12/30/2022 7:23 AM, Nigel Johnson Ham via cctalk wrote: > >> Hi all, > >> > >> My 11/73 restoration has got to the point that I am loading stuff from > >> RT11 backups, and I have a lot of Saturn-calc and wp data that I would > >> like to see again. My licensed copy and the manual are long gone! > >> > >> I downloaded some RX02 images posted by Mark Matlock, but the disks > >> appear to be all zeroes where I expect the directory to be. > >> > >> Does anybody know of a source? > >> > >> cheers, > >> > >> Nigel > >> > >> > > I have some DEC format 8 inch floppies from the mid 1980's that may have > > Saturn WP on it. It rings a bell, I think I had a copy at one time. > > Long, long time ago. I can't read the floppies (got no drive), anyone > > in the Wash DC area that can read them would help. > > Tim Shoppa? > > bill > > > > End of cctalk Digest, Vol 148, Issue 1 > **************************************

2 years, 7 months

2
1
0 0

Saturn-Calc

by Nigel Johnson Ham

Hi all, My 11/73 restoration has got to the point that I am loading stuff from RT11 backups, and I have a lot of Saturn-calc and wp data that I would like to see again. My licensed copy and the manual are long gone! I downloaded some RX02 images posted by Mark Matlock, but the disks appear to be all zeroes where I expect the directory to be. Does anybody know of a source? cheers, Nigel -- Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU Amateur Radio, the origin of the open-source concept! Skype: TILBURY2591

2 years, 7 months

6
6
0 0

Manual for MDB MLSI-LP11

by Nigel Johnson Ham

My re-build of a BA23 11/73 system continues. I have one of these MDB printer controllers but cannot make it do anything more that home page on the laser using RT-11 Does anybody have a manual or know where I can download one. An extensive search using google just brings up a data sheet. Happy New Year to all, Nigel -- Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU Amateur Radio, the origin of the open-source concept! Skype: TILBURY2591

2 years, 7 months

2
1
0 0

SGI vs. Mac

by skogkatt007＠yahoo.com

An Indy for instance, is it much faster then a similarly clocked PowerMac? What about an Indigo 2 IMPACT 10000. Does that blow most PMs away? Anyone using an I2 or Indy with regularity? I have a purple box somewhere. I foumd the teal boxes much more visually appealing.

2 years, 7 months

9
13
0 0

Re: cctalk Digest, Vol 147, Issue 1

by Malcolm Macleod

>Message: 4 >Date: Fri, 30 Dec 2022 07:23:28 -0500 >From: Nigel Johnson Ham <g4ajq1(a)gmail.com> >Subject: [cctalk] Saturn-Calc >To: cctalk <cctalk(a)classiccmp.org> >Message-ID: <4c5f94c9-7406-f409-cbee-0fb6299618ac(a)gmail.com> >Content-Type: text/plain; charset=UTF-8; format=flowed > >Hi all, > >My 11/73 restoration has got to the point that I am loading stuff from >RT11 backups, and I have a lot of Saturn-calc and wp data that I would like to see again. My licensed copy and the manual are long gone! > >I downloaded some RX02 images posted by Mark Matlock, but the disks appear to be all zeroes where I expect the directory to be. > >Does anybody know of a source? > >cheers, > >Nigel Hi Nigel, I have what appears to be a complete set of RX50 disks for CAL, WPS and GRF. Images are here -> http://avitech.com.au/?page_id=2570 I haven't tried them. Regards, Malcolm

2 years, 7 months

1
0
0 0

Re: Saturn-Calc

by Mark Matlock

> On Dec 30, 2022, at 12:00 PM, cctalk-request(a)classiccmp.org wrote: > > Hi all, > > My 11/73 restoration has got to the point that I am loading stuff from RT11 backups, and I have a lot of Saturn-calc and wp data that I would like to see again. My licensed copy and the manual are long gone! > > I downloaded some RX02 images posted by Mark Matlock, but the disks appear to be all zeroes where I expect the directory to be. > > Does anybody know of a source? > > cheers, > > Nigel Nigel, I’ve been trying to find a working distribution for PDP-11 Saturn-Calc and Graph for some years now. I had a licensed copy many years ago for RSX11M but it no longer works. I do have a working copy of Saturn-Calc and Graph (but not WP) for VMS on my MV3100-80 but not the VMS distribution. I have managed to contact the lead programmer that developed Saturn’s software through a former president of the company. The programmer believes he has a copy of the source code for PDP-11 and VAX on a CDROM that is in a storage unit. He has retired overseas and come back home where the storage unit is a couple times a year and I’m hoping he can find the CDROM on his next trip back. I can keep you posted on our progress in trying to recover this software. It helps that the programmer is interested in making the Saturn products available as it may need to be recompiled or at least relinked to be compatible with the newest versions of PDP-11 operating systems with Y2K etc. We thought we had it recovered a couple years ago when nine RX50 floppies were found in Australia that were from a distributor that could be used to generate new customer distributions, but there was no documentation and some info was missing. Also, manuals for the Saturn products have not been scanned so we are looking for them as well. If you had some specific Saturn Calc spreadsheets that you wanted data extracted from, I might be able to help you with my working VMS version of Calc. Saturn Calc was a great product that we used a great deal back in the day. The Saturn Graph product supported VT340s with the mouse and could generate plots a wide variety of HP and other plotters, printers, etc. Best Regards, Mark

2 years, 7 months

1
0
0 0

wtb: Panasonic 15" TTL (5151 compattible) open frame monitor

by skogkatt007＠yahoo.com

Send an email please.

2 years, 7 months

1
0
0 0

fs: Panasonic/Matsushita 9" open frame monitor

by skogkatt007＠yahoo.com

40$ + usps. New in battered box. Apparently this is monochrome and composite (ntsc). It will require a wired connector, or simply soldering wires to a 1 sided card edge connection. Also requires an external 12vdc 1amp supply. A few components are required, potentiometer, 3 diodes, and a resistor if you want graphics. Best done by someone with prior wirimg/soldering experience, but not much. As is, final sale. Check or m.o. Ships from 08758.

2 years, 7 months

1
0
0 0

wtb: mainly Intel branded 80x86 based Multibus boards

by skogkatt007＠yahoo.com

And if Jonas (Stynx) from Germany is on here, please send me an e-mail. I'll reply to private e-mails only (from anyone).

2 years, 7 months

1
0
0 0

PT-68K

by skogkatt007＠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.

2 years, 7 months

10
35
0 0

imd2raw.c correction - linearizing ImageDisk images

by David Schmidt

There have been a few versions of the utility imd2raw.c floating around that will take Dave Dunfield's ImageDisk-created images (i.e. an .IMD file) and make a linear binary image devoid of any metadata. This is similar to the function of Dave's IMDU.COM program's /b switch. I've corrected a problem with the assumption that all imd2raw.c descendants to date have made: sectors that have a skew (i.e. not 1-1 interleaved) weren't linearized correctly. The skewed sectors need to be written out in "sorted" order, which is not necessarily captured/physical order. This is easily verified by comparing output from "IMDU /b" to earlier imd2raw outputs on any .IMD that has a sector skew that isn't 1, 2, 3 [...]. It's up on github here: https://github.com/RetroFloppy/imd2raw

2 years, 7 months

3
5
0 0

best C compiler(s) for varied vintage programming

by skogkatt007＠yahoo.com

It cannot rely on bios/ms-dos services for compiling preferably. Iow I'd like to perform what I want to do on the target machine itself, LOL which is hysterical as I've never even seen it boot even once. I could complie on a standard pc I suppose and pop a disk in the Northstar Dimension. It would be nice if it's optimized for it's 80186. Or at least supports it's instructions. My goal is to get MINIX running on it, as the original Netware-86 OS has proven to be more rare then really anything else. From there I'd like to figure out how to support the pc compatible (or so we're told) logic boards that are plugged into the motherboard like standard isa cards, and even have 34 contacts on their card edge. It would be nice if someone had the ideal compiler package they don't need and could sell.

2 years, 7 months

11
28
0 0

Searching for Cisco Catalyst 3920 Token Ring switch firmware

by John P. Willis

Hello all, As the subject implies, I'm on a search for Cisco Catalyst 3920 Token Ring switch firmware. AFAIK, these units are actually from a company Cisco acquired. They definitely don't run IOS or CatOS, and have an odd full-screen interactive menu interface. It worked when I received it, but after a power outage, the firmware got corrupted, leaving all interfaces effectively dead. It seems that there is no official way to get a copy of the image from a working unit, either, as I've had people attempt it. The general naming pattern is supposedly cat3900-main-gz.x-y-z.bin, where [I believe] x, y, and z would represent some sort of version information. If anyone has this file, or any leads as to where I might find it, I'd be forever grateful. Apparently, even Cisco employees cannot find it nowadays. Thanks much, jpw

2 years, 7 months

1
0
0 0

Re: Searching for a few good TI Silent 700 parts

by Charles

In fact it is a 745 :) If the printhead has all its pixels working, I'd like to buy it. No keyboard at all, or just nonfunctional? Those particular keyswitches seem to be unobtainium nowadays... thanks Charles On 12/24/22 12:00, cctalk-request(a)classiccmp.org wrote: > Message: 2 > Date: Fri, 23 Dec 2022 10:56:19 -0800 > From: Sellam Abraham<sellam.ismail(a)gmail.com> > Subject: [cctalk] Re: Searching for a few good TI Silent 700 parts > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> > Message-ID: > <CAHJBWnT0UF8_89CO8FN8g3Bdo63OskjkZPoF9WEODNXEwdpFgw(a)mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > Hi Charles. > > Which specific model? > > I have a 745 sans keyboard that can be parted out further. > > Sellam > > On Fri, Dec 23, 2022, 10:54 AM Charles via cctalk<cctalk(a)classiccmp.org> > wrote: > >> I have a Silent 700 terminal that only needs a printhead (several >> missing pixels on mine) and three keyswitches (I have the keytops so it >> doesn't matter which ones). >> >> My other 700 is fully functional and it'd be nice to finish fixing the >> other one too! Can anyone help? >> >> thanks >> >> Charles >> >>

2 years, 7 months

3
2
0 0

Replacing NiCd with NiMH in a pro way.

by Cedric Amand

Hey everyone, No - I won't ask if this is on topic or not :) I'm currently reparing an ALPS plotter ( a Tandy "ce 150" equivalent ) and it's not the first time I face the same problem ; how to replace NiCD batteries. In the past what I did is actually order new NiCd ( you can still find them here in Europe, well actually out of europe but in eastern countries close to europe ) However they are at best NOS nowadays, that does "work" enough for moderate use (I've done that on vintage laptops) This time I'd like to go a bit beyond that and replace the NiCd with modern NiMH (the plotter coils and motors will benefit the extra power) However the trickle chagre of NiCd applied to NiMH will either kill my batteries or kill me in a house fire. I see small $1 NiMH 5S charging boards on Aliexpress, I thought I might use that, try to shove it it the CE150 (or other devcies with the same problem) TL-DR : Before I re invent the wheel here ; Has anyone developed a proper way to replace NiCd with N iMH in vintage (mostly portable) equipment ? And I mean not simply swapping the batteries, I don't want that, I want a proper charge process.

2 years, 7 months

10
18
0 0

Toronto CompuFest ads

by Ryan de Laplante

I remember seeing full page CompuFest ads in the Toronto Star back around 1996-1997. CompuFest was one of the highlights of the year for me and I tried to go every year with friends. Has anyone ever seen one of those old ads online anywhere? Or maybe you have a newspaper or magazine with the ad that I might be able to buy from you? obsol33t

2 years, 7 months

1
0
0 0

Searching for a few good TI Silent 700 parts

by Charles

I have a Silent 700 terminal that only needs a printhead (several missing pixels on mine) and three keyswitches (I have the keytops so it doesn't matter which ones). My other 700 is fully functional and it'd be nice to finish fixing the other one too! Can anyone help? thanks Charles

2 years, 7 months

2
1
0 0

pc magazine Nov 1983

by Steve Lewis

Does anyone have a November 1983 issue of PC Magazine? I did find one on eBay, but it apparently got lost in transit during recent storms. That issue has been digitally archived https://archive.org/details/PC-Mag-1983-11/ But I was hoping to come across a physical copy. Thanks!

2 years, 7 months

2
1
0 0

looking for a laptop

by skogkatt007＠yahoo.com

Anyone partimg with some dang-old thing? It has to work. I'm leaning towards a mono screen. I'm leaning against Zeniths, got 2 Minisports. But anything is possible. IBM produced a Kanji subbish laptop some years ago. I want to say it had a 286. Anyone know?

2 years, 7 months

2
1
0 0

Re: DLV11 M7940 SLU header wire colours?

by steven＠malikoff.com

Thank you Martin and Fritz for figuring out the DLV11 wiring colours, that's exactly what I needed and I appreciate it very much! Also there is a lot that I hadn't looked at before in those links, much appreciated. Certainly hadn't considered the wire gauge size too critically but I'll use what I've got for starters. Chasing up the BC0n cable details led me to Malcolm/Avitech's BC01 cable page, which also helps. I hope to power it up before Christmas, fingers crossed the M7270 and M8044 boards work. I have yet to check the jumpers on these. I can relate to the locomotive paint story in a way. I have an old WWII jeep, and rivet counters obsess over the _exact_ shade of WWII Olive Drab paint. This is exacerbated by most WWII film being black and white, and period colour film may not be regarded as perfect (although George Stevens' WWII footage on Kodachrome might come close) so finding good unfaded/undamaged paint examples isn't always easy. Now I had someone tell me they really thought my jeep was a great match to "real" OD, to which I replied that I had actually painted it in Khaki, which is closer to a brown than a green. Being a completely flat paint, when it's wet it temporarily changes appearance to gloss dark green. So I just say to people not to worry too much and the OD paint they use is bound to match exactly to at least one of the ~650,000 jeeps produced. Thanks cctalk list, wishing you all ice-cold Chrissie beers and barbie (Oz BBQ) for the season, Steve

2 years, 7 months

1
0
0 0

painting computer cases

by skogkatt007＠yahoo.com

I must have asked numerous times on numerous forums how this is done. Did you ever take a close look at the paint on a 5150 or 5170 (or hell even any IBM monitors that are age appropriate, but those aren't metal). Did you notive the wormy, orange pealy finish. I don't think anyone has seriously attempted to explain how to accomplish that. It's not simply a sligjtly gritty texture as in the case of modern atx cases, that can be done with a spray can, sort of. Do they simply cause the spray gun to spit on the final coat, perhaps while the previous coat is still tacky?

2 years, 7 months

5
17
0 0

Using Gesswein board with RQDX3

by Nigel Johnson Ham

Merry Christmas, everybody, I am trying to do the above. ZRQC comes up and says four drives of unknown type. Has anybody done this? I figure there must be a configuration that needs to be done, but found nothing in the documentation to do it. cheers, Nigel Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU Amateur Radio, the origin of the open-source concept! Skype: TILBURY2591

2 years, 7 months

4
3
0 0

Re: what is on topic?

by Marvin Johnston

After all is said and done, my observations since the time this listserver was up in Washington is that anything OT has a very short "shelf life." That would suggest most people here have a working brain and thus, like the definition of pornography, they know OT when they see it. A long way of saying OT or not is being well served by the choice of most people here on what they post... with the exception of the waaay too long discussion, Re: what is on topic?, currently taking place.

2 years, 7 months

4
3
0 0

DLV11 M7940 SLU header wire colours?

by steven＠malikoff.com

Sorry this post isn't about whether something is regarded as classic or not. I am almost done putting together a little 4-card Qbus machine using a H9281-BA card frame. Eschewing a piece of plywood, the frame, power supply, fans, Heeltoe POR board are all mounted on a clear acrylic A4-sized office 'In Tray' I picked up at a recycling centre. Hence I've named it PERSPEX-11 :) So.. For a DLV11 EIA serial connection, I am about to wire up a fly lead cable to go from an M7940 SLU (no dash version) 40-pin header to a DB25P. After finding the pinout on page 178 in the 1980 Interfaces Handbook, on header J1 I know only need the usual basic RS232 setup: J - Received Data F - Transmitted Data B - Signal Ground M to E loopback I have a blank 40-pin header shell and a pile of DuPont leads of all colours ready to slot into their respective locations in the header. I could use any colours but I'd really like to use the original colours for the above wires. So, the only wire colour reference in the handbook is for a J1 and J2 header DRV11 pinout on page 275. Pin B is Black, and Transmit is Red but Pin J Receive is marked as Orange/Ground, for that device. Also M and E don't have their colours specified for the loopback wire. I've also looked at the Gunkies 'DEC asynchronous serial line pinout' page which has the pinout but it doesn't mention the original wire colours sadly. Could someone point me to what colours the M7940 cable should be? Thanks for any help, Steve.

2 years, 7 months

3
2
0 0

"Classic" RAM chips, #FREE, #RARE, #VINTAGE

by wrcooke＠wrcooke.net

I think my original message didn't go through (forgot to select plain text instead of html.) If it did I apologize for spamming the list. I'm clearing out some clutter so I can get to some more clutter to clear it out. Much of my clutter is classic computer related (at least by my definition.) But it needs to go. I have an assortment of old dynamic RAM chips: 1M x 1 approx 35 256K x 4 approx 40 to 50 256K x 1 approx 80 to 100 They are various speeds, mostly between 100ns and 150 ns If anyone wants them, let me know. You pay shipping. Otherwise they go to the landfill. You can contact me off-list. Will I do not think you can name many great inventions that have been made by married men. Nikola Tesla

2 years, 7 months

2
4
0 0

unpleasant odor from VT100

by hush hush

i have a VT100 that is working fine (powers on, navigates setup, saves/restores settings, etc) but has an unpleasant burning/ozone odor coming from the rear of it. i suspect something is running hot but i am not sure what, i do not currently have an IR camera in my hands- working on that. the original power supply has failed and is currently in storage, so the terminal is being powered by an ATX power supply and adapter board for the time being. this eliminates the usual R27 as being the culprit. as best i can tell, the smell is strongest just above the power distribution board, around the neck of the CRT. appreciate any suggestions you might have!

2 years, 7 months

5
6
0 0

Win2K+3 on a Dell Poweredge 2600

by skogkatt007＠yahoo.com

This beast was given to me by a neighbor. Dual socket 604. Windows 2003 in some RAID configuration. I understand (or used to understand) RAID levels somewhat. But iinm he tells me the OS is "split" over 6 scsi drives. Not getting this, but I don't need all the redundancy/striping. I want it all on 1 drive. What to use to image what comstitutes 1 volume I guess. Norton Ghost? I have an extra scsi drive, I can always restore the image to the 1 drive (yes?), before or without alterimg the currently embedded stack. This thing is heavy. I secured a copy of the Corel Linux Starter Kit and want to load it into the Poweredge. For chips and pringles. I have other pre uefi boxes around but this is lying dormant. And 6 drives for my purposes is stupid. And heavy.

2 years, 7 months

7
8
0 0

what is on topic?

by skogkatt007＠yahoo.com

Specifically as pertaining to old/vintage/classic/retro compuing discussion, what exactly is on topic? On top of my head as a for imstance I have some questions pertaining to Windows 2003 and socket 603/604. Something tells me that doesn't qualify, so it behooves me to ask.

2 years, 7 months

34
104
0 0

BSD 2.11 on the DEC PRO

by Cameron Kaiser

My PRO 380 runs Venix/PRO. Which is cool, but someone sent me this: https://www.frijid.net/blog/index.php/2015/06/07/182/ Allegedly this gets BSD 2.9 on, at least, the PRO 350. I'm particularly interested because it supports networking. Anyone tried this on their PRO? Or better still, an actual 380? -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser(a)floodgap.com -- Male Macintosh geeks are so predictable. All we think about is X. ----------

2 years, 7 months

2
1
0 0

Digests?

by Bill Gunshannon

Why have I started receiving virtually unreadable digests all of a sudden? I have made no changes to my preferences. bill

2 years, 7 months

1
0
0 0

Re: pc magazine Nov 1983

by Smith, Wayne

Great article on SCAMP - thanks for posting the link! -W Date: Sat, 17 Dec 2022 17:50:46 -0600 From: Steve Lewis <lewissa78(a)gmail.com> Subject: [cctalk] pc magazine Nov 1983 To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Message-ID: <CACG-qZzseNpof-zyRfomOgisB=3zf+BN6BhSrATbWA_SvoVN7g(a)mail.gmail.com> Content-Type: text/plain; charset="UTF-8" Does anyone have a November 1983 issue of PC Magazine? I did find one on eBay, but it apparently got lost in transit during recent storms. That issue has been digitally archived https://urldefense.com/v3/__https://archive.org/details/PC-Mag-1983-11/__;!… But I was hoping to come across a physical copy. Thanks!

2 years, 7 months

2
1
0 0

looking for DQ696 and RQDX3

by Nigel Johnson Ham

Hi folk, I am still looking for a DQ696 to allow me to get ESDI drives going on both my microVAX and 11/73 since the Webster RQD11 controller failed I only have the one. I'd also like to get old of an RQDX3 since I built a Gesswein emulator and have nothing to test it with :-) Any help appreciated, Nigel -- Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU Amateur Radio, the origin of the open-source concept! Skype: TILBURY2591

2 years, 7 months

4
3
0 0

Microinterfaces Corp Run/CPM/Z80 Software?

by Christopher Satterfield

Was wondering if anyone had one of these and/or maybe had the software floppy kicking around? It's an ISA card with a Z80 + RAM to shove into an ISA slot for CP/M compatibility. Of course, information's sparse online and forget software. Here's a picture of said card, https://i.imgur.com/eJh2on5.jpg . -Chris

2 years, 7 months

3
2
0 0

Beehive Terminal Manual

by Bill Degnan

Useful? https://www.vintagecomputer.net/cromemco/3102/1979%20Beehive%20MicroB%20DM1… Bill

2 years, 7 months

4
6
0 0

Four-Phase Systems

by John Ball

I've been working on a machine since early October that has seen a very rough life. My inventory found it to be an IV/70 that was upgraded with an IV/90 expansion chassis, an NP80 peripheral controller and a Wangco tape system that I only received the the formatter for. I've been trying to document most of the work so far on the vcfed forum and have a massive payload of board and cable photos & board slot arrangements. There was also boards for additional communication, disk and printing options I did not receive and by backwards chance whie I do not have a terminal display I DO have a keyboard, so that suddenly makes a keyboard-less terminal considerably more desireable to me. I've sent a copy of the images off to Al and to Gil Carrick over at the MITA but if anyone here wants a copy I can send them a compressed file. It's 720mb in total. He has also supplied me with some extra information and offered to loan a few items to assist in testing but he has software and card stacks I currently cannot image and are currently not imaged anywhere else that I have found. At this point I've nailed down power supply and capacitor issues and am still working with cabling and very, very little documentation, so I'm starting to run into problems finding solutions for a number of problems regarding damaged components and the IV/90 interconnect. I don't have the original IV/70 boardset for debugging. Sellam, it was alluded that one point you also had a system. Is that still the case? Does anyone have any additional information that can be grouped together while I'm working to get this machine running again? -John

2 years, 7 months

1
0
0 0

Free Tandem NonStop Himalaya K-Series Cyclone systems

by Larkin Nickle

This eBay seller reached out to me and said they had 4 of these things + a disk controller that they’re trying to get rid of ASAP, ignore the list price and message them. I am not affiliated, had just previously messaged them inquiring if they had NonStop media for it and they do. I don’t have the means to go get these things so figured I’d post here so hopefully they don’t end up scrapped. [https://www.ebay.com/itm/255471320134](https://www.ebay.com/itm/25547132013…

2 years, 7 months

3
3
0 0

Re: Old Silicon Valley poster

by Sellam Abraham

Commodore 64's generally sell for between $75-$200 these days on eBay. Finding good, working ones (working SID, VIC-II, etc.) with clean cases that don't have broken edges or inner tabs is getting harder. The C128D is a much different story. Those were not produced in nearly the numbers of the C64. I only came across one in all my days of collecting (that used to be in my collection). Sellam On Mon, Dec 12, 2022 at 2:02 PM John Foust <jfoust(a)threedee.com> wrote: > At 03:30 PM 12/12/2022, Sellam Abraham via cctalk wrote: > >$700 for a C64? Egads, you've been watching too much bad cable TV. > > Hmm, not really. My memory was a little off... it was a C-128D > system from my warehouse that sold a year ago for almost $700. > > - John > >

2 years, 7 months

1
0
0 0

Re: Old Silicon Valley poster

by John Foust

At 03:30 PM 12/12/2022, Sellam Abraham via cctalk wrote: >$700 for a C64? Egads, you've been watching too much bad cable TV. Hmm, not really. My memory was a little off... it was a C-128D system from my warehouse that sold a year ago for almost $700. - John

2 years, 7 months

1
0
0 0

Re: Old Silicon Valley poster

by John Foust

At 09:53 AM 12/12/2022, Sellam Abraham via cctalk wrote: >No wonder the prices on vintage computer stuff has been going through the >roof on eBay over the past couple years. If you spent $1,000 on a Commodore 64 system in 1985, that's about $2,800 in today's dollars, courtesy of inflation. A working C-64 system might go for $700 on eBay today? But people were giving them away not long ago. It's the bathtub curve. I have a bunch of old Amiga posters up there now. I thought they'd fetch nice prices but they've seen little interest so far. I have other R@RE items I'll list. Who knows how they'll do. I have a NewTek Digiview digitizer that is the populated circuit board. The chips have not been sanded to remove their numbers, nor is it potted in epoxy like all the retail production units. I saw a recent sale of a Digiview-labelled parallel port gender-changer that went for $30. Go figure. I have at least one. At 10:06 AM 12/12/2022, Sellam Abraham via cctalk wrote: >Holy crap, someone actually paid $810 for it? They paid almost another $200 on top for the eBay global shipping program and custom duties, too, as I had said I'll only ship to the USA. - John

2 years, 7 months

5
4
0 0

Soviet PDP clones

by Joshua Rice

Hi all, After some discussion on reddit about russian PDP-11 clones, i made the (perhaps erronous) claim that the PDP series in general was cloned by the Soviets. I’m aware that there was a lot of QBUS/LSI PDP-11 clones, and depite poor documentation, there is significant evidence of PDP-8 clones. Also, depite not strictly a “PDP”, the VAX series was also cloned. However, i’m curious whether anyone has any evidence of either the 18-bit or 36-bit PDP machines being cloned? I imagine that given the rather lacklustre success of the 18-bit series, that there would have been less demand for an 18-bit PDP machine in the Soviet Union, but i find it quite hard to believe that no attempt to clone the PDP-6 and PDP-10 machines would have been attempted. Does anyone here have any information on such clones? Cheers, Josh Rice

2 years, 7 months

32
65
0 0

Re: Old Silicon Valley poster

by John Foust

At 01:20 AM 12/12/2022, John Herron via cctalk wrote: >I haven't found the episode yet but this is their website with what I >assume is the poster. >https://gspawn.com/products/apple-computer-poster-map-of-silicon-valley-in-…. >They are asking $799.00. That is a similar style, but not my poster. Mine was landscape, larger, not branded by Apple. I can't read the copyright in the lower left. My listing is still up: https://www.ebay.com/itm/334649989332 - John

2 years, 7 months

2
1
0 0

Re: Old Silicon Valley poster

by Sellam Abraham

I watched the correct episode but posted the wrong link. Here is the link to the SF episode ==> https://play.history.com/shows/pawn-stars-do-america/season-1/episode-3 Sellam On Sun, Dec 11, 2022 at 5:00 PM ED SHARPE <couryhouse(a)aol.com> wrote: > I said > Sf. You have link for Seattle. Try the sf one! > > > Sent from the all new AOL app for Android > <https://play.google.com/store/apps/details?id=com.aol.mobile.aolapp> > > On Sun, Dec 11, 2022 at 5:45 PM, Sellam Abraham via cctalk > <cctalk(a)classiccmp.org> wrote: > Thanks for the tip. > > I found the episode ==> > https://play.history.com/shows/pawn-stars-do-america/season-1/episode-4 > > I watched through the entire insidious thing. Unfortunately, the Silicon > Valley poster never comes up. > > However, there is a Apple ][+ that they buy for $700 (lol) at timemark > 1:55, and at 17:21 some jabronis bring in some mini stand-up arcade games > and then they eventually end up in their warehouse full of pinball > machines. > > What an obnoxious show. It's just Antiques Roadshow but with bad dialogue > and annoying personalities. > > Regardless, if you can remember which episode the poster was in, I'd > still like to watch that. > > Sellam > > On Sun, Dec 11, 2022 at 12:19 PM ED SHARPE <couryhouse(a)aol.com> wrote: > > > Sellam, Yes the episode was there special held in San Francisco in the > > pawn stars do America series that aired a week or so before the list > > member was selling these? Ed# > > > > Sent from the all new AOL app for Android > > <https://play.google.com/store/apps/details?id=com.aol.mobile.aolapp> > > > > On Sun, Dec 11, 2022 at 12:40 PM, Sellam Abraham > > <sellam.ismail(a)gmail.com> wrote: > > Ed, > > > > Do you remember the episode? > > > > Sellam > > > > On Sun, Dec 11, 2022 at 10:37 AM ED SHARPE via cctalk < > > cctalk(a)classiccmp.org> wrote: > > > > Having a good hi Def scan would indeed be nice. > > Having this thing show up on pawn stars probably helped kick the price > > up.Ed# > > > > Sent from the all new AOL app for Android > > > > On Sat, Dec 10, 2022 at 6:18 PM, Don R via cctalk<cctalk(a)classiccmp.org > > > > wrote: I’m surprised no one has scanned one for upload to archive.org. > > Would that reduce its auction value? ;) > > > > Don Resor > > > > Sent from someone's iPhone > > > > > On Dec 10, 2022, at 5:01 PM, Warner Losh via cctalk < > > cctalk(a)classiccmp.org> wrote: > > > > > > On Sat, Dec 10, 2022, 5:59 PM Bill Gunshannon via cctalk < > > > cctalk(a)classiccmp.org> wrote: > > > > > >>> On 12/10/22 18:27, John Foust via cctalk wrote: > > >>> > > >>> Well, she went for $810 to a map dealer in London, and he had to pay > > >>> about another $200 for the eBay global shipping program and duties. > > >>> > > >>> I asked one of the other losing bidders about what I had here and why > > it > > >>> was popular... he said "Dealers are collecting them and > > >>> trying to sell them at various price points. So far sales > > >>> have been pretty minimal at anything over $1000. The > > >>> exception is that some libraries are starting to collect > > >>> them with an eye on the future." > > >>> > > >>> I'll see if I can stitch a good scan before I ship it out. > > >>> > > >> > > >> I wonder what my Unix Wizard poster is worth? (not that I would ever > > >> part with it!!) > > >> > > > > > > Last I priced mine, they were going for 100-200 USD. But there aren't > > many > > > for sale ... > > > > > > Warner > > > > > >> > > > > > > > > > > >

2 years, 7 months

4
7
0 0

Unable to substitute a RaSCSI device for the hard drive in an HP Series 300 workstation

by Stan

I have an HP R/382 workstation with a defective SCSI hard drive. I'd prefer to replace it with a RaSCSI instead of another ancient and failure-prone rotating hard drive. Unfortunately, I my R/382 can't find the RaSCSI virtual drive to initialize it. Has anyone successfully used an RaSCSI in an HP workstation? If so, how did you do it? Thanks for your insights! Stan

2 years, 7 months

1
0
0 0

Re: digest problem, starting with #115

by Stan Sieler

Hi Dennis, The change to "Plain Text Digests" worked, thanks! Stan

2 years, 7 months

1
0
0 0

reset "pulse" stretcher need

by Jim Brain

This might be a bit off topic, so forgive me if so. The issue is a 24VAC motor with one connection to 24VAC and the other gated via two switches. The first switch is a momentary one and the second is in parallel and connected to the motor. A long enough momentary depression on the first switch actuates the electric motor enough to close the second switch, which then stays closed for 1 revolution. The problem is that a quick enough press and release of the first switch does not allow the motor to move far enough to close the second switch. Given the configuration, my general plan was a small one shot timer circuit that energized when the switch was initially depressed and then closed a relay in parallel with the first 2 switches, with a time period that was 1/10 to 1/2 the time of the motor revolution. a quick close and release of the first switch would start the timer, which would then close the parallel switch and then open it a short time later, and then the motor switch, which would still be closed, could signal the end of the cycle. But, I thought I'd ask around and see if a simpler option was available. Jim -- Jim Brain brain(a)jbrain.com www.jbrain.com

2 years, 7 months

5
8
0 0

digest problem, starting with #115

by Stan Sieler

Hi, Has anyone else noticed that the list server is screwing up digest emails, starting with Volume #115? Prior to #115, each message would start with: ---------------------------------------------------------------------- Message: 1 Date: Sun, 20 Nov 2022 18:49:31 +0000 (WET) From: ... Subject: [cctalk] Re: Ident... To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Message-ID: <01SKKMC7X5CG8WYOLI(a)beyondthepale.ie> Content-Type: TEXT/PLAIN As of 115, that demarcation has disappeared. Here's an example from #119, message #6: ---------- Forwarded message ---------- From: Devin D <lyokoboy0(a)gmail.com> To: cctalk(a)classiccmp.org Cc: Bcc: Date: Sun, 27 Nov 2022 12:48:23 -0500 Subject: [cctalk] Guidance on repairing Dec PDP 11 System Greetings, Note that that's *NOT* a "forwarded" message (in the normal CCTALK digest sense), but the start of a new message. Since most people are *EXTREMELY BAD* at trimming the messages they are replying to, the lack of proper message demarcation makes reading the digest quite difficult. Sadly, the listserver doesn't post the version number of the its code with each digest (well, as far as I could see), so I can't definitively tie this to a version change. Can this be reverted/fixed, please? thanks, Stan

2 years, 7 months

2
1
0 0

Stuff available in Somerset, England - Update and MORE STUFF

by Philip Belben

Dear all, I am still trying to declutter enough to empty the storage container, and have room to move around in my basement. I have decided not to renew the lease on the storage container on 10 January, so stuff needs to go by then. The following stuff will go in the skip if no one comes and collects it by early January: D-Scan video printer DECwriter 2 printing terminal A device for cleaning DEC RK05 platters, poor condition, mechanicals corroded, no cleaning pads or fluid - probably display only. The following stuff will probably also go in the skip: Teletype 43 (the dot-matrix Teletype - this is rare but boring; probably rare because boring) A wide range of other small dot-matrix printers - let me know if you are interested in anything of that nature, and I'll try and make a list. The following are available free to anyone prepared to collect: IBM System/23 Datamaster - complete with (yet another!) dot matrix printer. I have some software for this as well. ACT Sirius 1. A fairly complete system including some software (Wordstar and some accounting packages). I may need help disentangling Sirius stuff from Apricot stuff, since the same ACT logo often appears on both. The following are available, but I'd like to be offered a non-negative amount of money: Apple II systems. Four system units (I think they are two //e, one ][ plus and one ][ Europlus, but I can check. Some disk drives. I should be able to find a monitor or two. Quite a lot of manyals, plug-in cards, probably some software disks - but I may need help sorting out Apple II disks from others. Some of the plug-in cards are prototyping cards, and I think one has been set up to talk to some analogue gaming paddles. Research Machines 380Z. (One of the people who collected other stuff from me has expressed an interest in this, and his prior interest will be taken into account in considering offers.) I have a system box (I haven't yet looked inside) with diskette drives on the front; I also have a GIPB (IEEE-488) card and a rather nice I/O prototyping card - it is pre-populated with three PIO chips and one other large chip, all in wire-wrappable sockets, and lots of space for a homebrew interface. A Victor V86P laptop. I know nothing about this machine, but it has the Sirius logo on it (I think the Sirius 1 was sold under the Victor brand in some places, so this figures) As before, please reply to declutter(a)axeside.co.uk, whether or not you reply here. If I get interest in some of the machines, I'm happy to look more closely at them and try to answer queries. In general, I'd prefer people to come and collect stuff, but for the smaller items (e.g. the Victor laptop) I'd be happy to discuss shipping. Collecting stuff yourself is a more reliable way of getting the parts you need (e.g. cables), and of finding other stuff that I don't mind getting rid of. As regards the systems for which I want money, I do not guarantee to accept the highest offer; as I said, I have already had interest in the 380Z and this will be taken into account. Finally, I am trying to contact Anthony Sibley. We started making arrangements for him to collect some stuff, and then I stopped getting replies to my e-mails. Either he is not receiving them or I am not receiving his replies. Please get in touch, or your TU16 will go elsewhere, maybe even in the skip. Philip.

2 years, 7 months

3
4
0 0

Need power supplies?

by Van Snyder

I have two Power General FLU4-150 power supplies, apparently set up to be used in some kind of a server. They have an extra board that includes some Schottky diodes, presumably so they can be used in parallel without a failing one damaging a working one. I don't know the precise model numbers, but they provide +/- 5v and +/- 12v. One (or maybe both) would fit in a Postal Service medium flat-rate box. Yours for the price of a PDF shipping label. I also have five power supplies that appear to have come from Dell servers. I don't know their specs. They have a weird connector that actually has a Molex number (that I have forgotten). Let me know if you might want any of the Dell power supplies and I'll work out which box would be needed for shipping. If you can't use them for their originally-intended purposes, maybe you can convert them to lab-bench supplies. Van Snyder

2 years, 7 months

1
0
0 0

REPLICA Cromemco Cyclops Camera

by William Sudbrink

Sorry to spam the list, but I find myself in need of some holiday cash (or positive PayPal balance, anyway) so I am offering a REPLICA Cromemco Cyclops Camera for sale. This is ONLY THE CAMERA. You will need to have your own Cyclops interface board set or build an XYZ scope interface as in the manual: https://www.autometer.de/unix4fun/z80pack/ftp/cromemco/Cromemco%2088%20ACC%2 0Manual.pdf This will be the camera I demonstrated at 2018 VCF East. All three circuit boards are clearly labeled REPLICA in the copper layer. Details of the construction and other photographs are on my web page: http://wsudbrink.dyndns.org:8080/cyclops/index.html#Cromemco I would much rather sell it here to someone who clearly understands what they are getting, rather than dealing with ebay. I will also include a pair of REPLICA side panels (made from measurements of an original) that I had made last year. I would be happy to zoom with the buyer and demonstrate the camera in operation. Email me directly if interested. Thanks, Bill S. -- This email has been checked for viruses by Avast antivirus software. www.avast.com

2 years, 7 months

2
4
0 0

A UK Vintage Computer exchange buddy?

by Ethan O'Toole

Hello, I have looked at vintage UK computers on Facebook Marketplace and the like. The people usually will not post, especially to me in the USA. They are normally looking for local collection. Anyone in the UK want to be a vintage computer swap friend? Looking to get some systems from there and could help get systems from here in return. I am in the USA. Private message if interested! - Ethan -- : Ethan O'Toole

2 years, 7 months

2
1
0 0

CORRECTION: Peripherals available in Dorset, England : Free to a Good Home

by Martin Bishop

ftagh(a)janefield.net (NOT .org) Martin -----Original Message----- From: Martin Bishop via cctalk [mailto:cctalk@classiccmp.org] Sent: 03 December 2022 18:07 To: General Discussion: On-Topic and Off-Topic Posts (cctalk(a)classiccmp.org) <cctalk(a)classiccmp.org> Cc: Martin Bishop <mjd.bishop(a)emeritus-solutions.com> Subject: [cctalk] Peripherals available in Dorset, England : Free to a Good Home Folks The following job lots are available as described but untested, stored in the attic / house since last use : UMMV Lot A : Matsui B&W 13" 1420T SIL UHF & Scart 230V (may be useful as a retro monitor esp as exhibit) [operable when last in service ~?] Lot B : Samsung CLP-350 A4 Color Laser Enet 230V - contains consumables, level unknown - very streaky when last used + CLP-R350A Imaging Unit + CLP-W350A Waste Bin + CLP-C350A Cyan toner + CLP-Y350A Yellow toner + CLP-M350A Magenta toner [consumables BNIB] [operable but streaky when last in service ~2015] Lot C : Samsung CLP680 A4 Color Laser Enet 230V - contains consumables, level unknown - motion fault when last used "A1-4112" + CLT-K506L Black toner [consumable BNIB] [defective "A1-4112" when last in service ~2022] While these are on the margins of classic, I'm happy to give the community first refusal on a free to a good home basis. Collection needs to be no later than next Thursday 8 December. If firm collection arrangements have not been made by CoP Sunday they will be offered on Gumtree ... If they are still here after Thursday, they may go wheee. Apologies for the short notice. Replies to ftagh(a)janefield.net will be regarded as offers. Collection offers will be considered in the round, but the early bird is likely to have an advantage, accepted offers will be honoured until the agreed collection time passes, thereafter the acceptance will lapse and they will be back in play. Martin

2 years, 8 months

1
0
0 0

Peripherals available in Dorset, England : Free to a Good Home

by Martin Bishop

Folks The following job lots are available as described but untested, stored in the attic / house since last use : UMMV Lot A : Matsui B&W 13" 1420T SIL UHF & Scart 230V (may be useful as a retro monitor esp as exhibit) [operable when last in service ~?] Lot B : Samsung CLP-350 A4 Color Laser Enet 230V - contains consumables, level unknown - very streaky when last used + CLP-R350A Imaging Unit + CLP-W350A Waste Bin + CLP-C350A Cyan toner + CLP-Y350A Yellow toner + CLP-M350A Magenta toner [consumables BNIB] [operable but streaky when last in service ~2015] Lot C : Samsung CLP680 A4 Color Laser Enet 230V - contains consumables, level unknown - motion fault when last used "A1-4112" + CLT-K506L Black toner [consumable BNIB] [defective "A1-4112" when last in service ~2022] While these are on the margins of classic, I'm happy to give the community first refusal on a free to a good home basis. Collection needs to be no later than next Thursday 8 December. If firm collection arrangements have not been made by CoP Sunday they will be offered on Gumtree ... If they are still here after Thursday, they may go wheee. Apologies for the short notice. Replies to ftagh(a)janefield.org will be regarded as offers. Collection offers will be considered in the round, but the early bird is likely to have an advantage, accepted offers will be honoured until the agreed collection time passes, thereafter the acceptance will lapse and they will be back in play. Martin

2 years, 8 months

1
0
0 0

RIP Fred Brooks (1931-2022)

by Tomasz Rola

As the subject (and wikipedia) say: https://en.wikipedia.org/wiki/Fred_Brooks -- Regards, Tomasz Rola -- ** A C programmer asked whether computer had Buddha's nature. ** ** As the answer, master did "rm -rif" on the programmer's home ** ** directory. And then the C programmer became enlightened... ** ** ** ** Tomasz Rola mailto:tomasz_rola@bigfoot.com **

2 years, 8 months

16
29
0 0

Re: Fwd: Philips P2000C carrying strap

by Smith, Wayne

Found an ad from 1984 - poor resolution but gives you an idea of what the strap looked like. -W https://photos.app.goo.gl/NG7kCK4qHyDgNKxb6 Date: Sun, 25 Sep 2022 16:25:59 +0100 From: Tony Duell <ard.p850ug1(a)gmail.com> Subject: [cctalk] Fwd: Philips P2000C carrying strap To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Message-ID: <CAHkUCCzHdS2ayzu=pguLaj_KEHqGv-TZxE8Bv2ap8hUKL=CYDw(a)mail.gmail.com> Content-Type: text/plain; charset="UTF-8" Does anyone have a Philips P2000C CP/M luggable with the carrying strap? I will be restoring such a machine in the near-ish future and mine is lacking the strap. Clear photos of the end fittings that slot into the machine, the dimensions of them, etc would be a great help in making something up. -tony

2 years, 8 months

11
13
0 0

Guidance on repairing Dec PDP 11 System

by Devin D

Greetings, Been a while since i have posted here. I have several PDP11 systems and peripherals. I picked the original lot of a system 34 and related tech in Miami FL a couple years back, and have since found several more pdp 11/34 machines, and a pdp 11/05, 11/85, and others. It has been a goal to get the original PDP 11/34 system up and running, however my job schedule kept getting in the way of my repair efforts, making it easy to loose track of where i was at with the repair progress. Thankfully i no longer work in a datacenter in a 10 hour overnight shift, so it should be much easier to devote my time to this repair. I am looking for advice to get the 11/34 system up and running. I have started to put together a site to document my progress, to stay on track with the repair effort. The system has 2 rl02 drives, and an attached 9 track tape drive. I had worked to repair a power supply issue at first, there was a problem with the main transformer, as well as one of the smaller voltage "bricks". Thankfully i have many systems and i was just able to swap in the needed working parts. So this is about as far as I got, I had a minimal config of the 11/34 machine running, with not much more than the cpu, and a serial card to talk to attached terminal. Power supply works, and i was able to toggle in programs from the front panel to output characters to the attached terminal. I believe the next logical step was to try and attach the rl02 controllers, and see if the disk packs still have working installs of RSX installed. I am not sure how to proceed with this though. I have mainly been following the advice of Paul Anderson, who has been a godsend in regard to advice and guidance with getting these old systems fixed up. I hope that if i keep a log of the repair effort on my site, it will allow me to pick up where i leave off with the repair much more easily. So that is the present condition of the machine. Good power supply, can toggle in simple programs to print to the attached terminal. Any advice on how to proceed is much appreciated. I Need to get an itemized list of what hardware and cards i have on hand, and post that here so its understood what i have. Thanks, Devin D.

2 years, 8 months

6
5
0 0

Box of SCSI stuff

by Van Snyder

I have a box of SCSI stuff that I'm no longer using. PCI adapters (Adaptec, Symbios) Cables -- 68-pin, 50-pin Centos, 50-pin Mac-Centos, 50-pin ribbon cable, .... Terminators Yours in exchange for a PDF of a USPS flat-rate box shipping label. Everthing might fit in a medium flat-rate box, but just to be sure send a PDF for a large flat-rate box. Van Snyder

2 years, 8 months

1
0
0 0

Identifying a Failed Diode in a Rainbow H7842 Power Supply

by Rob Jarratt

The H7842 PSU in my Rainbow failed yesterday. At first the machine just powered down and there was a slight burning smell, I wasn't next to the machine when this happened, so I didn't see or hear anything to tell me where the problem might be. Not being sure if there was a short in the machine or a problem in the PSU, I disconnected the fans, FDD and HDD and, probably foolishly, I applied power again to see if the machine would work. At this point there was a bang and a flash in the PSU. On opening up the H7842 power supply I found that one of the transistors had completely disintegrated. It looks to be the main switching transistor, here is a picture of it: https://rjarratt.files.wordpress.com/2022/11/img_20221120_165850.jpg. I have identified a source for this transistor, but if anyone can suggest a modern replacement that would be useful too. However, that is not my main problem. Given that before the transistor blew up there had clearly been another failure somewhere else, I tried to find the original failure. There were no obviously damaged parts, so I just probed around near the transistor for any parts that were open circuit or short circuit. I found a diode connected to the base of the transistor that appeared to be short circuit. So, I decided to lift one end to check it. As I de-soldered one of the leads, the diode broke in two. So clearly the diode was either damaged by the failure of the transistor, or it was the cause of the failure. This is the diode: https://rjarratt.files.wordpress.com/2022/11/img_20221120_165913.jpg. I can't quite make out the markings on the diode to know what to replace it with. I think it says "D610". Would that be the right designation? If so, can anyone suggest a suitable replacement please? The diode seems to connect an inductor to the base of the switching transistor and the collector of the transistor is connected to a transformer. Should I be looking for other failed parts? Not sure if the diode failed first and then caused the transistor to fail? Or if something else has failed which caused these parts to fail? I do know that there are no shorts in the Rainbow itself, because I have a spare PSU that still works fine in the same machine. I blogged this here (it repeats most of that I have said above): https://robs-old-computers.com/2022/11/20/dec-rainbow-h7842-power-supply-fai lure/ Thanks Rob

2 years, 8 months

8
25
0 0

To cctalk owner: There's a problem subscribing

by Toby Thain

Clicking Subscribe goes to a Not Found page. I found this out because I'm trying to subscribe with a new email address. --Toby

2 years, 8 months

4
6
0 0

Help! Mentec and GRC DEC compatible manuals not in usual places...

by Robin Downs

Hi and thanks for reading... I am on the way to getting a small Q-Bus PDP11 up and running (I used to work on and repair then in the 1980s) and have some boards and a chassis now, but I cannot find any documentation for a couple of less common boards I have got - any help would be greatly appreciated - but I have looked in the usual places... The main issues are: Mentec M70 CPU - There are jumpers for serial port config and speed.. I have got a glossy leaflet for it but no jumper info.. GRC MLV11 - two serial lines and 128KB memory, but configured with switches - lots of switches... Also is anyone has any old Q-Bus parts in the UK (particularly any Baydel parts) that are looking for a good home, I would love to hear from you! Thanks for reading - any help or info much appreciated! Regards, Robin Downs Email: rdowns(a)radix.co.uk<mailto:rdowns@radix.co.uk>

2 years, 8 months

1
0
0 0

Holmes Engineering CP/M

by Mike Loewen

I'm still looking for a copy of CP/M for the Holmes Engineering VID-80 board for the TRS-80 Model III. A manual would be helpful, as well. Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

2 years, 8 months

1
0
0 0

digital group's Richard Bemis

by Whitney Scharer

Hi Brad, I just came across your post from last year about my father, Richard C. Bemis. He passed away in June. I wish I knew more about the digital group and would love to see the video or article you are working on. I can also fill you in on what my dad did after dg. Thanks, Whitney ___ Whitney Scharer *The Age of Light* Order today from Bookshop.org <https://bookshop.org/shop/whitneyscharer> or Amazon <https://www.amazon.com/Age-Light-Novel-Whitney-Scharer/dp/031652414X/ref=sr…> whitneyscharer.com <http://www.whitneyscharer.com/> | @wscharer <http://www.twitter.com/wscharer> | instagram.com/wscharer

2 years, 8 months

1
0
0 0

Nova and Eclipse Emulator beta release

by Bruce Ray

Wild Hare Computer Systems is pleased to announce the public beta release of its Data General Nova and Eclipse emulator. This emulator allows the full range of DG 16-bit Nova and Eclipse computer software to run on Microsoft Windows and Linux platforms, and will become a major part of Wild Hare's increased efforts to preserve Data General's significant contributions to computer history. The emulator combines portions of Wild Hare's commercial products with the SimH project structure to create a single emulator for the 16-bit Nova and Eclipse computers. The program supports a wide range of features, including: Processors: unmapped Nova, SuperNova, Nova 1200, Nova 800, Nova 2, Nova 3, Nova 4 mapped Nova 840 mapped Nova 3/D mapped Nova 4/X Eclipse S/130 Eclipse S/140 Eclipse S/150 Eclipse S/120 Eclipse Desktop Generation Model 20 and Model 30 Peripherals: TTI/TTO primary console (TeleType) input/output RTC real-time clock TTI1/TTO1 secondary console (TeleType) input/output PTR paper tape reader PTP paper tape punch PLT plotter LPT line printer MTA mag tape unit DSK fixed-head disks DKP moving head disks DEP Desktop Generation disks DZP popular "Zebra" moving head disks QTY 4060 "Quad" asynchronous multiplexers ALM 4255 Asynchronous Line Multiplexers Software: Operating Systems DOS Novas (first DOS written for Nova) URDOS RDOS for Novas and Eclipses (in unmapped mode) MRDOS RDOS for Mapped Nova 840 NRDOS RDOS for Mapped Nova 3/D and Nova 4/X ZRDOS RDOS for Mapped Eclipses MP/OS Nova 4 DG/RDOS Eclipses AOS Eclipses MP/AOS Eclipses Languages ASM (Assembler) MAC (Macro Assembler) ALGOL DG/L FORTRAN 4 FORTRAN 5 FORTRAN 77 Extended BASIC Business BASIC MP Pascal SP Pascal COBOL Interactive COBOL (ICOBOL) PL/1 RPG II IDEA INFOS II CEO Prior Data General knowledge is beneficial to using the emulator and corresponding DG software. For convenience, Wild Hare has created container files of pre-configured operating system environments and their corresponding languages to minimize the time needed to enjoy the full DG "experience". This "beta-level" software release is intended to gather user feedback to help guide future product development. Bug reports, comments, suggestions, ridicule and giggles can be sent to beta(a)WildHareComputers.com. Further information is contained in the emulator beta release web page: www.NovasAreForever.org/dgbeta Bruce Ray Wild Hare Computer Systems, Inc. Denver, Colorado USA bkr(a)WildHareComputers.com ...preserving the Data General legacy: www.NovasAreForever.org

2 years, 8 months

3
3
0 0

Is this a RIFA (uV3100-10 PSU)?

by Antonio Carlini

I'm working on cleaning up a bit of battery leakage in a MicroVAX 3100 Model 10 and while it's apart I decided to look inside the PSU (an H7822-00). It's nice and clean inside with no bulging caps. What it does have is an X2 capacitor, as shown here: https://photos.app.goo.gl/dpdqJ3tuGfsRDR3Y6. It doesn't appear to be damaged and I can't see the word "RIFA" on it anywhere but I can't see two of the sides because of other components that get in the way. So does anyone know for sure whether it is a RIFA brand or not, or do I have to desolder it to be sure? Thanks Antonio -- Antonio Carlini antonio(a)acarlini.com

2 years, 8 months

4
12
0 0

Looking for NORTRONICS Read/Write head for IBM 5100/5110/5106 tape unit

by Steve Lewis

I have a 5100 and 5106 both with a working tape unit. But the tape unit in my 5110 is not working, and I believe it is the read/write head. The REWIND command works, but the MARK command does not (ERR 3). I took the Tape Card from the 5110 and swapped it into the 5106, and the 5106 continued to work (and 5110 then had same result, ERR 3). This tells me the issue isn't any electronics in the Tape Card electronics (such as bad IC's). Swapping the electronics card is easy. But I haven't yet tried taking the read/write head from the 5106 and putting it into 5110's tape unit (they both use all the same components) -- it's not that difficult, but I don't really want to put a working 5106 at more risk of becoming non-working. Hence, that's why I'm asking around first if anyone might happen to have one of these NORTRONICS or a suitable substitute to try. For example, it may be the same kind of read/write head used in some reel-to-reel systems of that era (early/mid 1970s). The various numbers on the read/write head are as follows: NORTRONICS PN 1608752 C584980 269 24256 I have measurements and photos of what I'm looking for at the bottom of this link: https://voidstar.blog/ibm-5100-internal-tape-and-5106/ The head is about a 15mm x 20mm, with a 26mm ground extension on one side for mounting. A few months ago I contacted Nortronics. They had some stock that was close, but not this exact pin out (4-pins on one side, 6-pins on the other; not sure which is read vs write). I think all the ones they had were 4-pin/4-pin. I've also tried different brand tapes, DC6150 vs DC600A (which all of them do work in the 5100, but not the 5110). -Steve

2 years, 8 months

1
0
0 0

Apple AWACS register documentation

by Cameron Kaiser

Any Apple alumni (Al?) with documentation on AWACS registers? I'm trying to figure out why the BeOS AWACS sound driver works on some Power Mac 6500s and TAMs but not others (but works fine on 6400s and everything previously). Yes, I'm aware that Be considered the 6500 "Unsupported but Compatible" and it boots fine on my 6500/275 but is totally mute. An instrumented driver in debug mode yielded little insight. The driver thinks it's initialized everything correctly and reports no errors. I wonder if there's something about the SRS sound enhancement that's different on later 6500s/TAMs. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser(a)floodgap.com -- God made the integers; all else is the work of Man. -- Kronecker -----------

2 years, 8 months

1
0
0 0

2025

2024

2023

2022

cctalk