- test-drb@ccmp.vtda.org - classiccmp.org

by cube1＠charter.net

An OLB isn't an executable - it is the Fortran library. Time to go find some rsx doc and read up a little, maybe. Paul Anderson <wackyvorlon at me.com> wrote: >I've developed the itch to play with RSX-11/M, so I've setup simh using these instructions: > >http://home.earthlink.net/~n1be/pdp11/PDP11.html > >So far, so good. I've got it up and running. The problem is in trying to run fortran. There's a FOR.OLB in db0:[11,41]. When I try to run for, I get TASK NOT FOUND. When I run ins $for to load it, it reports not being to find the file. Being a total newbie at this, I'm not sure how to get it to run. Any ideas?

14 years

1
0
0 0

RSX-11/M and FORTRAN

by wackyvorlon＠me.com

I've developed the itch to play with RSX-11/M, so I've setup simh using these instructions: http://home.earthlink.net/~n1be/pdp11/PDP11.html So far, so good. I've got it up and running. The problem is in trying to run fortran. There's a FOR.OLB in db0:[11,41]. When I try to run for, I get TASK NOT FOUND. When I run ins $for to load it, it reports not being to find the file. Being a total newbie at this, I'm not sure how to get it to run. Any ideas?

14 years

1
0
0 0

CMOS vs TTL Crystal Oscillator for Cosmac?

by nick.allen＠comcast.net

Is there any reason to use either a CMOS or TTL Crystal Oscillator for a Cosmac computer? I assume it should accept either, any preference if you had a choice? Thanks, and can't wait to showcase some of the DIY computers I am working on at this years VCFMW!

14 years

3
2
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anyone boot rsts v10.1 with emulex uc07?

by brad＠heeltoe.com

I'm curious if anyone here has tried to boot rsts v10.1 with an emulex UC07 qbus scsi controller. I'll go ask on the google forums, but I thought I'd ask here also. I made an ra81 disk image with simh and it boots fine, but when I transfer the image to a scsi disk and and boot it on an 11/83 with a UC07 scsi controller it fails (claims something about the cluster size being wrong). I'm just trying to get a rsts v10.1 image which will boot on a qbus 11/23 with an UC07. I'm wondering if the UC07's MSCP emulation is at odds with rsts's MSCP driver. -brad

14 years

3
3
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Apple 1 insanity continues

by aek＠bitsavers.org

http://www.ebay.com/itm/251115805166 down to cloning the Christies box gee.. I wonder where he got the scan of the manual from

14 years

24
85
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qbus msv11 memory board debug?

by brad＠heeltoe.com

I'm curious if anyone has ever debugged an QBUS MSV11 board. I have one which appears to have a bad memory location - a single bit error. I assume this means there is one bad dram chip. But I've never debugged a memory board like this before. Is it possible to figure out which chip is bad? (it seems obvious the answer is yes, but how?) I know the location - is there some reasonable way to map that back to the chip? I guess I could hunt and peck by grounding or pulling high the outputs of different chips and running the memory diag. any thoughts? -brad

14 years

5
4
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Tektronix 618 storage tube

by legalize＠xmission.com

When was the 618 storage tube introduced by Tektronix? I can find 611 and 613 in the catalogs, but not the 618. -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://computergraphicsmuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

14 years

2
3
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Anyone around Elgin, IL?

by brain＠jbrain.com

I just bought a SX64 and it has local pickup. Anyone nearby who might offer my SX a home for a couple of months until I drive to Lombard in late September for the ECCC/VCF show? Jim -- Jim Brain brain at jbrain.com www.jbrain.com

14 years

2
1
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Commodore C286-LT <Remove partition table>

by steve.hunt＠iname.com

Got me another harddisk, also an old Connor, not sure if it works but can't seem to find anything like a working DOS floppy with a FDISK.EXE which allows the removal of non-DOS partitions. A quick search for "remove non dos partition debug" should find an easy way to wipe the partition table using the MSDOS Debug command. Here's one such link: http://forums.techguy.org/dos-other/36829-removing-dos-partition-debug.html

14 years

1
0
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IBM ThinkPad 760XD

by BHuntsman＠mail2.cu-portland.edu

Hi there! I know it's not as interesting as non-Intel-based stuff, but I just picked up an ex-NASA ThinkPad 760XD and thought I'd poke at it a while given it's connection to the Shuttle Program. Does anyone know anything about these older IBM ThinkPads? This one came to me missing it's battery and hard drive/caddy assembly. The battery's not so big a deal, but finding the right hard drive and caddy has been pain. I'm a big fan of "stock", so I did some research and looks like the "high-end" drive for this thing back in the day was the 3.0GB IBM DLGA-23080. I'd also picked up an after-market drive caddy, but as it turns out the DLGA-23080 is too tall for the caddy... Anyone know if the DLGA-23080 had a special caddy, and where I might find the right one that's genuine IBM? Or, am I completely mistaken and the "stock" 3.0GB drive for the ThinkPad 760XD is a different model? I can't find a good FRU list anywhere... Anyway, many, many thanks in advance for the help!! -Ben

14 years

4
5
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"Sent from my iPad", was Re: NRI 832 Clock Not Working

by saquinn624＠aol.com

>How about ... "One ringie dingie"Ben. Adding to the noise pollution, but why not merge this with those silly disclaimers and a surfeit of caps to be the following: "If this e-mail message has reached anyone other than the person who is reading it, then be advised that it is privileged information and reading, divulging, or even thinking about doing that will attract the unmitigated ire of ... HOW DARE YOU! YOU READ IT ANYWAY!! NOW THINGS ARE GOING TO GET UNPLEASANT!!! LIKE YOUR SLEEP?? WELL, DON"T COUNT ON GETTING MUCH MORE OF IT! RINGY-DINGIES ALL NIGHT COMING RIGHT UP! We're the phone company. We don't care. We don't have to.

14 years

1
0
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prototype floppy media

by jws＠jwsss.com

Wonder if anyone is interested in this? 4 1/2 inch floppy prototype supposedly from IBM htttp://www.ebay.com/itm/251110295055 really pricy, but if you are into weird media this might not be something to miss. Jim

14 years

8
18
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Passing of Robert Ragen

by rickb＠bensene.com

Hello, all, While not exactly on-topic for classic computers, it is indirectly related due to electronic calculators being an enabling technology for the first microprocessors. On Friday, 20-July, Robert "Bob" Ragen, the father of the Friden EC-130 calculator (arguably the first all-solid-state electronic calculator) passed away with his family around him. He was 83 years old, just three days short of his 84th birthday. Ragen was responsible for bringing Friden into the electronic age with the design of the EC-130, and a number of follow on calculators, including the EC-132, and the 1150 and 1160-series calculators. He was a prolific inventor, with over 80 patents to his name. The EC-130 exhibit in the Old Calculator Museum has been permanently dedicated to this calculator pioneer. Rick Bensene The Old Calculator Museum http://oldcalculatormuseum.com

14 years

1
0
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TU58 emulator

by iamcamiel＠gmail.com

Hi Everyone, I'm thinking of a way to move as many of the PDP11 systems I have into my attic office to a) get them going, and then b) run them occasionally. I've stripped the two low corporate racks to the chassis, and if I can find a helping hand, I'm sure I can get them into the attic, then put the tabletop of my electronics workbench on top of it (I'm a little short on space). I'm thinking of bolting two pieces of rack profile to one side of each rack, which would turn them into a single unit comprising three racks. That way, I should be able to mount 6 10.5" PDP's and 6 5.25" PDP's, and have them conveniently close to my oscilloscope and logic analyzer to work on them. Now for storage... I have some RL02 drives, but I'm a bit reluctant to drag those upstairs. I have Emulex scsi controllers for three of the PDP's (2 x UC18, 1 x UC08), but the rest is without mass storage. I read about the TU58 emulator that runs on Linux, and I'm thinking of putting a DECserver into the rack with the PDP11's, and use virtual TTY's on a Linux box that connect to the PDP11's over the DECserver, then run multiple instances of the emulator so each PDP has one or more emulated TU58's. I know the "real" TU58 tapes can hold something like 256K of data. Are the operating systems aware of this limit, or could you get by with emulating a larger tape? Thanks for any insight you may have to offer. Warnings like "That's a really bad idea, because..." are also very welcome. Cheers, Camiel

14 years

4
4
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DR11-W and DRV11-WA ... related?

by holm＠freibergnet.de

As you already know I got this Tek 611 Thing working lately and now I think about connecting that Beast to one of the PDP11 systems I have. They all are QBUS 11's, (12,53,83). Joachim gave me the hint to use a DRV11 or an DRV11-WA to connect the needed D/A Converters to supply the Tek611. I do have both DRV11 Variants. Now I'm looked in the 2.11BSDs sources and found a driver for DR11 boards, which looks like a similar parallel interface for the UNIbus. (I'm a Unix guy, and using BSD may be the fastest way for me to get this to work). How similar are the 3 interaces to each other? Is is worth to begin with the DR11 driver..? I've don't looked deep in the DR11 Manual and I dont even have one for the DRV11 Boards (...has someone a Hardware/Programming Manual?) so I'm primarely asking here for some experiences from other people.. Kind Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

14 years

2
2
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Defcon XX

by ian.finder＠gmail.com

I'll be there... Landing Thursday. Might bring a sparcbook... Sent from my MicroVAX II

14 years

3
2
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need to replace some NEC APC circuit boards

by rampaginggreenhulk＠yahoo.com

?In a mad fit I think I tossed a few. The cpu card for one, probably the disk controller also. Somehow the video cards and something else, and my Butler Flats Associates 5 1/4" disk controller board were spared. I have the chassis/card cage. I would like to replace what's missing. In the event you have an APC laying about, don't know what to do w/it, maybe you can help me out. ?I am _not_ looking to have an entire APC shipped to me though.

14 years

1
0
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AT&T/Western Electric Transmission Module available

by fraveydank＠gmail.com

(apologies for long lines; posting from phone) Is anyone interested in the above mentioned machine, chock full of DS0 modules and a few other things? My employer is moving office and is looking to offload it. It's in the Germantown, MD area (near Washington, DC). I have pictures which I can post publicly once I'm back at an actual computer. If you're interested, you'll probably need to get it by the end of the month, since that's when the old lease is done. Feel free to contact me off-list. - Dave

14 years

2
2
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Looking for DEC VK100 'GIGI' Maintenance print sheets

by jgevaryahu＠gmail.com

> On 7/23/12 1:12 PM, Richard wrote: >> In article<500BAEE9.2090102 at gmail.com>, >> Jonathan Gevaryahu<jgevaryahu at gmail.com> writes: >> >>> The Tech manual on bitsavers ( >>> http://www.bitsavers.org/pdf/dec/terminal/gigi/EK-VK100-TM-001_VK100_Techni… >> l_Manual_Apr82.pdf >>> ) is missing a lot of information I need, and is also rife with errors! >> It would be good to have an errata to the technical manual. Can you >> email up a list of the errors you've spotted so far? > that would be a good thing > > GIGI documentation is very hard to find. Ok here's a quick rundown of the errata so far (there's probably a lot more I haven't noticed), some stuff might need to be done as images/drawings due to errors in some figures: page 4-19 subheading 4.4.4.1: Omission: PEEK(address) is perfectly valid code and isn't in the list of valid basic operators. (Tested on emulation and 10 print peek(0256) then run does print 194 (0xC2 appears at offset 0x100 in address space).) page 5-3 figure 5-2: Error/Omission: the "DIP SELECTION" box next to "SYSTAT A" should have a second arrow pointing to it from the address bus (since DIP selection is based on the low 3 bits of the address (offsets 0x40-0x47)) page 5-10: Error: the rom 3 extends from 6000-67ff, not 6000-63ff as listed. The chip contains 6000-6fff but the area between 6800 and 6fff is blank, 0x00s. page 5-14: Table 5-3 I/O Register Addresses: Error: the write register decode for address 0x47 does not have the read bit set to 1 (this is an obvious typo) Error: The KYBDW write register is listed as if it is at offset 0x78; it is actually at offset 0x68. Error/Omission: the read register for SYSTAT A is listed as 0x40; it is actually mirrored to 0x40-0x47 but the dipswitch bit read to d2 for each of those addresses is different. (the switches read for each of the addresses from 0x40 to 0x47 in d2 is, base-0, so switch 1 is 0, 2 is 1, etc: 1,3,5,7,6,4,2,0 ) page 5-15: Table 5-4 Program RAM addresses: Omission: the c000-ffff ram area is not populated on the vk100 board, though ram is refreshed as if it was there. (it may have been intended as an expansion kit by DEC but was never sold as far as I'm aware) Error: Table 5-5 I/O ROM Microcode Address: the address for the row read/column drive mapping of the keyboard ranges >from 7000-700F, not 700. (actually it mirrors to the whole 7000-7fff area every 16 bytes, and the firmware reads it at 7ff0-7fff) page 5-27: Figure 5-17: the "translator input" left side of this figure has some major row/column offset/duplication issues. The correct contents should be: 11 10 9 8 7 6 5 4 3 2 1 0 (000) TA200 1 0 0 0 0 0 0 0 0 0 (001) TA200 1 0 0 0 0 0 0 0 0 1 (002) TA200 1 0 0 0 0 0 0 0 1 0 (003) TA200 1 0 0 0 0 0 0 0 1 1 --------------------------- (004) TA201 1 0 0 0 0 0 0 1 0 0 (005) TA201 1 0 0 0 0 0 0 1 0 1 (006) TA201 1 0 0 0 0 0 0 1 1 0 (007) TA201 1 0 0 0 0 0 0 1 1 1 --------------------------- (010) TA202 1 0 0 0 0 0 1 0 0 0 (011) TA202 1 0 0 0 0 0 1 0 0 1 (012) TA202 1 0 0 0 0 0 1 0 1 0 (013) TA202 1 0 0 0 0 0 1 0 1 1 --------------------------- (014) TA203 1 0 0 0 0 0 1 1 0 0 (015) TA203 1 0 0 0 0 0 1 1 0 1 (016) TA203 1 0 0 0 0 0 1 1 1 0 (017) TA203 1 0 0 0 0 0 1 1 1 1 --------------------------- The right table in the figure is correct. Page 5-29, Table 5-7: Error: The equation for "Overlay" should be M=AT(P+N) instead of M=A+(P+N) Page 5-30, Figure 5-19: Error: The labels on the two lines coming from the "SOPS" block are transposed; The top one should be "WHAT COLOR IS THE SCREEN" and the bottom one regarding the bit 0 reverse video bit. Omission: the line which SHOULD be "what color is the screen" (the one going to input B on the MUX) should have a note on the line noting that it is 4 bits wide, not one bit as is implied by the figure. The "What color is the data" line should have such a marking as well. Page 5-32 Figure 5-21: Error: the clock source for the down counter is NOT the "CHAR CLK" as listed, but the "DOT CLK". (This had me confused for a good 15 minutes before I spotted the error) Page 5-35: Omission/Ambiguity: The description of the "Screen Options (SOPS)" register is missing the bit numbers for each part of the described functions, and there are FOUR functions, not three. This could be better written as: 1. Blink Control/Mask (bit 3) 2. Background Color + Blink (bits 7,6,5,4) 3. I/O port control (EIA, 20 mA, hardcopy and self-test) (bits 2,1) 4. Normal/Reverse Video (bit 0) Page 5-38, Figure 5-23 Arbitrary Waveform Timing: Error: The Vector rom addresses listed at the top have address 23 missing and 33 duplicated twice; the correct pattern from left to right should be: 34 23 22 21 20 25 24 33 32 31 30 35 34 23 22 21 20 25 24 33 32 31 30 35 Page 5-42, Figure 5-26: Error/Ambiguity: the lines from "SOPS" to "I/O PORT SELECTOR" are labeled SL1 and SL0; the actual bits in the SOPS register these represent are bits d2 and d1. Page 5-53, Figure 5-33 and Table 5-10: the same ambiguity with SOPS bit labels SL1 and SL0 appears here. Nowhere in the tech reference does it mention they are bits d2 and d1. Page 5-57 Figure 5-37: Omission: the line from "ADDRESS LATCH" to "DECODER" (which is labeled A6-A0) is missing its (70<subscript>16</subscript>) marking; on figure 5-36 on the previous page (page 5-56) the marking is present. Page 5-62: Omission/Ambiguity: the description of SYSTAT A does not note anywhere in the tech reference that the bits read appear in SYSTAT A bits 6,5,4,3 for bits 3,2,1,0 of the nybble the current X and Y registers point to in VRAM. One possible error (I need to test this more), which appears on two successive pages: Page 5-66 Figure 5-42: *POSSIBLE* (Needs verify with keyboard and meter) the pins for SHIFT and CAPS LOCK are reversed; capslock should be pin 35 and shift pin 33 Page 5-67 Figure 5-43: *POSSIBLE* the KBD-R latch implies that capslock is D6 and shift is D7, when in reality they are the other way round. Hope that helps, If I run into more I'll send to the list as well. -- Jonathan Gevaryahu jgevaryahu at gmail.com jgevaryahu at hotmail.com

14 years

2
1
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Transitional Technolgies Tape Drive Info

by craig.henry＠yale.edu

I have a couple of those drives with some functionality. Did you ever find any doco on them? -Craig Henry Yale Astronomy Systems Admin

14 years

1
0
0 0

prototype floppy media

by tom94022＠comcast.net

http://www.ebay.com/itm/251110295055 looks to me like a prototype cartridge for the IBM 0341 Four-Inch Diskette Drive (aka 3.9-inch) which was announced by IBM in 1983 but shortly thereafter withdrawn in favor of the MIC (Microfloppy Industry Consortium) adaptation of the Sony 3.5-inch design. I don't think any production units ever shipped but evaluation units may have shipped. FWIW, it was a single sided 358 kilobyte FM zone recorded device. The media spec is at bitsavers and promotional material is at the CHM. I have a drive photo in my files Tom

14 years

3
2
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Zenith Minisports revelations

by rampaginggreenhulk＠yahoo.com

someone kindly sent me a picture of the power supplies diagram/sticker. the connector has 9vdc output, 6vdc charge, a grounded shield, and a 5 v signal. what is the "5 v signal"? It's not labeled as an output, nor ac or dc. Is it a pin by which the p/s reads the voltage of the battery, so as to know when to stop charging? The specs state "Output 9V, 2 A max at supply, 6V, 1 A max at charging". ?Anyone have a spare that's surplus to their needs?

14 years

1
0
0 0

Defcon XX

by silent700＠gmail.com

Anyone here going? I'll be landing in LV tomorrow afternoon. I haven't seen any word whether they're doing the great "Retro Room" PDP display again. I never made it there to see it in person. Anything else classiccmp-related that is worth seeing in Las Vegas? -jht -- silent700.blogspot.com Retrocomputing and collecting in the Chicago area: http://chiclassiccomp.org

14 years

5
6
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Looking for DEC VK100 'GIGI' Maintenance print sheets

by jgevaryahu＠gmail.com

Does anyone have a copy of the DEC VK100 'GIGI' Maintenance print sheet set? The mp sheets are DEC part number #MP-00893-00 These are needed for repairing a VK100 and for a project reverse-engineering how the hardware worked. The Tech manual on bitsavers ( http://www.bitsavers.org/pdf/dec/terminal/gigi/EK-VK100-TM-001_VK100_Techni… ) is missing a lot of information I need, and is also rife with errors! I'd be more than willing to scan or photocopy them if anyone has a copy they could lend me. Am fine paying shipping. -- Jonathan Gevaryahu jgevaryahu at gmail.com jgevaryahu at hotmail.com

14 years

3
3
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iPad, was Re: NRI 832 Clock Not Working

by joachim.thiemann＠gmail.com

On Tue, Jul 24, 2012 at 8:59 PM, Tony Duell <ard at p850ug1.demon.co.uk> wrote: >> Sent from my iPad > > Why does anyone need ot know this? > > -tony It's code for: "Forgive me if this message is more lucid than my usual communication. I've typed it on a device with slightly less tactile feedback than a Sinclair ZX-81, and the gnomes inside are drunk, attempting to subtly replace any misspelt word with lewd innuendos as offensive as possible in the given context." Joe. (Sent using a device which was clearly created on a dare: "Yo Steve, I bet not even you can market that silly wireless chicklet keyboard that the PC JR shipped with!" "Oh yeah? Watch my Reality Distortion Field!" <zooooooong>) (And it's actually quite useable, thank you very much...) -- Joachim Thiemann :: http://jthiem.bitbucket.org

14 years

2
2
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iPad, was Re: NRI 832 Clock Not Working

by a50mhzham＠gmail.com

At 04:41 PM 7/24/2012, you wrote: >On Tue, Jul 24, 2012 at 8:59 PM, Tony Duell <ard at p850ug1.demon.co.uk> wrote: > > >> Sent from my iPad > > > > Why does anyone need ot know this? > > > > -tony > >It's code for: > >"Forgive me if this message is more lucid than my usual communication. While your post is amusing and witty, I think perhaps you meant "less lucid." From wiktionary.org: Etymology Latin <http://en.wiktionary.org/wiki/lucidus#Latin>lucidus, >from <http://en.wiktionary.org/wiki/lux#Latin>lux (?light?) + <http://en.wiktionary.org/wiki/-id>-id. Adjective lucid (<http://en.wiktionary.org/wiki/Appendix:Glossary#comparative>comparative more lucid, <http://en.wiktionary.org/wiki/Appendix:Glossary#superlative>superlative most lucid) * <http://en.wiktionary.org/wiki/clear>clear; <http://en.wiktionary.org/wiki/easily>easily <http://en.wiktionary.org/wiki/understood>understood * <http://en.wiktionary.org/wiki/mentally>mentally <http://en.wiktionary.org/wiki/rational>rational; <http://en.wiktionary.org/wiki/sane>sane * <http://en.wiktionary.org/wiki/bright>bright, <http://en.wiktionary.org/wiki/luminous>luminous, <http://en.wiktionary.org/wiki/translucent>translucent or <http://en.wiktionary.org/wiki/transparent>transparent Synonyms * <http://en.wiktionary.org/wiki/clear>clear * <http://en.wiktionary.org/wiki/coherent>coherent * <http://en.wiktionary.org/wiki/fluent>fluent * <http://en.wiktionary.org/wiki/pellucid>pellucid * <http://en.wiktionary.org/wiki/perspicuous>perspicuous * <http://en.wiktionary.org/wiki/straightforward>straightforward * <http://en.wiktionary.org/wiki/see-through>see-through * <http://en.wiktionary.org/wiki/transparent>transparent Sent from my generic home-built AMD based desktop PC. 604 . [Science] In the pure and physical sciences each generation inherits the consequences made by its predecessors, but in the moral sciences, particularly the arts of administration, the ground seems never to be incontestably won. --Unknown NEW: a50mhzham at gmail.com ? N9QQB (amateur radio) "HEY YOU" (loud shouting) ? Second Tops (Set Dancing) ? FIND ME ON FACEBOOK 43? 7' 17.2" N by 88? 6' 28.9" W ? Elevation 815' ? Grid Square EN53wc LAN/Telecom Analyst ? Open-source Dude ? Musician ? Registered Linux User 385531

14 years

2
1
0 0

Serial Connection for UVax II with H8571-B

by mcguire＠neurotica.com

Tothwolf <tothwolf at concentric.net> wrote: >On Mon, 23 Jul 2012, Kevin Reynolds wrote: > >> Hey guys and gals, >> >> I have tried and failed to get a successful connection between my uvax >> II and a pc rs-232 serial port. The H8751-B didn't seem to work, so I >> pulled it off and wired my own MMJ-DB9 connector. I have tested the MMJ >> cable, and it works flawlessly. >> >> For my connectors I have followed "The Cable" documentation at >> http://www.mcmanis.com/chuck/computers/vaxen/panels.htm (chucks house of >> vax), under "The MicroVAX II" section but it hasn't helped. I have >> tested the MMJ-DB9 connection from my uvax III consoles and from the >> microvax 3100 and it works fine, so I think the PC side is working >> correctly. > >The pinout for the cable at Chuck's House of VAX is correct. I just opened >up the connector shells on my own cable which I assembled more than 10 >years ago and verified that it matches the information given there. > >Your other option would be to use a H8571-B on the VAX side connected with >an MMJ cable to a H8571-J (or equiv.) on the PC side. While the two >adapters are both DE-9, the pinouts for each are very different. > >I've used both solutions for my own systems, and I used to make and sell >H8571-J "work alike" adapter cables on eBay (DE-9F adapter with crimpped >pins to 6P6C jack, wired the same as a H8571-H, along with a 6P6C to MMJ >modular cable; I sold 100s of those things). > >If you'd rather not butcher an MMJ cable, I'd suggest finding an H8571-J >adapter (useful with an MMJ cable for many other purposes as well). If >someone else can't supply you with a second hand H8571-J, I do still have >some NOS inventory (still in the original DEC bags) stored away (but not >/too/ difficult to get to) but I paid a good bit for them so I can't just >give those away.

14 years

1
0
0 0

Looking for DEC VK100 'GIGI' Maintenance print sheets

by jgevaryahu＠gmail.com

> On 7/23/12 1:12 PM, Richard wrote: >> In article<500BAEE9.2090102 at gmail.com>, >> Jonathan Gevaryahu<jgevaryahu at gmail.com> writes: >> >>> The Tech manual on bitsavers ( >>> http://www.bitsavers.org/pdf/dec/terminal/gigi/EK-VK100-TM-001_VK100_Techni… >> l_Manual_Apr82.pdf >>> ) is missing a lot of information I need, and is also rife with errors! >> It would be good to have an errata to the technical manual. Can you >> email up a list of the errors you've spotted so far? > that would be a good thing > > GIGI documentation is very hard to find. I'm working on a list of errata (which are currently just pencil notes on a printout of the tech manual), I'll post it when I'm done. -- Jonathan Gevaryahu jgevaryahu at gmail.com jgevaryahu at hotmail.com

14 years, 1 month

1
0
0 0

Unibus termination

by iamcamiel＠gmail.com

Hi Everyone, I'm looking for a decent primer on Unibus termination. I'm a little confused about M9300, M9301, M9302 and M9312. Which is to be used where? Camiel.

14 years, 1 month

2
1
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Ready to Power up the 11/04

by jaquinn2001＠gmail.com

I have the power supply tested and reassembled and am ready to power up the 11/04. I am looking to limit the number of installed boards initially. Certainly the RK05 controller boards can go as I haven't got the drives operational yet. The configuration of the 11/04 as I received it is as follows (hopefully this is readable): M7257 M7257 M9302 M7256 M7256 - M7255 M7255 - M7254 M7254 M920 M7258 M7258 M920 M7856 M7856 - M7860 M7860 - GRANT M9202 GRANT M9202 M7856 M7856 M7850 GRANT M7847 M7847 M7847 GRANT M7847 M7847 M7847 M7859 M7859 M9301 GRANT M7263 M7263 M7263 Looking for some guidance if the following is a valid configuration: GRANT M9302 M7856 M7856 M7850 GRANT M7847 M7847 M7847 GRANT M7847 M7847 M7847 M7859 M7859 M9301 GRANT M7263 M7263 M7263 I am also looking to confirm my understanding of the M9301 card. I have read the maintenance and operators manual for the M9301. I think it is saying that the Console Emulator startup message from the M9301 and the console emulator commands will be available on the terminal... which I take to mean the terminal connected to the M7856 in this machine. Am I understanding that right. Thanks everyone for your help. Regards Andrew

14 years, 1 month

7
25
0 0

C32AX135 or equivalent?

by lists＠loomcom.com

Does anyone happen to have a datasheet for the C32AX135 silicon controlled rectifier? Or know of a suitable equivalent? Thanks, -Seth

14 years, 1 month

6
11
0 0

Tek 611

by holm＠freibergnet.de

I shot an Tek 611 Storage display lately (230820230720), is there documentaion available somewhere? Has someone a left over D/A converter Card for an QBUS 11? I've found a pdf for an AA11-K card which should be connected to such a display but this is a unibus card it seems.. I only have QBUS-gear. Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

14 years, 1 month

8
17
0 0

Serial Connection for UVax II with H8571-B

by cctech＠beyondthepale.ie

> >I have tried and failed to get a successful connection between my uvax II and > a pc rs-232 serial port. The H8751-B didn't seem to work, so I pulled it of >f and wired my own MMJ-DB9 connector. I have tested the MMJ cable, and it >works flawlessly. > >[snip] > I didn't really follow your description of what you have tried. I suspect the DE9 connector you have is not wired for plugging into a pc serial port but is intended for a DE9 connector on some DEC equipment which is wired differently (a VAX 2000 for example). My suggestion for an MMJ to other serial device connection is as follows: Cut an MMJ to MMJ cable in two. Take one end and strip off a bit of the outer insulation. Strip back the two centre conductors and join them together and to signal ground on the pc side. Strip back the next two outer conductors and connect one to TX on the pc and the other to RX on the pc. Ignore the two outer conductors. Plug in and test. If it doesn't work, swap the conductors going to TX and RX and try again. Regards, Peter Coghlan.

14 years, 1 month

1
0
0 0

Anybody have 1991 BYTE scans?

by microcode＠zoho.com

Does anybody have scans of the 1991 BYTE magazine? I'd like to get copies if you have them. Thank you.

14 years, 1 month

1
0
0 0

XT-IDE V2 PCBs

by LYNCHAJ＠yahoo.com

Hi! Several builders have asked about the XT-IDE V2 PCBs and I have reordered a batch. They should be here the second week of August. They will be identical to the previous batch of boards. I will announce when the PCBs arrive. Please do not send any funds until the boards arrive. They will be $12 each plus $2 shipping in the US and $5 shipping elsewhere. After I announce the boards have arrived please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your boards right away! Thanks and have a nice day! Andrew Lynch

14 years, 1 month

13
32
0 0

someone was looking for a Tandy 2000 k/b...

by rampaginggreenhulk＠yahoo.com

sometime ago when I offered a non-working unit. I have one, the only problem is it's missing the plastic "whistles", or at least that's what they resemble, that allow you to set it at an angle on a table. I don't think I have them anywhere unfortunately. If you're interested, as is, should work (it was my original!), 5$ plus shipping from 08758.

14 years, 1 month

1
0
0 0

GNT 4601 reader/punch documentation

by michael.99.thompson＠gmail.com

Thanks Mike, Al, and Bob for the GNT information. That should be plenty to get repairs going. -- Michael Thompson

14 years, 1 month

1
0
0 0

N8 availability

by LYNCHAJ＠yahoo.com

Hi! Some of the N8VEM builders have gotten their N8's assembled and tested. They are working fairly well and the new SD circuitry seems to check out fine. There is a new MSX BIOS and CP/M ROM image posted and photos of one of the builds on the wiki. There is actually quite a bit of information and ongoing discussions on the N8VEM mailing list. Here is a sample photo one of about a dozen or so. http://n8vem-sbc.pbworks.com/w/file/55421880/NS-2312_working_with_Floppy_DSK Y.JPG http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=N8-2312%20Marti n%20Lukasek I still have some N8 PCBs so if anyone would like to build their own complete home brew computer from scratch please let me know. Please see the N8 description below for what it can do. http://n8vem-sbc.pbworks.com/w/page/54039670/N8%20announcement Thanks and have a nice day! Andrew Lynch

14 years, 1 month

1
0
0 0

DG Nova 3

by cc＠informatik.uni-stuttgart.de

Hi everyone, we have finally received our first Nova. It was installed in a classroom at a school where they taught some basics of computer science. They bought it new in 1978 and used it until 1986. All parts still look like new, no obvious yellowing or worn fronts. The system consists of the Nova 3/12 and 6050-2 cartridge disk drive in a 19" high-boy cabinet and two terminals, a Dasher 6042 printing terminal and a Dasher 6052-2 CRT terminal - both have a very cool design! Now to my question ;-) The system came with several cartridges (containing RDOS and BASIC, as far as I can tell), but *no* manuals. I haven't found any manual for our system components on the net (nothing on bitsavers, too). Does anyone have scans/images? I would need at least the Nova 3 printset and diagnostics (e.g. papertape images) in case it needs repair or maintenance. After all, even if the power supply and CPU seem to work, I'd like to be sure everything is ok after 26 years. (The former user, a teacher, didn't even know that you could dismantle the rack, nor did he ever pull out the CPU or the power cable from the rack...). Christian PS: Repairing the key switches in the terminal keyboards (disintegrated foam) is another story...

14 years, 1 month

3
2
0 0

Heathkit H89 maybe?

by dbetz＠xlisper.com

It looks like I'm back in business collecting vintage computers. I went to the town dump today and found what looks like an H89 but the model number tag on the back says NN89-29. I haven't tried opening it up to see what's inside yet but it has a floppy drive so I assume it isn't just a H19 terminal. Also, on the front it says "Heathkit Computer". Even though I've had vintage computers before I've never followed good procedures when trying to bring them up. Usually, I just plug in the power cord and hope for the best. I'd like to do a little better this time. Can anyone suggest an approach to bringing this beast to life that minimizes the chances that I'll fry it the first time I power it on? Thanks, David

14 years, 1 month

5
11
0 0

DG Nova 3

by cube1＠charter.net

I have some of what you may need, but will need to scan it in. I do not have a full print set - unlike Dec, those are more rare in the dg world. But I won't be able to do anything until mid august. Check bitsavers.org, and also contact wildharecomputers.com Christian Corti <cc at informatik.uni-stuttgart.de> wrote: >Hi everyone, > >we have finally received our first Nova. It was installed in a classroom >at a school where they taught some basics of computer science. They bought >it new in 1978 and used it until 1986. All parts still look like new, no >obvious yellowing or worn fronts. The system consists of the Nova 3/12 and >6050-2 cartridge disk drive in a 19" high-boy cabinet and two terminals, a >Dasher 6042 printing terminal and a Dasher 6052-2 CRT terminal - both have >a very cool design! > Now to my question ;-) The system came with several cartridges >(containing RDOS and BASIC, as far as I can tell), but *no* manuals. I >haven't found any manual for our system components on the net (nothing on >bitsavers, too). Does anyone have scans/images? I would need at least the >Nova 3 printset and diagnostics (e.g. papertape images) in case it needs >repair or maintenance. After all, even if the power supply and CPU seem to >work, I'd like to be sure everything is ok after 26 years. (The former >user, a teacher, didn't even know that you could dismantle the rack, nor >did he ever pull out the CPU or the power cable from the rack...). > >Christian > >PS: >Repairing the key switches in the terminal keyboards (disintegrated >foam) is another story...

14 years, 1 month

1
0
0 0

Old scans of 73 magazine available

by microcode＠zoho.com

http://archive.org/search.php?query=collection%3A73-magazine&sort=-publicda…

14 years, 1 month

1
0
0 0

GNT tech docs

by asc135＠gmail.com

> > This might be a second post, I got a weird error message the first time. > > > I just scanned my technical manual for the GNT 4604/5 which has many references to the 4601. > > It does include schematics. You can find it here: > > http://www.dvq.com/docs/GNT/ > > Bob > Many, many, many thanks! I bought a new-old-stock GNT-4604 about a decade ago. It was so exciting to open the foil seal and --- nothing worked. I did find the problem. It had cold solder joints on the control board. But having the service manual means I can keep it running for years to come. I also have a GNT-4601 so I'm doubly appreciative. Your work will not have been in vain! Amardeep

14 years, 1 month

1
0
0 0

Amiga for sale in OC , Ca

by jws＠jwsss.com

Not my listing, but close to my house if anyone is interested and needs help. http://orangecounty.craigslist.org/sys/3151437047.html

14 years, 1 month

8
13
0 0

USB to GPIB interface

by elson＠pico-systems.com

Date: Sat, 21 Jul 2012 21:31:20 +0100 (BST) From: ard at p850ug1.demon.co.uk (Tony Duell) To: cctalk at classiccmp.org Subject: USB to GPIB interface Message-ID: <m1SsgKj-000J4gC at p850ug1> Content-Type: text/plain It's of no real interet to me at the momnet (obivously) but this month's Elektor magazine (the summer double issue, so it's not cheap!) has a project to make a USB to GPIB interface. It's little more than a programemd PIC which directly drives the GPIB lines without buffers. I don't like that much, but... I think you can get source code for the firmware (apart from the USB routines, which are standard routins from Microchip). I have successfully controlled some GPIB gear with just a parallel port, not even a pullup resistor needed. Jon

14 years, 1 month

4
3
0 0

Serius/Victor 9000 printer port

by ard＠p850ug1.demon.co.uk

With reference to my reply to Chuck's message, I've now dug out the schematics. The Sirius printer interface uses a 6522 VIA (at location U15L o nthe mainboard). Port A is bufferec by a 75160 and fet ot the data pins on the 'Centronics' connector. Port B is used for the handshake lines, in ascending bit order : DAV, EOI, REN, ATN, IFC, SRQ, NRFD, NDAC. Tese are bufferec by a 75161, always in controller mode (DC is grounds). NRFD and NDAC (o nthe 'host' side of the buffer) also go to CA1 and CA2 (respsecviely) of the VIA The 'Talk' (buffer direction) line is controlled by PB0 of the 'system VIA' at loccation U12L The pinout of the 'Centroics' socket is : DAV 1 19 Gnd D0 2 20 Gnd D1 3 21 Gnd D2 4 22 Gnd D3 5 23 Gnd D4 6 24 Gnd D5 7 25 Gnd D6 8 26 Gnd D7 9 27 Gnd NRFD 10 28 Gnd SRQ 11 29 Gnd N/C 12 30 N/C NDAC 13 31 N/C J 14 32 NDAC EOI 15 33 Gnd Gnd 16 34 REN FG 17 35 ATN NC 18 36 IFC A couple of non-obvious ones : 'J' (pin 14' is connected to ground via the jumper E26-E27 (which is not normally fitted I think). FG is frame ground (mains earth), not logic ground. I/O chips i nthe Sirius seem ot be memory mammed for some odd reason. I think the addresses are : GPIB VIA : 1110 1xxx xxx0 001x rrrr System VIA : 1110 1xxx xxx0 010x rrrr where rrrr is selexts the VIA register in the obvious order. -tony

14 years, 1 month

1
0
0 0

Apple ][ disk/game server

by legalize＠xmission.com

This is a nice idea! Feeds the disk images to your Apple ][ by hooking up your ipad/computer/etc. audio output to the cassette input. <http://asciiexpress.net/gameserver/> <http://asciiexpress.net/diskserver/> -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

14 years, 1 month

16
27
0 0

GNT 4601 reader/punch documentation

by michael.99.thompson＠gmail.com

Does anyone have schematics for a GNT 4601 reader/punch? -- Michael Thompson

14 years, 1 month

3
2
0 0

Looking for Unibus and Qbus extender cards

by iamcamiel＠gmail.com

Hi everyone, I'm getting ready to see if I can get all those PDP-11's running properly. I have most of the test equipment I'm likely to meet - multimeter, oscilloscope, current tracer, logic analyzer - but figured that extender cards for Qbus and Unibus might come in very handy. Does anyone have any they'd be willing to part with? Camiel.

14 years, 1 month

11
16
0 0

TNIX 2.1

by aek＠bitsavers.org

I spotted a listing for the TNIX user manuals and a set of floppies in Tucker's manual list, so there is a standalone disk and a dump of the file system with the native tools package on bitsavers now, along with the manuals. The standalone formatter seems to be really fussy about what kind of disk it will format. I tried a Seagate ST4096 and a Maxtor 1140, and couldn't get either to go even though they had more heads and cylinders than the Micropolis 1304.

14 years, 1 month

1
0
0 0

USB to GPIB interface

by ard＠p850ug1.demon.co.uk

It's of no real interet to me at the momnet (obivously) but this month's Elektor magazine (the summer double issue, so it's not cheap!) has a project to make a USB to GPIB interface. It's little more than a programemd PIC which directly drives the GPIB lines without buffers. I don't like that much, but... I think you can get source code for the firmware (apart from the USB routines, which are standard routins from Microchip). May be of interest to somebody here.... -tony

14 years, 1 month

2
1
0 0

Minigame Compo 2012 officially started (submit by Nov 30 2012)

by barythrin＠yahoo.com

Just spreading the word amongst a few of the groups that may have interest and talent in older and more efficient programming past. http://minigamecompo.weebly.com/index.html has begun and will be accepting submissions I believe until November 30th (2012). For those who aren't familiar this is a competition to write the best game they can in the category of under 1k, 2k, or 4k of code for various (usually 8-bit) platforms. They have some screen shots of previous programs that have competed to see what sort of stuff comes out of it. I always find it entertaining. I have no affiliation with them, just helping spread the word since I haven't seen it announced in my usual hangouts yet. - John

14 years, 1 month

1
0
0 0

Whereabouts of Arthur Gill

by vaxorcist＠googlemail.com

Is: Arthur Gill author of: "Machine and assembly language programming of the PDP-11" still alive? Anyone knows how to get in contact? Regards Ulli

14 years, 1 month

1
0
0 0

pertec rk05 rack ebay listing :'( my F bomb alert. ran frustration

by tdk.knight＠gmail.com

sigh theres a buisnes partner fight going on and i am caught in the midle GAH!!!!!!! to tune of 1300 bucks.......... something i paid for has been relisted under the partners new account sent him a msg unhappy don't bid http://www.ebay.com/itm/Vintage-Computer-Equipment-Pertec-T6840-9-45-U2-DEC… an ebay complaint has been filled and reported blah blah blah i have now got a paypal dispute finally txs to this re-listing and its pretty esay to prove its the same item the origonal listing i won from user uncolect whos sold me many things befor this happened and shipped them so i am upset wish he coulda phoned me i only left him my number half a dozen times......... http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160748462238&ssPageName=… i feel like crying all i wanted was my rk05's and pertec god damit why did it have to come to this now what am i guna do with my pertect interface card i got :"(

14 years, 1 month

2
2
0 0

E&L Instruments Fox 1 Z80 Trainer chip questions

by INFATEC-Soellner＠t-online.de

Hello robo Are you still interested in information about FOX MT80? I could provide You with original manual and schematics. With best regards Heinrich ____________________________________________________________________________ _________ INFATEC Ingenieurb?ro f?r Automatisierungstechnik GmbH Leo-Rosenblatt-Weg 2b D-30453 Hannover Heinrich S?llner Telefon +49 (0) 511/8094048 Telefax +49 (0) 511/8092310 home <http://www.infatec-gmbh.com/> www.infatec-gmbh.com E-Mail <mailto:INFATEC-Klebl at t-online.de> INFATEC-Soellner at t-online.de Gesch?ftsf?hrer: Rolf Klebl Sitz der Gesellschaft: Hannover Registergericht: Hannover HRB 54 193 Hannoversche Volksbank 4813 499 600 (BLZ 251 900 01) ____________________________________________________________________________ _________ DIESE EMAIL IST VERTRAULICH UND KANN DEM BERUFSGEHEIMNIS UNTERLIEGEN. WENN SIE NICHT DER VORGESEHENE ADRESSAT SIND, BENACH - RICHTIGEN SIE UNS BITTE UNVERZUEGLICH MITTELS EMAIL UND LOESCHEN SIE DIESE NACHRICHT AUS IHREM SYSTEM. THIS EMAIL IS CONFIDENTIAL AND MAY ALSO BE LEGALLY PRIVILEGED. IF YOU ARE NOT THE INTENDED RECIPIENT, PLEASE NOTIFY US IMMEDIATELY BY EMAIL AND THEN DELETE THIS MESSAGE FROM YOUR SYSTEM. ____________________________________________________________________________ _________

14 years, 1 month

2
1
0 0

road trip from Champaign, IL to Denver, CO and back

by useddec＠gmail.com

One of my sons will be driving to the Denver area next week and will have a limited amount of space and time to drop things off if I have anything you might need. Also, If you have some DEC items, I might be interested in working out a trade. Please contact me off list. Thanks, Paul

14 years, 1 month

1
0
0 0

Vintage IC and INMOS transputer parts for sale in Vancouver, WA

by tosteve＠yahoo.com

Hello, Buddy in Vancouver WA has stuff to sell, contact him for more info: ===================================================================== Buddy says: I have some vintage ICs that I am trying to sale. Some of them are INMOS transputer boards and documents. Buddy Woodberry buddy-l at qwest.net Vancouver WA ===================================================================== I posted his pictures here: http://oldcomputers.net/temp/pic1.jpg http://oldcomputers.net/temp/pic2.jpg http://oldcomputers.net/temp/pic3.jpg http://oldcomputers.net/temp/pic4.jpg http://oldcomputers.net/temp/pic5.jpg

14 years, 1 month

1
0
0 0

Sync on something other than green for the sake of all that is holy

by rampaginggreenhulk＠yahoo.com

omg how about tweaking the monitor

14 years, 1 month

6
20
0 0

Megahaul on July 4th

by iamcamiel＠gmail.com

Hi Guys, Today me and my brother (truck driving license, no interest in old iron) had the biggest haul of DEC stuff I ever had (ex-collector moving to a smaller apartment). I'm picking up a second load in a week or two. Pictures at http://www.flickr.com/photos/7816395 at N04/sets/72157630422540146/ A quick inventory: PDP stuff: - PDP 11/44 - PDP 11/84 - 3 x RL02 - Professional 325 - Professional 350 VAX stuff: - 12 x BA213/BA440 pedestal VAX systems (MV3400, VAX 4000/200,300,500A, ...) - 3 x R400X storage pedestal - 3 x R215F storage pedestal - 47 x pizzabox VAX systems (MV3100, VAXstation 4000, Infoserver 150, ...) - 22 x pizzabox storage expansion - 4 x lunchbox VAX systems (MV/VAXserver/VAXstation 2000) - 11 x lunchbox storage expansion MIPS stuff: - DECsystem 5400 (pedestal) - 2 x Personal DECstation 5000/25 - DECstation 2100 - DECstation 5000/133 - DECstation 5000/200 Alpha stuff: - 2 x DEC3000 Miscellaneous stuff: - VAXmate PC500 w/RCD31 expansion box - 2 x HSZ40 - 18 x StorageWorks BA350 - 6 x StorageWorks BA353 - DECNIS 600 w/ DNSAN, DNSAM,W614/618,L602 - 5 x DECserver 700 - 3 x DECserver 200/MC - LANbridge 200 - Lots of DEChub stuff - Lots of manuals, cables, spare cards, spare disks, etc... I need to remind people not to send any more donations for the next few months while I sort this stuff out. I won't keep it all, so I'll probably post some messages here in the next few months to sell or give away some of it. Some of it may have to end up in the bin eventually (like storage expansion boxes with broken drives) Does anyone here have any experience with the Professional systems and the VAXmate? I believe the latter is an 8086 system, is that correct? Would the DECNIS stuff still be of use to anyone? Cheers, Camiel

14 years, 1 month

22
39
0 0

Names

by cclist＠sydex.com

Chris, thank you for respecting my wishes. --Chuck

14 years, 1 month

1
0
0 0

apologies to Chuck G.

by rampaginggreenhulk＠yahoo.com

denigration was nowhere in my thinking when I uttered the unspoken term. In fact I think there's a person on one of these forums that adopted the nickname Chuckster. But in any event it won't happen again.

14 years, 1 month

1
0
0 0

Cable ID?

by saquinn624＠aol.com

I have two cables that I've been trying to figure out what they're for. They're both commercial, with molded-in ends. The one that I've gotten furthest on is a video/keyboard cable of some sort, 8-ft long, DA-15F on one end with a box on the other end splitting out into what appears to be PS/2 keyboard and mouse ports (Mini-DIN 6, labelled "KBD" and "MOUSE") and 3BNC R/G/B video connectors. If it was LK-style I'd think DEC, as it is I was thinking X-Terminal, but all the X-terminal pictures I've seen have local keyboard ports and more "ordinary" graphics connectors. There is a part number, 012-1369-00, that when Googled comes up as Tektronix 4200/4300 workstation, but again those don't seem to have the right ports. No manufacturer name. Second has no markings. 9-ft 13W3F to 13W3M, which seems simple enough, but the signals are put through two separate cables and the RGBS portion is broken in the middle and there are two sets of BNC M connectors on them. Other pins are wired straight through. Perhaps connects to some sort of splitter?

14 years, 1 month

2
1
0 0

Cattle Call for extras for Jobs Movie

by jws＠jwsss.com

link here http://www.beinamovie.com/movie.php?mtitleid=115 for Monday and Tuesday 7/16 and 7/17 in Pasadena. I didn't send earlier notes for this movie, but figured that this note would be of slight interest to anyone who could make it. The scenes we're part of will be the 1983 PC Conference (Monday the 16th) and the 1977 Computer Jobs Faire (Tuesday the 17th) Maybe some here were at those conferences, and won't barf at the thought of being in a movie about Jobs. Jim

14 years, 1 month

2
1
0 0

For Sale: DEC W021B cables and RS11 Disk Drive Write Lockout Panel

by rickb＠bensene.com

Hello, all, I have four DEC W021B cables with FlipChip paddles at both ends. The cables are roughly 8 feet long including the paddle boards at both ends. The cables are nine coaxial (signal and ground) cables bonded together into a single flat black cable. The paddle fingers are gold plated, have light surface corrosion on them, and have light signs of insertion/removal from backplane sockets. Each W021B cable has nine signal lines, each with a separate ground. These cables were originally used to connect and RF11 Unibus Disk Controller chassis to an RS11 disk drive based on labels on the paddle boards. The same cables were used to connect peripherals (such as DF32 or RF08/RS08 disk) to the original Flip-Chip based PDP-8 processors (Straight 8, 8I and 8L). The cables are untested. I also have a single RS11 disk drive "Write Lockout" switch panel with cable and paddle connector for connecting it to an RS11 disk drive backplane. This panel provides sixteen toggle switches that can be set to provide write protection for sixteen separate blocks of 16K words on the disk. The panel has a flexible ribbon cable that is about 12 inches long that connects to a Flip Chip paddle connector with a white handle with designation of W033. The switch panel itself is in very good condition, with very clear legends with no dings or dents. The ribbon cable has some slight delamination in some areas, and one trace may not have electrical continuity based on a visual observation. The W033 paddle connector is in very good condition, with virtually no sign that it has ever been plugged into a Flip Chip slot. All of the very high quality switches move freely, and are original switches from the era, with no sign of replacement. The unit is untested. I would like to sell these items. Please read carefully below the "rules" before bidding. Sorry they are so detailed, but I want to make sure that the rules are clearly understood by all. I am accepting offers for each individual item on a per unit basis. For example, bids will be accepted for each of the W021B cables and the RS11 Write Lockout panel assembly separately. Bids must be sent in individual Emails, e.g., do not send a bid giving an offer for all four W021B cables, or one cable and the RS11 write lockout panel. Such bids will be dismissed without notice. Bidders need to send separate Emails with bids for each of the individual items of interest. The items will sell to the highest offer received via Email to me (i-t-e-m-s *at* b-e-n-s-e-n-e *dot* c-o-m [no dashes and substitute correct symbols for *at* and *dot*]) for each item by 11:59 PM Pacific Daylight Time on Sunday 22-July. Bids received at Email addresses other than that listed above will be dismissed without notice. Duplicate bid amounts for an item will be arbitrated by the first Email received in my inbox prior to the deadline. A flat rate charge of $15 will be paid by the winning bidder for packing/shipping unless arranged otherwise. Once the high bidder is determined, they will be notified by return Email on Monday 23-July. Payment shall only be accepted by PayPal, and must be paid in full including shipping within two business days once final costs notification is sent to the winner. If a winner does not respond to notification Emails within the deadline, backs out or fails to pay, the sale is considered to have failed, and the item will not be awarded to lower bidders. If an individual provides the high bid on multiple items, packing/shipping can be combined to minimize costs. Shipping will be done by USPS Flat Rate Priority Mail unless arranged otherwise. Items will ONLY be shipped to continental US locations. I will not ship overseas, or to Alaska, Hawaii, Mexico, or Canada. If you are not from the continental US, please do not bid. Photos of items can be Emailed upon request. Sales shall be final with no returns. If no high bids are received, the items will be auctioned on eBay. I wanted to give the Classic Computer mailing list members first opportunity to acquire these unusual vintage items. Please don't hesitate to write if you have questions about the items. I will do my best to respond promptly. Rick Bensene

14 years, 1 month

1
0
0 0

totally free - Sperry Portable MS-DOS 2.11 + GW BASIC manual and slipcover

by rampaginggreenhulk＠yahoo.com

Good shape. Send me your address.

14 years, 1 month

1
0
0 0

need specifics on Siemens HB2183L monitor

by rampaginggreenhulk＠yahoo.com

scan rates primarily. Donkashane!

14 years, 1 month

1
0
0 0

URL for original EMACS macros in TECO?

by legalize＠xmission.com

Anyone got one? I'm curious to look at it. According to <http://www.xemacs.org/Documentation/21.5/html/internals_3.html>, it was a merger of TECMACS and TMACS. -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://computergraphicsmuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

14 years, 1 month

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cctalk Digest, Vol 107, Issue 35

by bqt＠update.uu.se

On 2012-07-14 16:04, cctalk-request at classiccmp.org wrote: > Message: 26 > Date: Sat, 14 Jul 2012 09:31:41 -0400 > From: Rick Murphy<rick at rickmurphy.net> > To:cctalk at classiccmp.org > Subject: Re: OS/8 dates (was TECO ^B on OS/8 and RT-11) > Message-ID:<201207141331.q6EDVgHs011761 at rickmurphy.net> > Content-Type: text/plain; charset="us-ascii"; format=flowed > > At 05:17 AM 7/13/2012, Johnny Billquist wrote: >> >Ooo. So TECO-8 actually lie in their documentation... Even worse. >> >A year in the range 1986-1994 would just have looked like 1970-1977. >> >That's ugly of them. > You're quite correct. Clearly this*is* a TECO-8 bug - I thought it was > at least following the docs but they're just ignoring the high-order > date bit. Unfortunately, fixing this (as in making it compliant with > the documentation) isn't easy as that page is full. And "fixing" it > would just give different wrong values since you can't squash 14 bits > into 13. > > Mea culpa. TECO Fail, indeed. Yeah... I tried to figure out a fix to atleast do what the doc says, but I end up using one more word than the current code. :-( Hmm, possibly I can get away with it, if there is a free location, or a constant 0060 on the current page, or page zero already, and the link is already clear at entrance of the routine... But it's hacky. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

14 years, 1 month

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who is the resident Burroughs terminal expert??

by rampaginggreenhulk＠yahoo.com

I have a guy wanting to sell me an old airport terminal. Oi. Anyone want to peruse the pictures? I'll send them out if you're interested.

14 years, 1 month

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A few 85xx uploads

by aek＠bitsavers.org

under http://bitsavers.org/bits/Tektronix Changed 856x to 8560 and created 8550 and 8562 directories There is an untested DOS/50 boot disk image under 8550 It's probably OK. The files extracted correctly on the 8562 Under 8562: The boot block for the 8562 (which appears to be different from the one on the V2 update floppy from the 8560) and a small program to create an IMD file with a payload >from stdin, so you can, for example, make a floppy with a tarball that can be read on /dev/rfd0 on the 8562. Curiously, Tek didn't include dd with Tnix, so I'm going to tar over the source and stock V7 dd binary to see if an unmodified binary will run, and if not, compile it over there. I'm a little nervous that the 8562 stanalone utilities disk may be needed to restore the disk instead of the one from the 8560, since the boot doesn't work quite the same way (the 8562 reads /boot from the disk, while the 8560 just loads 'tnix')

14 years, 1 month

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Altair 8800 Kit - Paging Grant Stockly

by lists＠loomcom.com

Has anyone heard from Grant Stockly recently? The Altair Kit forums have fallen into the hands of spammers, and I haven't been able to reach him through email. He announced a new sale of kits in early June, but I didn't find out about it until last week. I was hoping to get in on it. -Seth

14 years, 1 month

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Sync on something other than green for the sake of all that is holy

by spectre＠floodgap.com

Over the weekend, having gotten a beautiful, perfectly circular round tuit, I cracked the root password on my SGI Indy (tip of the hat to Doc Shipley) and got the system fully operational. It's a little poky, so I suppose the next thing is to upgrade the CPU module and get a 24-bit video card in it (8-bit is yugly). However, in the meantime, I'm using a cheapo 13w3 to VGA converter that works okay with my NEC monitor, but there is still a sync signal on the green line, leaving me with a persistent green tint. Reducing green gamma in IRIX helps some, but I'd like to get my black back (because once you go black, well, you know). What are people using to turn SOG into a more conventional sync signal an off-the-shelf multisync monitor like my NEC XV15+ VGA display will accept? -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Diamonds are forever. ------------------------------------------------------

14 years, 1 month

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HP diode 1901-0884 HP 2113 PSU

by hp-fix＠xs4all.nl

Does somebody knows what I can use as replacement ? One of the 5V rectifier diodes from my HP 2113 PSU (HP 5061-3476) died, and I can't find the equivalent part number for it. -Rik

14 years, 1 month

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Dilog DQ153

by elson＠pico-systems.com

Date: Sun, 15 Jul 2012 13:23:38 +0200 From: Camiel Vanderhoeven <iamcamiel at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>, "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> Subject: Dilog and ACT UNIBUS module identification Message-ID: <CA+0-H5QfbaQUMRa8zK7N91Bft+NVJqkZhD6y+kCARnC2NjPkKg at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 I can't find anything on these two UNIBUS modules: - ACT 10197-0 - DILOG 153078 I believe a Dilog DQ153 is a Pertec-formatted mag tape controller. I used one in my system. The label you are reading is probably the blank board part #, there should be a silkscreen label on the front of the board. Jon

14 years, 1 month

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Needed : idle line motor controller

by nico＠farumdata.dk

... for one of the Teletype ASR33's in the danish IT museum I'm located in Denmark (obviously!) where we use 220VAC. However, the TTY runs off an 220/117V transformer, so there should not be any problems building the controller into the stand Thanks Nico -- I am using the free version of SPAMfighter. SPAMfighter has removed 415 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len Do you have a slow PC? Try Free scan http://www.spamfighter.com/SLOW-PCfighter?cid=sigen

14 years, 1 month

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mounting a 2.5" drive over an unused PC expansion slot

by aek＠bitsavers.org

I'd like to mount a couple of SSDs on top of a couple of unused card slots in a server and figured someone must have made a bracket for doing this. Has anyone seen one, and if so, what is it called? It's easy enough to make with a piece of aluminum and a bracket with two long L flanges but I'd like to just buy the things if they exist.

14 years, 1 month

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WANTED: KM11 and PDP-11/40 Maintenance Printset

by lists＠loomcom.com

I've finally reached the stage of my PDP-11/35 restoration where I'm ready to turn it on and debug logic. A copy of the PDP-11/40 Maintenance Printset would be INCREDIBLY helpful, as would a bus extender and a KM11. Ideally, I don't want to buy these - this is a one-off project for me, I'd really like to borrow them for about 1-2 months and then return them. I'd be happy to pay a "rental" fee, even. I'm located in the SF Bay Area, if someone local can let any of these go for a little while, I'd be quite grateful. Thanks! -Seth Morabito PDP-11/35 Restoration Blog: http://www.loomcom.com/blog/

14 years, 1 month

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Cleaning out my computer collection

by slandon110＠gmail.com

I have the following items for sale Apple II SCSI Card- Works great, will include a copy of the SCSI Utilities disk $175.00 Apple II MicroDrive- Made by ReactiveMicro, Allows you to use IDE or CF Cards with your Apple II or IIGS. Will include a IDE-CF Adapter $250.00 Kaypro II- Mint condition with all books and software $200 Commodore SX64 Mint condition with FastLoad Cartridge, original software, carry bag, owners manual $250.00 2 SGI Indigo Systems with monitor, keyboard and all kinds of manuals/software- FREE If you pick up 1 Sun Blade 2000- FREE If you pick up 1 IBM RS/6000 43P Model 150- FREE If you pick up Will have more as I get through it. Shipping is extra, Local Pickup is welcomed in Flushing Michigan PayPal Preferred

14 years, 1 month

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OS/8 dates (was TECO ^B on OS/8 and RT-11)

by bqt＠update.uu.se

On 2012-07-13 19:00, "Jerome H. Fine" <jhfinedp3k at compsys.to> wrote: >Johnny Billquist wrote: >> >[Snip] >> >Ooo. So TECO-8 actually lie in their documentation... Even worse. >> >A year in the range 1986-1994 would just have looked like 1970-1977. >> >That's ugly of them. > What seems even more evident to me is that DEC took > (as most other companies did as well) the attitude that > even the internal representation of date and time was > not important enough to allow the same information to > be exchanged between operating systems on a consistent > basis. Sorry, but I fail to see the point. The internal representation of a date will almost by necessity be different between different OSes and hardware. Having a bunch of 16 bit values represent a date on a PDP-8 would be incredibly stupid and difficult, not to mention that OS/8 have no concept of time to more detail than a day. And even that needs to be updated manually every day. So, ignoring the internal format, which can't really be portable anyway, you then get to representation. There will always be dates that cannot be represented in whatever format you choose. So what is the point of bringing up that argument? It is nice if the dates that you might reasonably expect to be processes be possible to express on the system. As for communicating with other systems, in the communication I would suspect/expect that you use an intermediate format (a nice text string for example) that both agree on. And then you can convert from the internal format to and from this intermediate format, as long as the date is within a range expressable on that system. When you go outside the date range for the system, you can either try to do something reasonable, or give an error. I think that is a choice that is best left to the writers of the code to decide on a case by case basis. By the way, Unix express time as a number of seconds since Jan 1, 1970, 00:00 UTC. And time is horribly complex. You know that even if we keep it fairly modern, different countries switched from Julian dates to Gregorian dates at different times, the last being Russia, in the early 20th century. If you really think that you can come up with a reasonable, portable design, that is "universal", I think I know of a few organizations that would like to hear from you. Until then, I'm pretty much satisfied with things the way they already are. Yes, OS/8 have been broken for 10 years now. But to fix it require more than just changing the internal storage for the date. RSX got fixed, and depending on which bits you look, it might stop working right 2070(?), 2099, 2155 or 34667. I don't know about RT-11, but I do know that RT-11 is totally separate >from RSX, and any problems are not shared, but unique. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

14 years, 1 month

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(OT) Odd HP electrolytic capacitor ratings

by cclist＠sydex.com

I'm getting around to doing some work on my veneered and generated HP5307A frequency counter. Looking at all the gold-plated PCB goodness inside, the first thing that jumps out at me is a bulging electrolytic. It's a 940 uF, 40V unit. Not 1000 uF, but 940. Not 50V, but 40V. I'm going to substitute a pair of 470uF, 50V units paralleled as a substitute, but this had me wondering if anyone knows why the strange values, particularly since +/-20 percent tolerances are common on electrolytic caps. --Chuck

14 years, 1 month

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HTTP date header in TECO

by legalize＠xmission.com

OK, here's what I believe is a correct macro for inserting the current date and time as an HTTP Date header, portable across different TECO environments as best I can make it. I tried to login to the TOPS-10 machine at pdpplanet, but encountered difficulties. Therefore, I have only tested this end-to-end on a Win32 environment where I'm running TECOC. I started with DATE.TES in the TECOC distribution and changed things around to try and make it as small as possible when squished. Right now I'm at 1,109 bytes of squished TECO. I could squeeze out 33 more bytes if I change the code that builds up a string containing the days within a month by replacing the 31 at I// commands with an insert using literal control characters but I'm trying to keep my source file free of control characters, with a small concession for ESC characters. If others are willing to try this on their TECOs and tell me the results, that would be great. The environments that are different >from my test environment are: PDP-8, OS/8 Different date, time encoding PDP-11, RT-11 Different date encoding PDP-11, RSTS/E Different date, time encoding TOPS-10 Different date, time encoding TOPS-20 Different date, time encoding <http://user.xmission.com/~legalize/vintage/http-date.zip> If you're not in my time zone (Salt Lake City, -0600 from GMT), you will want to change -0600 in the macro to the appropriate offset. Some observations from doing this little sub exercise: - nQq extracts the nth character code from the string portion of Q-register q. Using another Q-register as the numeric argument to this command confused the parser of my TECO, hence the use of an intermediate Q-register by doing 'Q0QM U1'. It didn't uniformly confuse my TECO, so there were some cases where I could use QqQq directly in some expressions. This might cause a portability issue for other TECOs. - I could make this macro much shorter if I hard-coded the date and time decoding for a particular OS. - I could make this macro much shorter if I hard-coded the time zone offset from GMT, or even just lied and pretended my web server's local time *was* GMT. - Indexing the string %SunMonTueWedThuFriSatSun% and inserting 3 chars was much less code than doing a comparison for each value. - Extracting repeated code into a macro was most effective in reducing squished size. - The string portion of a Q-register can be viewed as an array of bytes; I use this to build an array of days in each month. This reduced the size of code computing day-in-a-year from day/month and day/month from day-in-a-year. The array is also used to handle underflow and overflow when applying the GMT offset. - I made the labels reasonably small in order to squeeze out more bytes, but since I don't use more than 96 labels, I could have reduced them to a single character. I decided against this. - SQU.TEC will recursively squish my macro definitions, but I kept running into a problem with the day and month strings I was loading into 1.str until I re-read the SQU.TES source and learned that if I use % as the delimiter, then SQU will not treat these Q-register string loads as macro definitions, but as literal text. - Computed goto @O!tag0,tag1,tag2! made it easier to handle decoding the different date/time formats in different environments. - You can't insert or append character codes directly into a Q-register, but you can insert character codes into the buffer and pull a portion of the buffer into a Q-register. - DATE.TES reports the wrong day of the week, probably because it uses an algorithm that is no longer valid for years > 1999. I switched to the Sakamoto, Lachman, Keith and Craver algorithm published in Wikipedia. This also eliminated me having to compute day-within-year. - n%q can be used to add n to Q-register q, avoiding the Qq + n Uq phrase, but n%q leaves the result as a numeric argument to the next command, so ESCs must be inserted to gobble these up. - TECO numeric expressions have no operator precedence and are evaluated strictly left to right. Sometimes this means that extra parenthesis are necessary to get the right evaluation order and other times parenthesis can be omitted and still retain the proper evaluation order. Squished output, made printable: =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= !HTTP-DATE.TEC![M[D[Y[H[N[S[0[1@^UY\0J31I$QY&3"=29I$|28I$'31I$30I$31I$30I$31 I$31I$30I$31I$30I$31I$0XM0K\@^US\U1Q1*3U13<Q1Q1I$1%1$>\@^U0/U0Q0-10"<I0$'Q0\/ ^BU0-1EJ/256OD1,D8,DT$ODG$!D1!Q1-7"=Q0"<Q0&32767U064UY|0UY'(Q0/16384*32)+ (Q0&31)+1972%Y$MYQ0/32&31UDQ0/1024&15UM|-1EJ&255-4"=Q0-(Q0/1000*1000)UD Q0/1000+1970UYMY0U01UM12<Q0QMU1QD-Q1U1Q1">Q1UD1%M$'1%0$>|ODG$'''OD$!D8!Q0&7 +2010UYMYQ0/8&31UDQ0/256&15UMOD$!DT!Q0-(Q0/31*31)+1UDQ0/32U0Q0-(Q0/12*12)+1 UMQ0/12+1964UYMYOD$!DG!Q0&31UDQ0/32&15UMQ0/512+1900UYMY!D!-1EJ/256 OT1,T8,TT$^H*2U0OTG$!T8!12UH00UN00USOO$!T1!-1EJ-4"=(24*60-^H)*60U0OTG$'^H*2U0 OTG$!TT!^H*60U0!TG!Q0/3600UHQH*3600U1(Q0-Q1)/60UNQ0-Q1-(QN*60)US!O!-600U0Q0 "<-Q0U1Q1-(Q1/100*100)%N$QN-59">1%H$-60%N$'Q1/100%H$QH-23">1%D$-24%H$QM-1QMU1 QD-Q1">1%M$1UDQM-12">1%Y$MY1UM'''|-Q0+(Q0/100*100)%N$QN"<-1%H$60%N$'-Q0/100 %H$QH"<-1%D$24%H$QD"=-1%M$QM"=-1%Y$MY12UM31UD|QM-1QMUD''''IDate: $ ^U1SunMonTueWedThuFriSat$QYU0QDU1QM-3"<Q0%1$-1%0$|Q0-2%1$'23*QM/9+Q1+4+ (Q0/4)-(Q0/100)+(Q0/400)U0Q0-(Q0/7*7)MSI, $QDM0I $ ^U1JanFebMarAprMayJunJulAugSepOctNovDec$QM-1MSI $QY\I $QHM0I:$QNM0I:$QSM0 I GMT $]1]0]S]N]H]Y]D]M$$ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Source file, made printable: =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= !HTTP-DATE.TEC! ! ------------------------------------------------------------------------- ! ! Insert the current date and time as an HTTP Date: header ! ! ------------------------------------------------------------------------- ! ! The date and time varies by computer and OS, encoded in -1EJ: ! ! -1EJ=256*m+n Computer (m) Operating System (n) ! ! 0 PDP-11 0 RSX-11D ! ! 1 RSX-11M ! ! 2 RSX-11S ! ! 3 IAS ! ! 4 RSTS/E ! ! 5 VAX/VMS ! ! (compatibility mode) ! ! 6 RSX-11M+ ! ! 7 RT-11 ! ! 1 PDP-8 0 OS/8 ! ! 2 DEC-10 0 TOPS-10 ! ! 3 DEC-20 0 TOPS-20 ! ! 4 VAX-11 0 VAX/VMS ! ! (native mode) ! ! 100 Unix 0 Unix ! ! 101 IBM PC 0 MS-DOS ! ! 1 Win32, OS/2 ! ! 102 Amiga 0 AmigaDOS 1.3 ! ! ------------------------------------------------------------------------- ! [M [D [Y [H [N [S [0 [1 ! save used Q-reg's ! ! M.num = month in year, 1-12 ! ! M.str = days in months as characters adjusted for leap years ! ! D.num = day in month, 1-31 ! ! Y.num = 4-digit year ! ! Y.str = macro to build M.str from Y.num ! ! H.num = hour in day, 0-23 ! ! N.num = minute in day, 0-59 ! ! S.num = second in minute, 0-59 ! ! S.str = macro to insert 3 chars from 1.str ! ! 0.num = scratch value ! ! 0.str = macro to insert 2-digit number with leading zero ! ! 1.num = scratch value ! ! 1.str = argument to S.str ! ! <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ! ! Y.str = macro to build M.str = days in month as characters ! ! using Y.num = current year ! @^UY\ 0J ! Go to start of buffer ! 31 at I// ! January ! QY&3 "= 29 @I// | 28 @I// ' ! February ! 31 @I// ! March ! 30 @I// ! April ! 31 @I// ! May ! 30 @I// ! June ! 31 @I// ! July ! 31 @I// ! August ! 30 @I// ! September ! 31 @I// ! October ! 30 @I// ! November ! 31 @I// ! December ! 0XM ! M.str = temporary string ! 0K ! delete temporary string ! \ ! >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ! ! <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ! ! S.str = macro to insert 3 chars from 1.str ! @^US\ U1 ! 1.num = 0-based word index ! Q1*3 U1 ! 1.num = char offset in 1.str ! 3< ! for 3 chars... ! Q1Q1 @I"" ! insert one char ! 1 %1$ ! 1.num++ ! > ! end ! \ ! >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ! ! <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ! ! 0.str = macro to insert two digit number, with leading zero ! @^U0/ U0 ! 0.num = arg ! Q0 - 10"< ! if 0.num < 10? ! @I"0" ! insert zero ! ' ! end if ! Q0\ ! insert 0.num ! / ! >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ! ^B U0 ! 0.num = encoded date ! -1EJ/256 @O!D1,D8,DT! ! handle special date decodings ! @O!DG! ! handle general date decoding ! !D1! Q1 - 7 "= ! RT-11? ! ! ------------------------------------------------------------------------- ! ! RT-11: ^B = ((((year-2003)*16+month)*32)+day)*32)+(year-1972)&31 ! ! ------------------------------------------------------------------------- ! Q0 "< ! if high bit set? ! Q0&32767 U0 ! strip high bit ! 64 UY ! Y.num = corresponding year ! | ! else ! 0 UY ! Y.num = 0 ! ' ! end if ! (Q0/16384*32) + (Q0&31) + 1972 %Y$ ! Y.num += remaining part of year ! MY ! M.str = days in months ! Q0/32 & 31 UD ! D.num = day ! Q0/1024 & 15 UM ! M.num = month ! | -1EJ & 255 - 4 "= ! if RSTS/E? ! ! ------------------------------------------------------------------------- ! ! RSTS/E: ^B = ((year-1970)*1000)+day within year ! ! ------------------------------------------------------------------------- ! Q0 - (Q0/1000*1000) UD ! D.num = day in year ! Q0/1000 + 1970 UY ! Y.num = year ! MY ! M.str = days in months ! 0U0 ! U.num = 0 ! 1UM ! M.num = January ! 12< ! for 12 months... ! Q0QM U1 ! 1.num = days in month 0.num ! QD - Q1 U1 ! 1.num = D.num - 1.num ! Q1 "> ! if D.num > days in month? ! Q1 UD ! D.num -= days ! 1 %M$ ! M.num++ ! ' ! end if ! 1 %0$ ! 0.num++ ! > ! end ! ! D.num = day in month ! ! M.num = month in year ! | ! otherwise, ! @O!DG! ! general case ! ' ! end if ! ' ' @O!D! ! ------------------------------------------------------------------------- ! ! OS/8: ^B = (((month*32)+day)*8)+((year-1970)&7)+k ! ! where k = 4096 if year>1977 ! ! and k=0 otherwise ! ! ------------------------------------------------------------------------- ! !D8! Q0 & 7 + 2010 UY ! Y.num = year ! MY ! M.str = days in months ! Q0/8 & 31 UD ! D.num = day ! Q0/256 & 15 UM ! M.num = month ! @O!D! ! ------------------------------------------------------------------------- ! ! TOPS-10, ! ! TOPS-20: ^B = (((year-1964)*12+month-1)*31+day-1) ! ! ------------------------------------------------------------------------- ! !DT! Q0 - (Q0/31*31) + 1 UD ! D.num = day ! Q0/32 U0 ! 0.num /= 32 ! Q0 - (Q0/12*12) + 1 UM ! M.num = month ! Q0/12 + 1964 UY ! Y.num = year ! MY ! M.str = days in months ! @O!D! ! ------------------------------------------------------------------------- ! ! RSX-11: ^B = ((year-1900)*16+month)*32+day ! ! VAX/VMS: ^B = ((year-1900)*16+month)*32+day ! ! Amiga: ^B = ((year-1900)*16+month)*32+day ! ! Unix: ^B = ((year-1900)*16+month)*32+day ! ! Win32: ^B = ((year-1900)*16+month)*32+day ! ! OS/2: ^B = ((year-1900)*16+month)*32+day ! ! MS-DOS: ^B = ((year-1900)*16+month)*32+day ! ! ------------------------------------------------------------------------- ! !DG! Q0 & 31 UD ! D.num = day ! Q0/32 & 15 UM ! M.num = month ! Q0/512 + 1900 UY ! Y.num = year ! MY ! M.str = days in months ! !D! ! Get HH:MM:SS in Q-reg's H,M,S ! -1EJ/256 @O!T1,T8,TT! ! handle special decodings ! ^H*2 U0 ! 0.num = seconds since midnight ! @O!TG! ! handle general decoding ! ! ------------------------------------------------------------------------- ! ! OS/8: ^H = 0 ! ! ------------------------------------------------------------------------- ! !T8! 12 UH ! H.num = 12 ! 00 UN ! N.num = 0 ! 00 US ! S.num = 0 ! @O!O! ! output time ! ! ------------------------------------------------------------------------- ! ! RSTS/E: ^H = minutes until midnight ! ! ------------------------------------------------------------------------- ! !T1! -1EJ -4 "= ! RSTS/E? ! (24*60 - ^H)*60 U0 ! 0.num = seconds since midnight ! @O!TG! ! handle general decoding ! ' ^H*2 U0 ! 0.num = seconds since midnight ! @O!TG! ! do general case ! ! ------------------------------------------------------------------------- ! ! TOPS-10: ^H = 60ths of a second since midnight ! ! (or 50ths of a second where 50 Hz power is used) ! ! ------------------------------------------------------------------------- ! !TT! ^H*60 U0 ! 0.num = seconds since midnight ! ! fall through to general case ! ! ------------------------------------------------------------------------- ! ! RT-11: ^H = (seconds since midnight)/2 ! ! RSX-11: ^H = (seconds since midnight)/2 ! ! VAX/VMS: ^H = (seconds since midnight)/2 ! ! Amiga: ^H = (seconds since midnight)/2 ! ! Unix: ^H = (seconds since midnight)/2 ! ! Win32: ^H = (seconds since midnight)/2 ! ! OS/2: ^H = (seconds since midnight)/2 ! ! MS-DOS: ^H = (seconds since midnight)/2 ! ! ------------------------------------------------------------------------- ! !TG! Q0/3600 UH ! H.num = hours ! QH*3600 U1 ! 1.num = hours (in seconds) ! (Q0 - Q1)/60 UN ! N.num = minutes ! Q0 - Q1 - (QN*60) US ! S.num = seconds ! !O! -600 U0 ! offset from GMT ! Q0 "< ! if offset < 0? ! -Q0 U1 ! add offset to local time ! Q1 - (Q1/100*100) %N$ ! N.num += minute offset ! QN - 59 "> ! if minutes overflowed? ! 1 %H$ ! H.num++ ! -60 %N$ ! N.num -= 60 ! ' ! end if ! Q1/100 %H$ ! H.num += hour offset ! QH - 23 "> ! if hours overflowed? ! 1 %D$ ! D.num++ ! -24 %H$ ! H.num -= 24 ! QM-1QM U1 ! 1.num = days in month ! QD - Q1 "> ! if days overflowed? ! 1 %M$ ! M.num++ ! 1 UD ! D.num = 1 ! QM - 12 "> ! if month overflowed? ! 1 %Y$ ! Y.num++ ! MY ! rebuild M.str ! 1 UM ! M.num = 1 ! ' ! end if ! ' ! end if ! ' ! end if ! | ! else ! ! subtract offset from local time ! -Q0 + (Q0/100*100) %N$ ! N.num -= minute offset ! QN "< ! if minutes underflowed? ! -1 %H$ ! H.num-- ! 60 %N$ ! N.num += 60 ! ' ! end if ! -Q0/100 %H$ ! H.num -= hour offset ! QH "< ! if hours underflowed? ! -1 %D$ ! D.num-- ! 24 %H$ ! H.num += 24 ! QD "= ! if days underflowed? ! -1 %M$ ! M.num-- ! QM "= ! if months underflowed? ! -1 %Y$ ! Y.num-- ! MY ! rebuild M.str ! 12 UM ! M.num = 12 ! 31 UD ! D.num = 31 ! | ! else ! QM-1QM UD ! D.num = last day of month ! ' ! end if ! ' ! end if ! ' ! end if ! ' ! end if ! @I"Date: " ! Insert Date: header ! ! Insert DAY, DD Mon YYYY ! @^U1%SunMonTueWedThuFriSat% QY U0 ! compute day within week from ! QD U1 ! methods of Sakamoto, Lachman, ! QM-3 "< ! Keith and Craver ! Q0 %1$ -1 %0$ | Q0 - 2 %1$ ' 23*QM/9 + Q1 + 4 + (Q0/4) - (Q0/100) + (Q0/400) U0 Q0 - (Q0/7*7) MS ! Insert DAY ! @I", " ! Insert ,<SP> ! QD M0 ! Insert DD ! @I" " ! Insert <SP> ! @^U1%JanFebMarAprMayJunJulAugSepOctNovDec% QM - 1 MS ! Insert name of month ! @I" " ! Insert <SP> ! QY\ ! Insert YYYY ! @I" " ! Insert <SP> ! ! Insert HH:MM:SS ! QH M0 ! Insert HH ! @I":" ! Insert : ! QN M0 ! Insert MM ! @I":" ! Insert : ! QS M0 ! Insert SS ! @I" GMT " ! Insert <SP>GMT<CR> ! ]1 ]0 ]S ]N ]H ]Y ]D ]M ! restore used Q-reg's ! $$ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://computergraphicsmuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

14 years, 1 month

2
2
0 0

Q-bus BSW-Q?

by iamcamiel＠gmail.com

I have another card I can't identify: It's a Q-bus card; in copper on the front of the card it's marked "BSW-Q". on the back, it's marked "4522 111 89361". On the front, there's a sticker that reads "4522 117 0825" and "1996830". I think the latter might be a date code. The 4522 numbers look suspiciously like 12NC numbers, which to me suggests that this is not a DEC part (maybe Philips?) Camiel.

14 years, 1 month

1
1
0 0

Dilog and ACT UNIBUS module identification

by iamcamiel＠gmail.com

I can't find anything on these two UNIBUS modules: - ACT 10197-0 - DILOG 153078 Any clues?

14 years, 1 month

2
3
0 0

Strange Core Memory Behavior in a PDP-8/L

by michael.99.thompson＠gmail.com

The RICM is still wrestling with the core in the PDP-8. After replacing some diodes on the core stack we have all addresses working. We observed an interesting core memory behavior during our debugging last Saturday. We started the memory alignment procedure by looking at the STROBE FIELD 0 signal and the amplifier output on pin E1 of the sense amplifier. The STROBE signal was very late compared to Figure 5-6 in the 8/L Maintenance Manual. We ran a short JMP loop and adjusted the relationship with the trimpot on the M360 delay module. When we halted the processor and tried a examine core we only got just zeros. We adjusted the M360 delay back where it was and single step worked again. We found that the strobe-to-one-bit relationship was almost 100ns earlier when in single-step than it was with the processor running. We checked the whole timing path from MEM START at pin N2 of the M113 in slot C03, through all of the gates, delays, and flip-flops, and found no timing difference between single-step and running. Right now it looks like there is a 100ns delay difference between the READ(1) signal that turns on the current in the core and the bit signal showing up on the E1 pin of the sense amplifier when in the single-step and running. Is this normal behavior? -- Michael Thompson

14 years, 1 month

2
2
0 0

TECO ^B on OS/8 and RT-11

by bqt＠update.uu.se

On 2012-07-15 12:29, Richard<legalize at xmission.com> wrote: > In article<4FFEAC19.2080507 at update.uu.se>, > Johnny Billquist<bqt at update.uu.se> writes: > >> >However, with only 13 bits for integers in TECO, I'm not sure how you >> >would go about to solve it in a reasonable way... > I'm not sure why you think TECO has 13-bit integers on a 12-bit > machine... Maybe because it does...? :-) Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

14 years, 1 month

1
0
0 0

TECO ^B on OS/8 and RT-11

by bqt＠update.uu.se

On 2012-07-12 12:11, Rick Murphy <rick at rickmurphy.net> wrote: > At 12:12 PM 7/11/2012, Richard wrote: >> >For OS/8, you only get *3* bits for the year plus a high 4K bit set if >> >the year is out of range? Does this mean years higher than 1977 are >> >encoded as 4096+(year-1977)? >> >... >> >Can anyone with RT-11 or OS/8 and TECO v40 verify what is described above? > As already mentioned, this is consistent with OS/8 date code - 3 bits > of year and two of extension. > > You can't enter dates later than 1999: > > .DATE 31-DEC-99 > > .DATE > Friday December 31, 1999 > > .DATE 1-JAN-00 > BAD DATE > .DATE 1-JAN-2000 > BAD DATE Right. But that is a limitation of the command decoder, and have very little to do with any other part of OS/8 date handling. The date encoding in OS/8 itself actually worked until 2002. > What 31-DEC-99 gives you from TECO: > .R TECO > *^B==$$ > 16375 > > (12 * 32) + 31) * 8 = 3320 > (1999 - 1970) & 7 = 5 > 3325 DEC, 6375 OCT plus 4096 gives 16375. > > You can't tell what this really means (it could be 1983, 1991, or 1999) > but that's an OS/8 failure, not TECO. No. That is a failure in TECO. OS/8 obviously knows if it is 1975, 1983, 1991 or 1999. The information is not preserved in TECO. TECO fail. The problem is that OS/8 keeps two bits for the extension of the years, while TECO compressed that into just one bit. Loss of information follows. However, with only 13 bits for integers in TECO, I'm not sure how you would go about to solve it in a reasonable way... Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

14 years, 1 month

4
5
0 0

Strange behavior in the RICM PDP-8/L

by michael.99.thompson＠gmail.com

I am hoping that one of you might be able to shed some light on a strange behavior in the RICM PDP-8/L. It looks like we have everything working OK except for a strange behavior when the processor is run at full speed. Single-stepping Instruction Test 1 works OK, so at least the processor logic is mostly functional. We tried just running Instruction Test 1 at full speed, but it halted at 0501. We looked at the code in that area and found that the contents of location 0500 was all zeros. We loaded a little program consisting of: IAC, IAC, JMP .-2 and found that it would replace the first IAC with zeros. More experimenting showed that if any of the address bits 6-11 were on, the program would work OK. If you run the processor at full speed through an instruction at xx00, that location is replaced with zeros. We swapped all of the G221s, G228s, and G224s. None of the module changes affected the strange behavior. We swapped the M617 in slot A9, but that didn't make a difference. The read/re-write current waveforms look OK for all addresses. At this point we really don't know what is causing this behavior, so any ideas would be helpful. -- Michael Thompson

14 years, 1 month

3
2
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OS/8 dates (was TECO ^B on OS/8 and RT-11)

by bqt＠update.uu.se

On 2012-07-13 07:25, Rick Murphy <rick at rickmurphy.net> wrote: > At 06:51 AM 7/12/2012, Johnny Billquist wrote: >> >Right. But that is a limitation of the command decoder, and have very >> >little to do with any other part of OS/8 date handling. The date >> >encoding in OS/8 itself actually worked until 2002. > What you mean is that you can set the system date information to > correspond to dates as late as 2002 if you either do it by hand (ODT) > or with some other program. However, being able to set the date to > something in 2001 doesn't help you much, because nothing that I know of > that's shipped with the OS handles dates past 1999. (Note: I don't know > if any of the OS/78 or OS/278 kits did anything here.) Correct. The command decoder is not the only piece of software that can't handle dates beyond 1999, but the example you gave showed the specific limitation of the command decoder. But I never claimed that OS/8 was Y2K safe. I only pointed out that the internal representation of a date in OS/8 was in fact good until 2002. > For example, setting the date to 31-DEC-77 then setting the two > extended date bits on gives you: > .DATE > Monday December 31, 19 1 > > OK, that's still the Command Decoder. How about DIR? No, it's not the command decoder (as in the decoding and parsing of the command), but it's the date command output itself that do not handle dates beyond Y2K. > .DIR 2000.* > > 31-Dec-101 > > 2000 .TX 1 31-Dec-101 > > 1 Files in 1 Blocks - 615 Free blocks > > Looks like the date handling is pretty broken. Unless you're aware of > something that actually displays the right date for such things. No. It is broken. In this case DIRECT. I would suspect every utility that ever existed, more or less, in OS/8 to not handle dates beyond Y2K. But that could be fixed, and it's a separate issue from the date command accepting years beyond 1999 as input. Just for information, older versions of RSX, for example, have exactly the same bug. 2001 shows up as 101 in various places, even though RSX itself is actually good until the year 34667. In a way though, 101 is pretty logical. Program that displayed years as two digit numbers were actually often just showing an offset from the year 1900, and 2001 is, by that view, 101. But it's not pretty. Nor actually a correct display of the year. > Oh, and the other fun aspect: > .DATE 1-JAN-77 > > .DIR 2000.* > > 01-Jan-77 > > 2000 .TX 1 31-Dec-77 > > 1 Files in 1 Blocks - 615 Free blocks > > When you change the date, you might also be changing the creation dates > for files by one or more multiples of 8 years. Right. That is a known limitation that is documented. Dates on files do only cover a 8 year span, so they simply guess which 8-year span to apply to file dates. It was a "problem" already in 1978. > The failure to include extended date bits in directories means that > whatever date your files were created in, they're assumed to be within > eight years of the current date. Changing the date changes what the OS > thinks the creation date is for a file. Correct. >>> >>What 31-DEC-99 gives you from TECO: >>> >>.R TECO >>> >>*^B==$$ >>> >>16375 >>> >> >>> >>(12 * 32) + 31) * 8 = 3320 >>> >>(1999 - 1970) & 7 = 5 >>> >>3325 DEC, 6375 OCT plus 4096 gives 16375. >>> >> >>> >>You can't tell what this really means (it could be 1983, 1991, or 1999) >>> >>but that's an OS/8 failure, not TECO. >> > >> >No. That is a failure in TECO. OS/8 obviously knows if it is 1975, >> >1983, 1991 or 1999. The information is not preserved in TECO. TECO fail. > It's also a failure in OS/8. 12 bits gives you potentially 11 years of > date range (4096 days at 365 days per year); the 14 bits they're using > could have given almost 45 years of date range if DEC had decided to > change the date format to be days since 1-jan-1970. It would have made > sense given that the current format has so many problems (can't be > compared using simple arithmetic, for example). This is a different issue, but sure. Different date formats could have made the system work for longer. There is actually no reason why you need to stuff all the information into just one 12-bit word either. But it's all a tradeoff between speed, space, and complexity. DEC chose initially to store the date in one 12-bit word, with different bitfields reserved for different parts of the date. Not super compact, but easy to deal with. It ran out of range in 1978, they did the simplest form of extension by reserving two more bits in another word in memory, while not doing anything at all about dates on files. That scheme in turn ran out in 2002, but I suspect DEC was happy enough with that, since at Y2K, a lot of other things would break anyway (as you showed above), so an extension of the date format that carried longer would not be very useful anyway without going through and fixing all other code there was, which is a lot, and which they didn't do. But the fact that TECO can't tell a date from beyond 1985 is not something you can blame OS/8 for anyway. TECO made its own choice on how to represent dates. Information in OS/8 gives you unique dates until 2001, but TECO does not. You can't possibly blame OS/8 for that. >> >The problem is that OS/8 keeps two bits for the extension of the >> >years, while TECO compressed that into just one bit. Loss of >> >information follows. >> > >> >However, with only 13 bits for integers in TECO, I'm not sure how you >> >would go about to solve it in a reasonable way... > True, there's not much that can be done given the data type. 13 bits > packed just doesn't get you enough range. > > The TECO source doesn't say anything about this limitation, but it just > ignores the high-order date bit: > > CTL.B, TAD I (7777 > RTL > RTL > RAL /PUT EXTENDED DATE BIT IN LINK > L7200, 7200 /CLA > CDF 10 > TAD I (7666 > CDF 0 > JMP I (NCOM Ooo. So TECO-8 actually lie in their documentation... Even worse. A year in the range 1986-1994 would just have looked like 1970-1977. That's ugly of them. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

14 years, 1 month

4
4
0 0

VMS 2.5

by quapla＠xs4all.nl

I have found a TK50 tape which has written 'VMS 2.5' on it. I have no read the tape so I do not know if contains anything at all. If it does contain something, it could be an installation duplicate or just a backup of some system. Free for who wants it, I only ask for the postage fee to be paid (approx $10 - $15 for worldwide shipping) Ed -- Dit is een HTML vrije email / This is an HTML free email. Zeg NEE tegen de 'slimme' meter.

14 years, 1 month

2
1
0 0

Paul Allen's Living Computer Museum

by swtpc6800＠comcast.net

The Seattle Retro-Computing Society meets in Paul Allen's Living Computer Museum the forth Saturday of the month. (http://www.seattleretrocomputing.com ) We missed a couple of meetings because the building was being remodeled. Work is starting on museum exhibits for the general public. There is no announced opening date yet. You can request a tour of the existing site on their web site. http://www.pdpplanet.com I have posted some photos of the museum and our club meetings. http://www.swtpc.com/mholley/Living_Computer_Museum/SRCS.html Michael Holley (There may be a duplicate of this message.)

14 years, 1 month

5
5
0 0

Paradox 4.0 docs

by rampaginggreenhulk＠yahoo.com

Stuck them on eBay, no one bid. I've never actually used Paradox. Are these worth saving? Anyone need them (hopefully w/the intention of sharing them wif the community)?

14 years, 1 month

13
23
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Paradox 4.0 docs

by rampaginggreenhulk＠yahoo.com

youre both morons you know ------------------------------ On Thu, Jul 12, 2012 8:48 PM PDT Chuck Guzis wrote: >On 12 Jul 2012 at 22:41, Dan Gahlinger wrote: > >> >> Why would I need a Paradox when I don't even own a boat? > >Seems to me that a Paradox would come in handy if you wanted a second >opinion on your condition... > >

14 years, 1 month

3
4
0 0

RL01/RL02 simulator

by aek＠bitsavers.org

FYI http://www.pdp11gy.com/indexE.html#file:///E:/homepage/indexE.html

14 years, 1 month

1
0
0 0

Unknown card..

by wrm＠retro.co.za

>On second thought, I concur. The fingers seem to match the Apple II >slot (power and data lines in the correct positions), so it is very >likely an Apple II card. Naaah, I disagree. Sure, it yelled "Apple" at me immediately. But it looks like the power is in the middle, by C1... and Apple II power is at the (what would be in this pic) right hand side, and those look like signals going to the 244. On an Apple the pins 45 and 47 (the way this card is numbered) would be daisy chained to the other side. Not Apple IMO. W

14 years, 1 month

9
9
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TECO ^B on OS/8 and RT-11

by legalize＠xmission.com

According to the documentation for TECO v40: ^B <CTRL/B> (caret/B) is equivalent to the current date via the following equations: OS/8: ^B = (((month*32)+day)*8)+((year-1970)&7)+k where k = 4096 if year>1977 and k=0 otherwise RT-11: ^B = (((month*32)+day)*32)+year-1972 RSTS/E: ^B = ((year-1970)*1000)+day within year RSX-11: ^B = ((year-1900)*16+month)*32+day VAX/VMS: ^B = ((year-1900)*16+month)*32+day TOPS-10: ^B = (((year-1964)*12+month-1)*31+day-1) Notice how the year is added as the least significant bits for OS/8 and RT-11. For OS/8, you only get *3* bits for the year plus a high 4K bit set if the year is out of range? Does this mean years higher than 1977 are encoded as 4096+(year-1977)? For RT-11, notice how year-1972 is packed into *5* bits (0..31), so years after 1972+31=2003 start carrying over into the bits for the month and day. Can anyone with RT-11 or OS/8 and TECO v40 verify what is described above? -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://computergraphicsmuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

14 years, 1 month

4
10
0 0

ST-506/412 to IDE/ATA/SCSI/? adaptor

by abs＠absd.org

Does anyone know of any adaptors to fit a "modern" drive (be it IDE, SCSI, ATA, CompactFlash etc) into a machine with an ST-506/412 interface? Or more reasonably knowing this list, does anyone know of schematics and board kits? :)

14 years, 1 month

53
263
0 0

Unknown card..

by robert＠irrelevant.com

My dad turned this up the other day. He'd been tidying his desk and come across it! He's no idea where it came from, or what it's out of... Anybody got any ideas? Picture at http://www.irrelevant.com/rob/IMG_3002.JPG (708KB) It look a bit like an ISA card missing it's bracket but I've not got one to hand to compare it too. Label shows a horse, CP Computer Products, Power Products Division and a matrix printed "PM671R". Underside has "Artwork PC19640, REV.B. Detail PC19641. Assembly PC19642. G T P 244" in copper. Main chip is an AMD Z8530PC. There's a PAL and a MC1488 & 9, otherwise the rest is 74LS TTL. All socketed. 26 pin internal header. No external sockets. Date codes are mostly 1987. It certainly feels like some sort of RS232 serial card, based on the chips, but I've not seen one without an D-type socket on before. Any ideas? Anybody have a use for it? FTGH just pay postage. Rob

14 years, 1 month

6
9
0 0

Unknown card..

by wrm＠retro.co.za

> >Wasn't there a short-lived "S-50" bus once upon a time? There was an SS-50 bus which was a 680x bus by as far as I remember mostly SWTPC and Gimix, and that was based on 0.1" headers with the sockets on the motherboards. There was also an SS-30 bus for I/O -- similar to the Apple II in that each slot had a decoded select signal. Dave Dunfield knows more than most of us about this :-) W

14 years, 1 month

1
0
0 0

lot of DEC equipment for sale

by saipan59＠q.com

We're moving, and I need to down-size considerably. I want to sell the following DEC gear as a lot for $2000. You must be able to pick it up in Colorado Springs. Everything goes together, please - no cherry-picking. You take it all, and you can dispose of the stuff you don't want. Here's the highlights: PDP-8E. Years ago, I was able to key in stuff from the front panel, but it didn't seem to execute. But I think it's not too far from working. PDP-11/05. The 5V power rail doesn't work, and the core memory is flakey, but years ago I hooked up an external 5V supply, cabled the Unibus to an external DD11 with MOS memory, and booted and ran RT-11 using my RX01 emulator board. The front panel is ugly, but all the switches and lights work. Includes spare CPU and memory-controller cards, but at least some of them don't work. VT05 terminal. DEC's first general-purpose video terminal. Quite rare, I think. It works, last time I tried. VT100 terminal. Works. PDP-11/03-L system box. It's a rack-mountable BA11 chassis with CPU, memory, BDV11, and serial card. PDT-150. Works. Have a spare CPU board also. VAXstation 3100-M38. AlphaStation 200 -4/166. "Pizza box" storage box. Accepts 3 SCSI SBB disk drives. About 2 linear feet of microfiche, tech and maint. info. These alone are worths 100's of $$ on eBay. This is mostly "good stuff". Option Module List books, 4 volumes. VMS CDs. Digital Technical Journals - I think it's a complete set. DEC handbooks - about 4-5 linear feet. A variety of modules, including Unibus, Q-bus, u-VAX, and some straight-8 flip-chip cards. Also available, but for an additional cost: Original Commodore PET, 8K RAM, chiclet keyboard. It was my very first computer in 1979. Atari 800 system. HP-85. A home-brew S-100 system that I built, based on a PDP-8i switch panel and vintage LEDs. Pete Contact me at: saipan59 at Q dot com. Or call: 719 282 1033 (weekends, or evenings before 10PM Mountain)

14 years, 1 month

2
2
0 0

TSX-Plus docs

by wdonzelli＠gmail.com

I have quite a pile of TSX-plus docs that need to find a good home - so far three or four binders. TSX is an extension of RT-11. Please contact me off list. Bitsavers has dibs. Free for postage (media rate should not be too bad). -- Will

14 years, 1 month

3
4
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test-drb