- 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?

13 years, 11 months

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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?

13 years, 11 months

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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!

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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>

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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.

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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

13 years, 11 months

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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

13 years, 11 months

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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.

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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?

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

2
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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.

13 years, 11 months

1
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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. 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

13 years, 11 months

1
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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.

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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.

13 years, 11 months

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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.

13 years, 11 months

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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

13 years, 11 months

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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.

13 years, 11 months

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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

13 years, 11 months

1
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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

13 years, 11 months

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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...

13 years, 11 months

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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

13 years, 11 months

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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...

13 years, 11 months

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Old scans of 73 magazine available

by microcode＠zoho.com

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

13 years, 11 months

1
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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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

13 years, 11 months

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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>

13 years, 11 months

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GNT 4601 reader/punch documentation

by michael.99.thompson＠gmail.com

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

13 years, 11 months

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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.

13 years, 11 months

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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.

13 years, 11 months

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