test-drb

test-drb@ccmp.vtda.org

101090 discussions

by quapla＠xs4all.nl

All, During further sorting out of the stuff I collected from our company as part of their inventory cleanup I came across some Qbus industrial I/O boards. They are : A410 - IAV11-A 4/12 channel A/D converter A6007 - IAV11-B 4 channel isolated 20mA D/A converter A029 - IAV11-C 16 channel expansion mux. M6029 - IDV11-B 16 bit opto isolated output M8005 - IDV11-C 16 bit relay output M5026 - 16 bit opto isolated input with cable and bulkhead connector and a matching test connector for the IAV11-B All 6 cards are dual height ones and are very clean and still sealed in their a.s. bags. Make me an offer for one or more cards. As usual, the items are located in the Netherlands. Ed -- Dit is een HTML vrije email / This is an HTML free email. Zeg NEE tegen de 'slimme' meter.

14 years, 3 months

Tek 401x terminal motherboard?

by tshoppa＠wmata.com

> www.ebay.com/itm/260934669305 > Is this the motherboard for a Tek 401x? I think a 4014 is a 6 slot motherboard with a 6 slot extension and discrete connections on the short side not long side. Is a 4010 the same? It is vaguely reminiscent of many 70's era Tek backplanes... maybe this is for 0one of their early microprocessor systems?

14 years, 3 months

Vintage DEC/SUN/HP/MACINTOSH workstations/servers for sale

by janprunk＠gmail.com

Hello ! I am releasing my collection of old computer stuff. Only for personal pickup in Ljubljana, Slovenia. If you want the computer badly, the shipping wont be less than 40 EUR/piece inside Europe, for USA or Asia shipping, you better forget it ! The equipment consist of : ### DEC ### 1 x DEC VAXstation 4000/200 - 300 EUR 1 x Digital DEC 3000 - 100 EUR 1 x Digital DEC 2000 Alpha - 100 EUR ### SUN ### 2 x SUN Sparcstation 4 - 50 EUR/each ### HP ### 3 x Hewlett Packard Appollo 9000 712/60 - 50 EUR/each 1 x Hewlett Packard PC 9000 PC-308 (XT) - 50 EUR 1 x Hewlett Packard 9000 E35 - 50 EUR ### Macintosh ### 1 x Power Macintosh 7500/100 - 50 EUR The computers are released in "AS-IS" condition, some have been tested, the others have not, without any warranty. Please for any queries contact me directly to my E-mail address janprunk at gmail.com I don't follow the mailing list. Regards,Jan -- Jan Prunk?? http://www.prunk.si 0x00E80E86? http://pgp.prunk.si http://AS50763.peeringdb.com

14 years, 3 months

vaxstation video compability question

by dgahling＠hotmail.com

I have a question about video compatibility with the vaxstation. the vaxstations I have (3100s M76) come with a funky cable to output to 3 BNC connectors -R, G, and B. I just picked up a Sony LMD-1410SC Monitor which has RGB BNC connectors (and others). I looked at the specs for the Sony, but not sure it will work. the link for the specs is here: http://www.aegis-elec.com/products/sony-LMD1410SC.html I'd really like to replace the ViewSonic P810 Monitor I've been using for this, even though the P810 is a nice 21" monitor, it's an old CRT, meaning it's huge and weighs a ton. btw the viewsonic is free (for the cost of shipping) to a good home if this works. anyone know? thanks, Dan.

14 years, 3 months

PDP-11 Values from MFPT

by jhfinedp3k＠compsys.to

I have an interesting hardware question. I have been looking at the results for the program RESORC.SAV in RT-11 with respect the MFPT instruction. When the J11 chip is used, the value is 5 and the Maintenance Register at 177750 seems to determine what the rest of the actual hardware supports. I thought it would also be helpful for the user to know if an emulator is being used, either software or hardware, or if perhaps some other 3rd party hardware CPU. I would probably target the various 3rd party boards as far as hardware is concerned (such as QED and Mentec). For software emulators, I would suggest that only the high end PDP-11 processors be supported (the DEC CPUs which support the MFPT instruction) in order to keep things simple, at least initially. An incomplete list of software emulators is: SIMH Ersatz-11 An incomplete list of hardware boards is: QED - more than 1? Mentec - at least 3 and I can remember at least 2 others, but not the company names. Right now the Logical Co. has a combined emulator called a PDQ-1000 board which actually plugs into a Qbus which takes only 4 slots, but includes CPU, memory and many controllers. Thus far, the high order byte of the MFPT instruction always seems to be zero and is currently ignored by the RESORC.SAV program. Under SIMH and Ersatz-11, it would be trivial to use the high order byte of the MFPT instruction to signify which software emulator is being used. Can anyone who has a DEC (or non-DEC) PDP-11 system easily available determine the actual value returned by the MFPT instruction? As far as I know: MFPT Value Hardware 1 PDP-11/44 3 PDP-11/24 (should be 2) 3 PDP-11/23 4 SBC-11/21 5 All J11 chips including 11/73, 11/83, 11/93 I assume that it would be extremely difficult, probably not worth the effort, to modify the high order byte of the MFPT instruction at this point for the 3rd party PDP-11 CPU boards, such as from Mentec. Can anyone comment on this assumption? Might there be another way for hardware to the tell a user which 3rd party board is being used as a PDP-11? The other possibility is to use the Maintenance Register at 177750, although I suspect that there might not be any more bit available. Jerome Fine

14 years, 3 months

SDK-51 Assembly Manual

by wrm＠dW.co.za

> >I replied last time this came up. Maybe you didn't see that. Is your >manual the same as this one? Yup, that's it. Dunno why I didn't see anything last time. Thanks! Anyone interested in the paper copy? Postage from .za. W

14 years, 3 months

8in floppy 3 power plugs??

by tdk.knight＠gmail.com

i grabed a 8in shugart floppy drive off ebay got it yestday yay! anyhow i am looking at it and theres 3 power plugs? http://www.flickr.com/photos/1ajs/6682794995/in/photostream/lightbox/ and i don't have that style? and i will need to find me a cable for it and eventually a card of some sort for my 11

14 years, 3 months

S-100 6502 CPU board PCBs

by LYNCHAJ＠YAHOO.COM

Hi I have some left over S-100 6502 CPU board PCBs. Please contact me if interested. Thanks and have a nice day! Andrew Lynch

14 years, 3 months

Nice starting price, isn't it? ((Remember its not the whole machine its only the front panel))

by gerhard.kreuzer＠liftoff.at

Hi, is anybody out there, who have enough money for burning it? ebay Nr. 250964436666 could be a nice buy ..... With best whishes to all for 2012 Gerhard

14 years, 3 months

Commodore 64 question

by mcguire＠neurotica.com

Hey Commie folks. Did Commodore build a version of the 64 that looked physically like a 128? -Dave -- Dave McGuire New Kensington, PA

14 years, 3 months

Honeywell DDP-124 manuals...

by geneb＠deltasoft.com

I've got two copies of the Honeywell DDP-124 Instruction Manual Volume II (Timing/Flow Diagrams and Instruction Analyses) that need a new home. Hopefully someone can scan one or both of them. They're dated 1967 and the comb binding isn't faring so well after 44 or so years. They're an odd size - 11" x 15". The DDP-124 was the computer behind the Conductron-Missouri 737-200 and 727-100 flight simulators I used to work on. It ran the flight model & motion base. The visuals were provided by a Sperry machine (Vital II) for the 737 and a Varian 610 (Vital I) for the 727. g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://www.scarletdme.org - Get it _today_! Political correctness is a doctrine, fostered by a delusional, illogical minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.

14 years, 3 months

SDK-51 Assembly Manual

by wrm＠dW.co.za

*tap* *tap* I tried posting to the list a few weeks ago, don't think it worked. I saw on http://manx.classiccmp.org/details.php/47,13105 that the SDK-51 assembly manual's not available as a scan, so I scanned my copy, which is taking up space. So, anyone interested in the scan, and anyone interested in the original, which I will otherwise (shock, horror, but I really need to get rid of stuff) chuck. W

14 years, 3 months

Cromemco FDC

by wrm＠dW.co.za

David Riley wrote: >Ooh, another place I can find 4116s cheaply (even more so than Jameco). >Wish I'd known about this place when I was fixing my Defender boards! I replaced the 4116s in my Apple with 4164s. OK, it's not original (you should have seen the mix of 4116s that came out of there) and you only use a quarter of the chip but it doesn't need all those pesky voltages and they run cooler too. W

14 years, 3 months

[TRS-80] Re: Model I for sale (fwd)

by geneb＠deltasoft.com

I'm not able to get this one, but hopefully someone on this list may be interested in it. Tnx! g. ---------- Forwarded message ---------- Date: Sat, 14 Jan 2012 01:18:10 -0000 From: pauls1950 <paulstephens at Q.com> Reply-To: TRS-80 at yahoogroups.com To: TRS-80 at yahoogroups.com Subject: [TRS-80] Re: Model I for sale I thought I had it taken but it fell through so here is a list of what I have: TRS Model 1 , converted to level 2 16K,original CRT, expansion interface, modem, two original floppy drives, cassette, assembler programming tapes and docs, several boot disks, LDOS, TRSDOS, NEWDOS etc..., Tech manual (scematics and diagnostics), programming manuals. I tried booting it today for the first time in 15 years?? and although the CRT lights up I don't get any output to it - with and without the expansion interface connected so it is in need of repair (either the monitor or the video circuitry in the CPU. I am asking just $100 for everything but whether I get any money for it or not it either gets a new owner or it goes to be recycled. I am in Seattle you can contact me by phone at 206.725.0881 or by email at paulstephens (at) q (dot) com. Please someone take this system - all hardware is original RadioShack. Paul --- In TRS-80 at yahoogroups.com, "pauls1950" <paulstephens at ...> wrote: > > I have a 1978 model I with expansion interface, two floppy drives, lots of manuals and software. This is a complete system and documentation. I am moving and never use it anymore so I need it to go to a good home. > contact me at paulstephens at ... or 206.725.0881 if interested. > > Paul > ------------------------------------ Using an emulator? Please join!Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/TRS-80/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/TRS-80/join (Yahoo! ID required) <*> To change settings via email: TRS-80-digest at yahoogroups.com TRS-80-fullfeatured at yahoogroups.com <*> To unsubscribe from this group, send an email to: TRS-80-unsubscribe at yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/

14 years, 3 months

DiscFerret -- URGENT software update

by classiccmp＠philpem.me.uk

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi guys, I've released a new version of the DiscFerret interface library and microcode. This is libdiscferret v1.5, with microcode release 0x0028. The reason I'm declaring this an urgent update is because in an earlier release of the microcode (possibly back to the initial release) introduced an extremely nasty bug... This bug WILL corrupt the data read from the disc if either * An index pulse arrives at the same time as a flux transition, or * The counter overflows immediately before a transition. In either of these cases, the flux transition will be dropped, and either a Counter Overflow or an Index Trigger byte will be stored instead. For extra bonus points, the counter overflow logic made it absolutely impossible to represent a counter value of 127, or a multiple thereof. These would cause an overflow store... followed by another count up. The transition would be completely ignored. This basically means that any disc image created with any microcode release earlier than 0x0027 (i.e. libdiscferret 1.4 or earlier) should be considered unreliable and not an accurate representation of the data on the disc. These images should be discarded and the discs re-imaged. To resolve this problem I have: 1) Re-engineered the data coding format and the disc-reader logic to prevent a counter overflow or index store from causing a missed transition 2) Completely rewritten the testbench to remove the stupid mistake which allowed these mistakes to slip through the net in the first place. 3) Changed Magpie (the disc image reader) and Merlin (the analyser) to create "DFE2" format files. Attempting to load a "DFER" image into Merlin will work, however it will warn you that the data may be inconsistent. I've screwed up bigtime here -- a tool designed for data preservation should most definitely NOT have had bugs like this. I can't believe I screwed up the design so badly, and I've been cursing at myself since the bug was reported on the DiscFerret IRC channel (#discferret on irc.freenode.net) last week. An even more subtle bug in the test bench code rendered all my tests pointless (basically: the test_fail() function would cause the testbench to abort with a 'success, tests passed' code). The aforementioned test benches have now been rewritten from scratch in a way which will hopefully prevent this kind of thing from happening again. Yes, I am doing both positive and negative testing, and testing the testbench framework. I've left the "torture test" testbench running for several hours with various types of input waveform, including some which would cause timing violations on other parts of the circuitry (specifically, the input filters). No timing violations or data errors were detected, even under these challenging (and in some cases outright impossible) scenarios. The output data matches the hardware model and my specification documents *perfectly*. No doubt some vendors of similar products will take this opportunity to take a dig at me and my product. Whether they choose to act in this highly unprofessional manner is entirely up to them. However, please bear in mind that my code is available for peer review, and I accept submissions of code from others (and bug/feature requests). The bug tracker (Mantis) is open to the public. How many other projects like DiscFerret operate with this level of transparency? The software update is available to download, free of charge, from the usual download source: http://www.discferret.com/ (click the Downloads link on the left hand side). As always, if you have any issues with your DiscFerret, please feel free to contact me -- either by email, the DiscFerret mailing list, or on IRC (philpem on irc.freenode.net). Thank you all for your time. - -- Phil. classiccmp at philpem.me.uk http://www.philpem.me.uk/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJPDgjqAAoJEBWrukZv/+iU2D8IAMU33sK0Q3Psa24xmMOi5mah yBMvCXqPAatqtt2HkUBhn/Lp4fiMxUiIxfbfc2itqpHccxNKNoIlNg0agUK1YSoS H1zACCtoAlSWUvg6yN2p8X5OYVYOXiO0FLNEmnal7CvwBPIwktzBkO4LRkR1WydG rK99EL1fyFZYTQ74SUZ1YSTW3PqPg8Sw4N8eYnODyVTfcNxkiwSklaeupdqu9Tpf 2HoG2YlFKo9/KyBIF4iqy3w092zVhAcv/Z7HG9rhlB+bgYhdmFrX0tNvZLRQTeUZ ruElVDhDv6D/O1hgNqN7QtguekMjNz8FaTfFurq1CsQeWjrMDDop25vjzp9qnwU= =uk9i -----END PGP SIGNATURE-----

14 years, 3 months

DEC-11-AJPB-PB paper tape

by iamvirtual＠gmail.com

Does anyone have an electronic dump of the Basic-11 paper tape for the PDP-11? I am looking for Version 007A that was released 10/22/70. The id of the paper tape is: DEC-11-AJPB-PB PDP-11 BASIC V007A 10/22/70 Many thanks! --barrym

14 years, 3 months

Tek 401x terminal motherboard?

by legalize＠xmission.com

www.ebay.com/itm/260934669305 Is this the motherboard for a Tek 401x? -- "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, 3 months

What's an Intel 4040 worth?

by jonas＠otter.se

> The 12/7 uses a Z80 processor with 2 Z80-DMA chips, one ot read in > characters from the host, the other to send them to the printhead > ciruirry. I nthe 700, the DMA chips are effecively each replaced by a Z8. > In both cases there's a correction PROM fro the printhead chracteristics > to correct the pin fire timin, programemd for that particular printhead. > Yes, they're that precise. I wonder how they measured the printhead characteristics for the correction PROM. Did you have to replace that PROM if you changed the carriage motor, for example? /Jonas

14 years, 3 months

What's an Intel 4040 worth?

by jonas＠otter.se

>> environment. They were built like tanks. The print head used a patented >> "flexhammer" system, instead of pins the dots were made by leaf springs >> which had their ends bent over and shaped to a little square point. The >> springs were held bent off the paper by solenoids, which de-energised to >> print the dots, whereby the spring would shoot forward against the paper > What happened wehen the power went off? Presumably all the springs hit > the paper. Did this mean you could damage the head by moving paper/ribbon > with the ppwer off? And how did the springs get back to the soenoids when > the pwwer was turend on again? (were the solenoids powerful enough to > attract the leaf prings back?) No, as a previous poster mentioned, below the head was a little rubber bladder that pushed the head against the paper when printing, normally it would be angled slightly away from the paper. The head ran across the paper supported by the usual bearings running against a bar at the bottom IIRC, and a solid bar that ran across the paper at the top. I seem to remember that many printers of the time supported the top of the printhead against a wire, and using a bar instead was said to be a big advantage. To print, the head would be pushed against the paper by filling the bladder with air. I don't think there was a compressor in the printer, IIRC just some sort of solenoid in the bottom of the printer pushed against another bladder. The two bladders would have been connected with a little tube that moved with the head. My memory is not too clear about the details here. So what would have happened is that all the magnets in the head were energised, the bladder was expanded and the head run across the paper while working the magnets and springs, at the end of the stroke the bladder would be released and the magnets de-energised while the paper moved, and the process repeated while the head went back across the paper for the next line of dots. It was quite fast as well. We had the two colour version but used all black ribbons which were cheaper, IIRC there was a DIP switch to say whether the ribbon was red and black or all black. IIRC the ribbons were rather like typewriter ribbons, on reels, and you would have to thread the ribbon through the mechanism. The ribbons would come with a pair of plastic gloves so that you didn't have to get your fingers dirty. >> You would love one, I'm sure I would if I could find one and if I had > Indeed it appears I would... > >> room for it... Absolutely the nicest printer I have ever seen. > Hmm.. I think for dot matrix printers that honour has to go to the > Sanders 12/7 (or maybe the 700) machine. This is a 7 pin dont marrix > printer that is so well made that some fonts use 8 passes of the > printhead -- and it is worth doign that. They do things like justifying > text, lining up columns, etc. > Ah, but I haven't seen one of those ;-) It sounds quite amazing. Another nice printer I have come across was a Qume daisywheel printer, it was connected to the PDP-11/40 at the department of applied electronics at the university, which I used for my master's thesis. They had the manual for it, which included the circuit diagrams and technical description. Lots of analogue servo mechanisms. /Jonas

14 years, 3 months

Hazeltine Green

by popeye＠p-t-b.com

Does anyone have an idea of what color "Hazeltine Green" (phosphor) is, or might be, or where that info could be found? My question is regarding web and programmatic simulations of green phosphor monitors. (in an attempt to be somewhat accurate and also have them look "right") -- Quinn

14 years, 3 months

Defender power requirements?

by fraveydank＠gmail.com

I have two working Defender board sets that I'm almost ready to start building cabinets for. I'm scoping out new power supplies (I have the linear ones they came with but no giant transformers for it; I've been using PC power supplies but would like to use something with no moving parts). Does anyone know the approximate rail requirements for it? They don't seem specced in the drawings/theory of operation manuals anywhere. An old 230W AT power supply seems to work fine, but I don't think I need anything that heavy-duty. I know the 5v is going to pull a lot because it's used for most of the logic, and the regulated 12v and -5v are probably somewhat heavy since they power the sense amps for the 24 4116s. As far as I can tell, the unregulated 12v is only used to power the audio amp and the -12v (unregulated) is only used for the negative reference on the audio DAC; am I missing anything? I haven't measured current draw per rail yet, mostly out of laziness (and missing a few sizes of .156" plugs). BTW, the Apple color monitor they sold with the IIgs works great as an arcade monitor in a much smaller size if you can set the sync polarity correctly. Fortunately, Defender has solder jumpers for selecting that. - Dave

14 years, 3 months

Toyota problems: tin whiskers to blame?

by driley＠mantaro.com

Hopefully another nail in the coffin for lead-free solder: http://www.edn.com/article/520531-Toyota_accelerations_revisited_hanging_by… It's a very brief summary, but it links to the entire NASA presentation. - Dave

14 years, 3 months

Speaking of programming languages for teaching

by legalize＠xmission.com

This paper might be interesting: "Snobol4: A Computer Programming Language for the Humanities" <http://www.robertgaskins.com/files/gaskins-gould-cal-snobol4-1972.pdf> -- "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, 3 months

for the Prolog and Forth nerds

by spectre＠floodgap.com

For people such as myself who are inordinately fascinated by Prolog, and terribly intimidated by things like the Warren Abstract Machine, here is a practical subset of Prolog written in the much easier to implement Forth along with various companion articles (including one on SKI combinators). http://soton.mpeforth.com/flag/jfar/vol4.html -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- A penny saved is stupid. ---------------------------------------------------

14 years, 3 months

Dr Dobb's Journal

by fpersen2000＠yahoo.com

Greetings; Like many of you here I am an old time home computer guy who got his start in 1976 when I built my first computer, an Altair 8800. I am writing to get some information on a number of Dr Dobb's Journals that I wish to sell. I would like some input on what an honest price would be. I am also trying to determine if I should sell these one by one or in volume sets. I have the following: Volume number? Issue # 1??? ??? ???????????????? 1,3,6, 10 2????????????????????????? 1,2,3,4,5,6,7,8,9 3????????????????????????? 2,5,6,7,8,9,10 4?????????????????????????? 1,3,4,6,7,8,9,10 5?????????????????????????? 1,2,3,4,5,6,7,8,9,10 6?????????????????????????? 1,3,4,5,6,7,8,9,10,11,12 7??????????????????????????? 2 Your input would be appreciated. Frank Relotto

14 years, 3 months

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