test-drb

test-drb@ccmp.vtda.org

101090 discussions

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

Old scans of 73 magazine available

by microcode＠zoho.com

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

13 years, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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, 9 months

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