test-drb

test-drb@ccmp.vtda.org

101090 discussions

by jeff.kaneko＠juno.com

-- Seth Morabito <sethm at loomcom.com> wrote: On Wed, Jan 21, 2009 at 5:06 AM, <emu at e-bbes.com> wrote: >> Quoting Gordon JC Pearce MM3YEQ <gordonjcp at gjcp.net>: >> >> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=12036621970 >>> >>> Two things I wonder about: How many has he got, and how hard >>>would it >>> be to make an SBC-6120-alike for the -11 with that? >>> >> >> What's wrong with the original J11's ? I think they look even nicer >>than >> the black ones > > >Availability. I have no idea where to find J11s or T11s. But these >Russian >clones are on eBay almost constantly. *BUT* is that's what's really inside the plastic package? I would really like to talk to someone who bought one, and actually fired it up. Not all of the fake electronic stuff comes from China :^P ____________________________________________________________ Want to put your personal touch on your home? Click for home improvement ideas and tips. http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw2eRIRomcdH8Pzf4yEI9rIXlf2…

17 years, 3 months

cctalk Digest, Vol 65, Issue 45

by fsmith＠ladylinux.com

On Tuesday 20 January 2009 17:25:42 cctalk-request at classiccmp.org wrote: Hi Tim, Good Eye, I had to look inside but I found a sticker for a Ball Brothers Model TV-50 :-) The main logic card is in fact a generic Digital VT-100 logic board. Although I would guess the proms are different. Unfortunately the CRT neck is broke :-( Was not packed very well at all by the shipper I guess I can search around for a CRT somewheres unless anyone has a idea. ?? So I guess between this and that SB-11 (And a TU-58 I don't have) we have the makings of something interesting for sure. This system did at one time reside in the custody of a Harvard professor according to whom I got it from. Wish I knew a little more about what it was used for back in the day. > Ah, those are very interesting pictures. I'm pretty sure the CRT and cage > and PCB are Ball Brothers units, can you look for stickers with their name? > Ball Brothers made CRT+deflection circuitry+ flyback modules used in > other equipment, and at one point I even had > an IMSAI cabinet with backplane and a Ball Brothers CRT incorporated into > the front panel. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 3 months

SB11

by fsmith＠ladylinux.com

On Wednesday 21 January 2009 06:19:57 Pete Turnbull wrote: > Not really -- it's a tabletop CPU/system box sold for OEM use -- in > other words a standalone unit you'd build a small system, such as a > process controller, into. It has a 2 x 2 backplane, arranged serpentine > style, so you could put up to four dual-height cards in it. It has one > gotcha -- no line-time clock. > > http://www.dunnington.u-net.com/public/PDP-11/QBus_chassis > > I don't think your monitor unit was ever meant for rack mounting, > either. Apart from having no obvious mounting points for rails, the > power inlet and switch would be inside and facing the side of the rack > if the CRT were facing out the front. I expect it's a tabletop unit, or > was mounted inside something else. Which is not to say it might not > have once sat on a shelf in a rack, of course. Ahh well no Line time clock is a gotcha. :-) Would have been a little easier to Divine its true use if the complement of cards were still in it. Well then what use would this be to a hobbyist other than the obvious hollow it out and stick a PC MB in it and create some Sim pdp11 thing ?? -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 3 months

harddisks again

by lehmann＠ans-netz.de

Hi, now I got some "models" a guy is offering me but I'm not sure about their interface: IBM 1615600 MOD 1 10SR-1 IBM 62 PC Magnetic Peripherals 47073251 Seagate Sabre 368 (92651505) Seagate ST43200K The Seagate Sabre seems to be SMD (I'm looking for SA1000 and a friend of mine is looking for SMD disks) Anyone else knows the interface of the above listed disk drives? -- Oliver Lehmann http://www.pofo.de/ http://wishlist.ans-netz.de/

17 years, 3 months

SB11

by fsmith＠ladylinux.com

Hi Peoples, Picked up a boat load of LS11 stuff today via E-Pay and I got an enclosure called a SB11. Markings on the back indicate its a BA11-VA with Model OSB11-EA I have searched high and low and only find vauge references to it in some scientists/professors engineering documents. Anyone know what this puppy is ?? I am guessing some sort of qbus dual height expansion thingamajig. Pictures here http://www.linuxgal.com/decstuff/sb11-1.jpg http://www.linuxgal.com/decstuff/sb11-2.jpg Also in that dir is a weirdo custom ?? VT100 with a tiny 4 inch screen. I am guessing this all prob sat in some rack at one time. http://linuxgal.com/decstuff/display1.jpg http://linuxgal.com/decstuff/display2.jpg http://linuxgal.com/decstuff/display3.jpg -- Kindest Regards, Francesca (Aka LadyLinux) Baltimore, Maryland

17 years, 3 months

Running 3 phase 780s on single phase power

by tshoppa＠wmata.com

Gordon writes: > Since extremely high current switchers are relatively cheap (at least > compared to getting three-phase installed, and massive aircon systems), > is there any reason why you *wouldn't* go down this route? Particularly > for a machine that's going to be on a lot? Go too far down that road and you just have a KL10 cabinet with a PC-clone emulator inside. At which point you may as well have kept the KL10 original and just had a PC-clone running an emulator too. Seeing as how the major operators of KL10's in the 80's were already retrofitting switchers in, I don't think that putting switchers in today would be the worst thing to do. But I bet the KL10's owner went out of his way to find one as original as possible, possibly passing over ones that had been retrofitted 15 or 20 years ago. One of the most enlightened attitudes is that since all 10's after the KI were already emulating (via microcode) a PDP-10, why not just do the emulation on a little PC-clone and call the operating system and emulator package "microcode"? Tim.

17 years, 3 months

WTB TU-58 tapes

by jhfinedp3k＠compsys.to

I asked this before, however, I am repeating my request since I don't seem to have received any responses. I would like to purchase about 8 TU-58 tapes. Sincerely yours, Jerome Fine

17 years, 3 months

Odd PDP-8/I

by pontus＠Update.UU.SE

Hi In one of the computer clubs books there is a drawn picture of an odd PDP-8/I. A bit of googling gave this: http://blog.iso50.com/wp-content/uploads/2008/08/windowslivewriterpdp8is-2c… (Same picture, but bigger: ) http://blog.iso50.com/wp-content/uploads/2008/08/windowslivewriterpdp8is-2c… Has anyone seen it in the wild, its a pretty wierd form factor, reminds me about the H316 Kitchen computer. Cheers, Pontus

17 years, 3 months

FSOT: two Lear Siegler ADM-3A terminals

by ken＠seefried.com

From: Jos Dreesen / Marian Capel <jos.mar at bluewin.ch> > Or, like in my case, USD 10 for a quite nice one, with external numeric > keyboard and graphics option.

17 years, 3 months

VT-100 BNC jacks

by tshoppa＠wmata.com

Gordon writes: > On Tue, 2009-01-20 at 18:06 -0500, Francesca C. Smith wrote: >> On Tuesday 20 January 2009 17:25:42 cctalk-request at classiccmp.org wrote: >> Hi Tim, >> >> Good Eye, >> >> I had to look inside but I found a sticker for a Ball Brothers Model TV-50 :-) >> >> The main logic card is in fact a generic Digital VT-100 logic board. Although >> I would guess the proms are different. >> >> Unfortunately the CRT neck is broke :-( >> >> Was not packed very well at all by the shipper >> >> I guess I can search around for a CRT somewheres unless anyone has a idea. ?? >Every so often this crops up... Is it a black-and-white CRT? Do you >know roughly what the scan rate is? >Perhaps you could use a tube from a scrapped TV. They can't be *that* >different. A regular VT-100 puts out composite/RS-170 video on a BNC jack on the back. (Classic problem from a few decades ago: people plugging the school's thinnet ethernet onto the VT-100 video out connector!) I don't see any BNC's on the back of Francesca's Franken-VT-100. But I'd be pretty sure the Ball Brothers unit just takes the composite video in. Didn't some early regular VT-100's use Ball Brothers screens and flybacks too? I remember a couple variations of the CRT/flyback boards some more reliable than the others. Somewhere I've got pictures of my garage completely filled with VT-100's! Tim.

17 years, 3 months

SB-11 (Mailing List Faux Pas)

by fsmith＠ladylinux.com

On Tuesday 20 January 2009 17:25:42 cctalk-request at classiccmp.org wrote: > I should have done the "Smart" thing and looked up BA11-VA on the google > :-) > > I see its a cute lil expansion box as I kinda though. Oh sorry for the top posting. I am a bit under the weather and I have a consulting customer who slaps me virtually if I don't top post. :-) Thanks for the help again identifying this stuff. I will be posting some more in the coming days as I am finally in enough health after the last few years being sick to start playing with the huge pile o vintage goodness crowding me and my family of cats out of house and home. (Although the cats seem to like playing balance on the old teetering PCs and 3100's on the top of the pile :-) ) Also missed was not including the original subject of I wish to ask a thousand pardons for that transgression as well. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 3 months

cctalk Digest, Vol 65, Issue 45

by fsmith＠ladylinux.com

On Tuesday 20 January 2009 17:25:42 cctalk-request at classiccmp.org wrote: Hi Tim, Wow Good Eye Again :-) Yep there are markings over a couple connectors that say Aux Power And Restart. Someone put a piece of masking tape with +5 +12 VDC as well. So I have a mini PDP11 right here. (Reading that link however indicates its a little short on power. Makes one's head spin as this prob predates the IBM PC and what a different world we could have had if Digital had Bill Gates port 86-DOS to this rather than the IBM PC. Oh wait I kinda like my Digital hardware by and large spared the indignity of running M$ anything. :-) Bad enough the Alpha was polluted with that half hearted Win NT port. > Another thought about the SB-11... were those connectors on the back for > sending power to a companion TU-58 drive? Is the SB-11 the same form factor > as the external TU-58 enclosure? We never used them like that, we had > a top-bottom stacked dual 8" drive from... MTI? hooked to our SB-11. > > Tim. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 3 months

Getting a PDP-11/05, RX11, RX01 working

by toby＠coreware.co.uk

I've made some good progress with getting my 11/05 back to full working condition. The stuck bit I had earlier this month I resolved by replacing the sense/inhibit board. Thanks to everyone who advised me on this. I've also got RS232 working on the 11/05s on board console port. After a hunt through many boxes of accumulated junk I came across a little box with an RS232 port on one side and a berg connector on the other. Within the box was a crystal and some level converters. This was exactly what I needed, providing a stable external clock (9600 baud) and using the TTL levels available on the berg connector to provide RS232. Next I acquired an M9301-YF which I fitted to the terminator slot closest to the CPU and booted into its on-board console. All worked well here and I could examine and deposit values into memory via it. Then in went an RX11 (into the SBC slot) which I hooked up to a RX02 with its switches set to make it behave as an RX01. When I tried to boot by typing DX into the console after about half a second of running the machine halts and displays a PC of 4 (IO Trap I believe). If I repeat with the power to the RX01 drive switched off it continues to run until the RX01 is powered on at which point it halts. The RX02 I know to work (as an RX02 at least) as I've connected it to a QBUS machine with RXV211 to confirm Anyone have any thoughts as to what is going wrong? One possibility that occurred to me is that the SBC slot is missing the NPR signal. I have read that this is necessary for an RX11 to work. How do I check if that is present and how do I put it in if its missing? Thanks, Toby -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

17 years, 3 months

Running 3 phase 780s on single phase power

by tshoppa＠wmata.com

Rich writes: > The electrical > engineer on our team very carefully located three phase-isolated outlets > for us, working from the power panel outwards, before we did anything > else. We tested the plug box for phase isolation before connecting > either VAX, and we had every internal breaker off and every internal > plug disconnected for several hours while we checked the power coming > through the main breaker. In my experience with getting 3-phase power run, even though there's a 50-50 chance that by pure luck he'll get the phasing correct to run the motors in the right direction, I inevitably find that with 100% certainty that the electrician has wired it up reverse of what is actually needed :-). Tim.

17 years, 3 months

Running 3 phase 780s on single phase power (was RE: hams on classiccmp)

by roger.holmes＠microspot.co.uk

On 19 Jan, 2009, at 23:29, cctalk-request at classiccmp.org wrote: > > Message: 7 > Date: Mon, 19 Jan 2009 11:39:13 -0800 > From: "Chuck Guzis" <cclist at sydex.com> > Subject: Re: Running 3 phase 780s on single phase power (was RE: hams > on classiccmp) > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <49746661.10189.338533BA at cclist.sydex.com> > Content-Type: text/plain; charset=US-ASCII > > On 19 Jan 2009 at 19:17, Roger Holmes wrote: > >> (Who has a 440v three phase computer drawing 13kVA which has three >> phase bridge rectifiers to generate fairly ripple free DC) > > What, no 40 hp MG set generating 400 Hz 3-phase? :) > > Cheers, > Chuck No but it was run off a world war two air ministry (diesel) engine driven generator for a few years. The generator was a 1700 cc twin cylinder unit with hand start and a flywheel weighing several hundred pounds. I had to keep fit to get that to start on a cold winters morning when the oil was thick and the cylinders were cold. Roger.

17 years, 3 months

SB11

by tshoppa＠wmata.com

Another thought about the SB-11... were those connectors on the back for sending power to a companion TU-58 drive? Is the SB-11 the same form factor as the external TU-58 enclosure? We never used them like that, we had a top-bottom stacked dual 8" drive from... MTI? hooked to our SB-11. Tim.

17 years, 3 months

SB11

by tshoppa＠wmata.com

Francesca writes: > Anyone know what this puppy is ?? We always called the SB-11 the "Shoebox 11" in our lab, it may have even been the official name. Very small PDP-11 Q-bus system. I think they were in some 70's or very early 80's DECDirect catalogs. > Also in that dir is a weirdo custom ?? VT100 with a tiny 4 inch screen. I am > guessing this all prob sat in some rack at one time. Ah, those are very interesting pictures. I'm pretty sure the CRT and cage and PCB are Ball Brothers units, can you look for stickers with their name? Ball Brothers made CRT+deflection circuitry+ flyback modules used in other equipment, and at one point I even had an IMSAI cabinet with backplane and a Ball Brothers CRT incorporated into the front panel. Tim.

17 years, 3 months

Subject: Re: substitute for TI TIL306/307 Display?

by rwindham＠chartertn.net

Frank, I saw a post where you had some TIL308 displays. I need some of these for a Yaesu transcever. Do you still have some and what is the price? Regards, Chuck

17 years, 3 months

FSOT: two Lear Siegler ADM-3A terminals

by dave＠drcircuits.com

Please advise availability of ADM-3 or 3A Terminals. Tnx David

17 years, 3 months

Parting out Mac II's in Seattle area

by michaelgreen42＠comcast.net

Well I couldn't get rid of too many of these whole and I need to move soon so I'm parting them out. Should be some memory, power supplies, brackets, drives, something worth it to somebody. Send me an email telling me what you are looking for and what you'll pay. Not looking to make a killing here just make it worth my time. PS: I don't think there are any very interesting pds cards just standard video ones.

17 years, 3 months

MGE EPS 2000 UPS available

by trovere＠thevalleyscw.tv

Do you still have the eps-2000 UPS ?

17 years, 3 months

Free: AT&T 5620 Terminals

by silent700＠gmail.com

I've got four of these classic terminals, but no keyboards and no mice. They are free for pickup in NW Chicago suburbs (60074.) They are in fair to rough shape. I have not powered any of them on. I need to reclaim the space they're taking up and would really rather not see these classics scrapped. Here's one in use with an AT&T 3B2 system: http://stat-graphics.org/movies/gifs/dyndisp85a.gif

17 years, 3 months

hams on classiccmp

by jeff.kaneko＠juno.com

-- "Roy J. Tellason" <rtellason at verizon.net> wrote: >> Alas my expeerience suggests the reverse. Back when computers were >> expensive, and chips were expensive, the manufacutrers took the >>trouble >> to put all sorts of protectinon in their machines to protect said >> expensive decices in the event of a failure. Now they don't bother. > >I would suspect that a younger crop of engineers coming up might have >some bearing on this too. :-) Actually, I would be more likely to suspect the current crop of engineering *managers* as a more likely cause (both pointy-haired and not). "My gawd, boy, those extra bits add $0.10 to our build cost! Do we really need that for the product to meet spec?" ____________________________________________________________ Protect your hands with high quality gloves. Click now! http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw1Jw8LLo6ya1s8LS5UU5BTSFgZ…

17 years, 3 months

LMI Lambda in San Diego needs temporary home

by sellam＠vintagetech.com

I have an LMI Lambda in San Diego that is waiting for me to come get it. The problem is that it's in a storage locker and the person holding it needs to close out the locker due to costs. I will be going down to SD in a few weeks for business but the LMI needs to be moved now. Is there someone who can go get it and temporarily store it until I can get down there? If not, it'll be lost. If someone can assist, please contact me directly. If it won't be feasible for me to retrieve it myself, I will want it to go to someone who can take it in. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

17 years, 3 months

the purge continues: free trs-80 stuff from austin, tx

by frustum＠pacbell.net

There are two categories here. First is stuff free for the price of shipping. Pick it up and it is 100% free. I don't want to ship each document to a different address. Hopefully someone wants it all. TRS-80 micro computer technical reference handbook (this is for the model I) Expansion Interface Hardware manual TRS-80 Technical Manual Troubleshooting (For Radio Shack Service Centers Only) TRS-80 Model III Service Manual TRS-80 Model 4 Service Manual TRS-80 Model 100 Technical Reference Manual LDOS Quarterly, not complete, mostly copies, but not all, 81-84 Some floppy disk alignment programs and Dysan alignment disks TRS-80 Assembly Language Programming (1st ed), Bill Barden --- The next category is free, but *must* be picked up at my house. If I cared to spend the time to find a box and pack it properly, I'd put it on ebay and get my $50 or whatever. This is a TRS-80 4P in *great* shape. It has very little yellowing as it has been in a leatherette carrying case for the past 20 years. I recently took it apart and tweaked the trimmer cap so 80 column display mode is solid again. Both drives work great, and I don't know of any defects. It comes with an original in the binder TRSDOS 6.0.2 manual, a Montezuma Micro CP/M manual, and about 100 floppies. Not all the floppies are usable on this system; some came from model I systems, or were configured for double sided drives (this machine has only single sided floppies, which was the norm for the 4P). I hate to give it up, as I spent a couple years messing around one Model IIIs in high school, so come and get it before I change my mind. :-)

17 years, 3 months

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