test-drb

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101090 discussions

by charlesmorris800＠centurytel.net

Now that I have a working PDP-11/23+ system, I find (as I should have known from many similar projects) that the "fun" was really in accumulating the pieces and getting it working. I don't really have anything I want to DO with it (although I suppose that is the whole point of classic computing :) but I have run ADVENT. anyway I was wondering if someone else would be interested. In brief, it's an 11/23+ KDF-11BA CPU (the chassis front panel is embossed "11/03" though) with max 4 Mb RAM, two RL02's, VT220 and a 16-line serial card. Has a pack with RT-11 v5.mumble up and running. I have what appears to be a TSX-Plus pack but don't know how to generate a working system. "Corporate cabinet" in decent shape. Paint on the RL02 fronts has seen better days. Can send pics this weekend. It's in West Plains, MO (65775), about 200 mi southwest of St. Louis, 100 miles southeast of Springfield, MO. If I could find someone to help me get it down the stairs I could deliver it to St. Louis (or I could disassemble it if necessary and carry the pieces down) since I work there every week. Let me know if there's any interest - contact me offlist and make me a reasonable offer. I hate to see it just gathering dust and my PDP-8/A system (two RL02's and ASR33 Teletype, running OS/8) is enough vintage computing hardware for now :) -Charles

17 years, 3 months

Hams (was Re: thinking of selling my PDP-11/23+)

by ethan.dicks＠gmail.com

On Fri, Jan 16, 2009 at 9:25 PM, Gordon JC Pearce MM3YEQ <gordonjcp at gjcp.net> wrote: > On Fri, 2009-01-16 at 15:04 -0200, Alexandre Souza wrote: > >> Pu1BZZ Alexandre :) > > Wait, wait, you're another radio amateur? Not surprised there's a > crossover with classic computing. Wonder who else? N8TVD Technician _with_ code (not that it matters anymore) -ethan

17 years, 3 months

Japanese pc emulators

by brad＠heeltoe.com

I found this home page while looking at qemu for windows. Looks like he's done a lot of work on Japanese pc emulators. Perhaps this is old news. http://homepage3.nifty.com/takeda-toshiya -brad

17 years, 3 months

hams on classiccmp

by shoppa＠trailing-edge.com

N3QE, formerly KA0BTD. Got my novice ticket at age 10. I was basically inactive for 20+ years from entering college until 2007 when I started dragging out the old Heathkits from my childhood and hanging wires in the trees. Ironically, it was computers and girlfriends in college that distracted me from radio; looking back I can see that compared to ham radio they were a waste of time :-). Especially in winter I hang out on 80M CW many evenings and manage to do something for many of the big CW contests/events. Even though I've got a lot of old rigs, my preferred rig is a lowly HW-16 and my antenna is a 130 foot doublet hanging between two trees, 90 feet up, and fed by ladder line. Tim

17 years, 3 months

offer: old book

by rtellason＠verizon.net

Got this book here, maybe somebody would care to take it off my hands and offer a little something for it? Title is "Infor World PC Secrets", by Caroline M. Halliday. Copyright date is 1992. There seems to be a couple of 5.25" floppies in a sealed pouch inside the back cover. Front cover says a whole lot that I won't detail here but includes "Covers DOS 2-5 & Windows (I'm assuming they mean 3.1 here), MCA, EISA, 286, 386, & 486 PCs". Anyone interested please feel free to contact me offlist. -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin

17 years, 3 months

Printer ribbons

by roger.holmes＠microspot.co.uk

On 17 Jan, 2009, at 17:25, cctalk-request at classiccmp.org wrote: > > Message: 9 > Date: Fri, 16 Jan 2009 23:33:05 -0800 > From: Ian King <IanK at vulcan.com> > Subject: Printer ribbons > To: " (cctalk at classiccmp.org)" <cctalk at classiccmp.org> > Message-ID: <FF6AB92D97A23A409701CDBF66F03FCD2A56EE05 at 505fuji> > Content-Type: text/plain; charset="us-ascii" > > When I acquired my PDP-11/34, I also received a Centronics 503 > printer, along with an entire case of ribbons for said printer. > They have a part number of 63002293-5001. It's a black nylon ribbon > on two spools. These are NOS. I haven't been able to identify > anything that uses them - and I mean anything, because I can't find > anything on the Web about the Centronics 503, either. > > Does anyone have any leads on this? I'd like to find that these > ribbons are worth something to someone, because I'll never use more > than a few in my lifetime but I don't want to just trash them. > Thanks -- Ian Googling the part number says they are 1 inch wide by 36 yards and fit Centronics 101,101A,101R,102,102A and103. Stangely no mention of a 503. I was checking in case they fitted my ASR33 but it uses narrower ones. I see lots of Teletype paper and paper tape on eBay but never ASR/KSR/ RO 33 ribbons. Probably easy to get if you know what to ask the suppliers for. Roger Holmes (In England)

17 years, 3 months

hams on classiccmp

by marvin＠west.net

> Wonder who else? I'm VERY active with ARDF (Amateur Radio Direction Finding.) Check out the www.homingin.com So. Cal results and the US ARDF team to give you an idea. I got my extra only so I didn't have to worry about the frequency when putting on 80M hunts. Marvin, KE6HTS

17 years, 3 months

ebay idiots

by ard＠p850ug1.demon.co.uk

> > I had an interesting episode recently. I was interested in an item that a > surplus trader had, in fact he had 3 of them. The items were being offered > as Buy It Now with free shipping in the US. I asked what he would charge to > ship to the UK, the response was $30 *each* on top of the Buy It Now price > which obviously must have already included an allowance for shipping, with > no apparent option even to combine the shipping. Without knowing what the items are, there's no way I could know how much it would actually cost to ship them to the UK. It may be that $30 is a reasonable _difference_ betweeen the UK and US shipping costs. The things that annoy me are sellers who have _ridiculously_ high shipping costs. There's a guy who's got some manuals for sale -- fairly thin manuals, no binders or anything like that. His shipping charge to the UK is something over \pounds 60.00. Now, I relaise that filling in tyhe customs form for overseas shipping takes time, and that it's reasonable to have to pay for that. But, darn it, that charge is excessive compared to the shipping charged by other sellers for much larger/heavier/more delicate items. As with others here, I get annoyed when things are not packed adeguately and arrive damaged. I would be happy to pay more for proper packing on a rare device. And I wish sellers would (a) get in touch if there's a delay in sending out the package, and (b) would actually let me know when they send it. If I am not in to receive the parcel, it gets taken back to the post office or sorting office then (a) I have to go and collect it and (b) it appears such packages are much more likely to be damaged. So I want to be in when it's delivered. On the other hand, I don't want to have to wait around for a parcel that's not even been sent yet. A short e-mail from the seller 'I sent it on $date' would be much appreciated. -tony

17 years, 3 months

Hams (was Re: thinking of selling my PDP-11/23+)

by charlesmorris800＠centurytel.net

On Fri, 16 Jan 2009 23:44:19 -0600 (CST), you wrote: >>>> Pu1BZZ Alexandre :) >>> >>> Wait, wait, you're another radio amateur? Not surprised there's a >>> crossover with classic computing. Wonder who else? WB3JOK since 1976... now /0 in Missouri. Yes, 75m is a belchfartfest sometimes worse than CB, but there are plenty of other HF bands as the cycle starts to recover... also still some interesting nets on 40m. Check out the 72 Chew (www.ragchewers.net) on 7272 KHz :) 73 -Charles (guess no one wants the 11/23, maybe I'll try fleabay :)

17 years, 3 months

hams on classiccmp

by k0vj＠arrl.net

Al Kossow wrote: > Wonder who else? > > probably lots.. > I'm K0VJ and have lurked on classiccmp for many years. My ham interests run mostly to QRP CW, building compact homebrew CW rigs, and restoring classic tube gear. Got my first license (N2EBX) back in early 1983 when the exams were still being given by the FCC. I've seen a lot of changes, had a lot of fun, and am currently not-so-patiently waiting for the sunspots to come back!

17 years, 3 months

Printer ribbons

by IanK＠vulcan.com

When I acquired my PDP-11/34, I also received a Centronics 503 printer, along with an entire case of ribbons for said printer. They have a part number of 63002293-5001. It's a black nylon ribbon on two spools. These are NOS. I haven't been able to identify anything that uses them - and I mean anything, because I can't find anything on the Web about the Centronics 503, either. Does anyone have any leads on this? I'd like to find that these ribbons are worth something to someone, because I'll never use more than a few in my lifetime but I don't want to just trash them. Thanks -- Ian

17 years, 3 months

hams on classiccmp

by nico＠Farumdata.dk

>At 10:24 PM 1/16/2009 -0500, you wrote: >>On Friday 16 January 2009, Al Kossow wrote: >> > > Wonder who else? >> > >> > probably lots.. >> > Nico in Denmark, licensed since 1972 or so. OZ 1 BMC

17 years, 3 months

hams on classiccmp

by jeff.kaneko＠juno.com

-- steve stutman <steve at radiorobots.com> wrote: Paxton Hoag wrote: > On Fri, Jan 16, 2009 at 6:44 PM, Al Kossow <aek at bitsavers.org> wrote: > >>> Wonder who else? >>> > > KE7ZFG - New ham, January 6, 2009. I should have done this 40 years > ago when I had much more time for radio. > > Paxton > > >KL7JT > >Did it 42 years ago, when I did have time for radio. hihi KH6JJN since 1977. And I *proudly* retain the only callsign I've ever held, issued in my home state of Hawaii. There are so many things in our world that change, there should be at least a *few* things that stay the same. 73's-- Jeff ____________________________________________________________ Chart your path to success with a smart new business plan. Click here! http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw3BIs8K3lpfqKylvZg5CTRR9uv…

17 years, 3 months

Hams (was Re: thinking of selling my PDP-11/23+)

by ajp166＠bellatlantic.net

> >Subject: Hams (was Re: thinking of selling my PDP-11/23+) > From: "Ethan Dicks" <ethan.dicks at gmail.com> > Date: Sat, 17 Jan 2009 00:15:05 -0500 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >On Fri, Jan 16, 2009 at 9:25 PM, Gordon JC Pearce MM3YEQ ><gordonjcp at gjcp.net> wrote: >> On Fri, 2009-01-16 at 15:04 -0200, Alexandre Souza wrote: >> >>> Pu1BZZ Alexandre :) >> >> Wait, wait, you're another radio amateur? Not surprised there's a >> crossover with classic computing. Wonder who else? > >N8TVD > >Technician _with_ code (not that it matters anymore) > >-ethan We are everywhere... KB1GMX Extra I like my old tech call. Allison

17 years, 3 months

hams on classiccmp

by james＠jdfogg.com

> > Wonder who else? > > probably lots.. > > Eric Smith just got his licence. > I know Don North is, as am I (wb9ggj) I'm former N1QCO, Presently KB1Qff (that needs to change, I'll be using the vanity call program). I spent a lot of time and money to get on HF this time around and was sorely disappointed to find it a lot like CB radio. And it's not the nubies making it a chore to listen.

17 years, 3 months

Novell 68K file server

by james＠jdfogg.com

> Here are some pics of a Novell file server circa 1987. > http://bitsavers.org/pdf/novell/68k_file_server > > Was wondering if anyone had documentation or software for > this. I had some of the external dual drive scsi boxes for > these at one point. This reminds me of a similar oddity I used to support years ago. 3Com made a server, and an OS called 3+ Open. As I recall, it was an OS/2 - LAN Manager derivative.

17 years, 3 months

ecycling

by aek＠bitsavers.org

> There seems to be a recent trend on ebay for places that collect > electronics for recycling to have someone who picks out the "old" items > for sale on ebay. They have been cherry picking the incoming stuff for years. The big one around here is Computer Recycling Center, next to Weird Stuff (who is in the same biz). Most modern PC stuff they get goes to schools, they eBay the stuff they can get money from, and put the dregs up for sale on Saturday mornings. Feeding frenzy at 9:00 AM when they open. I wander by every once and a while to pick up cheap PCI cards, or the odd bit of old software no one else wants. Most of the store front junk stores around here disappeared as manufacturing left the valley, and the bottom feeders from bankruptcies go directly to eBay now with no retail presence.

17 years, 3 months

DC319 DLARTs and T11s (was T-11 ....)

by ajp166＠bellatlantic.net

> >Subject: DC319 DLARTs and T11s (was T-11 ....) > From: "Bob Armstrong" <bob at jfcl.com> > Date: Fri, 16 Jan 2009 07:25:17 -0800 > To: <cctalk at classiccmp.org> > >>A while ago, Choctaw Bob ]bob099 at centurytel.net] wrote: >> >> [Schematic of Peter McCollum's hand built T11 SBC] >> Schematic here http://www.geocities.com/saipan59/dec/t11.jpg > > I just got around to looking at this (sorry - been busy :-) and while it's >nice and simple, it uses a 6850 UART for the console. It's easy enough to >interface the 6850 (or any other modern UART for that matter) to the T11 >bus, but it's not going to be even remotely PDP-11 compatible. If you want >to have any hope of ever running any real PDP-11 software, you're going to >need a DL11/KL11 compatible console interface. DLARTs are hard o find. I have a dozen t11s and one DLART. > For the T11 that means you also want a DC319AA DLART (a "DL-11 compatible >UART chip") chip, and after looking around those seem to be far more >difficult to come by than the DCT11 CPU chips. Does anybody have a pile of >DC319 chips handy, or know where they can be found? Unlike the T11 chips, >which can be harvested from a lot of fairly common and not very valuable DEC >boards (e.g. RQDX3s), I don't know of any good donor for DLARTs. There are >a couple on my FALCON SBC-11/21 board, but I'm hardly willing to take it >apart for this project :-) Actually a 6402 (two or three are better) and the logic to do a ful DL isn't bad. With at least two then you can do a Tu58/TU58sim as a disk and have a real bootable 11. You also want at least 28KW of ram (2 32kx8 rams will do it) and TUboot in a small eprom mapped at boot. > If you can't find a DC319, then the alternative is to build a DL11 >compatible interface using a standard UART like the 6402 and a handful of >discrete logic. I think the minimum you could get away with would be to >implement the DONE and INTERRUPT ENABLE bits (bits 6 and 7) for both the >receiver and transmitter CSR, and then to implement the standard vectors at >60/64. Oh, and of course the data registers for the transmitter and >receiver. > > The KL11 also implements a MAINTENANCE bit, a BUSY bit, and a READER >ENABLE bit, but a) we have no reader, b) I doubt (I'm hoping) much software >ever looks at the BUSY bit, and c) probably nothing uses the MAINTENANCE bit >except the diagnostics. Try to find the logic for DLV11J as that has basic serial. You do not need all the bits but most are handy and you also need to generate a valid vector for console (60Q) and also for any other port. > ISTR that DEC had an "official" standard written down for exactly what was >required of a DL-11 compatible serial interface, but I can't find it >anywhere. Microcomputer handbook. I'll try to find something more. Allison >Bob >

17 years, 3 months

offer - OS/2 for the PDP-11

by dgahling＠hotmail.com

Yes, you read that correctly. I have in my possession a TK-50 tape for the PDP-11 system which contains none other than OS/2 operating system. Many people have claimed this never existed. But I have the tape! I had done a directory dump of it and can supply it. One other person who's checked the directory listing has said it is authentic. I'm not sure what to do with it, and I believe IBM made OS/2 open source, so technically it should be "free" of it's chains maybe someone can turn it into something useful, or just run it and have the most unique PDP on the planet, I don't know... whatever :) anyhow, it's a really weird bit of computing history, and I'd hate for it to be lost. it should be in a museum :) Dan. _________________________________________________________________ Use fowl language with Chicktionary. Click here to start playing! http://puzzles.sympatico.msn.ca/chicktionary/index.html?icid=htmlsig

17 years, 3 months

ebay idiots

by legalize＠xmission.com

Take a look at item # 130281137792 -- an HP2647A terminal with no keyboard, some rust and a fairly bad case of screen rot. The seller listed it yesterday for $900 initial bid or $1500 buy-it-now. I politely sent them a note explaining that their prices were an order of magnitude too high, particularly considering the condition of the unit. So what did they do? Dropped it to $400 opening bid. Yeah, right. Terminals are getting scarce, but not *that* scarce -- its more likely that people's interest in serial terminals would dry up before they'd pay through the nose for a 2647A. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

17 years, 3 months

A few newb/background questions about the XKL TOAD

by aek＠bitsavers.org

> 4. Do the freeware copies of TOPS-20 floating around TOPS-20 is not "freeware". There is nothing in the software distributions that claims it is so. XKL bought the rights when DEC got out of the 36-bit business. Not asserting your rights to something is quite different from an assertion that it is "freeware". This is also one of those rocks you really don't want to turn over..

17 years, 3 months

Novell 68K file server

by aek＠bitsavers.org

Here are some pics of a Novell file server circa 1987. http://bitsavers.org/pdf/novell/68k_file_server Was wondering if anyone had documentation or software for this. I had some of the external dual drive scsi boxes for these at one point.

17 years, 3 months

XKL TOAD

by aek＠bitsavers.org

> Actually, he's gotten pretty far on it. Good to hear he's had time to work on it again. He hadn't for quite a while with everything that's been going on. I had forgotten to ask him about it when I talked to him in Dec.

17 years, 3 months

what harddisk is this?

by lehmann＠ans-netz.de

Hi, I got pictures from someone regarding an 8" harddisk. I wonder if someone can tell me what model this is and/or what interface it is. I guess it is (sadly :() not SA1000 - maybe SMD? http://files.pofo.de/harddisk/ -- Oliver Lehmann http://www.pofo.de/ http://wishlist.ans-netz.de/

17 years, 3 months

DC319 DLARTs and T11s (was T-11 ....)

by bob＠jfcl.com

>A while ago, Choctaw Bob ]bob099 at centurytel.net] wrote: > > [Schematic of Peter McCollum's hand built T11 SBC] > Schematic here http://www.geocities.com/saipan59/dec/t11.jpg I just got around to looking at this (sorry - been busy :-) and while it's nice and simple, it uses a 6850 UART for the console. It's easy enough to interface the 6850 (or any other modern UART for that matter) to the T11 bus, but it's not going to be even remotely PDP-11 compatible. If you want to have any hope of ever running any real PDP-11 software, you're going to need a DL11/KL11 compatible console interface. For the T11 that means you also want a DC319AA DLART (a "DL-11 compatible UART chip") chip, and after looking around those seem to be far more difficult to come by than the DCT11 CPU chips. Does anybody have a pile of DC319 chips handy, or know where they can be found? Unlike the T11 chips, which can be harvested from a lot of fairly common and not very valuable DEC boards (e.g. RQDX3s), I don't know of any good donor for DLARTs. There are a couple on my FALCON SBC-11/21 board, but I'm hardly willing to take it apart for this project :-) If you can't find a DC319, then the alternative is to build a DL11 compatible interface using a standard UART like the 6402 and a handful of discrete logic. I think the minimum you could get away with would be to implement the DONE and INTERRUPT ENABLE bits (bits 6 and 7) for both the receiver and transmitter CSR, and then to implement the standard vectors at 60/64. Oh, and of course the data registers for the transmitter and receiver. The KL11 also implements a MAINTENANCE bit, a BUSY bit, and a READER ENABLE bit, but a) we have no reader, b) I doubt (I'm hoping) much software ever looks at the BUSY bit, and c) probably nothing uses the MAINTENANCE bit except the diagnostics. ISTR that DEC had an "official" standard written down for exactly what was required of a DL-11 compatible serial interface, but I can't find it anywhere. Bob

17 years, 3 months

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