test-drb

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101090 discussions

by robert.jarratt＠ntlworld.com

Does anyone have a scan of an RX50 manual? I powered on the RX50 I just got, without a cable attaching it to the RQDX3 though. It flashes two red lights for a moment and then nothing happens, the doors do not appear to be unlocked, or I don't remember how to open them. It could be because I have not connected a cable, but I don't know. There are two floppies in the drive at the moment too. Thanks Rob

14 years, 1 month

Pertec interface tape drive

by elson＠pico-systems.com

cctalk-request at classiccmp.org wrote: From: Steven Hirsch <snhirsch at gmail.com> Subject: Re: need interface to CDC Keystone (92185) tape drive Message-ID: <alpine.DEB.2.00.1203210749121.2392 at duo> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed On Tue, 20 Mar 2012, Jon Elson wrote: > > Hello, > > > > I was referred by a member, Peter Wallace. > > We are trying to recover some programs from 9-track backup tapes. > I have a 9-track drive that interfaces to an ISA bus PC through a proprietary card. It worked the last time I fired it up (about 10 years ago) and has been in dry storage. Questions: - What is the bpi density on those tapes? This thing will not read the highest density tapes. - Where are you located? Well, some are 1600 BPI, some are 6250. I have verified my drive is working at both densities (before the SCSI adapter died.) I am in St. Louis, MO. I am working on an FPGA interface to the Pertec formatted interface, it ought to work, but I don't know how much fooling around it will take to get reliable data transfers. Jon

14 years, 1 month

Wang 2200mvp

by jcw1231＠pacbell.net

Until a few years ago I had a Wang 2200 MVP.? When I was using it in my high school classroom an administrator had the room cleaned and moved the system outside.? A sudden storm destroyed the CPU and drives.? I have several working Wang 2236 terminals if somebody has a need for one.? Also, I would like to locate a 2200 MVP to play with again.? I am also looking for homes for a pair of Wang PCs from about 1990, two different models, one set up for networking. ? John

14 years, 1 month

Wang 2200mvp

by rickb＠bensene.com

Jim Battle wrote a great Wang 2200 emulator that runs the actual 2200 microcode, so it is a very faithful emulation. It might help bring back some memories until you can find the real thing. http://www.wang2200.org/emu.html Rick Bensene The Old Calculator Museum http://oldcalculatormuseum.com JC White <jcw1231 at pacbell.net> wrote: >Until a few years ago I had a Wang 2200 MVP.? When I was using it in my high school classroom an administrator had the room cleaned and moved the system outside.? A sudden storm destroyed the CPU and drives.? I have several working Wang 2236 terminals if somebody has a need for one.? Also, I would like to locate a 2200 MVP to play with again.? I am also looking for homes for a pair of Wang PCs from about 1990, two different models, one set up for networking. >? >John

14 years, 1 month

Computer Graphics Museum collection pics

by michael.99.thompson＠gmail.com

> From:?Richard <legalize at xmission.com> > Date:?Thu, 22 Mar 2012 10:24:15 -0600 >> I am a volunteer at the RICM. The Calcomp systems are not in any >> danger of being scraped. > > heh heh, well I didn't expect you'd scrap them :). ?I just meant it > would be nice to hear of any progress made on getting them > functioning. > >> Maybe you should come for a visit and get some of them running? > > It's a long trip for me -- I'm in Salt Lake City. ?However, I'm likely > to be out on the east coast this summer and a side trip up to RICM > would be a good visit. ?I wouldn't have the foggiest idea where to > start on these Calcomp System 25s in order to get them operational, > however. ?Do you have documentation on them? ?User manuals? Service > manuals? We have boxes and boxes and boxes of documentation and spares. -- Michael Thompson

14 years, 1 month

FT: Data General Nova 2, Nova 1200, and DG terminal.

by js＠cimmeri.com

> ------------------------------------------------------------------------ > >> "js at cimmeri.com" <js at cimmeri.com> writes: >> >> >>> LOOKING FOR: >>> >>> other hardware: >>> - VT-201 or other DEC monochrome. >>> >> I think you mean VT-220. There is no VT-201. >> > > Or maybe VT102 (which did exist). > > -tony Oops. I meant, VR-201. - John Singleton

14 years, 1 month

Pertec interface tape drive

by mark.kahrs＠gmail.com

Speaking of which, has anyone ever seen any documentation on the Computer Logics ISA Pertec card?

14 years, 1 month

mockumentary?

by dennis_mailing_lists＠conus.info

Hi. Is there such thing as mockumentary? "A mockumentary (a portmanteau of the words mock and documentary), is a type of film or television show in which fictitious events are presented in documentary format. These productions are often used to analyze or comment on current events and issues by using a fictitious setting, or to parody the documentary form itself.[1] They may be either comedic or dramatic in form, although comedic mockumentaries are more common. A dramatic mockumentary (sometimes referred to as docufiction) should not be confused with docudrama, a fictional genre in which dramatic techniques are combined with documentary elements to depict real events." http://en.wikipedia.org/wiki/Mockumentary It could be a fake manual for non-existent computer/computer device or non-existent software written for fun.

14 years, 1 month

FT: Data General Nova 2, Nova 1200, and DG terminal.

by js＠cimmeri.com

I've a Nova 2, a Nova 1200, and D461 terminal with keyboard I'd like to trade off to any DG collectors. Working condition unknown -- I've not attempted to power them on (which would be foolish without going through them first). Restorable condition (I could restore them, anyway). The terminal is nice and fairly clean -- not a disgusting P.O.S. like I often see. The two chassis units appear to be rackmount style. I don't know anything about these machines, so don't know how complete or incomplete they are, but they each have a front panel and boards in the cage. I'm hazarding a guess they're likely best considered as parts machines. Feel free to PM me with any ?'s since I'm not sure what data is useful to provide. Can be picked up either from Washington, D.C. (northern tip), or near Frederick, MD. LOOKING FOR: drives: - ST-406; ST-412; ST-419 - CDC-9415* - CMI CM-5412 - IMI 5012H - MAXSTOR XT-2085 - Micropolis 1324A - Priam V170 or V185 other hardware: - PDP-11/34 half-height chassis complete with PSU -- do not need any logic boards. - VT-201 or other DEC monochrome. software: - Coherent - Venix with docs for DEC Pro 350. Thanks, John Singleton

14 years, 1 month

Cosmac Elf on breadboard

by alkopop79＠gmail.com

I wonder if anyone has experience with Cosmac Elf. I've been trying to build one on breadboard but have troubles with the input section. Please let me know if you have built one! Thanks Greg Lorincz

14 years, 1 month

And RA8x too, was Re: RA90 or RA92 disks

by bqt＠softjar.se

On 2012-03-23 08:20, Glen Slick<glen.slick at gmail.com> wrote: > Are you offering those up in return for something? I have an RA82 > here in the Seattle area that I have never been able to get to spin up > or do anything at all. I haven't been able to get anything out of the > diagnostic port. I have found the RA81 service manual online, but not > the RA82 service manual. It would be interesting to get it working > just to see it working. As far as I can remember or figure out, there is very little, if any differences between an RA81 and an RA82, so the service manual for the RA81 should work just fine. I hope you have removed the transport safeties if you try to spin it up. The diagnostics port is 300 bps, if I remember right. Hitting something like ^C should get its attention. You might also want/need to have both port selector buttons off to be allowed to play on the diagnostics port. I would think the details were in the service manual. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

14 years, 1 month

And RA8x too, was Re: RA90 or RA92 disks

by alanp＠snowmoose.com

On 3/21/12 10:00 AM, cctech-request at classiccmp.org wrote: > >> > On 03/19/2012 11:53 AM, Kevin Reynolds wrote: >>> >> Anyone have working RA90 or RA92 disks that they would like to part with? >>> >> Send me a private response with pricing and availability. I'm in the US. >> > >> > I make the same request, in case someone has a bunch. =) I'm interested >> > in RA8x drives as well. >> > I have a couple of RA81s that were working when I got them 13 years ago (but haven't been powered on since). Located in the Seattle area. alan

14 years, 1 month

SA72

by bqt＠softjar.se

On 2012-03-22 08:01, Ethan Dicks <ethan.dicks at gmail.com> wrote: > I have a couple of bare RA70 drives that I'd like to put into service > on machines that already have SDI controllers and no SCSI. My present > plans involve a plain shelf but a properly-fitting enclosure would be > nice. The SA72 takes more room than the plan RA70, you know. And you also need a special cable to the SA72. But on the other hand, you need a power supply if you use the plain RA70. But otherwise easily doable. Pick your poison. :-) Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

14 years, 1 month

SA72

by bqt＠softjar.se

On 2012-03-22 08:01, "Henk Gooijen"<henk.gooijen at hotmail.com> wrote: > From: "Johnny Billquist"<bqt at softjar.se> > Sent: Wednesday, March 21, 2012 9:46 AM > To:<cctalk at classiccmp.org> > Subject: Re: And RA8x too, was Re: RA90 or RA92 disks > >> > Hum. Correct me if I'm wrong, but isn't the SA72 the box that holds up to >> > 4 RA7x drives? Same physical size as one RA90? >> > >> > If so, then no, it don't hold 4 RA9x drives. Also, the RA70 works just >> > fine in it, as do all RA7x drives. RA70 is somewhat unique, though, in >> > that it was designed to also be usable without any front panel at all. So >> > there are dip switches on it that can be used to set the unit number. >> > >> > Johnny >> > >> > -- >> > Johnny Billquist || "I'm on a bus >> > || on a psychedelic trip >> > email:bqt at softjar.se || Reading murder books >> > pdp is alive! || tryin' to stay hip" - B. Idol > > You may very well be right Johnny. Of course I'm right. :-) Why do anyone even doubt that? :-) > I was just dumping my grey memory cells:-) I did not check the HW. > Isn't the SA72 a small slim long metal box with a power supply in the > middle and room for two RA[79]x drive at both ends? At the front side > at the top is a connector for the small front panel. The width of the front > is 0.5 of 19" so that two of these fit next to each other in a 19" rack. > If that's way off, I'd have to check what I actually have ... No, that's the thing. Yes, the PS is in the middle. It also have a rather special cable (or two if you want to use both ports) that come out. I don't know the right terminology here, but it's shaped like the standard D-sub, but is wider and higher, and have lots of pins. That cable splits into 4 SDI connectors at the other end. It only holds RA7x drives. One RA9x drive is the same size as the whole SA72. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

14 years, 1 month

mockumentary?

by a50mhzham＠gmail.com

Spinal Tap? At 09:16 AM 3/22/2012, you wrote: >On Thu, Mar 22, 2012 at 8:43 AM, Dennis Yurichev ><dennis_mailing_lists at conus.info> wrote: > > Hi. > > > > Is there such thing as mockumentary? > > > > "A mockumentary (a portmanteau of the words mock and documentary), is a > > type of film or television show in which fictitious events are presented > > in documentary format. These productions are often used to analyze or > > comment on current events and issues by using a fictitious setting, or > > to parody the documentary form itself.[1] They may be either comedic or > > dramatic in form, although comedic mockumentaries are more common. A > > dramatic mockumentary (sometimes referred to as docufiction) should not > > be confused with docudrama, a fictional genre in which dramatic > > techniques are combined with documentary elements to depict real events." > > http://en.wikipedia.org/wiki/Mockumentary > > > > It could be a fake manual for non-existent computer/computer device or > > non-existent software written for fun. > > >sure. Anyone remember the Rutles? > >Kelly 726 . [Temper] Man is a rational animal who always loses his temper when called upon to act according with the dictates of reason. --Oscar Wilde 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

14 years, 1 month

Pertec interface tape drive

by elson＠pico-systems.com

> > Pertec is a pretty simple interface with handshake lines. I would > imagine you shouldn't have much trouble. An FPGA may be overkill > (certainly harder to work with 5v); you may find it even easier to > just use a microcontroller. My Cipher F880 runs on just a Z80 > internally, nothing fancier than that. > My understanding of the protocol is the drive sets the speed it spits out bytes, and that it can be up to 1 Mbyte/sec. There is no handshaking, the read data is just clocked out as the feels like. I don't see how a Z80 can keep up with that unless your formatter runs a lot slower. In theory, GCR data coming off the drive at 75 IPS can flow in bursts up to 480,000 byte/sec. (GCR actually records 6400 9-bit characters/inch, the 6250 refers to the equivalent data byte density after the ECC redundancy data is removed.) Your F880 is of course a slower drive and maybe 800/1600 only, so the data rate can be much lower. I have a product that uses a Xilinx FPGA connected through the PC parallel port in EPP mode, and have used it as a development board for several oddball projects, and so a good deal of code reuse makes this an easier path for me. The only extra job is I have to add a buffer SRAM to my board as the on-FPGA memory is not enough to hold the largest tape block permitted. Jon

14 years, 1 month

Computer Graphics Museum collection pics

by michael.99.thompson＠gmail.com

> From:?Richard <legalize at xmission.com> > Date:?Tue, 20 Mar 2012 13:46:57 -0600 > Subject:?Re: Computer Graphics Museum collection pics > > In article <CAH1BU=_x5QzbjxP5__ZROP2xyAx6Nqmyjm=UMD37cn9YRAavQA at mail.gmail.com>, > ? ?Michael Thompson <michael.99.thompson at gmail.com> writes: > >> >> I didn't see any Calcomp System 25 Workstations in your collection. >> >> The RICM has LOTS of them. > >> > From: Richard <legalize at xmission.com> >> > I wasn't aware of these systems. [...] >> > This seems to be a workstation introduced in 1984. ?What kind of >> > graphics environment did it have? ?1984 is too early for X11 and also >> > I think too early for X10. >> >> The page for the Calcomps is here: >> http://www.ricomputermuseum.org/Home/equipment/calcomp-system-25 >> >> The RICM has LOTs of documentation on the systems, but have not >> powered one on yet. > > It seems the graphics was on a dedicated display peripheral and a text > screen was used for input and program interaction. > > Are you involved with the RICM? ?I'd be interested to know what > happens to these systems. I am a volunteer at the RICM. The Calcomp systems are not in any danger of being scraped. Maybe you should come for a visit and get some of them running? -- Michael Thompson

14 years, 1 month

still seeking RL01/02 unit select plug

by mcguire＠neurotica.com

Does anyone have a unit select plug for an RL01/02 drive, for unit 2, that they can spare? -Dave -- Dave McGuire, AK4HZ New Kensington, PA

14 years, 1 month

UK HAM Radio and Computer Exhibition :- The 50th Norbreck Amateur Radio, Electronics and Computing Exhibition

by dave.g4ugm＠gmail.com

The 50th Norbreck Amateur Radio, Electronics and Computing Exhibition will be held at the Norbreck Castle Hotel Exhibition Centre on Queens Promenade, North Shore, Blackpool, FY2 9AA. Doors will open at 10.30 and 10:15 for those with disabilities. Admission will be ?5 (under 14s free). http://www.narsa.org.uk/ As NARSA is an association of clubs any Computer Club is welcome to affiliate @ ?15 for which they get two tables at the exhibition, three exhibitors tickets and a share in any profits. A few trade tables still available, see http://www.narsa.org.uk/blackpool-rally/trade-bookings/ for details. (note if you get in quick you can still be squeezed into the stand list) It is mainly a radio show but there is always lots of computer gear on sale, much of it Vintage. Last year there were MAC Classics and BBC "B"s for sale. Dave Wade G4UGM Illegitimi Non Carborundum

14 years, 1 month

PDP8/e help finding parts

by trestivo＠cfl.rr.com

I've got a pdp8/e that I'm getting ready to sell but first I need to replace 3 of the toggles on the front. (not the actual switch, just the plastic.) Does anyone know where I can get some of these? I have the 3 pieces that need to replaced, it's just that the "nibs" are broken. Thomas Restivo Technical Assurance Resources, Inc.

14 years, 1 month

And RA8x too, was Re: RA90 or RA92 disks

by henk.gooijen＠hotmail.com

From: "Ethan Dicks" <ethan.dicks at gmail.com> Sent: Wednesday, March 21, 2012 8:34 PM To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: And RA8x too, was Re: RA90 or RA92 disks > On Wed, Mar 21, 2012 at 2:46 PM, Henk Gooijen <henk.gooijen at hotmail.com> > wrote: >> I was just dumping my grey memory cells :-) I did not check the HW. >> Isn't the SA72 a small slim long metal box with a power supply in the >> middle and room for two RA[79]x drive at both ends? > > Pictures? > > I have a couple of bare RA70 drives that I'd like to put into service > on machines that already have SDI controllers and no SCSI. My present > plans involve a plain shelf but a properly-fitting enclosure would be > nice. > > -ethan I can take a few pictures this weekend. Just got to find a good host for the pictures. My web space is near its limit. Any suggestions? The rack that holds the TU81+ tape drive has underneath the space for an RA8x drive. I had it that way, but one year ago I removed the RA82 and installed two of these SA72's. It is intended to be hooked up to the VAX-11/750, but the VAX has PSU "issues". I am pretty sure I have two more SA72 without drives, but contains the PSU is in it IIRC. However, even without any drives installed these things are good if you want to hurt your back :-/ So, shipping one is not an option. I even have a plate that is mounted in the rack ... If you wonder how the SA72 is mounted in a rack, given that its width is just half the width of the rack, well it just "hangs" on one side! The SA72 at the right side hangs on a plate mounted in the rack at the right side, and the SA72 at the left ... on a plate at the left side. Even such a plate is good for a few kilos on the scales! - Henk

14 years, 1 month

And RA8x too, was Re: RA90 or RA92 disks

by henk.gooijen＠hotmail.com

From: "Johnny Billquist" <bqt at softjar.se> Sent: Wednesday, March 21, 2012 9:46 AM To: <cctalk at classiccmp.org> Subject: Re: And RA8x too, was Re: RA90 or RA92 disks > On 2012-03-20 18:00, "Henk Gooijen"<henk.gooijen at hotmail.com> wrote: >> From: "Dave McGuire"<mcguire at neurotica.com> >> Sent: Tuesday, March 20, 2012 1:58 AM >> To: "General Discussion: On-Topic and Off-Topic Posts" >> <cctalk at classiccmp.org> >> Subject: And RA8x too, was Re: RA90 or RA92 disks >> >>> > On 03/19/2012 11:53 AM, Kevin Reynolds wrote: >>>> >> Anyone have working RA90 or RA92 disks that they would like to part >>>> >> with? >>>> >> Send me a private response with pricing and availability. I'm in >>>> >> the US. >>> > >>> > I make the same request, in case someone has a bunch. =) I'm >>> > interested >>> > in RA8x drives as well. >>> > >>> > -Dave >>> > >>> > -- >>> > Dave McGuire, AK4HZ >>> > New Kensington, PA >> >> Haha, I have at least 5 RA82 compete drives, but I really am*not* >> considering shipping them. Pick up only, but this time the chaps >> in the USA are at the wrong side of the big splash. > > RA drives, except the RA7x ones, are probably way too expensive to ship > longer distance. > >> I also have a few RA90 and RA70 IIRC, I'd have to check. >> I might be willing to sell one or two, but shipping from The Netherlands >> to anywhere will certainly be costly! And My testing will be very >> limited. >> I have an SA72 which can hold 4 RA9x drives, but I can not test them >> beyond power up to the "READY" state (IIRC). AFAICR, you can not >> simply install the RA70 in the SA72. > > Hum. Correct me if I'm wrong, but isn't the SA72 the box that holds up to > 4 RA7x drives? Same physical size as one RA90? > > If so, then no, it don't hold 4 RA9x drives. Also, the RA70 works just > fine in it, as do all RA7x drives. RA70 is somewhat unique, though, in > that it was designed to also be usable without any front panel at all. So > there are dip switches on it that can be used to set the unit number. > > Johnny > > -- > Johnny Billquist || "I'm on a bus > || on a psychedelic trip > email: bqt at softjar.se || Reading murder books > pdp is alive! || tryin' to stay hip" - B. Idol You may very well be right Johnny. I was just dumping my grey memory cells :-) I did not check the HW. Isn't the SA72 a small slim long metal box with a power supply in the middle and room for two RA[79]x drive at both ends? At the front side at the top is a connector for the small front panel. The width of the front is 0.5 of 19" so that two of these fit next to each other in a 19" rack. If that's way off, I'd have to check what I actually have ... - Henk.

14 years, 1 month

Preferred image format for HP single-sided 3.5" floppies?

by aek＠bitsavers.org

I have a small stack of single-sided disks that I need to image, and didn't realize that they are 18 sector with 0-16 256 bytes and 17 128 bytes, so Imagedisk won't work. What is the preferred container format? Looks like the Australian museum uses .td0

14 years, 1 month

OT: Google AdWords and Yahoo/Bing adCenter

by arkaxow＠gmail.com

I just started using Google Adwords and I?m trying to figure out how they charge. I just finished the free first time allotment of $75, now I have to add more money. Does anyone have any experience with this ? Also I?m looking into the Yahoo/Bing adcenter.microsoft.com. They don?t seem to offer a free first time allotment. Does anyone know of any way to get a free startup allotment ? Jeff Brace

14 years, 1 month

Free: Hughes Personal Earth Station

by devonstopps＠gmail.com

Not sure if anyone has any interest in a Hughes Personal Earth Station circa 1989 - was in use up until early 2011. I also have 3x serial interface breakout boxes with 4 ports each for it. Looks similar to: http://www.mebstore.com/items/item_display.aspx?iid=61910 http://www.thrustssc.com/thrustssc/Equipment/Hughes/PES_and_CODECs.JPG Free for pickup, item is in Toronto, ON, otherwise will be scrapped next week.

14 years, 1 month

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test-drb