- test-drb@ccmp.vtda.org - classiccmp.org

by jpl15＠panix.com

On the back of the VS 3100 is a DEC SCSI connector that I would like to be able to adapt to a 'normal' SCSI I cable (Amphenol Blue Ribbon connector). The 2nd choice would be to connect to once of the spare cables inside the box... Anyone have any info on an available adapter for this? Googling didn't help much... Long shot: was there ever a Pertec formatter made for the VAXstations? Or SMD interface? Just curious... Cheers John

22 years, 2 months

4
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HP COS Manual on eBay

by jpl15＠panix.com

HP 85001A Cassette Operating System manual http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2588251229&category=25409 Cheers John

22 years, 2 months

1
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PAGING Dan Cohoe

by waltje＠pdp11.nl

Dan, Your email is not working. Got your voicemail msg, sent a copy of the original message to your alternate address. I'm in LA now, but still reachable by phone. (and, thanks to Starbucks, also by email again ;-) Fred -- Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist Visit the VAXlab Project at http://VAXlab.pdp11.nl/ Visit the Archives at http://www.pdp11.nl/ Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Mountain View, CA, USA

22 years, 2 months

1
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pdp problems

by dan_williams＠ntlworld.com

I am having problems with the pdp 11/04 I picked up last week. If I power on with the machine without the extra cards, I get output on the la36 with a $ prompt. So far so good. But with the card cage connected the run light is permenantly on (ie. with halt switched), with no output.on anything (There are two rs232, la36 and a display unit) So the main questions are : what could cause this ?. The main cpu box has a 7856 which the la36 is connected to, also a 7800 which has an rs232 cable connected to it, how do I get the console output to this so I can use vtserver on it ? The controller card for the rx01 is in the extra card box, In the short term can this be moved to the main box ? It has a dead rk11-d and an untested rk11-c with no power supply unit and no case. What sort of power supply runs this, I also picked up about 5 different power supplies with this, so one of these might do the trick. Thanks for any help Dan

22 years, 2 months

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LEDs Was: Re: Emulation (Was: Emulators of Classic

by india_50＠yahoo.com

well, of course, they wouldn't be cheap to produce on a wafer like other chips. Also, i don't think it is feasible as such will not be able to handle all the power that would be o/p(heat i mean), which would be in Watts!!(too high for ICs) therefore i don't think it is possible to get led's for the 75dpi screen ________________________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html

22 years, 2 months

2
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LEDs Was: Re: Emulation (Was: Emulators of Classic Computers))

by brad＠heeltoe.com

der Mouse wrote: ... >What I really want to build, y'see, is a cellular automaton machine. >Ideally, it would be little modules that abut one another and >communicate neighbour cell state between modules somehow. Then add a >little logic behind each LED, and clock them in parallel. ah, a CM-1 :-) I liked the cm-1 but I would allow them all to have independent program counters... :-) -brad

22 years, 2 months

2
1
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TI99/4a and expansion chassis

by ghldbrd＠ccp.com

Just found the expansion chassis at a hamfest for $1, and wondering if there is any documentation online for it. I'd like to try to see if I can save some programs, etc. It has the bus interface card, floppy controller, RS232 adapter, and the 32k memory module too. Any of you TI fans out there please contact me off-list. Gary Hildebrand St. Joseph, MO

22 years, 2 months

1
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PDP-11 disassembler

by bqt＠update.uu.se

On Sat, 17 Jan 2004 "Jay West" <jwest(a)classiccmp.org> wrote: > Someone contacted me about having a PDP-11 disassembler, with source code, > under the GPL license. Would folks here be interested in that? Not to disencourage you, but there are already several in the DECUS library. Mostly written in MACRO-11 admittedly... I usually use DOB on Magica. Johnny Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)update.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

22 years, 2 months

1
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LH0080

by lyosnorezel＠yahoo.com

Message: 16 Date: Sat, 17 Jan 2004 11:12:27 +0100 (CET) From: Christian Corti <Christian.Corti(a)studserv.uni-stuttgart.de> Subject: Re: LH0080 On Thu, 15 Jan 2004, Lyos Norezel wrote: ?!?!? Pinout, specification etc. are identical to those of a Zilog Z80. It's just a second source part. Thanks for writing Christian... Completely identical in EVERY way to the zilog Z80? Kool... that make my work much easier. Thanks. Lyos Norezel --------------------------------- Do you Yahoo!? Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes

22 years, 2 months

1
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Programming 1702 EPROMs, ProLog Programmer question

by rigdonj＠cfl.rr.com

I've been playing with my old Pro-Log M900 programmer this morning and I've figured out how to duplicate 1702 EPROMs. But I haven't figured out how to use the memory buffer in the programmer. I THINK I've figured out how to read the buffer contents and change them but something is wrong. When I change the contents and then try to list them, they're reset to all FFs. Either I'm not changing them or I'm not reading them or when I switch >from edit to list they're being reset. I also haven't figured out how to dump an EPROM to the buffer or program one from the buffer. Anybody know how to use the M 900? I have a manual for the M 980 but it doesn't help. The main confusion seems to be figuring out exactly what the Memory Buffer vs Normal switch does. Joe

22 years, 2 months

1
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MicroVAX I update part II the sequel

by witchy＠binarydinosaurs.co.uk

Evenin' folks, OK, I've just finished (for now) trying to get a full POST out of the VAX. It needed a dummy load to powerup with no cards or devices present so I used an old suspect RD54. Voltages fine and stable so in with the CPU cards and..... it passes the CPU tests and stops at 3 on the LED. The VT220 shows '00000000 03' which I took to mean it hadn't found any memory. RUN light stays off. 'Fine,' I think, and put the 1mb memory board in. Still stops at 3, and sometimes the 'ready' button and 'drive 1 write protect' LED flash alternately. It hasn't got to accessing the RQDX2 yet, I'm making the assumption that tests 2,1 and 0 are the same as they are for most other microvaxen. Has anyone got a copy of the MV I owners guide or know if it lives on an FTP server somewhere? The backplate has the list of tests on and according to it '3' is marked as '640K??' but it stops there no matter which mem board I've got installed, and I don't believe they're both toast. I'm reluctant to borrow a 4mb board out of one of my other machines in case it gets nuked. Could be a suspect backplane I suppose. Any clues? Cheers :) -- Adrian/Witchy www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years, 2 months

2
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MicroVAX I update part II the sequel

by TRASH3＠splab.cas.neu.edu

The leds and patch panel display show 7 through 1, with zero being control passing to secondary bootstrap. DAP leds Led display on, on, on 7 microverify failed before completing the data path microsequencer test on, on, of 6 error found on DAP module on, of, on 5 Error found on MCT module on, off, off 4 undetermined error in DAP/MCT interface off, on, on 3 microverify worked as expected if bootstrapping was attempted, bad memory was found off, on, off 2 no boot device was found off, off, on 1 unable to boot from selected device off, off, off xxx control passed to secondary bootst. This from the januaryu 1984 microvax I cpu technical description. Joe Heck

22 years, 2 months

2
1
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Emulators of Classic Computers

by india_50＠yahoo.com

hey, u know what, building a single board computer with an 8088 isn't all that difficult and a lot of circuits are already available. one can also design a custom based computer as per the requirements. infact, the only problem would be in loading the monitor program, which can either be copied from retail versions, or can written afresh(tested ofcourse), and then used. ________________________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html

22 years, 2 months

1
0
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IBM PS/2 Model 25

by danjr＠voyager.net

I have put this out on the list before, with limited response. I am looking for a good (preferrably working) IBM PS/2 Model 25. I would also prefer one with a hard drive of some kind. Thanks Dan

22 years, 2 months

1
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Webster SRQD11-B and DEC RD-54

by cmcnabb＠4mcnabb.net

I've been trying to get an RD-54 to work with an SRQD11-B Controller. I finally figured out the the SRQD11-B wants the drive to be select to either 1 or 2, instead of 3. I now have another, more troublesome, problem. The drive acts like it is selected to both 1 and 2 at the SAME TIME!. An access to either will illuminate the drives activity light. Everything hangs after that. The controller works fine with a Quantum Q540 drive. So, is there some kind of Jumper or something on the RD-54 that would cause this kind of behavior? I will probably bring the drive home this weekend and try it on an RQDX-3 just to see if I get the same problems. Of course, I'll change the drive select to 3 first.

22 years, 2 months

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10
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Pickles & Trout IEEE 488 manual needed

by jack.rubin＠ameritech.net

Anybody have a copy of the manual for the P&T 488 S100 card? I'd like to buy/borrow/download one - and I'll be happy to scan and post if others are interested. Jack

22 years, 2 months

2
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FW: Old IDE hard drives

by CCTalk＠catcorner.org

I've been having server troubles and never saw this come accross. Anyway, I think it's a good idea for getting rid of old PC junk, rather than just tossing them in the landfill. > From: Joe Stevenson > To: Classic Computers Mailing List > Sent: 1/13/2004 7:41 AM > Subject: Old IDE hard drives > Is there any interest in older IDE hard drives, 170-540MB? > I listed them on eBay, but got no response. I probably should have > posted them to the list, but I wasn't sure that was allowed, so I > didn't. Well, if no one else makes a claim, the older smaller capacity drives are usually in demand for amateur radio clubs. I have a reserve here for my local club (in northern NJ). As an incentive, most of these clubs in the US are 501(c)3 corporations. You would be able to take these as a tax deduction. Find comparables on a refurb site, save the comparable resale value from when you donate as documentation of a resonable price, and count them as donations at the end of the year. Much of this also applies to older 486 computers. A lot of the software still used on the packet backbone (where it still exists) will not run on newer machines. Of course, I am not an accountant (IANAA?), so please verify all of this, especially the comparables bit. Kelly

22 years, 2 months

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LH0080

by lyosnorezel＠yahoo.com

Could someone please give me some info on the LH0080? From what I've heard it is Sharp's Z80 CPU clone... but I need datasheets... pinouts... etc. Any help would be much appreiciated. Thanks. Lyos Gemini Norezel --------------------------------- Do you Yahoo!? Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes

22 years, 2 months

2
1
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PDP-11 disassembler

by pete＠dunnington.u-net.com

On Jan 16, 20:26, Jay West wrote: > Someone contacted me about having a PDP-11 disassembler, with source code, > under the GPL license. Would folks here be interested in that? Yes, 'cuz the one I wrote years ago in BASIC, before I understood how to do such things, is slow and crap :-) -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

1
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Emulation (Was: Emulators of Classic Computers)

by pete＠dunnington.u-net.com

On Jan 15, 17:49, Gordon JC Pearce wrote: > On Thu, 2004-01-15 at 16:53, Brad Parker wrote: > > > > Gordon JC Pearce wrote: > > > > > >There are PDP-8 emulators out there already, better ones than this too. > > >But I wanted one that was *mine*! (Shh, little secret, keep it under > > >your hat but it's an experiment, maybe a precursor to building an 8 in > > >TTL). > > > > I'm probably high, but I'm still dreamy from the work the XKL guys did :-) > > > > If you want to do it in an FPGA (well, CPLD), let me know - I'll help! > > I really want to do it in discrete logic. Call me crazy, enough people > do as it is... Sounds good to me... > Actually, I'd probably do it in 40xx CMOS, simply because I don't want > to have a +5V supply the size of a MIG welder lying around. :-) > What indeed... Now, Maplin do some nice 13mm LEDs, how big do you think > we could make a panel? How about the 3" LED clusters they use as tail > lights on buses round here? Make a PDP-8 6' across, like the giant > MS-20 that Korg made for demo tours in the 1970s? But then you'll need the MIG welder again :-) -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

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pdp11 disassembler, with source, GPL license

by jwest＠classiccmp.org

http://www.classiccmp.org/PDP-11/MISC/

22 years, 2 months

1
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780 troubleshooting doc

by aek＠spies.com

thought you might find this interesting if you haven't seen it: www.bitsavers.org/pdf/dec/vax/EY-2217E-SG-0001_780tshoot.pdf

22 years, 2 months

1
0
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PDP-11 disassembler

by jwest＠classiccmp.org

Someone contacted me about having a PDP-11 disassembler, with source code, under the GPL license. Would folks here be interested in that? Jay West

22 years, 2 months

3
2
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Picture of my machine

by dwight.elvey＠amd.com

Hi For those that get IEEE's Computer magazine, there is a nice picture of my SIM-4 on page 17 of the January '04 issue. If you should ever see one of these laying around, make sure you get your hands on it. I only know of one other complete unit like this one and a couple of the lone SIM-4 boards. I'd be interested in know if anyone else on the list has one of these. I've written software to talk to the system as well as I have written an assembler, disassembler and simulator for this 4004 system. Dwight

22 years, 2 months

2
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Picture of my machine

by dwight.elvey＠amd.com

Hi Joe Blinkenlights has a slightly less clear picture at: http://www.blinkenlights.com/pc.shtml Its about half way down. I'd think that IEEE may have a site but I've not looked. Dwight >From: "Joe R." <rigdonj(a)cfl.rr.com> > >At 10:36 AM 1/16/04 -0800, you wrote: >>Hi >> For those that get IEEE's Computer magazine, there >>is a nice picture of my SIM-4 on page 17 of the >>January '04 issue. > > Do you have a link where us non-subscribers can see it? > > Joe > >> If you should ever see one of these laying around, >>make sure you get your hands on it. I only know of >>one other complete unit like this one and a couple >>of the lone SIM-4 boards. >> I'd be interested in know if anyone else on the list >>has one of these. I've written software to talk to >>the system as well as I have written an assembler, >>disassembler and simulator for this 4004 system. >>Dwight >> >> >> >

22 years, 2 months

2
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why?

by aek＠spies.com

> Why should I spend $333 for one 9-track tape? The bidder has more money than brains? I hope he has some dedicated system that requires this stripped-down version of RSX-11M 'cause it ain't "collectable"

22 years, 2 months

2
1
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Old stuff and schematics in Kansas City

by mmcfadden＠cmh.edu

My old image processing lab at the university is being renovated and all of the equipment has to go. I have come across a schematic for a Kennedy 9400 tape formatter and some other devices. We used to write our own interfaces to a homegrown computer system. I may have some Fujitsu Eagle manuals. There are also many electronics catalogs from the the late 1980's, the electronics shop has to go. I'm hauling all I can get. I don't want the manuals and catalogs, but I'm not throwing them away. 2 Quadra 950's with array processors from 1993 with dual 24" image systems monitors. Graphon 225 terminal Sun IPC HDS X-terminals I'm tracking an alphaserver 2100 I'll make up a list, most of the stuff can be had for shipping costs. I want the alphaserver and manuals. Mike McFadden

22 years, 2 months

3
2
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Old stuff and schematics in Kansas City

by teoz＠neo.rr.com

----- Original Message ----- From: <McFadden>; "Mike" <mmcfadden(a)cmh.edu> To: <cctalk(a)classiccmcp.org> Sent: Friday, January 16, 2004 4:12 PM Subject: Old stuff and schematics in Kansas City > My old image processing lab at the university is being renovated and all of the equipment has to go. I have come across a schematic for a Kennedy 9400 tape formatter and some other devices. We used to write our own interfaces to a homegrown computer system. I may have some Fujitsu Eagle manuals. There are also many electronics catalogs from the the late 1980's, the electronics shop has to go. I'm hauling all I can get. I don't want the manuals and catalogs, but I'm not throwing them away. > > 2 Quadra 950's with array processors from 1993 with dual 24" image systems monitors. > > Graphon 225 terminal > Sun IPC > HDS X-terminals > I'm tracking an alphaserver 2100 > > > I'll make up a list, most of the stuff can be had for shipping costs. I want the alphaserver and manuals. > > Mike McFadden > What array processors are on the Quadras? Would be interested in those and anything else Q950 related

22 years, 2 months

1
0
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Odd PDP-11 tape related question

by bqt＠update.uu.se

On Wed, 14 Jan 2004 "Fred N. van Kempen" <waltje(a)pdp11.nl> wrote: > On Tue, 13 Jan 2004, Zane H. Healy wrote: > > > Interesting.... BTW, the DDS1 drive I'm using is a DEC TLZ06. Any idea if > Hmm, wasnt the TLZ06 a DDS2 drive? At any rate, yeah, this drive > might very well have this "problem" .. I had it with many DDS > drives, might even have been a TLZ in that stack... I *do* know > I tested it with a TLZ04. > > > this might also be a problem with an Exabyte 8500 tape drive? It would be > Cant remember... only had a 8200 at the time, and cant remember the > results of that.. I just decided to test a TLZ06 on my system, and it don't want to work. I normally play with an Exabyte 8200, and that works just fine. (This on a 11/84 with a CMD controller) So it might be as some suggested, that the DDS drives aren't too happy. I tried with a DDS2 tape in it, if that matters. The system sees the drive, and I can mount and dismount tapes, and even eject them. Reading or writing gives errors, though. I have not verified the drive on any other system either, so there are several possible problems here, but I thought I'd report what I can anyhow. Johnny Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)update.uu.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

22 years, 2 months

11
17
0 0

oddball televideo problem

by pete＠dunnington.u-net.com

On Jan 15, 23:08, Tony Duell wrote: > I beleive you are correct. One state is a -ve voltage between -3V and > -25V, the other is a +ve voltage between +3V and +25V. Anything between > -3V and +3V is undefined. My data sheets agree with that. > [Actually, I'll admit to having fed the output of an HCT04 (or similar) > into a serial port once. My excuse it that it waas a one-off test board, > and I had the schematics of the serial card it was driving (which showed > a 1489 reciever). I once used a dual opamp in an 8-pin DIL to do that. One half was the receiver, one the driver. I knew that what I was driving wouldn't overload the opamp's output, and it kept the chip count down (it was a small microcomputer based on a Z8, on a board about 3" square). > No way would I do this in a device to be used by others!) Ditto! -- Pete Peter Turnbull Network Manager University of York

22 years, 2 months

2
1
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DEC MINC-11 question

by Steven_R_Hutchins＠Raytheon.com

Classic comp lister's, I have MINC-11 ( seems to be a MINC-23 in a MINC-11 box) with the following: It only has these cards inside: M8186 CPU M7506 MEM M8029 RX02 DISK CONT M7954 IEEE CONT M8043 4510 MUX Card M8012 Boot Card This was a working unit until recently when I consistantly get "checksum error KVR 00" on bootup. I suspect the M8012 card...perhaps Eprom bad? I have no Docs. I have been to http://www.binarydinosaurs.co.uk/Museum/Digital/minc/minc.php and talked with Adrian Graham and he sent me to this list. any help appreciated greatly. S.R. "Hutch" Hutchins Engineering Department Raytheon Technical Services Company, LLC Norfolk, VA 23513 757-852-2134 FAX 757-852-2109 RayCommNet 7-493-2134

22 years, 2 months

2
1
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RA81 spin-up probs

by julesrichardsonuk＠yahoo.co.uk

Just been playing with some real DEC hardware today and trying to coax some life out of a pair of RA81 drives. Both drives are exhibiting the same fault - as soon as the RUN button is hit they seem to try and spin up for a second or two before the spindle motor disengages and the red FAULT light comes on. I'm not back at the site where these are until next weekend now, but is this a common fault that might mean there are a few obvious things I should check first? One drive was supposedly working when decomissioned at the site where it ran; the other one was definitely running on the site I was at today the last time it was powered up a short while ago. Curious that both of them are showing the same fault. I only had the RA81 user manual with me today - should be able to get hold of the service manual for next weekend. However, I hooked a terminal up to the diagnostic port on both drives. Issuing a "RUN DIAG" command with the HDA offline shows all tests passed. Pressing the RUN button as described in the manual gives the "Front panel function in progress" message as expected, the drive tries to spin up and stops, the fault light comes on, and I get dumped back to the RA81> prompt on the terminal - it doesn't even try to run any of the diags that the manual suggests it should do at this point. Looks like something's overloading when the drive tries to spin up and immediately shutting things down. The HDA is free to turn, belt tension seems good, and the motor manages a few revolutions before it stops. Unforunately I can't for the life of me remember what other lights came on at the front of the drive along with the FAULT light :-( cheers Jules

22 years, 2 months

4
8
0 0

Microvax III Hardware

by jeff.kaneko＠juno.com

Pat: It's been spoken for. Thank you for your interest. Jeff On Fri, 16 Jan 2004 14:38:01 -0500 Patrick Finnegan <pat(a)computer-refuge.org> writes: > Hey, did you get the email I sent you Wednesday about this stuff? > And > did I "win"? I need to know so I can deside whether or not to bid > on > stuff that closes on ebay tonight... > > Thanks, > > Pat > > On Wednesday 14 January 2004 23:34, jeff.kaneko(a)juno.com wrote: > > The following items are available for shipping plus 15%. > > > > With thanks to Megan's field guide: > > > > 2 M7620 KA650-BA Q MicroVAX III CPU (workstation > > license), 90nS. > > > > 1 M7651-PA DRV1W-S Q General-Purpose DMA Interface > > (for BA200 series) > > > > 1 M7164 KDA50-Q Q Qbus SDI disk adapter, Q22 (1 of > 2) > > (QDA SDI) > > > > 1 M7165 KDA50-Q Q Qbus SDI disk adapter, Q22 (2 of > 2) > > (QDA SDI) > > > > 2 M7168 VCB02, QDSS Q 4-plane colour bitmap module > > > > 1 M7169 VCB02, QDSS Q 4-plane video controller module > > > > 4 M7621-AV MS650-AA Q 8-Mbyte RAM for KA650 (MicroVAX > III) > > > > 1 M7622-BP MS650-BA Q 16-Mbyte RAM for KA650 (MicroVAX > III) > > > > 1 M7769 KFQSA-S Q Storage Adapter (DSSI Disk > Interface), > > BA200 series > > > > 1 M8634-PA IEQ11-S Q Communications Controller > (IEC/IEEE) > > (for BA200 series) > > > > 1 M3127-PA DESQA-SA/SF Q Ethernet/thinwire adapter > > (DELQA+DESTA) with S-box handle > > > > 1 M8087-PA Q Scanner/printer to Q-bus DMA > interface > > > > Some cables are available, ask. If I don't get any takers, the > whole > > lot goes > > into the melter. I just don't have the place to keep them > anymore. . > > . . > > > > > > Jeff > > > > ________________________________________________________________ > > The best thing to hit the internet in years - Juno SpeedBand! > > Surf the web up to FIVE TIMES FASTER! > > Only $14.95/ month - visit www.juno.com to sign up today! > > -- > Purdue University ITAP/RCS > Information Technology at Purdue > Research Computing and Storage > http://www.itap.purdue.edu/rcs/ > > ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!

22 years, 2 months

1
0
0 0

Citizen 120D+ - service manual?

by philpem＠dsl.pipex.com

Hi, Does anyone have a service manual for the Citizen 120D+ dot-matrix printer? I'm trying to repair mine - the interface cartridge connector is totally shot and I can't ID it. It looks like a DIN41612, but it's two-row (both rows populated) with 30 pins. The printer's connector bears the text "030P2B-L14N 92-4-03". Thanks. -- Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB, philpem(a)dsl.pipex.com | ViewFinder, 10BaseT Ethernet, 2-slice, http://www.philpem.dsl.pipex.com/ | 48xCD, ARCINv6c IDE, SCSI

22 years, 2 months

1
0
0 0

IDE-Qbus/Unibus was:Re: Old IDE hard drives

by aek＠spies.com

It isn't a parallel port, it is a subset of the PC/AT bus, with x86 timings and a big bag-o-hacks to get DMA transfers to run a LOT faster than it was ever meant to run. Friends of mine and I have build interfaces off of an IDE connector that talk directly to 80xx peripheral chips because of the similarity in timing. The bus mastering side of IDE (esp if you're using a PCI interface) is the weird part.

22 years, 2 months

1
0
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[ebay] DEC Infoserver 150 with disk and CDROM

by lists＠microvax.org

I just spotted this in the US - it's going for a single dollar at the moment. I'm not affiliated (and I wish I was because i'd have it in an instant!) http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=3071461252&category=11… alex/melt

22 years, 2 months

1
0
0 0

Battery connections on laptop.

by r.mueller＠fz-juelich.de

I just bought a somewhat older laptop, though I hope you will all forgive me if it is slightly younger than the borderline for the interests of this group (I am not sure on which side of the line it lies.) It is a Toshiba 4010CDT, which uses a Li-Ion battery, the subject of this message. I am amazed at the number of contacts between the battery and the computer (about 10) and wish to know their function. On the Internet I find nothing. On account of the short life-time of such batteries I want to install NiMH. I accept that I would have to use a separate, external charger, even removing the reserve battery fro the charging process, as the price of being able to travel with a back-up battery which would not die after two years of having it around. The problem is all those connections; I have no idea what they do and only a couple of them are needed for transfer of power to the computer. At least part of the rest must be communicating data about the state of the battery, either for the sake of charging or for warning of the soon-to-come shut-down for lack of enough power to continue. I would have to lie to the computer in such a way it thinks it is monitoring a Li-Ion battery, but to do it I need to know what the lies must say. Does anybody have a clue what the functions of these connections are? Keeping my fingers crossed, Bob

22 years, 2 months

2
1
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Great BYTE magazine cover prints on eBay . . .

by MTPro＠aol.com

Robert Tinney, the excellent artist who painted numerous BYTE magazine covers is selling much of his work on eBay for super deals. See: http://cgi6.ebay.com/ws/eBayISAPI.dll?ViewSellersOtherItems&userid=crawford… include=0&since=-1&sort=3&rows=50 Just thought I'd pass that along, best, David Greelish, classiccomputing.com

22 years, 2 months

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MicroVAX I update the 3rd, now being serialised in a local newspaper near you :)

by witchy＠binarydinosaurs.co.uk

More googling shows that the MV I and the MicroPDP can be very easily interchanged since they share memory modules etc, so I dug out my 11/73 and proceeded to spend a while tinkering with RT-11 again for the first time in nearly 10 years - there were files on there I'd changed in april '94 :) Looks like the RD54 (not the one I used as a load on the VAX) is possibly fading 'cos I got some overlay errors, but anyway.... The PDP still runs fine with the M7551 memory from the VAX so I know it's not a board issue I have with the VAX. Next thing to do I suppose is 'borrow' the PDP's cab to test the complete set of VAX boards, once I verify the PSUs are the same. That's a job that needs a lot of space which I don't have so I'll have to invade the kitchen next week when everyone else is out the house and hope I don't run into problems :) cheers -- Adrian/Witchy www.binarydinosaurs.co.uk - possibly the UK's biggest online computer museum www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o(

22 years, 2 months

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Check out TechTV | Homebrew Computer Club Reunion on The Screensavers

by Ladyelec＠aol.com

<A HREF="http://www.techtv.com/screensavers/shownotes/story/0,24330,3560406,00.html">Click here: TechTV | Homebrew Computer Club, </A> http://www.techtv.com/screensavers/shownotes/story/0,24330,3560406,00.html Homebrew Computer Club Reunion on The Screensavers The seeds of Silicon Valley's booming tech industry may well have been planted by the now-legendary Homebrew Computer Club. Friday the 16th. , we reunite members of the Club for a look at the past, present, and future of tech. Isa

22 years, 2 months

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Microvax III Hardware

by jeff.kaneko＠juno.com

The following items are available for shipping plus 15%. With thanks to Megan's field guide: 2 M7620 KA650-BA Q MicroVAX III CPU (workstation license), 90nS. 1 M7651-PA DRV1W-S Q General-Purpose DMA Interface (for BA200 series) 1 M7164 KDA50-Q Q Qbus SDI disk adapter, Q22 (1 of 2) (QDA SDI) 1 M7165 KDA50-Q Q Qbus SDI disk adapter, Q22 (2 of 2) (QDA SDI) 2 M7168 VCB02, QDSS Q 4-plane colour bitmap module 1 M7169 VCB02, QDSS Q 4-plane video controller module 4 M7621-AV MS650-AA Q 8-Mbyte RAM for KA650 (MicroVAX III) 1 M7622-BP MS650-BA Q 16-Mbyte RAM for KA650 (MicroVAX III) 1 M7769 KFQSA-S Q Storage Adapter (DSSI Disk Interface), BA200 series 1 M8634-PA IEQ11-S Q Communications Controller (IEC/IEEE) (for BA200 series) 1 M3127-PA DESQA-SA/SF Q Ethernet/thinwire adapter (DELQA+DESTA) with S-box handle 1 M8087-PA Q Scanner/printer to Q-bus DMA interface Some cables are available, ask. If I don't get any takers, the whole lot goes into the melter. I just don't have the place to keep them anymore. . . . Jeff ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today!

22 years, 2 months

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.PIC image file format

by d_cymbal＠hotmail.com

Hi, Does anyone have a description of the .PIC file format for images found on some CP/M machines? I assume the ones I am dealing with a DR Logo image files, but am not entirely sure. They are a binary format that apparently has the filename at the 0 offset. Any help appreciated. Thanks. dc

22 years, 2 months

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Whitechapel MG-1 : dead power supply ?

by mail＠softsmiths.co.uk

T I have heard there is a trick with mg-1 power supplies not working ... I cannot remember where i have seen it. If you have not heard of this trick let me know and i'll try and remember where i have seen it on the web rgds - Derek Mott

22 years, 2 months

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Battery connections on laptop.

by rigdonj＠cfl.rr.com

Some battery packs use separate leads for charging and to supply power. Also most packs (other than NiCad) have a thermistor to control the charge rate. Many also have a thermal circuit breaker. All of these require additional contacts. The Li-Ions in particular often have the circuit breaker since they are prone to exploding violently if they are improperly charged or used. In addition, some of the contacts may be paralleled with other contacts to increase the current carrying capability. You'll have to break open the pack to see exactly what they're all used for. Li-Ion, Ni-MH and most of the newer batteries have very exactly charging and use requirements. I STRONGLY recommend not switching battery types. Save yourself a lot of aggravation and replace the cells with the same type of cells. Spend your money on buying GOOD cells and not the Mexican or Chinesse made junk. I've had extremely good luck with the JAPANESE (NOT Mexican!!) made Sanyo NiCads but I can't say about the other type cells. Joe At 03:10 PM 1/15/04 +0100, you wrote: >I just bought a somewhat older laptop, though I hope you will all forgive >me if it is slightly younger than the borderline for the interests of this >group (I am not sure on which side of the line it lies.) > >It is a Toshiba 4010CDT, which uses a Li-Ion battery, the subject of this >message. I am amazed at the number of contacts between the battery and >the computer (about 10) and wish to know their function. On the Internet >I find nothing. On account of the short life-time of such batteries I >want to install NiMH. I accept that I would have to use a separate, >external charger, even removing the reserve battery fro the charging >process, as the price of being able to travel with a back-up battery which >would not die after two years of having it around. > >The problem is all those connections; I have no idea what they do and only >a couple of them are needed for transfer of power to the computer. At >least part of the rest must be communicating data about the state of the >battery, either for the sake of charging or for warning of the soon-to-come >shut-down for lack of enough power to continue. I would have to lie to >the computer in such a way it thinks it is monitoring a Li-Ion battery, but >to do it I need to know what the lies must say. Does anybody have a clue >what the functions of these connections are? > >Keeping my fingers crossed, > >Bob > >

22 years, 2 months

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"Scrap" PDP-11 boards on Ebay

by aek＠spies.com

Looks like lots of Q-Bus PDP-11 stuff, including a CPU and backplane. It's up to a measly $10.50 with two days to go. Item # 2588111758 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2588111758&category=1504 -- sigh... looks like the guy ripped apart a Unibus PDP11 system. There are boards there for a Kennedy tape drive, SMD drives, and a Emulex SMD controller.

22 years, 2 months

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DEC MINC-11 question

by TRASH3＠splab.cas.neu.edu

If it has been sitting for a while, reseat all the chips on each board, and then reseat all the boards. You can start by minimizing the number of boards in the system, try just the boot, memory and cpu boards, and see if the error goes away or changes. Chips do go bad, but many a time it has been oxidation on the pins of the DIP that go into the socket that makes a mess. Joe Heck

22 years, 2 months

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Battery connections on laptop.

by john_boffemmyer_iv＠boff-net.dhs.org

Yes, I know some of the functions (boss had a similar Toshiba). Apparently, it not only gives battery life/charge notification and monitoring, it also has battery temperature (for what reasons, I do not know since it was grossly inaccurate most of the time). There even was a diagnostic for Windows and DOS(boot floppy) that could be run and interface with the battery to find possible run time/length, stress test, possible recharge times, etc. I only know of the utility from a Toshiba tech mentioning it when my boss had a problem. I don't even know if that is actually available to the public. It was sort of like a rudementary serial interface to a battery. -John Boffemmyer IV At 09:10 AM 1/15/2004, you wrote: >I just bought a somewhat older laptop, though I hope you will all forgive >me if it is slightly younger than the borderline for the interests of this >group (I am not sure on which side of the line it lies.) > >It is a Toshiba 4010CDT, which uses a Li-Ion battery, the subject of this >message. I am amazed at the number of contacts between the battery and >the computer (about 10) and wish to know their function. On the Internet >I find nothing. On account of the short life-time of such batteries I >want to install NiMH. I accept that I would have to use a separate, >external charger, even removing the reserve battery fro the charging >process, as the price of being able to travel with a back-up battery which >would not die after two years of having it around. > >The problem is all those connections; I have no idea what they do and >only a couple of them are needed for transfer of power to the >computer. At least part of the rest must be communicating data about the >state of the battery, either for the sake of charging or for warning of >the soon-to-come shut-down for lack of enough power to continue. I would >have to lie to the computer in such a way it thinks it is monitoring a >Li-Ion battery, but to do it I need to know what the lies must say. Does >anybody have a clue what the functions of these connections are? > >Keeping my fingers crossed, > >Bob ---------------------------------------- Founder, Lead Writer, Tech Analyst and Web Designer Boff-Net Technologies http://boff-net.dhs.org/index.html ---------------------------------------

22 years, 2 months

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AMC Multibus cards?

by aek＠spies.com

Here's the list: Monoboard Computer AMC 95/4005 2 ea. Dynamic RAM Board 0095-0017 also marked 95/1032 in ink. 32K Ram 3310 Communications Controller marked 1119 in ink. Also marked 950134 95/6110 FD Control Board. Marked 994260-901 in ink -- www.bitsavers.org/pdf/amd/multibus/

22 years, 3 months

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Emulator search

by pete＠dunnington.u-net.com

On Jan 16, 10:00, Rob O'Donnell wrote: > > Somewhere out there in the world there is also at least one econet <--> > X.400 box, (coz I saw it on eBay) which was based on a BBC B with some > customer software/hardware - would be nice to get hold of the > specs/software on that too - could eventually link my emulated BBCs to the > Internet properly.. X.400 is a messaging (email etc) protocol; I think you've seen an Acorn X.25 Gateway. They weren't one of Acorn's success stories :-) I recall the Psychology Department at Edinburgh University had one, they intended it to link their Econet lab to the ERCC network and thence to JANET. It's a box with a BBC motherboard and some extra gubbins in it. You'd be better to run something like !Gateway on an Archimedes or RISC PC with an Econet and an Ethernet interface. -- Pete Peter Turnbull Network Manager University of York

22 years, 3 months

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Appearance on HGTV tonight (Sunday)

by vcf＠siconic.com

Tonight on HGTV I appear on the show "Hey, Remember!" where I'll be talking about old computers. It appears locally at different times so check your local listings. http://www.hgtv.com/hgtv/shows_hhey/episode/0,1806,HGTV_11739_29444,00.html -- 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 ]

22 years, 3 months

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