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

by mhstein＠usa.net

From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> >No PROBLEM, just impossible. Ah well, problem solved then. >> I think with a little software I could transfer it to one of my PETs via the cassette port, and from there it would be trivial to get to a PC, but I'm hoping there's an easier way. >Really? The PC can't do PET disks, either. But you MIGHT be able to interface one of the aftermarket IEEE488 drives to the Pet with some trivial hardware, and then interface it to the PC, and just write a file system for it. Well, no, I wasn't thinking disk-to-disk: >But, if you have a serial port on the Pet, then it'll be easy. I do; as well as Centronics parallel & a P-S converter. As a matter of fact, I archive PC BIOS settings this way when setting up a new system: Plug a P-S converter into the printer port, connect the serial to a laptop, press PrintScreen on each BIOS page and suck it up on the laptop; format, print & save. And speaking of kludges, how's this: I have a client who periodically needs to get data off the network to a standalone separate computer; trouble is, the data is only available on an inquiry screen and corporate guidelines do not permit any foreign S/W on the NT client nor any attachments to the network. So what I did was connect serial-out of the standalone to a serial to PC keyboard converter, serial-in to the client serial-out, and direct client printer O/P to the serial port. The standalone goes through its list of accounts, sends out each account number and the code to bring up the inquiry screen on the serial port (which the client sees as keyboard input), waits a second for the screen to come up, sends a code to print the screen and sucks it back in on the serial port for de-formatting and storing. Slow and ugly, but kind of elegant in its kludginess... >Or maybe you could program the cassette port of a 5150? That did occur to me 'cause I just happen to have one, but I think Altzheimer's would have taken over by the time THAT project was finished... >> I have a CompatiCard I and Uniform, and I still have... >Those will be nice for doing MFM diskettes. No help at all for GCR (Apple and Commodore). That's kind of what I gathered from the previous thread; just thought I'd double check. >> the T300 that no one wanted which can do 96TPI 640K >If you DO figure out a use for it, let me know. Somewhere around here are a few of them. I patched PC-Write to run on it, but never came up with anything else to do with it. Eventually I gave one to Toshiba's MRI division, because they couldn't get one throught their main corporation. Well, it runs dBase II and 123 quite nicely, and I used something called SED for text editing, but even with those excellent expensive 640K 96TPI diskettes one does get used to hard disks. Mind you with all the CD-ROM swapping these days it sometimes seems that we've gone back to the dual-floppy days; thank goodness there is software to put those CD-ROMs on HD. Hate to toss it, seems like the 96TPI drives might be useful some day, it certainly is well built and I happen to have lots of docs, but alas... You haven't run across the CP/M86 for it by any chance? - -- Grumpy Ol' Fred cisin(a)xenosoft.com

24 years, 5 months

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Anyone got a spare DSSI terminator?

by classiccmp＠knm.yi.org

Hi, I post about this occasionally, get a response or two, then hear nothing again :&) So here goes again.. I've got a MV3300 here in my kitchen/dining room, and it's missing a DSSI terminator... so if there's anyone out there with a spare.... :&) (Sad state of afairs - the guy I bought this MV3300 from scrapped the second drive enclosure and obviously never took the terminator :&/ So not only do I have a VMS install that expects 3 drives when there are only two there, but I'm also short of a terminator) -- Matt --- Web Page: http://knm.org.uk/ http://pkl.net/~matt/

24 years, 5 months

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Apple disk -> MSDOS

by mhstein＠usa.net

Well, yes, that is kinda obvious, but I'm not really inclined to upgrade before disposal. -------------------Original Message------------------- From: Lawrence LeMay <lemay(a)cs.umn.edu> <snip> > I'm about to get rid of my last Apple II clone <snip> Buy a super serial card on ebay and use it to transfer the files. - -Lawrence LeMay

24 years, 5 months

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OT: DELL SUCKS! Re: PC Gamer, best 50 classic games issue?

by mythtech＠Mac.com

>no, I mean when calling in for support. I did phone support for IBM and >whenever a user called in after the first time, we had user info and call >history along with the type of computer all up on the screen. Ahh... ok... humm, now that I think of it, when I called Apple for support a few times, they used Caller ID to pull up my record and knew who I was, and all occasions I interacted with phone support, all before answering the phone. Yeah... for phone support, it is inexcusable for them not to be able to at least look up your info after asking something simple like name and zip code -chris <http://www.mythtech.net>

24 years, 5 months

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OT: DELL SUCKS! Re: PC Gamer, best 50 classic games issue?

by SUPRDAVE＠aol.com

In a message dated 1/9/2002 7:06:55 PM Eastern Standard Time, mythtech(a)Mac.com writes: << > I hate always having to >give my name, company and email address every time. they should have that >info already. No... they shouldn't even ASK for it... why does it matter who you are if you are browsing their support pages. -chris <http://www.mythtech.net> >> no, I mean when calling in for support. I did phone support for IBM and whenever a user called in after the first time, we had user info and call history along with the type of computer all up on the screen. -- Antique Computer Virtual Museum www.nothingtodo.org

24 years, 5 months

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Bought an IBM 5362 -- so now what do I do with this thing?

by out2sea00＠yahoo.com

Folks -- Please pardon the newbie.... I'm trying to track down resources for IBM System/36 and the model 5362. I just Ebay'd one (momentary insanity) and I need to start putting together all the apocrypha to go with it. All I'm getting is the system unit. I need to try and track down software, manuals and a display station first. Any pointers or assistance would be just lovely, and greatly appreciated. Thanks, Colin Eby Senior Consultant CSC Consulting end __________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://promo.yahoo.com/videomail/

24 years, 5 months

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Some pointers needed on a 11/70

by pete＠dunnington.u-net.com

On Jan 9, 22:42, The Wanderer wrote: > Odd enough, when I changed the SSR, the memory starts now at 1400000 and > runs > through 1477777, very odd. That suggests some unwanted interaction between the SSR and the memory bus. Very odd. > Tomorrow I'll step through all the entries listed in your last mail, it > may very > well be the case that the address and/or data buffer of the memory box > are faulty, > in which case I have to get a new one. Well, I wish you good luck with it. Keep us posted on progress... -- Pete Peter Turnbull Network Manager University of York

24 years, 5 months

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OT: DELL SUCKS! Re: PC Gamer, best 50 classic games issue?

by mythtech＠Mac.com

>While I generally refrain from joining OT posts, this one I have to. I >bought an Inspiron from Dell a few >months ago. The invoice added $1000 to the price! > >I called them, and after being on hold for an hour, they agreed it was a >mistake, and said they would credit >my account. > >Two months later, no credit! I called again, and after an hour on hold, >was told I was not credited, because >I had not proved to them what their price was!!!! They said they could >not verify the price, unless I faxed >them the "Quote". The price was posted on their website!!!! There was no >written quote!!!! > >I said I would fax them a picture of their web page (which I had made). >The fax was a toll call!!! > >I am still waiting for the refund. > >I categorize them as crooks. I am assuming you called your credit card company as soon as you saw this charge and had it marked as under dispute? -chris <http://www.mythtech.net>

24 years, 5 months

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OT: DELL SUCKS! Re: PC Gamer, best 50 classic games issue?

by mythtech＠Mac.com

> I hate always having to >give my name, company and email address every time. they should have that >info already. No... they shouldn't even ASK for it... why does it matter who you are if you are browsing their support pages. -chris <http://www.mythtech.net>

24 years, 5 months

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Tek scope service manuals

by djg＠drs-esg.com

>Does anyone know of a source for Tek scope service manuals? > >Of specific interest are: 2246A and 2430A > I haven't found much of scanned manuals online. For older manuals at good price I have used Dean Kidd 27270 SW Ladd Hill Rd Sherwood, OR 97140 tel 503-625-7363 dektyr(a)teleport.com Also see list http://www.3rdtech.com/nick/boat/manuals.htm (Manual merchants/manuals plus I think have online manual search, or web search for model # and manual)

24 years, 5 months

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PLD help

by swtpc6800＠attbi.com

I use the Xilinx XC9500 family of CPLDs. They are 5 volt and come in PLCC packages. (You can socket these and even get wire wrap sockets.) The design software is free and the programming is simple. The official download cable is $95 but I have built several for under $15. (Xilinx publishes the schematic.) You can find links to the Xilinx web site plus a design example (floppy disk controller) on this web page. http://home.attbi.com/~swtpc6800/ ------------------------------- Michael Holley swtpc6800(a)attbi.com www.swtpc.com ------------------------------- > Hello, all: > > Well, I'm picking up the 6502 SBC project that I started last year. > To reduce chip count I'd like to use Atmel PLDs for address decoding. I > downloaded some app notes from Atmel's web site but are there any practical > tips for using/programming these devices for use in a hobbyist project? > > Rich > > ========================== > Richard A. Cini, Jr. > Congress Financial Corporation > 1133 Avenue of the Americas > 30th Floor > New York, NY 10036 > (212) 545-4402 > (212) 840-6259 (facsimile) >

24 years, 5 months

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OT: DELL SUCKS! Re: PC Gamer, best 50 classic games issue?

by SUPRDAVE＠aol.com

In a message dated 1/9/2002 3:23:55 PM Eastern Standard Time, dittman(a)dittman.net writes: << > > > > Huh?! That was the last piece of business I'll EVER do with Dell. > > > > > > Dell service sucks donkey cock. Computers: good. Service: very bad. > > > > > > F Dell! > > > > I have a Dell Inspiron 8000 that works very well. I've had > > excellent results when I've had to call in for service. > > It would seem the majority of people I confer with have nothing but pain > and anguish leading to murderous thoughts when dealing with Dell. > > F Dell and it's namesake! I wonder why the disparity exists? -- >> I've never a problem when I've had to call on a Poweredge series. Not sure how the consumer side of support is. One time I did call about a failed hard drive that was ticking like a clock. I had to convince the guy to just send me a replacement withouth having to go through his script. The premiersupport.dell.com site is pretty good although I hate always having to give my name, company and email address every time. they should have that info already. -- Antique Computer Virtual Museum www.nothingtodo.org

24 years, 5 months

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Tek scope service manuals

by tuban＠cisco.com

Does anyone know of a source for Tek scope service manuals? Of specific interest are: 2246A and 2430A --tnx --tom

24 years, 5 months

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Continuing PDP11 saga

by pete＠dunnington.u-net.com

On Jan 9, 9:12, Tom Leffingwell wrote: > > I tried taking an M8027 and setting its address to 170400, to make it look > like the ADV11-C. However, when typing that address before and after I > installed the board, at the @ prompt, it returned 177777. Whatever the address you set, it wasn't 170400... > Also, the > DRV11, at 167770, does the same thing. The DRV11-B gives 000000 (at > 772410), although at the CSR (772414) it gives 006800. Well, if you're using 18-bit addressing -- which you must be if the DRV11-B responds to 772410 rather than 17772410 -- then all the I/O addresses begin 77.... rather than 17.... 17.... in ODT would address the memory. I/O addresses are often given as 17.... for older QBus devices, because the original LSI/11 used 16-bit addressing. You have to mentally add two or six more '1's on the front for an 11/23 or later processor. > My printer card that I tried to use as a fake ADV11 has jumpers on pin 12 > and pin 8, with the rest removed. Is this correct for setting it to > 170400? No, 'fraid not. This is an LPV11, M8027? The jumpers that go between the two pins in each of the pairs labelled A3 to A12 set the address, a jumper inserted makes it a '0' and "no jumper" sets a '1' in that bit position. You can't control address bits 13 or higher, nor can you control A0...A2. A0 doesn't matter, A1 distinguishs the CSR address from the buffer address (one word higher), and A2 is fixed at binary '1' -- so this card can never be set to anything that doesn't end in octal '4'. If all the jumpers are out except A8 and A12, that would set binary 1110111011111100 as the base address, which is octal 167374. Not quite what you wanted :-) The closest you can get is binary 1111000100000100 (the leftmost bits are already set, A12 should be out, A11...A9 in, A8 out, A7..A3 in, A2 is set to a '1' and can't be changed, and the other two are "don't care") or octal 170404. > I noticed on the DRV11 card that it says jumper in = logic 0. That one > has one jumper on pin 12, which I assume gives it the proper address of > 167770. This one appears unmodified from the factory. That's right. The jumper sets address bit 12 to 0, so you get binary 1110111111111000. > Are my jumpers on the printer card the opposite of what they should > be? Is 177777 what is returned for a missing board? If I have the > jumpers reversed on the printer card, that would explain that situation, > but it doesn't explain the DRV11, unless its bad. Yes, you have the jumper sense wrong on the printer card. What you get back from a non-existent address depends on the bus termination, but all-ones is plausible. Maybe you have a bad DRV11, or maybe you've overlooked a jumper. At least some of the CSR bits should read as zeros. -- Pete Peter Turnbull Network Manager University of York

24 years, 5 months

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Let me try this again

by mranalog＠attbi.com

Hi All, Last week I was looking for someone to host some Data I/O manuals. Sorry about that, I had no idea that they were already on the web. I thought they were created by the person that gave them to me. So now I have some scanned pages that someone might want to host. I believe that these are pretty rare and kind of historic. And again I want to get them out there to be a part of the Great Record and not be misplaced here in the Great Pile. And as before, let me know if these are already available somewhere else. Now the story. Well about 8 years ago I was in my favorite Bay Area electronic surplus store - Mike Quinn Electronics. At the time, they were still in the Quonset hut at Oakland Airport. I bought a pile of books and manuals. And when I got home I discovered among the books 3 handwritten and xeroxed, double-sided sheets stapled together entitled "MINI-MINI COMPUTER". The six pages described the design of a computer built using four core planes from an IBM 1401. At the time it was written, these core planes were available from Mike Quinn's for less than $9 each. The pages had no date on them, just the author's name and address. In 1999 I decided to track down this Hal A. Chamberlin Jr. Hal (I learned) is the author of the well regarded book "Musical Applications of Microprocessors". And I DON'T KNOW, but maybe the same Hal that started "The Computer Hobbyist". I contacted Hal in 1999 (at the time he was in Korea) and this is some of what he said: ---------- Start Quote -------------------------- > I'm searching for a Hal Chamberlin that at one time > lived at 123 Ashe Ave. Raleigh, N.C. > I'm trying to track down information about the > "MINI-MINI COMPUTER". > Thank you for your time, Hi, you've reached me. Where in the world did you find that address? That's where I lived when going to North Carolina State University junior and senior years! Right now I'm living in Korea but will be back in the 'States in a bit less than a year. The "MINI-MINI COMPUTER" is a paper design I did shortly after graduating in response to requests from hobbyists around the country about how to make a core memory unit function. It was a slimmed down version of the computer I had successfully built and run year earlier called the HAL-4096. MINI-MINI was described rather completely on 2-4 (don't remember exactly) hand-printed letter-size pages which I reproduced via blueprint machine. I filled about a dozen requests for copies but never heard of anybody actually building one. I have at least one set of the original blueprints in my archives in America. I take it from your by-line that you have a museum of sorts that concentrates on analog computation. MINI-MINI was strictly digital with 4000 (not 4K) 4-bit words of core memory. Each word could hold one octal digit plus a "flag" bit which was used to indicate the boundaries between words and whether a word was negative or positive. Thus it was a variable word length machine like an IBM 1620. Instructions were 10 digits long and consisted of 2-digit opcode and two 4-digit addresses. There was no accumulator; everything was memory-to-memory so one instruction could do a lot. Although MINI-MINI was probbly never built (at least not by me), HAL-4096 WAS built and ran from around 1970 until around 1979 when I moved from New Hampshire back to Raleigh (it was retired then and didn't make the move because wires in the core memory were corroding and breaking). I have some photos, a newspaper clipping, some of the homemade boards it used, perhaps a memory plane sample, and some software listings. It was a pretty complete system with full console, Selectric typewriter (and later a line printer), card reader, card punch, paper tape reader and punch, and modem (300 baud). Software included a full-featured assembler and BASIC interpreter, a version of which was remotely accessible via auto-answer modem (Bill Gates, eat your heart out - I beat ya by more than 2 years). There were tons of utilities and some experimental music synthesis software (the real reason it was built). I've still got much of the software on paper tapes, card decks, and printed listings. --------- End Quote -------------------------------------- I just contacted Hal again to nail down the date that these pages were written. And he said: --------- Start Quote ---------------------------------- > I was wondering, in what year the handout was written? I graduated with a BS in the Spring of 1970 so that would have been the Summer of that year. I believe that Mike Quinn had suggested that I write some plans for using IBM 1401 core memory planes which he had in abundance at the time and that was the result. It was really based on the then running HAL 4096 which used a larger IBM 1620 memory unit. >Did you know that there is a page at: >http://www.mtu.com/basics/mtufounders.htm that states: >> In 1966 as a college freshman, Hal designed his >> own digital computer (the HAL 4096) using scrap >> IBM magnetic core memory planes and logic cards. >> .... The HAL4096 was demonstrated publicly at the >> 1968 NC State University Engineer's Fair. That web site is run by my former business partner at MTU. The HAL 4096 wasn't really begun until 1968 (beginning of Junior year) when I got the core memory unit from Mike Quinn and some logic boards from IBM where I had worked the immediately preceeding Summer. What was shown at the Engineer's Fair was the core memory and ALU doing "something useful" (don't remember what it was) but the CPU didn't execute the full instruction set and have any useful software until 1969-1970. > Thank you for your time. Many people today are > interested in this kind of history. And your > design is a good indication of the type of serious > projects that were being attempted at the time. Again, feel free to do what you want with the MINI-MINI plans. --------- End Quote ------------------------------------ If these pages are not already available and someone would like to host them, let me know. Like I said before I'm not sure what the effect of many people trying to download this file would be, so I will give the filename to one person. And that person can make them available to anyone interested. The scans are a little rough but then the originals are 30 years old and copies from a blueprint machine. The 6 pages are 8.5x11 scanned at 300 dpi stored as .JPGs and zipped together for a total file size of about 15.5 MB!! Oh! and I'm on digest. Regards, --Doug And if I still have anyone's attention, does anyone know where I can find program to do Group 4 fax compression under Windows 98? Or a program to put a .PDF wrapper around scanned pages (for the budget conscious) under Windows 98? Thanks, --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://dcoward.best.vwh.net/analog Analogrechner, calculateur analogique, calcolatore analogico, analoogrekenaar, komputer analogowy, analog bilgisayar, kampiutere ghiyasi, analoge computer. =========================================

24 years, 5 months

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Some pointers needed on a 11/70

by pete＠dunnington.u-net.com

On Jan 8, 10:44, The Wanderer wrote: > Pete Turnbull wrote: > > > > OK. From what you've written there, and a few other places, I assume you > > have some manuals and/or printsets? > > Most of them, but from the MK11 memory box, only the MOS board and both > controller boards. That's a pity, bacause he manual for the MK11 system has a lot of troubleshooting flow charts -- too much for me to try to reproduce. And it has the setup instructions, of course. > > > > That's an unusual address, and it's only 32K bytes (16KW). You said > > you > > > > had two 64KW boards. What type are they? They probably have switches > > Are they M8728-AA or M8728-CA? The latter is only 16KW. The easy way to > > tell the difference, if there's no -A or -C beside the number, is that > > One is a '-AA' version, the other is a '-AC' one, and both are fully > populated. >From reading the manual, it looks like two arrays (M8728) is the minimum for the box. It might work with one, though. > There are no switches at the front of the box, unless you mean the > control panel > which contains the thumbwheel switches and a few other switches? Yes, that's what I meant. The three thumbwheel switches on the left set the start address of the box, in 32KW blocks. That's the smallest size you can have in a box, and since the arrays are either 16KW or 64KW I think you need to have at least two (but you can have an odd number, eg 3, after that -- it just won't do any interleaving). Anyway, set these three to zero. The other thumbwheel (?) switch sets the external interleave; it has to be set to zero unless you are interleaving between multiple boxes. Then the cards have to be in the correct slots. Looking from the front, slot 1 is on the right, and slot 26 is on the left, PSU regulators are at the back. The address buffer (M8158) must be in slot 13, the data buffer (M8159) in slot 15. The #0 Control A board (M8160) must be in slot 11 and the #1 Control A board in slot 16. The #0 Control B board (M8161) must be in slot 10 and the #1 Control A board in slot 17. The #0 controllers handle the even-numbered arrays, in slots 2...9; the #1 controllers handle the odd-numbered arrays, in slots 18...25. Slots 1,12,14,26 are not used. You must set the power-fail jumpers on the M8158. The manual says W1 out, W2 in; W3 out, W4 in. I'm not sure if that's always true. I don't know what you do if you don't want the battery backup! You must also put terminators on the outgoing connectors on the address and data buffers of the last box (the only box, in your case). These are H873 terminator packs, four altogether, one for each BC06R cable. The incoming cables go on J1 and J3 (nearest the long edge of the board), and the terminators go on J2 and J4. You MUST put the screws in the terminators, as that's how they get the power. The first array, #0, must go in slot 9, and the next, #1, in slot 18. Then work out from the centre if you ever add more. There must not be any gaps. If there are some 16K boards and some 64K boards, the 16K boards must all be before the 64K ones. > Do you have documentation on the data buffer board? This one does have 2 > switchbanks, and all are currently 'open'. Those 2 boards are the > only one for which I do not have any docs. I didn't see anything about switches on the data buffer. The address buffer is described as having three switches to set the CSR address of the box. For the first box, set address 17777100 by setting S1, S2, and S3 all closed. For the next box, open S1. For the third, open S2, close S1. And so on. Ech box uses two words for the CSR. > > It looks as though the box might be set to the wrong address -- 400000 > > is > > 131072 decimal, or 128K -- and is only showing 16KW (32KB) of memory. I > > don't know how you set the address of the box, though. > > I changed the size register on the 8143 to 32K, and it 'disappeared' > completely > from the system, i.e. no memory address was usable. The MK11 logic checks the address on the bus to make sure it's between the limits set by the size register in the CPU, and it's start address. If the address on the bus is less than the box's start address, or higher than the size register, it will not respond. > > Why do you think address 777644 is the diagnostics ROM start address? > > That was a mistake, I did mean 765744, which is spoken about in the > documentation. That's not an entry point! It's not even executable code, it's the ROM Identification word. It contains the ASCII characters "B0" to identify the ROM. The only entry points are: 773x04 to boot without diagnostics 773x06 to boot with diagnostics aaaaaa address dependant on the bootstrap ROM version, which jumps to 765564 in the diagnostic ROM 765564 JMP to start of diagnostics 765000 start of disgnostic code Obviously there are other points at which you could enter the diagnostics, but you'd need to set some things in memory and registers first. BTW, I discovered you can disable the cache by setting 000014 in the status register at 17777746. If the cache is faulty, but enabled, the memory box won't work properly, apparently. I don;t think that's your problem, though. More like a start address error. The first part of the troubleshooting flowchar starts by saying that you want to boot XXDP and run the MK112 diagnostic program :-) Well, obviously you can't do that, but it does say that if you can't boot, then first check ALL the power supplies (sound advice anyway). The next part of the flowchart goes like this: 1) Can you boot XXDP? If "no", is the memory box ON LINE? If "no", put it ON LINE and go back to (1) If "yes", is MEM PWR READY lit? If "no", "ZAP 200" [I have no idea what this means!] If "yes", suspect (in this order): BA11K regulator 7014251 battery backup regulator 11/70 Unibus problem If "no", reverse or replace the grey box control cable If "yes", is "UNCORR ERROR"? If "yes", go to next sheet [which is too complex to type] If "no", is there an "ADDR ERROR"? If "yes", suspect (in order): bad or loose BC06R cable address interface, M8158 11/70 cache fault If "no", halt CPU power memory box off power memory box on again Is there "CONFIG ERROR"? If "yes", install arrays properly suspect Control A (M8160) on right side If "no", is "SELECT PANEL" lit? If "yes", go to next sheet If "no", set "FORCE FRONT PANEL" Is it lit? If "no", suspect (in order): "Reset Box" control cable switch or light on box controller data buffer, M8159 If "yes", suspect (in order): data buffer, M8159 address buffer, M8158 Maybe this will be of some help. > > All the 11/70 tests halt on error [...] > > So having it loop until you stop it, and then halt at some address > > ending > > in 344 doesn't make much sense to me. I wonder if it was trying to store data in 000700...000706 (which it does at the very start of the diagnostics), getting a bus error (no memory), trying to access the trap vector at the bottom of memory, getting a bus error for that too, and just getting stuck until you halted it. -- Pete Peter Turnbull Network Manager University of York

24 years, 5 months

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Compukit UK101

by Adrian.Graham＠corporatemicrosystems.com

Hi folks, After the cap questions I got the new ones put back on my bare-board machine last night, re-socketed all the chips, resoldered the power connections etc (they looked a bit iffy) and switched on..... ....and got a screenful of garbage. Hmm. Then I hit both RESET keys..... and got a boot prompt! Woo! At this point I know I can either go into the Monitor or Basic or whatever (ROMS are on the board) but none of the keys would do anything apart from RESET. This made me connect up my other UK101 (with the lovely injection-moulded bright orange case :) and that one gets as far as the screen of garbage and won't reset. I'm suspecting keyboard problems on both machines, but if anyone can remember how they booted that'd be smart. I'm off to check the official UK101 web page to see if there's any tips there too. cheers! a

24 years, 5 months

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Ceramic capacitor question

by Adrian.Graham＠corporatemicrosystems.com

Hi Tony (and list), > Why do you suspect they're faulty (or why do you want to > replace them). They're physically broken :) Perils of parcelling up an open board without covering it sufficiently...... > will be fine. Actually, a lot of these caps will be between the +5V > supply and ground, so the Mapl 0.1uF 16V ones would do as > well. But I'd use the 50V ones. Yup; certainly all of the broken ones were between +5V and GND and I got them swapped over last night - 104Z 50V ones 'cos I found a parking space just round the corner from the shop on my way home, and I got 12 english pence back too :) This brings to mind a separate question that I'll post in a bit. cheers! a

24 years, 5 months

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"Locking Connector Kits" for LocalTalk

by mythtech＠Mac.com

>Not necessarily; the C64's video port comes in an 8-pin variety and they >call that DIN-8 also. Much larger, however, than Mac Mini-DIN. I meant isn't the Mac din size (the one I thought you were refering to since you were talking about building an adaptor for a mac telenet connector), isn't THAT a mini-din. I always thought the mac serial size (as well as things like ADB, PS/2, S-Video...) were Mini-Din, and things like MIDI, AT Keyboards, stuff like that was just plain DIN. It always made sense to me, since the two styles are very different in overall size... but then, I always thought a D shell 9 pin connector, as found on things like the Mac Plus mouse port, was a DB-9, where it is really a DE-9... so maybe the mini vs large dins have two different names too. I am fairly sure MCM also sells female DIN connectors in various pin counts, as well as the mini-din ones. -chris <http://www.mythtech.net>

24 years, 5 months

2
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Apple disk -> MSDOS

by cpg＠aladdin.de

Sorry for my previous mail, I hit send prematurely... On 01/08/2002 08:47:59 PM PST "Fred Cisin (XenoSoft)" wrote: > >There have been a few special boards that could be installed into a PC to >do it. The Compaticard is NOT one of them. "Match Point" might be, as is >Apple Turnover, and it's even theoretically possible to do it with the >CopyII Option board (if you are willing to write a program comparable to >the Apple OS file system. Same with Catweasel - theoretical possibility, >but significant software needed but not available. So would it be really possible for the CopyII Option board? IOW, is there programming documentation available on the net? regards, chris

24 years, 5 months

3
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eMag Solutions LLC announces end of life plan for open reel (9-track) tape

by bill_r＠inetnebr.com

Maybe this has already gone through the list. If not, I thought it might be of interest. Seems like the end of an era... http://www.emaglink.com/Articles/17Dec01.htm Atlanta (December 17, 2001) - eMag, the last manufacturer of open reel (9-track) tape, is announcing its end of life program for users of this product. eMag, which has produced open reel (9-track) tape in its Graham, Texas facility for over 30 years, has determined that the significantly decreased demand for this once dominant magnetic media format mandates an organized end of life announcement and program. To provide an orderly and seamless transition for users of open reel (9-track) tape technology, we have spent over 3 years developing alternative solutions that have proven to be both operationally efficient and cost effective. For a more detailed description of eMag's alternatives please visit 9-track Retirement. Final Orders In order to properly prepare for our final build of this product, eMag will review and accept final orders for open reel (9-track) tape now, and through January 14, 2002. We will prioritize shipments for firm non-cancelable orders, on a first come first served basis, consistent with our existing inventory and final manufacturing run and plant capacity. eMag will not manufacture new open reel (9-track) tape after these final orders are completed. To assist you with your needs and answer any questions, eMag has designated experienced program managers in the United States and Europe to oversee this end of life program. Please direct all orders, and other inquiries to them at: USA Scott Gaylord Vice President 404-995-6022 sgaylord(a)emaglink.com Europe, Middle East and Africa Mark Stephens Vice President 44-1495-311000 mstephens(a)emaglink.co.uk About eMag Solutions eMag Solutions is an international organization, headquartered in Atlanta, Georgia. Our European operations are based in Brynmawr, UK, and there are more the 200 employees worldwide. Thirty years of success working in data center environments has created a team of expert and experienced professionals, with unparalleled knowledge of data media, its capability, application and potential which has allowed us to develop additional strategic relationships to ensure that our clients have access to the best data storage solutions available. Bill Richman bill_r(a)inetnebr.com http://incolor.inetnebr.com/bill_r Home of Fun with Molten Metal, technological oddities, and the original COSMAC Elf computer simulator!

24 years, 5 months

4
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Looking for a couple of boards...

by vance＠ikickass.org

I am looking for an ATI Graphics Ultra Pro MCA and an IBM Image-I Adapter/A. Let me know if you have one you can get rid of. Thanks. Peace... Sridhar

24 years, 5 months

2
2
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PLD help

by CLeyson＠aol.com

In a message dated 09/01/02 RCini(a)congressfinancial.com writes: > Hello, all: > > Well, I'm picking up the 6502 SBC project that I started last year. > To reduce chip count I'd like to use Atmel PLDs for address decoding. I > downloaded some app notes from Atmel's web site but are there any practical > tips for using/programming these devices for use in a hobbyist project? > > Rich > Hi Rich I've used the MAX3000 series CPLD's, one problem I did find with these devices is that the top mosfet in the output stage is an N channel device. If you need to drive logic with CMOS input levels you could run into difficulty. Pull-up resistors may be required. I couldn't drive logic level mosfets and some Analog Devices parts with MAX3064 using 3V3 supply. The 'byteblaster' parallel port JTAG programmer can be a bit erratic. I had to decouple some of the JTAG signal lines with 47pF caps to make it work. Atmel's free software is really easy to use once you get used to it. Also, don't forget to tie un-used input pins to ground or Vcc. Because I was never happy with Atmel's MAX3000 output stage I switched over to using Xilinx Coolrunner. The Xilinx parts have a true complimentary output stage and you get proper rail to rail drive levels, they're also lower power too. On the downside, you have to buy a Xilinx JTAG programmer and their software leaves a great deal to be desired. Good luck Chris

24 years, 5 months

1
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WTB: Tandy items

by jhellige＠earthlink.net

I was wondering if anyone might have any of the following Tandy catalog numbered items in their piles: TV/Joystick board (26-5142) Vianet networking board (26-1220 or 26-1221) DCS interface kit/board (26-5147) All of these boards are for the Model 2000 and have the 96pin euroconnector. The DCS is the interface board for the early Iomega Bernoulli drives. Truth be told, I wouldn't be picky if someone had anything related to the Model 2000 to offer up! Jeff -- Home of the TRS-80 Model 2000 FAQ File http://www.cchaven.com http://www.geocities.com/siliconvalley/lakes/6757

24 years, 5 months

1
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PC Gamer, best 50 classic games issue?

by DAW＠yalepress3.unipress.yale.edu

! From: Mike Ford [mailto:mikeford@socal.rr.com] ! ! ! A few years ago just at the end of the BBS era, a new little software ! company came out with a Terminal package for the Mac that ! used their own ! serial port driver. I can't remember the name, but they ! buffered the port ! with some fairly nice code that ran I think during the "VBL" ! of the video ! interrupt. Not only was the throughput great, no gliches, but ! the big demo ! thing was to format a floppy during the downloading of a file. Market ! window was bad though, and I don't think they lasted even a year. Does anyone remember what this software package name is? Sounds like something I'd like to have & use... --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

24 years, 5 months

2
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Symbolics systems in VT -- free to good home

by tony.eros＠machm.org

Contact the original sender... -- Tony >From: > Nichael Cramer <nichael(a)sover.net> > > > > >[Feel free to pass this on to anyone who you think might be >interested.] > >I have in my basement and will donate to a good home [read >"anyone who will come pick them up"] both a SMBX 3630 and >a 3645, complete with keyboards, monitors, etc. > >Terms: >Free. All you have to do is come collect them. >[Located in Brattleboro in SE Vermont. They're in my >basement, but the basement has a nice big double-door >bulkhead, so getting them out shouldn't be too much of >a hassle --although you can't count on much help from >me in moving them.] > >Condition: >"They worked just fine the last time they were turned on." >[Although, in the name of accuracy, this has been a few years.] > >In short, the machines belong to the first person who shows >up in my driveway with a UHaul and sufficient gorillas to >help him/her wrangle them out to the truck. > >(Note: You're welcome to come look at them first if you're >interested. But beyond that I can't supply much more information >than the above. They were given to me, and since that time >I've neither turned them on nor looked under the hoods.) > >Finally: 1] preference given to anyone who will take them both. >And, 2] no, I'm not interested in piece-ing these out; if you >want part of one, you have to take the whole thing. > > > http://www.sover.net/~nichael/free-lispms.html > >Nichael > >-- >Nichael Cramer >nichael(a)sover.net >http://www.sover.net/~nichael/

24 years, 5 months

1
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PLD help

by RCini＠congressfinancial.com

Hello, all: Well, I'm picking up the 6502 SBC project that I started last year. To reduce chip count I'd like to use Atmel PLDs for address decoding. I downloaded some app notes from Atmel's web site but are there any practical tips for using/programming these devices for use in a hobbyist project? Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile)

24 years, 5 months

1
0
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Astronautics ZS-1

by dhquebbeman＠theestopinalgroup.com

> > Bill, maybe we can do a joint on this one. > > Not if it will stink up my van <g>. With the big peace symbol on the grill, don't you get pulled over a lot? ;)

24 years, 5 months

1
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"Locking Connector Kits" for LocalTalk

by mythtech＠Mac.com

>And here is my follow-up question... Is there an *easy* way to get the cover >off of a DIN plug without making anymore new scars in my fingers? At least the ones I've worked with, there is a small locking tab on the casing (kind of like a finger that drops into a hole). I stick a small flat blade screwdriver under that, and then push the cable (and connector by proxy) out. If there isn't a cable attached already, then I stick a screwdriver (usually philips) into the end where the cable would go, and push the insides out. -chris <http://www.mythtech.net>

24 years, 5 months

2
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Does anyone have the IMSB009 DSP development software? (IMSA100 DSP chips)

by rmeenaks＠olf.com

Hi, I am looking for the TDS703 or equivalent development software for INMOS' A100 DSP chips so that I can program a IMSB009 accordingly. Does anyone have the development software for either this DSP chip or the actuall IMSB009 board itself? Thanks... Ram -- ,,,, /'^'\ ( o o ) -oOOO--(_)--OOOo------------------------------------- | Ram Meenakshisundaram | | Senior Software Engineer | | OpenLink Financial Inc | | .oooO Phone: (516) 227-6600 x267 | | ( ) Oooo. Email: rmeenaks(a)olf.com | ---\ (----( )-------------------------------------- \_) ) / (_/

24 years, 5 months

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Almost On-Topic: DEC AHA1742B Firmware

by doc＠mdrconsult.com

Hi, again. I just tripped on my Jensen box looking for the dial calipers, and that reminded me. I have a DEC 2000/150axp, working, and a copy of Digital Unix v4.0, licensed, that I want to run on it. The problem is the EISA SCSI firmware. The OS wants firmware version G2, my AHA1742 has version G1. I tried the firmware images from Adaptec, but the DEC installer hurls on that too. Does anyone know where I might find DEC firmware upgrades for the SCSI adapter? Burning the EEPROMs isn't a problem. This box is only 9-and-a-half years old, so you'll all please excuse me. ;) Doc

24 years, 5 months

5
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Apple disk -> MSDOS

by cpg＠aladdin.de

Aladdin. Securing the Global Village. Gabriele-M?nter.Stra?e 1, D-82110 Germering Tel: +49 (89) 89 42 21 -0 Fax: +49 (89) 89 42 21 -40 See our Web site at http://www.aladdin.de On 01/08/2002 08:47:59 PM PST "Fred Cisin (XenoSoft)" wrote: > >On Tue, 8 Jan 2002, M H Stein wrote: >> Do I gather from previous discussions that it's a >> problem reading an Apple II floppy disk on a PC? > >No PROBLEM, just impossible. > >There have been a few special boards that could be installed into a PC to >do it. The Compaticard is NOT one of them. "Match Point" might be, as is >Apple Turnover, and it's even theoretically possible to do it with the >CopyII Option board (if you are willing to write a program comparable to >the Apple OS file system. Same with Catweasel - theoretical possibility, >but significant software needed but not available. > >> I think with a little software I could transfer it >> to one of my PETs via the cassette port, and from there >> it would be trivial to get to a PC, but I'm hoping >> there's an easier way. > >Really? The PC can't do PET disks, either. But you MIGHT be able to >interface one of the aftermarket IEEE488 drives to the Pet with some >trivial hardware, and then interface it to the PC, and just write a file >system for it. > >But, if you have a serial port on the Pet, then it'll be easy. > >Or maybe you could program the cassette port of a 5150? > >If you have an Amiga, and are willing to buy or write significant >software, it can (in theory) do both Apple and PC. > >> I have a CompatiCard I and Uniform, and I still have >Those will be nice for doing MFM diskettes. No help at all for GCR >(Apple and Commodore). > > > >> the T300 that no one wanted which can do 96TPI 640K >> MS-DOS diskettes as well as the usual MS-DOS 5.25 >> formats, if that's of any use. > >If you DO figure out a use for it, let me know. Somewhere around here are >a few of them. I patched PC-Write to run on it, but never came up with >anything else to do with it. Eventually I gave one to Toshiba's MRI >division, because they couldn't get one throught their main corporation. > >-- >Grumpy Ol' Fred cisin(a)xenosoft.com > ************************************************************************************************** The contents of this email and any attachments are confidential. It is intended for the named recipient(s) only. If you have received this email in error please notify the system manager or the sender immediately and do not disclose the contents to any one or make copies. ** eSafe AKS_MUC scanned this email for viruses, vandals and malicious content ** **************************************************************************************************

24 years, 5 months

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eMag Solutions LLC announces end of life plan for open reel (9-track) tape

by steven_j_robertson＠hotmail.com

Haven't looked recently but, they show up on ebay quite often. Prices are typically in the $2.00 - $5.00 range per tape. About two years ago, I bought 30 boxes of new 2400' tapes. As I recall, I paid $3.00 per tape (with shipping). I'd be willing to part with some but, since I'm recently unemployed, I gotta make some money on the deal. SteveRob >From: "Jay West" <west(a)tseinc.com> >Reply-To: classiccmp(a)classiccmp.org >To: <classiccmp(a)classiccmp.org> >Subject: Re: eMag Solutions LLC announces end of life plan for open reel >(9-track) tape >Date: Wed, 9 Jan 2002 08:05:11 -0600 > >Aw Geeze.... is this really the end? I would go nuts if I couldn't get 9 >track mag tapes anymore. Pretty much everything in my collection depends on >it. The note says emag is the last manufacturer. Is that in the US, or in >the world? I'm wondering if they will still be available for purchase, but >will originate from overseas manufacturers. > >Anyone have a box of good condition 1/2 mag tapes they'll part with? >Probably not now I would guess. _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com

24 years, 5 months

1
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Toshiba T3200SX Question

by DAW＠yalepress3.unipress.yale.edu

! From: Tothwolf [mailto:tothwolf@concentric.net] ! ! ! You can remove NiCad leftovers from the boards/parts with ! vinegar after removing the battery. You need to remove ! all traces of vinegar once you are done, otherwise it will ! damage copper traces and other metals. I apply a paste ! mixture of baking soda and water after rinsing the vinegar ! off, and work over the area with a small plastic brush. ! The baking soda will neutralize any remaining vinegar, and ! seems to be just abrasive enough to clean off most of the ! corrosion without further damaging the copper traces. ! After a mild scrubbing, I rinse the baking soda off with a ! kitchen sprayer, and run the board through the dishwasher. ! Not all boards can or should be washed in the dishwasher, ! however. ! ! This process also works for alkaline batteries, since the ! NiCad mess is also a strong alkaline. So, it sounds like this should fix up my AA battery size MagLite flashlite, where the Duracell leaked in there... --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818

24 years, 5 months

3
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Apple disk -> MSDOS

by RCini＠congressfinancial.com

I believe that the Diamond Trackstar can use a PC floppy drive to read an Apple II disk by using a special passive cable between the Trackstar board and the floppy. For me, I use a real Apple drive connected to the Trackstar. Otherwise, I use ADT to get apple disk images into and out of the Apple<=>PC. For preservation of BASIC listings I would get a super serial card for the Apple, null-modem connect it to the PC, do PR#2 and then "list" the program to a terminal program (with screen logging ON) running on the PC. This same trick, console redirection, is used to get the Apple portion of the ADT program into the Apple (except using IN#2 I believe). Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile) -----Original Message----- From: M H Stein [mailto:mhstein@usa.net] Sent: Tuesday, January 08, 2002 11:28 PM To: 'ClassicComputers' Subject: Apple disk -> MSDOS Do I gather from previous discussions that it's a problem reading an Apple II floppy disk on a PC? I'm about to get rid of my last Apple II clone (No, Ernest, I haven't forgotten you) but there are some Basic programs on Apple diskettes that I might want to port to GW-Basic some day. Trouble is, the Apple has no parallel or serial cards and I don't feel like copying them off the screen by hand. I think with a little software I could transfer it to one of my PETs via the cassette port, and from there it would be trivial to get to a PC, but I'm hoping there's an easier way. I have a CompatiCard I and Uniform, and I still have the T300 that no one wanted which can do 96TPI 640K MS-DOS diskettes as well as the usual MS-DOS 5.25 formats, if that's of any use. Any ideas? mike

24 years, 5 months

1
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Honeywell Level 6 Stuff Needed

by dokay＠imscorporation.com

Yea, I might be able to help you. I have level 6 stuff too. thanks Dan Okay

24 years, 5 months

1
0
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Back to board washing for a moment

by Adrian.Graham＠corporatemicrosystems.com

> -----Original Message----- > From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk] > Sent: 08 January 2002 19:34 > To: classiccmp(a)classiccmp.org > Subject: Re: Back to board washing for a moment > > propan-2-ol (available from Maplin, or at least it used to > be. They call > it isopropyl alcohol). Dammit; I had a can of that in my hands last night and *put it back*. Duh. > Sometimes smoking can come from dry joints that are arcing. > By removing > the flyback and resoldering it, you've eliminated one > possible cause... Yup; I'm going to do that tonight. Last night was 'get the UK101s booting' night and I was *nearly* successful. > Annother cuase (which led me a merry dance once) is just dust > burning off > high power resistors that are _supposed_ to run hot. No > fault, other than > it needed cleaning... That's what started me off on the boardwashing thoughts, and you've also mentioned that in off-list mails. Doesn't help the fact that the VDU itself doesn't appear to work aside from heater glow, but it's one more thing crossed off the list :) a

24 years, 5 months

1
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"The Home Computer Course" published by Orbis, 1983

by OMikeEdwardsO＠aol.com

Hello, I have the complete set (i think) in two grey binders. Does anybody know if it is of any value? Is it collectable? Thanks, Mike Edwards

24 years, 5 months

3
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Bob Supnik is THE MAN!!!!

by vaxman＠earthlink.net

With only a single line patch, I've started the installation of Ultrix 4.4 under simH/VAX!!!! I wonder if anyone would notice if I called in sick tommorrow :) Clint

24 years, 5 months

1
0
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More HP2000 trivia

by mgortych＠ntplx.com

Ok, here's another one....what did you have to do to direct output from your terminal to the system line printer? Also...where would be a good place to look to get an old ASR33 Teletype?

24 years, 5 months

5
5
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VAX 11/780s - Masscomp - Valid equipment available

by mythtech＠Mac.com

>> Want some 8600's? I can get you a few. Where are you located? > > Yes! I'm in Austin, Texas. You mean, like, free? ;) Hey... if 8600's are up for grabs... I could use one (or two, or more if I can be greedy)... I'm in NJ (and willing to drive) -chris <http://www.mythtech.net>

24 years, 5 months

2
1
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Language and English

by pete＠dunnington.u-net.com

On Jan 4, 18:33, Hans Franke wrote: > > When I was in the 8th grade, one of the courses we were required to take was > > in typing. I've never gotten particularly good at it, but I did learn that > > a period at the end of a sentence is followed by two spaces, for example. > > Thank you very much. So it seams there is a 'school' forcing this in > the US .... and I always wondered why some people add two spaces after > a period. It's a recognised standard in English. The idea is to make sentence spaces larger than word spaces. Curiously, it's not common in the printing profession, and not at all in other languages. I imagine Hans was taught that it's "wrong", since I imagine he learned to type in German. -- Pete Peter Turnbull Network Manager University of York

24 years, 5 months

6
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"Locking Connector Kits" for LocalTalk

by mythtech＠Mac.com

>All three of those places have the right part. You might want to double >check that the pinout is the same, but I imagine it is fairly standard. >Jameco has a 6 pin mini-din that is pc mount for around $0.60 in single >quantity, I think. Cool... thanks (and based on that price, looks to be cheaper than MCM... IIRC, I paid about $2 each for the mini-din 8 females that I bought) -chris <http://www.mythtech.net>

24 years, 5 months

1
0
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VTech Laser 50?

by doc＠mdrconsult.com

Does anybody know anything about this thing? The local thrift shop has one that they claim works (but they don't know how to work it), with everything but an AC power supply. It comes with a very broken box, or pieces of it, instruction manual and a Basic tutorial. The sticker on the back says 1985. The console itself is cosmetically perfect. I didn't get it yet, because there is a compartment at the back that appears to take some kind of cartridge. Is that part necessary for use? It also has a narrow male card-edge connector at the back, maybe 18 or 20 pins. What's that? Not surprisingly, there's not a lot of information about it on the web. Mostly Google turns up old posts to classiccmp mailing list.... Doc

24 years, 5 months

4
5
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"Locking Connector Kits" for LocalTalk

by mythtech＠Mac.com

>> Not that it will matter, as you don't plan to build it anyway... but for >> reference... MCM Electronics (www.mcm-electronics.com) sells Female Din-8 >> (although, isn't that size really a mini-din?). Mini-Din, Din, either >> way, I know they sell them, as I bought a few a while back to replace the >> broken off serial ports on a PowerBook 160. The ones I bought were solder >> type, and meant to be used with a cable (so now my Powerbook has two >> short cables sticking out the back for the serial ports... no matter, it >> sits on a shelf acting as a nat router and backup mail server these days) > >If you ever decide to replace these with the right connector, Mouser >Electronics http://www.mouser.com/ or Digi-Key http://www.digikey.com/ >should have the correct part. You might also want to check Jameco >Electronics http://www.jameco.com/ They have the part that solders directly to a board? As far as the right SIZE, the ones I have are the correct part... I was just unable to find ones that connected directly to the logic board, so I put short pigtails on the ones I found, and connected that to the logic board. It doesn't really matter much to me for the Powerbook 160, as I am never going to bother replacing them (it is no longer used as a portable computer, so the pig tails don't matter to me)... but if they have the correct part, I will keep them in mind for future purchases (I am bound to have to replace another one some day... I can guarentee that my boss will break the serial port on his current powerbook... just as he did with the 160 that I already fixed... I swear that guy kicks connectors into place!) -chris <http://www.mythtech.net>

24 years, 5 months

2
1
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More stuff to liquidate...

by mythtech＠Mac.com

>1) A Wyse-50 terminal, green CRT IIRC. NIB - only removed for viewing. No >keyboard. Pre-packed in original box, so only shipping costs apply. DANG! I need a Wyse-60 on the cheap... SO close :-( -chris <http://www.mythtech.net>

24 years, 5 months

1
0
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Astronautics ZS-1

by auringer＠tds.net

Hi William, > What kind of window are we dealing with? A week? A month? I think I need a commitment this week or next at the latest. Our HQ is in a hurry to get this stuff taken care of. I found out this morning that they are sending maintenance people here tomorrow (tuesday) to pick some stuff up. I am in the process of stripping three "spare" ZS machines so they can take the chassis and power supplies. I know these three would never be viable as complete systems, so I want to get all the usable stuff out of them. > Quite interested, by the way. I think I know people that worked at > Astronautics. There were a bunch of them. When I started here in 1989, there were over 150 people in this facility. Two weeks after I started they shut down the computer group and most everyone left for new challenges. :( Are you in the Madison area? Do you want to come take a look at what we are dealing with? > William Donzelli > aw288(a)osfn.org Later, Jon Jon Auringer auringer(a)tds.net

24 years, 5 months

5
8
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Some pointers needed on a 11/70

by pete＠dunnington.u-net.com

On Jan 9, 2:11, Pete Turnbull wrote: > 10 and the #1 Control A board in slot 17. The #0 controllers handle the ^^^ That should be "B". That's what I get for using cut'n'paste too quickly :-( -- Pete Peter Turnbull Network Manager University of York

24 years, 5 months

1
0
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Jumper settings needed for Heath H-27 disk controller

by Gary.Messick＠itt.com

Ethan, I'm pretty sure I have a copy of the H-27 manual(s). Do you still need them? What exactly are you looking for? Gary > -----Original Message----- > From: Ethan Dicks [mailto:erd_6502@yahoo.com] > Sent: Saturday, December 29, 2001 7:01 PM > To: classiccmp(a)classiccmp.org > Subject: Jumper settings needed for Heath H-27 disk controller > > > > As I've mentioned before, I have a Heathkit H-11 with > standard Heathkit > disk controller. The disk controller locks up the CPU if > it's in place > in the interrupt chain (it will begin the boot process if it's behind > all the cards with a gap in the grant chain, but after > loading the boot > sector and turning on interrupts, the OS, naturally, won't run). > > So... I have tested all the TTL chips in a chip tester. What I can't > test are the 88xx bus chips. From tracing the grant pins, I think > the 8837 is what hangs off the interrupt lines. I have finally found > some (unsoldered) loose replacements. What I still lack are > schematics > or at least a jumper map. > > The jumpers have been soldered and cut and resoldered before > I received > the card. As a result, I have no idea what they are supposed > to be set > at. Does anyone know the state of the jumpers for default operation? > > Thanks, > > -ethan > > > __________________________________________________ > Do You Yahoo!? > Send your FREE holiday greetings online! > http://greetings.yahoo.com > ************************************ If this email is not intended for you, or you are not responsible for the delivery of this message to the addressee, please note that this message may contain ITT Privileged/Proprietary Information. In such a case, you may not copy or deliver this message to anyone. You should destroy this message and kindly notify the sender by reply email. Information contained in this message that does not relate to the business of ITT is neither endorsed by nor attributable to ITT. ************************************

24 years, 5 months

2
1
0 0

Ceramic capacitor question

by Adrian.Graham＠corporatemicrosystems.com

Another question from me :) The Compukit UK101 has several ceramic capacitors, all marked 104Z 25V, which judging by what I've found on the web so far makes them .1uF. My local Maplins (sorry, that seems to be a swear word in some parts) only has 224Z at 25V (I'd guess .2uF?) and 104Z at 50V, half the size. What can I get away with? Or am I right in assuming I need to match exactly? Ta for any help.... -- Adrian Graham, Corporate Microsystems Ltd e: adrian.graham(a)corporatemicrosystems.com w: www.corporatemicrosystems.com w2: www.binarydinosaurs.co.uk (Online Computer Museum)

24 years, 5 months

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