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101090 discussions

KIM Uno Boards available: $10 KIM-1 clone/6502 calculator

by oscar.vermeulen＠hotmail.com

Hi, I just finished my KIM Uno project. It is a handheld KIM-I clone based on a miniature Arduino. Some hard/software extensions make the KIM-1 clone into a pretty effective 6502 programmable calculator, with non-volatile memory to keep code stored. (just to make sure: this is a non-profit hobby project) It costs just $10 in parts. For the next few weeks, I'll send PCBs/kits at cost price to anyone who is interested. The PCB gerbers and firmware will remain on my web site if anyone would like to create the gadget afterwards. The idea was that I like coding in 6502, but I never have much reason to do it. Small calculator-style programs might be the answer... The other idea being I needed a replacement for my real KIM-1, which died sadly. Also, some of the best KIM-1 software I could find is built in to extra KIM-1 ROMs. I had a lot of fun digging them up. So Microchess is there, and some vintage programming tools like Wozniak's 505-byte disassembler, etc. Here is the site: http://obsolescence.wix.com/obsolescence#!kim-uno-summary/c1uuh Regards, Oscar.

11 years, 10 months

Commodore SX-64 new picture tubes for sale 25$ + shipping

by sbothma＠worldonline.co.za

Hello there, Do you anymore of the Commodore SX-64 new picture tubes available? Regards Johann

11 years, 10 months

IBM 3340 needs term card

by h.j.stegeman＠hccnet.nl

Hi, I am looking for a terminator card (2-wide) IBM p/n 5863806 used in the IBM 3340 or 3350. It is normally located in the 01A gate (position A2-A3) of the end of string unit. This card is missing in a IBM 3340 which I want to connect to an IBM System/3 model 15D. Remark: this is not the IBM channel bus/tag terminator card. See: http://www.ibmsystem3.nl/downloads/IBM3340.jpg This IBM 3340 is located at the DDHF near Copenhagen, Denmark: http://datamuseum.dk/foreningen/dansk-datamuseum/ Who can help me ? Some detailed pictures of the IBM components used on this card are also very welcome. Regards Henk

11 years, 10 months

9U VME Sun stuff FTGH

by mouse＠Rodents-Montreal.ORG

Okay, I don't think there's any realistic chance I'm going to want all this old Sun stuff I've been hanging onto; indeed, there's a decent chance I'm never going to want _any_ of it. What chance there is is mostly in case I want to run some VMEbus hardware (for example, I think I have a relatively good VME A->D board somewhere). So I've got a bunch of 9U VME Sun stuff looking for a new home. This is all in Ottawa (Ontario, Canada). I might be convinced to ship, but I would much prefer pickup; I have neither materials to pack this stuff properly nor even the knowledge to tell what materials I would need. I have three 9U VME machines. They worked last time I turned them on, but that was long enough ago that I hesitate to recommend depending on anything being in working condition. (How long? At least a decade, maybe two. They have been stored indoors - in human living quarters, not garages or warehouses or the like - for that time.) I also have some twenty-plus 9U VME boards which are not in cardcages. All part numbers here are ten-finger copies and thus may contain typos. If you suspect I've made a mistake, I can doublecheck. Machine 1: 501-1206 -3/2xx CPU non-Sun RAM (size unknown) empty slot 501-1102 8M RAM with HW patch, component side empty slot 501-1451 32M RAM with HW patch, foil side 501-1045 in 9U-to-6U adapter (internal SCSI) 501-1058 GB graphics buffer [*] 501-1055 GP graphics processor [*] 501-1170 internal SCSI, 501-1236 in 9U-to-6U adapter [*] 501-1116 cg3 framebuffer blank slot cover The three boards marked [*] have the top lever broken off. The two boards marked "HW patch" suffered physical damage to a component; in each case, I soldered in a replacement, which worked as far as I could tell. But they do require that the slot adjacent to them be empty - as configured above, the empty slot between them satisfies this criterion for both boards at once. I haven't inspected those patches to see whether they still look in good shape, but, unless etch runs have torn loose or some such, at worst they should need a little soldering. The "internal SCSI" boards have no connectors on their back panels; they appear to be designed to plug ribbon cables onto for use inside the machine. Machine 2: 501-1206 -3/2xx CPU blank slot cover 501-1102 8M RAM 501-1102 8M RAM blank slot cover 501-1254 32M RAM 501-1217 SCSI, DD-50 back-panel connector blank slot cover empty slot 501-1116 cg3 framebuffer empty slot empty slot Machine 3 is not accessible enough for me to give an inventory of its cardcage; I am convalescing from minor surgery at the moment and am not supposed to do significant physical exertion yet, so inventorying that one will have to wait a week or two, unless I can find help moving the things on top of it. Fuzzy memory says it's a Sun-4/470, but I'm also not sure I didn't empty it out of boards before my last move, so the boards from it could be in the list below. The boards not currently in any cardcages: 501-1164 -3/xxx CPU 501-1217 SCSI, DD-50 back-panel connector 501-1153 AUI Ethernet 501-1134 -3/110 CPU non-Sun RAM, size unknown 501-1153 AUI Ethernet 501-1153 AUI Ethernet non-Sun RAM, size unknown 501-1132 4M RAM 501-1333 32M RAM 501-1333 32M RAM 501-1217 SCSI, DD-50 back-panel connector 501-1217 SCSI, DD-50 back-panel connector 501-1203 16-channel ALM 501-1539 IPI disk interface 501-1381 -4/470 CPU There are also a handful more which need special remark. There are two 501-1584s. This board looks like an AUI Ethernet, but when I look up the 501-1584 number, it is apparently combination SCSI and Ethernet; I don't know whether the SCSI functionality is accessible. There is a board whose tag says it's a 501-1165, but that number appears to be a VME/Multibus adapter; the markings and connectors on the back panel make this out to be an ALM board. There is a non-Sun board from ILLIMITE INC, of Rochester NY; I don't know what it's for, except that its back panel doesn't give any hints, reducing the list of plausible candidates. There are two boards which have lost their plastic tags. I also have two torn-off plastic tags, which likely but not certainly are from those boards; they say 501-1381 and 501-1217. One of the boards is SCSI, a 501-1236 in an adapter to 3U; that is probably the 501-1217. The other is a CPU board. The ROMs are marked 525-1103 through 525-1106; combined with the other plastic tag (501-1381) and a brief look over the board, I think this is probably another -4/470 CPU board. I will be watching both my mailbox and the list for replies, but, given email's unreliability these days, I recommend not counting on it. If you have trouble getting through by email and you care to bother, I should be reachable at +1 613 482 0910. (That number goes through a VoI system I'm the primary geek behind, which puts me in enough control of its behaviour that I don't mind posting it here - it's temporary anyway; I'll take it down in at most a few months.) I also have enough of the small Allen-wrench screws Sun used to hold these boards into their cardcages that I can supply them for any boards that don't have them. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mouse at rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

11 years, 10 months

Semi-OT: xylogics annex terminal server

by simski＠dds.nl

On 01-10-14 01:21, Bill Sudbrink wrote: > Dennis Boone wrote: > At that point, I'll probably just switch to a linux box, a couple of USB > hubs and a bunch of USB<>serial dongles. Somebody has probably already > written a generic POSIX terminal server program... if not, I can hack one > up myself. > Then do yourself a favour and stay away from the el cheapo pl2303 clones. they *seem* to just work fine, but they tend to have all kind of fuzzy defects, not apparent but after a longer period of time. ft232 cost more, but are very reliable -- Met vriendelijke Groet, Simon Claessen drukknop.nl

11 years, 10 months

FS: HP T5735 Thin Clients, 1GB RAM- $50 each shipped

by slandon110＠gmail.com

Just clearing out some more stuff, Ive got 5 HP t5735 Thin Clients They are Sempron 2100mhz with 1GB RAM, 1GB ATA Flash The best part with these is you can replace the 1GB DOM with a hard drive and have yourself a really quiet low power linux box. Or just put a 16GB USB stick in the internal USB port and install linux. I run a system to provide PPP access to my Commodore Amiga, and run my VT420 off of the same system. They have a real serial port. So the possibilities are endless with these. Faster then an RPI It has 8 USB Ports 6 on the outside 2 on the inside Im asking $50 each shipped for them. They come with AC Adapter. The Debian image and XPe image for these is on HP's website if you so choose to download it.

11 years, 10 months

AS400 SOURCE media

by shumaker＠att.net

Just back from a visit to RE-PC in Tukwila.... Tucked back in a corner is a large box of original IBM floppy disks (both 8 and 5.25) for AS-400 with some docs in 3ring binders. Looks to be apps although there are some sealed pkgs as well.... they want $40 for the box but occasionally dicker. Is this stuff potentially significant? Steve

11 years, 10 months

What quad QBUS boards work in a Q/CD backplane?

by jnc＠mercury.lcs.mit.edu

> From: Antonio Carlini >> Does anyone know of a list of quad QBUS cards that work (or do not >> work) in Q/CD backplanes > There are lots and lots of Q-bus cards so it would be quite a long list. Indeed; hence the "or do not work" in my original message - I realized that that list was likely more manageable. (Although one possible bug with the 'does not work' list is that one could get a false positive failure...) > From: David Riley > Conversely, cards designed for the CD interconnect (RLV11 board sets, > PMI memory, PMI CPUs) should NEVER, EVER be plugged into a Q/Q > backplane. Off-topic somewhat, but I wonder why DEC put PMI signals, etc on power pins (I assume that's what zaps a PMI/etc card plugged into a Q/Q slot). Surely there are enough pins which are bus lines, etc, which one could use? Yes, the machine probably wouldn't work if one plugged such a card into a Q/Q slot, but you wouldn't zap boards... >> CB2 is tied to DB2, and the two feed (through a jumper which is >> normally removed) special power (-5V) for a particular kind of EPROM > -5v is an optional rail on Qbus, anyway. Actually, I think AB2/BB2 are 'normally' -12V - although not all power supplies provide the -12 - e.g. the BA11-N only does +5V and +12V. > In general, as long as there are removable grant jumpers for the CD > lanes But not all quad cards have removable grant jumpers - e.g. the BDV11 doesn't. (Not sure why it even _has_ grant jumpers, given that one would usually make it the last card, especially since it has pull-ups - but I guess it's in case one doesn't.) Noel

11 years, 10 months

What quad QBUS boards work in a Q/CD backplane?

by jhfinedp3k＠compsys.to

>Noel Chiappa wrote: >Does anyone know of a list of quad QBUS cards that work (or do not work) in >Q/CD backplanes (other than the board pairs specifically designed to go in a >Q/CD backplane, of course)? I tried Google, but either there is no such list, >or my Google-fu is pretty weak. > >For instance, I'm looking at a BDV11, and it has the usual grant jumpers on >CM2-CN2 and CR2-CS2, but I don't think those will be a problem (provided there >is no quad board immediately next to it). Similarly, CB2 is tied to DB2, and >the two feed (through a jumper which is normally removed) special power (-5V) >for a particular kind of EPROM; but again, I don't think this will be a >problem (again, if blank neighbour slot). > >But I'd rather not have to go through that exercise for every quad card; it >would be nice if there's a table which just says which ones are OK. (I did >find mention, in the 1980 Interfaces Handbook, in the BA11-N entry, that >MMV11-A modules will _not_ work in a Q/CD backplane, which _implies_ that >all the rest are OK, but...) > I don't have a list, but there is at least one example of "do not work" for the RL01 / RL02 Qbus controller which uses a 2 board set and supports ONLY 18-bit. The M8013 / M8014 requires that BOTH boards be (probably adjacent) in two quad Q / CD slots. Placing the boards into a Q / Q backplane will release the magic smoke. While not a good example, in a BA23 box, place the CPU board in the first slot with the M8013 / M8014 in the second and third slots. The non-PMI memory and the other boards will then occupy the other 5 slots. PROBABLY (as mentioned in other posts), the Qbus PMI memory must also be used in a Q / CD backplane AND in this case placed above the CPU board, in this case an M8190. On the other hand, if the PMI memory is placed below the CPU board (but still in a Q / CD slot), then the memory will still function correctly, but NOT as PMI memory. Contrary to what is stated elsewhere, the M8190 boards which support the use of PMI memory work (as far as I understand - I have done so on a VT103 which uses a Q / Q backplane) with either type of backplane, although obviously with the Q / Q backplane, NEVER use PMI memory in the first place. Jerome Fine

11 years, 10 months

History of ABEL and early PLD software

by swtpc6800＠comcast.net

When I was gathering up stuff to send to the Computer History Museum I wrote a history of the ABEL project with lots of reference documents. http://www.swtpc.com/mholley/PLD_History/History.html Michael Holley

11 years, 10 months

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