test-drb January 2005

test-drb@ccmp.vtda.org

254 participants
551 discussions

by fernande＠internet1.net

Hey all, Free, plus shipping. I have everything split into 5 groups. I don't want to split the groups up, as I don't want to be sending out 100 boxs in 100 different directions. -Commodore 128, good shape cosmetically, all cords, power supply etc, original box, but doesn't work. It would freeze up on me, and I lost interest. -Zip100 for PC's (parallel port), new---I opened it, but I can't get it to work on either of my machines. It may very well be fine, since I can't get a Micro Solutions to work on my machines either. -a box full of PC leftovers, a pair of earlier Pentium class chips, slot covers, bay covers, centronics scsi cables, internal 50 pin scsi cables, floppy cables, several fans, a small scsi drive, a small ide drive, Hayes Accura 336 modem, drive rails, blah blah blah..... -IBM AT motherboard, serial card, 8/16 bit VGA card, Adaptec 1542B scsi card, 8-bit ISA MFM ST11R HD controller, Unisys Personal Workstation 2 Multiple Port Board with splitter cable drivers and instructions. -USR Courier V Everything (older one), doesn't seem to work, but has instructions, power supply, and good shape cosmetically..... maybe you need a PS to fix one, or make it look better? Chad Fernandez Michigan, USA

19 years, 7 months

Looking for KA825 (VAX-8250/8350) CPU Card T1001-YA

by msokolov＠ivan.Harhan.ORG

Robert Armstrong <bob(a)jfcl.com> wrote: > Does anybody have a KA825, T1001-YA cpu card that they'd be willing to > give away, sell, or trade for other VAXBI cards? Can't help you there, but... > And does anybody have a boot diskette (BOOT58) for an 8250/8350 that I > could copy? Look on my FTP site: ifctfvax.Harhan.ORG:/pub/UNIX/support/mdec/ MS

19 years, 7 months

help needed with configuration KDF11-A, DLV11-J (PDP 11/23)

by pete＠dunnington.u-net.com

On Jan 21 2005, 12:04, Pierre Gebhardt wrote: > Currently, I'm trying to set up a 11/23 in a BA23 box with a H9278 backplane. > Unfortunately, no information can be found on the jumper configuration for the KDF11-A (M8186). > The most important question: Does this CPU-Board provide bus termination like the KDJ11 boards ? Yes, it does. There are 4 16-pin DIL terminator packs, usually blue, usually labeled 1311003-<something>. > I plugged in some resistor packs on the dedicated sockets of the H9278 to provide termination, but nothing can be seen on the terminal (9600, 8N1). The correct packs? > I'm aware of the QQ/CD configuration for the first 3 slots. > The SLU-Card is a SIGMA DLV11-J clone (SDC-DLV11J). Not knowing, which of the 4 SLUs provides the console interface lead me to check out the 4 ports on my terminal, unfortunaltey without any success. Can't tell you anything about that card, sorry. > The jumper settings on the KDF11-A look like this: > > > > top > ----------------------------- > | | > | | > | | | These two upper ones are closed > | | > | __ | > | | > | > | > | __1 > | | | This is a jumper block of 10 jumpers. The 9th one is open. > | | | The other ones are all closed. > | | | > | --- 10 > | > | |----| | > ----------- ----------- > backplane > > > It's a bit strange, that the jumpers do not have any numbers like W1, W2 etc. > That's the reason for this drawing. Firstly, I can tell you that you have a Revision C board. That's good, as it supports 22-bit addressing in ODT (Rev.A does 18-bit. Both will support 22-bit bus addressing under program control if the MMU is fitted -- it's a 40-pin chip type 21-15542 in the socket nearest the left of the board as you've drawn it). Secondly, you've miscounted the jumpers; there are 11 in that block, not 10. They're jumpers W5 (nearest the card edge fingers) to W15. Just to the right of W7 is W4. W3 and W2 are resistors nearest the right-hand edge of the board; W2 is nearer the fingers and is a real resistor (usually) and W3 is usually a zero-ohm resistor. The one you've shown "upright" near the top is W18, and the other one you've shown, near the right-hand side is W1. The last two are W16 and W17, just above the fingers at the left. W1, W2, W3 are things like the clock and must not be removed. W4 is the BEVENT line; when fitted, it disables BEVENT. It's normally not fitted, unless you have a programmable clock board. W5 and W6 select the power-up mode (0,1,2,3). W7 is the HALT/TRAP option; when fitted, HALT traps to location 000010; when not fitted, HALT enters ODT. Normally not fitted. W8 selects bootstrap address for mode 2; when fitted, the processor jumps to 173000 on power-up; when not fitted, it jumps to an address selected by W9-W15. W9-W15 select bootstrap address for power-up mode 2. W16-17 are reserved and must be fitted. W18 is the wake-up control and is almost always fitted unless you have some external circuitry. Power-up modes: 0: W5 out, W6 out: loads PC from 000024 and status from 00026 1: W5 in, W6 out: enters console ODT 2: W5 out, W6 in: starts bootstrap at 173000 or address from W9-W15 3: W5 in, W6 in: runs extended microcode (custom microcode ROM option) If BHALT is asserted when the processor is booted and W5/W6 are set to mode 2, the processor enters console ODT instead of booting. W9-W15 correspond to bits 9-15 (the upper byte) of the bootstrap address for mode 2 if W8 is not fitted. Jumper inserted makes the corresponding bit a '1'; removed makes a '0'. The lowest byte is always 000. You've got W18 fitted, W1 fitted (so the processor should run!) and we don't know about the rest. However, I'd guess from your description it's W6 that's fitted in that block, and no others. Looks like your CPU is several jumpers short of a full set; it would seem to be set to bootstrap from address 000000. I'd suggest you use wire-wrap wire and a wrapping tool to jumper some of the missing ones, or at least move the jumper off W6 and onto W5 (so it boots into console ODT), and check that W16/W17 are fitted. Factory default settings are W1, W2/W3, W6, W8-W18 fitted; W4, W5, W7 not fitted. That enables all the clocks and things, and sets the processor to try to boot from 173000, and to enter ODT on HALT. > Is the backplane termination required ? Yes! But you could put a BDV11 or another terminator board in the last slot, instead. You might get away without it if you only have a couple of cards in the machine because there are terminators on the CPU. I've not taken the SIP resistor packs out of any of my H9278s to measure them, becasue they're a b****r to get at. However, I have some spare DIL packs from other devices, and I can tell you that each signal has 180 ohms to +5V and 390 ohms to GND, giving standard 120 ohm termination. I expect those SIPs have 5V on one end and GND on the other. -- Pete Peter Turnbull Network Manager University of York

19 years, 7 months

HP2000 fans... alert!

by jwest＠classiccmp.org

I have come across a stash of 12920/12921/12922 mux card sets. These are the cards that are required to run pretty much any version of HP's Time Shared BASIC. I know some of you are working on getting up the dual CPU versions of HP2000/TSB, but a lot of people here have just one CPU. These people could get HP2000/E up and running - that version works on just one cpu, and no special microcode is needed. I know that the 12920/21/22 mux sets are pretty difficult to find, and as I said, they are required. If you ever want to get TSB up and running you should get in on this deal. Most everything else needed to put together a TSB system is still fairly available, except these mux sets which are quite rare. The guy who has them will want real money for them. I suspect he will want somewhere in the ballpark of $100+ bucks per set (it's a 3 card set). I'm going to buy a set to use for a 2nd TSB machine, plus another set for a spare. These cards probably wont be easily found again as they've all but disappeared (to my knowledge). I don't believe his mux sets includes the distribution panels, but the pinouts to build your own cables are well known. If anyone is interested, please let me know off-list immediately as I'm getting an order ready to snag them. Jay West

19 years, 7 months

Homebuilt TRS-80 on S-100 pictures are up!

by dave04a＠dunfield.com

Hi Guys, Sorry for the delay - I finally got my site update posted, and the photos of the Homebuilt TRS-80s on S-100 cards are now available. Please visit: http://www.parse.com/~ddunfield/museum/index.html The Homebuilt TRS-80s are part way down in the first section "pre-PC/non-PC systems". Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

19 years, 7 months

Apple Disk II Analog Board

by marvin＠rain.org

Thanks Tony! The toroids are L1 and L2, and knowing they are 30 uH helps out a LOT! Since they are colored yellow, I am guessing they are iron powder. The application I have in mind is harmonic surpression on 80 M transmitters; hate to see good parts go to waste :). > > The Apple Disk II analog board has a couple of toroid cores on the > > board; does anyone know what the permeability is, or better, what would > > be the equivilent Amidon number would be? > > The official schematic shows 5 inductors : > > L1, L2 30uH > L3, L4 470uH > L5 68uH > > I guess you could count the turns of the existing windings, remmeber that > L is proptional to n^2, and thus get the specific inductance (probably > more use than the permiability) that way. > > -tony

19 years, 7 months

2.5" floppy -- from what gear?

by pete＠dunnington.u-net.com

On Jan 21 2005, 10:28, Joe R. wrote: > At 05:45 AM 1/21/05 +0000, you wrote: > >Steve Jones wrote: > >> There's a 2.5" Panasonic floppy drive that's popped up on > >> ePay today. What commercial gear shipped with 2.5" floppies? > > Some of the Amstrads shipped with either a 3" or 2 1/2" drive. Don't > remember which, it's been a long times since I've seen one. Amstrads use 3" disks, except for soe that use ordinary 3.5" disks. I'm fairly sure my ex-boss's Canon Ion camera used 2.5" disks. -- Pete Peter Turnbull Network Manager University of York

19 years, 7 months

help needed with configuration KDF11-A, DLV11-J (PDP 11/23)

by cheri-post＠web.de

Hi everybody, Currently, I'm trying to set up a 11/23 in a BA23 box with a H9278 backplane. Unfortunately, no information can be found on the jumper configuration for the KDF11-A (M8186). The most important question: Does this CPU-Board provide bus termination like the KDJ11 boards ? I plugged in some resistor packs on the dedicated sockets of the H9278 to provide termination, but nothing can be seen on the terminal (9600, 8N1). I'm aware of the QQ/CD configuration for the first 3 slots. The SLU-Card is a SIGMA DLV11-J clone (SDC-DLV11J). Not knowing, which of the 4 SLUs provides the console interface lead me to check out the 4 ports on my terminal, unfortunaltey without any success. The jumper settings on the KDF11-A look like this: top ----------------------------- | | | | | | | These two upper ones are closed | | | __ | | | | | | __1 | | | This is a jumper block of 10 jumpers. The 9th one is open. | | | The other ones are all closed. | | | | --- 10 | | |----| | ----------- ----------- backplane It's a bit strange, that the jumpers do not have any numbers like W1, W2 etc. That's the reason for this drawing. Like the KDF11-A Board, no information on the internet for the SDC-DLV11J either. Jumper W1,W2,W3,W4 are open. There are 6 dip switches. On SW1, jumper 7 is closed, the rest is open, the same for SW2,SW3. SW4: jumper 6 is closed, SW5: 4,7,8 are closed, SW6: 1,5,8 are closed, the rest is open. Can anybody give me any hints on this configuration ? Is the backplane termination required ? Thanks alot in advance ! Regards, Pierre ______________________________________________________________ Verschicken Sie romantische, coole und witzige Bilder per SMS! Jetzt bei WEB.DE FreeMail: http://f.web.de/?mc=021193

19 years, 7 months

Good news, bad news... Amiga News!

by zmerch＠30below.com

The manager of a local radio station here _years_ ago was going to sell me 2 Amiga 1200s he was no longer using, as he had an Amiga 4000T as his (and his wife's) main computer. At that time, he'd mentioned that he'd never give up the 4000T. For over 6 months after the initial meeting, I'd tried to contact him to no avail, so eventually I gave up... The other day, I was asked if I could repair a Win2K setup on a laptop without requiring to reformat for him and was asked how much it would cost: I said "One of your Amigas." He'd said "sure." I was rather expecting one of the 1200's, but the bad news seems to be that they are probably no longer around (but I don't know for sure) and it turns out the Amiga he agreed to give me is the 4000T, but he needs to get some personal info off of it first, and doesn't have (or cannot find) a keyboard or mouse for it. I have a mouse for my Atari ST that's switchable to Amiga, but I cannot locate it right now... ePay doesn't seem to have too much, most of which is in the UK, so shipping might get 1) expensive and 2) rather slow. I found some adapters that would allow PS/2 mice to be used on them, would this be a good idea? So, anyone have any idears where I could pick up a working, reasonably priced keyboard/mouse set -- or is it 'nature of the beast' that the peripherals are expensive? -- would an Amiga 2000 or 3000T keyboard work on the 4000T? Or: Can standard PS/2 keyboards be 'rewired' for use on them, or is it a totally different protocol? I have *many* of these at my disposal, and trashing a few for testing would be no big deal to me... ;-) Thanks one and all, Roger "Merch" Merchberger -- Roger "Merch" Merchberger | A new truth in advertising slogan SysAdmin, Iceberg Computers | for MicroSoft: "We're not the oxy... zmerch(a)30below.com | ...in oxymoron!"

19 years, 7 months

RTL Logic

by swtpc6800＠comcast.net

My goal on the Tic Tac Toe machine was to build an exact replica of the Don Lancaster 1971 design. I have 2 of the MC789 inverters so I could build one unit. I could change the design to use a TTL open collector inverter but it would be nice to have the exact circuit board. If I switched to TTL I could make the board or a kit available. (I figure a total market of under 10 units.) The other item of a exact replica is the lamp color filters. The company AMP Hexseal still makes the filters (No.1813-27). I wonder how much they cost? http://www.apmhexseal.com/lampfilters/filters.htm After two years of looking a found exact replacement JFET transistors (TIS58) for my TV Typewriter restorations. The generic replacement JFET worked but it is nice to have the exact part. http://www.swtpc.com/mholley/CT_1024/CT1024_Index.htm I got these parts on eBay for $1.35 plus $2.70 shipping. 13 TIS58 16 TIS97 7 L7805CV 2 L7808CV 4 L78N08 5 78L05A ------------------------------- Michael Holley swtpc6800(a)comcast.net www.swtpc.com -------------------------------

19 years, 7 months

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test-drb January 2005