test-drb

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One SCSI tape connected to 2 hosts?

by geoffr＠zipcon.net

There are SCSI sharing devices out there that will allow one device to be hooked to 2 machines concurrently.

23 years, 9 months

DEC QBUS buffers/control chips

by Antonio.Carlini＠riverstonenet.com

>Intersting you mention the DHV11 as I've just been looking at the printset >for the board as I have one here with the square component at the top between >the two ribbon connectors broken off. looks like a 56uH choke or inductor or >thingymabob. Something to do with the DC-DC convertor to generate -12V for >the RS232 drviers I think. Wonder if I can repace it with a bit of wire :) I'll ask one of the designers when he gets back from his hols :-) Since I think it is a voltage regulator of some sort, I suspect the answer is no. The only dead board I ever knowingly found in the pile of cards that I inherited back in the lab at DEC was a DHV11 and it had had that very component knocked off. >Who runs the Spies.com site, are they here on cctalk perchance? Wish there That's Al Kossow and he's certainly here (and there and evrywhere ...) >was a worlwide central resource for getting manuals scanned, OCRd, PDFd and http://www.decdocs.org points to the main ones. There are a few more that come and go, plus a scattering of sites with just one or two manuals. I don't know of anyone trying any serious OCR - the technology has leaped forward in recent years, but not to the point that it "just works". Given that there are somewhere between 300 and 700 DEC manuals online (just an estimate) any OCR process has to be more or less one button push (i.e. as effortless as straight scanning can be). > online. I must do the RSX11M+ v4.1 orange wall I have at some point... If you can get Mentec to agree to having them made available (ask about bits of RSX and RT-11 V5 while you are at it ...) then let me know and I'll get the CDs online. I did ask but I've not heard anything back. Antonio

23 years, 9 months

DEC QBUS buffers/control chips

by Antonio.Carlini＠riverstonenet.com

>eventually found a description of the DC003, 004, 005, 006 & 010 in "The >Chipkit Users Guide" on the QBUS IDE project page at >http://www.chd.dyndns.org/qbus_ide/ Hit SEND a tad early on that other one! Various DEC manuals describe various DEC chips in their appendices. The DHV11 tech manual happens to cover all of the above except the DC006. One copy lives at http://www.spies.com/~aek/pdf/dec/qbus/ I have not read that chipkit manual, but the DHV11 manual includes a schematic so you get a free reference design. Antonio

23 years, 9 months

[CCTECH] RE: FW: AVAILABLE-- PDP, DEC (list 1)

by DAW＠yalepress3.unipress.yale.edu

Here is list number 1. Hopefully we can help save this stuff from the scrapper... -- --- David A Woyciesjes > ---------- > > This list is from Jon Ikoniak (ikoniak(a)snowhite.cis.temple.edu). > Please contact him with any offers and/or questions. It sounds like some > of > the bigger stuff needs to move ASAP... > > -- > > > > From: Jon Ikoniak (ikoniak(a)snowhite.cis.temple.edu) > > > > > NOTE: The following list was put together by an assistant who was not very familiar with this type of technology. This is a list of most of the small parts we still have in cabinets. This list should be used as a reference. We still have a number of schematics, user manuals, and other assorted documentation that we need to make a list up to send out. We also have a number of assorted electronic items we need to make a list up. Also there are still some larger items such as racks, processors, disks, etc, that need to be put into a list and sent out. We will do so as soon as we can. power cable computer connect cable #BC22E-25 /8149-000 2 computer monitor backs #4433422-01 power control 854 2 power control 832F 4 fan units P/N 70-8762with battery holder P/N 70-08769 Flip chip M105C #342B Flip chip control model# H716 P/N 30-09282 Rev Disc Motor #DF32-D/E, DS32-D/E and under this # DF-32, DS-32 Power Control (Aux Bat Term) P/N 70-14547-3d (h712A) Etchmaster 105067 2 power control 854 P/N 854 Disk control model RK11DSN AS18466 Power control 841A power supply h7420 a (h744,h744,h744,h745) power supply w/ big fans 7009811 47-63Hz 12 amps 1 power control 834 family 1 power control 854 family power supply h872 2 power supply h735 power outlet (PDP) 2 Back plane 877-D power controller H711ATODC Power supply 2 7116 Power supply H 711 A power supply (3) 2 h798 power supplies with 2 capacitors each h 704 power supply power supply P/N 54-11085 RX11 controller back plane with chip # W7257, W7256, W7255 RP08 Back Plane with Chip # W623, M111, W623, M216, M115, M102 Back PlaneRK11-D with Chip # M727, M7256, M7255, M7254(2) Back plane ? Chip # M206 M216 M206 M103 M510(2) M624 M623 M002 M206 M121 M621 M304 M627 M111 M103 M921 DC02F Double high back plates Model# h716 #NN00117 Chip # M115 M113 M111 M002(3) M216(2) M623(3) M 452 M111 M617 M 921 M304 M304 M921 M 216(2) M45 M707 M623(2) 2 sets of mounting brackets for hardware devices 5 fans power supply h7440 011-08070-60 copler 24K static RAM Micro Vax Back plane SER117C PERCOM H730 (5) H7100 A (3) power supply h753 power supply h7100 A power supply h735 power supply h721 (2) power supply h724 Demagnetizer #6501 power supply h779 power controller for RM04 // RM05 P/N 9600410-00 Power supply h728 (4) h317E (mulitiplxer) (2) Power supply h716-b (3) Power supply h719 Power supply 716 Motherboard B4062 RAX 'D' FSA 165506 LED BOARD Printer option distribution board #'s 50116670-P2 and 5411668 side2 G753 Board Power control 841-B Power supply h-754 (2) power supply h-744 (5) power supply h-745 (5) dec power controls 861C (2) Power control 861C power supply 7721a additional power supplies (h744, h744, h744, h745 h754) power supply h771-a power supply h764 power supply h 720e power control 861 B Model OB11-VA P/N BA11-VA Expansion boxes Model BALL-ME P/N h780-E Expansion boxes P/N 780-A DCA-9-25-73 10B (4) DCA 9-10-73 10C (7) DCA 9-27-73 10A (2) DCA 8174 (2) DCA 9-6-73 Power supply h771-a (3) power control BC05h Power supply 716 (4) TA 71403597 Board 1210328-0-0 Rev B interface to power supply h740 a P/n 70-09128 P/n 704 Va Power control 861F Type AD1-D Power control 844-B P/N70-20771-OB Ta71403633 board Power control 861A Power control 861C control panel for disk drive with connector m900B Led display front panel for a PDP ( Deck controller) Print head motor Assembly (LA36 or La180) CABLES Thick wire transceiver cable BNE3D-20 (5) 20 Amp 125/250 volts 4 prong hubbell cable printer cable connector N9700 BC11S-25 Double ended berg interface cable Transiver cable R232 25 pin male/female cable AUI cable BNE3K-05 (3) AUI cable BNE3K-02 (2) AUI cable BCCO6-15 AMIHNOL 57-30360 Computer power connetor cables (10) coaxial cables (4) one with P/N 70-19690-08 Thickwire transciver cable T-DP605 LA180 berg cable Printer cable connector One good end berg cable type? Computer power connectors (2) Power Distributor 5010863D 5410865 Unibus cables for rk devices BC11A-05 (2) Ribbon cables W-584(2) 2051579 007 RH-11AB Front display panel for PDP (3) Multiplexer Control panel for PDP system Controller P/N 70-11411-OK Controller P/N 70-14093 Controller P/N 70-14093 Power control 860-a power supply 708A P/N H-403-A (3) Power supply h745 (3), h744 (5), h 754 (2). Back Panel two high M51579 5409912 500991C ConectorsJ2-J11 M7728 LA36 MPC Ld340 Panel 5DTD1%1006 Rev Panel 161G16 ,P/N50452 Panel M77287C LA 31 Board LA 30 with boards M113, M7711, M7712,M7713, M7714, M7710, M7717, M7717, M7711, M7712. M7713, M7714, M7710, M7711, G436, M7715,G380 (4). LA30 with boards M77112, M7713, M7711, M7711, G8004, M7712, M 7713, G936, M7715, G380 (4). Phoenix 45 SU model 400-005-900 LA30 with borads M7721, M7712, M7713, M7724,M7710,M7717,M7717,G8004,G8004,M7721,M7716,G936,M7715,G380 (4). LA30 with boards M7389,M7731,M598,M7721,M7712,M7713,M7724,M7710,M7717 (2),M7710, M7716, 6336, M715,G380 (4) LA30 M7388,M7731,M598,M973,M7721,M7713,M7724,M7710,M7717 (2), M7716, 6036, M7715,G380(4) VT-62 IO Board Type1 94VO VT-62 MEM Board 916D (2) LA36 Power board P/N 7340624Z LA36 Power board P/N7160445W LA36 Power board P/N 8070860Z Unibus Paddle M9042 5012661B Unibus term M9044 5012749B UBA EXP box power dist 5409944 5009943A DD11-B Back plane RK11-D back plane DD11-A back plane MF11-4 back plane DD11-A back plane KD11-A Back plane MF11-CC Back plane 11/05 S back plane Ke11 Back plane Power Control 861 Power Control P/N 874-D 70-0956 3 Back plane VT-11 Back plane DD11-CK Back plane (2) DD11-B Back plane (2) P/N 70-09563 KE11-A Back plane with boards M827,M7211,234,M7220 ERROR CORRECTION LOGIC M773,M7787,M7775,M7776,M7774,M7787,M773,M7786 (4) M7772,M775,M7772,M7774,M7776,M7787,M7773,M7776,M7773,7776,M7774, M7773, 7776. M7775,M7772 Back plane with Board G110,G231,G110,G231,G110,G231 MIN DEVICE LEVEL INTERFACE BOARD M5903 (46),M7777 (7),M778(6),M7788(7),M7789(6) dec unibus M981 16k unibus timing M8293 (2) 16k x-y drive with board G235,M7234,G14,H2179, G235(2), H2170, G114,M7232,M7235, M7233,M7231 Back Panel with board (MF114 model) M8293, G114,G235,G114,M8293 _______________________________________________ cctech mailing list cctech(a)classiccmp.org http://www.classiccmp.org/mailman/listinfo/cctech

23 years, 9 months

[CCTECH] FW: AVAILABLE-- PDP, DEC parts

by DAW＠yalepress3.unipress.yale.edu

This list is from Jon Ikoniak (ikoniak(a)snowhite.cis.temple.edu). Please contact him with any offers and/or questions. It sounds like some of the bigger stuff needs to move ASAP... -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1 - Darwin Kernel Version 5 Running since 01/22/2002 without a crash > > From: Jon Ikoniak (ikoniak(a)snowhite.cis.temple.edu) > > > > Here is my third list of DEC stuff. > > > > Jon > > > > It is a first come and take to a good home deal. We would rather > see these things go to good homes. We are in Philadelphia, Pennsylvania. > We do pack and ship some items, it depends. Most of is 'come & get it'. > > Below is another list of items that we have had and now > we have put into a new list. This list is different from the > other two previous lists that were sent out. In addition we > have lost the area where we have been keeping the bigger items. > So things like the PDP racks and VAX racks have to be moved > out SOON. We would like to get homes for these big items since > I know that they are becoming harder to come by. So if you are > interested or know anyone who maybe in these items please let > me know. We are still working on a list of manuals, schematics > and other types of documents, which we hope to be ready soon. > > 1 VAX era 3 FT. short rack with RA81 Disk Drive > 1 VAX era 3 FT. short rack with RX02 8" floppy drive > 1 VAX era 3 FT. short rack with MICRO VAX casing > 1 VAX era 3 FT. short rack empty > 1 VAX era 5 FT. tall rack with two BA11 expansion boxes. > 1 VAX era 5 FT. tall rack with RL02 & RL01 removaable disk packs > 1 VAX era 5 FT. tall rack with RX02 8" floppy drive > 1 VAX era 5 FT. tall rack empty > 10 DEC RX01 and RX02 8" floppy disk drive units > 20 LA100 DEC printers/terminals > 6 LA34 DEC printers > 5 Printronix printers > 4 LA120 DEC Printers/Terminals > 1 LA36 DEC Printer > > 1 DEC PDP 11 4 FT. rack with RK05 removeable disk pack unit > 1 DEC PDP 11 4 FT. rack empty > 1 DEC PDP 11 6 FT. rack empty > 1 DEC PDP 11 4 FT. rack empty > 1 DEC PDP 11 4 FT. rack empty > 1 Short 3 FT. rack with RK05 removable disk pack unit > 3 DEC PDP 8/12 6 FT. Racks empty. > > > 2 DEC TU10 10" magnectic reel tape unit driver motors > 1 DEC MICRO 11 backplane part no. M-9278-A > 1 VERSATEC in jet printer unit > Large number of various RK05 disk packs > Large number of RL01 & RL02 disk packs > A number of MASS bus cable pieces and terminators > Various lengths of MASS bus cables for RPxx series > 1 DEC PDP 11 DH11-AE backplane interface with various boards > M5906 M7821 (2), M796 M7280 (2), M7279 M4540 M7288 M7289 > M7277 M7278 > 1 KW12 Clock Control panel with cabling > 1 PDP12 Series panel (Analog Channels 10-17) (Relay Register) > 1 TEKTRONIX Type 601 Storage Display Unit > Numerous 16 Port Multiplexors for PDP 11 configurations > Several BA11 Expansion Boxes Deep > Numerous VT220 & VT240 Terminals > Numerous and various lengths of AUI Network Calbles > Numerous H4000 Tansceivers > > _______________________________________________ cctech mailing list cctech(a)classiccmp.org http://www.classiccmp.org/mailman/listinfo/cctech

23 years, 9 months

DEC QBUS buffers/control chips

by Antonio.Carlini＠riverstonenet.com

> > Does anyone know of a web resource describing the functionality of the > > DEC QBUS interface chips, like the DC003(A), DC004, DC005, DC010, > > DC021(C) and others? > > > eventually found a description of the DC003, 004, 005, 006 & 010 in "The > Chipkit Users Guide" on the QBUS IDE project page at > http://www.chd.dyndns.org/qbus_ide/ > > > greg >

23 years, 9 months

Timex Sinclair 1000 Update and Questions

by doc＠mdrconsult.com

Well. I was roaming yesterday and found a very nice old Macy's dress box. In it was a TS-1000 with the TS-1016 16k memory cartridge, manuals cables, and around 10 tapes, including PIM apps & games. After soldering a broken joint on the m/b [1], running to WallyWorld at 2:00am for a 300ohm-to-75ohm converter, and finally figuring out that I needed to turn the brightness all the way up on the TV, the little booger works. This is the first computer I've had that was in need of board-level repair to start with, simple enough to ID the problem (and not too densely populated), and common and cheap enough to "risk" non-essential modifications. Texas Instruments trained me as a "Certified Solder Sucker" or whatever in 1982, but I really haven't done any electronics work since. I build cables, solder all the joints on auto work, and stuff, but till last night had truly forgotten the joys of eutectic solder. Also till last night, I had truly not realized how much worse my eyesight has gotten.... The card-edge cartridge connector is worn nearly through the traces on the m/b. If the computer is jostled much at all, it loses the RAM and its little mind. Next mod will be to do some (cheesy, yes I know) wire patching to the finger traces. I joked last night about just going to the thrifts for a $5 B&W TV, but my experience with tuning and brightness matches Jeff Hellige's comments, and I may do exactly that if I keep this. What I'll more likely do is try Glen Goodwin's idea and tap the composite signal off the motherboard. The major question concerns the program tapes. I tried hooking up to my stereo, the only cassette player I have anymore, and at any volume, it just blows the Timex away. The display goes to hell, it doesn't seem to "read" the program, and the display stays scrambled even after the cassette stops. The manual states that a "Hi-Fi" tape deck, as opposed to a cheap battery-driven portable, may be the source of problems. Does anybody have a suggestion or solution? My instinct is that my cheap stereo does enough EQ (not optional) to "blur" the signal. One of the websites I found last night quotes the promo for the 16k cartridge - something like "With the addition of 16 kilobytes of memory, the Timex Sinclair 1000 could conceivably store a program of 960 lines, but of course. no programmer would ever need to..." Doc

23 years, 9 months

I hate Radio Shack

by Antonio.Carlini＠riverstonenet.com

>I don't think I learnt _one_ thing at school that has since been useful Not even wreading, riting and writhmetic :-) Antonio

23 years, 9 months

[CCTECH] Fwd: Re: *** OLD (DEC/PDP) COMPUTER PARTS

by rschaefe＠gcfn.org

Hopefully the attachment is still attached... I also have the first two lists, if there is any interest in them. 'Mail Jon if you're interested *and able to pick up*. I don't think he would be able to ship anything. Bob -------- Original Message -------- Subject: Re: *** OLD COMPUTER PARTS From: Jon Ikoniak <ikoniak(a)snowhite.cis.temple.edu> To: Robert Schaefer <rschaefe(a)gcfn.org> Here is my third list of DEC stuff. Jon

23 years, 9 months

Bulk Tape Eraser

by DAW＠yalepress3.unipress.yale.edu

> From: Chris > > > Bottom line . . . demag a HD and it becomes > >a doorstop. > > I prefer to take them apart and make wind chimes from the platters. > > -chris > Or a drink coaster. The circuit boards is good as a backer for a notepad. And use the cases for banks, letter holder, pen holder, etc... Sorry. Brain wandering OT again. Hopefully you'll at least chuckle at me, if not with me. :) -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1 - Darwin Kernel Version 5 Running since 01/22/2002 without a crash

23 years, 9 months

Bulk Tape Eraser

by mythtech＠mac.com

>yeah, they work great on floppies, even on some with soft errrors that >formatting doesn't remove. Just keep in mind you'll still have to >format the floppy after the degaussing. That's actually a good thing. If the disk is wiped to the point that it needs a format from the OS, then I can toss the disks in a general use box, and not worry about which OS they are used on (Mac or DOS/Windows). This way, they can be formatted fresh for the given platform they are needed on (yes yes, the mac can read PC disks just fine, but I prefer not to do that for Mac specific uses) >Wasn't suprised to see that it doesn't do VHS tapes very well. You need >quite a bit more gauss to do those, but a hand held will do floppies, >cassettes and 1/4" tape pretty well. Ok, I guess I have to black track the stack of VHS tapes I have then. No biggie, I was just hoping to avoid running them thru a VCR for 2 hours. >To use, squeeze the trigger switch while the demagger is away from the >media, and bring it up and slide it over and around in a random pattern >for several seconds, 10-30 seconds is usually adequate, then remove the >media while holding on to the switch. This eliminates a big glitch of >magnetism on the media. Ok, not exactly the way I had been using it. I was just putting it on top of the item, turning it on, rubbing it back and forth a bit, then turning it off and removing. I'll change my ways. >What ever you do, DO NOT USE a degausser on a hard drive. There is >embedded information on the tracks for tracking, and if removed, you >need a high cost formatter. Good to know as a "fact" although I had suspected something like this anyway, so I wouldn't have done it. I also wouldn't have tried it on Zip disks, or Syquest carts or other removable "non floppy" media for fear of the same problem. I suspect it might be ok on Zip disks, but I know those are treated more like a hard drive platter than a floppy disk, so I don't consider it worth the risk. > Bottom line . . . demag a HD and it becomes >a doorstop. I prefer to take them apart and make wind chimes from the platters. -chris <http://www.mythtech.net>

23 years, 9 months

Misc For Sale

by bdwheele＠indiana.edu

I got bit by the Gas-Powered RC Truck bug so I decided its time to get rid of some parts that I'll probably never use. Darned siblings with their cool toys! Anyway, everything is working, as near as I can tell, and 'or-best-offer'. I won't ship the LaserWriter, but everything else I'll ship at the buyer's expense. I'm located in Bloomington, IN 47408. If you have any questions, feel free to email me. Brian --- the list --- NewTek Video Toaster 1.0 for Amiga S/N 002460, no software [$100] Sun CG3 (sbus/SS5) 501-2691 [$25] SGI Personal IRIS Boards [$20 for all] Magnum Audio (030-8064-004 Rev G) Video Turbo Option GT2 (030-8020-003 Rev E) Video Z Buffer Option ZB3 (030-8004-003 Rev C) Video Bitplane Option BP4 (030-8003-002 Rev C) Misc Chips [$10 for all] NEC DR3031R-40/VR3010A-40 FPU NEC DR30310R-40/VR3000A-40 CPU Weitek 3172A-025 (FPU for Sun IPC) Weitek XL-3132-100 (FPU) Motorola XC68030RC16B AMD AM29000-16GC Memorex IDE CDROM 48x (new in box, though missing some packing material) [$25] Tandy DCM-3 (26-1178) 300 Baud Modem [$5] DCM-IB (26-1175) 300 Baud Modem [$5] HP Envizex XTerm C2731A [$50] Apple LaserWriter IINTX (2MB) [$75] **WILL NOT SHIP** Toner M6002 (new) [$20] Radio Shack Color Computer 2 (2x) [$10 each] Speech/Sound Cartridge for CoCo (26-3144A) [$10]

23 years, 9 months

Now OT: Speaker boxes... [was:: I hate Radio Shack]

by DAW＠yalepress3.unipress.yale.edu

Replies to this should probably go off-list now :) > From: Kris Kirby > > On Mon, 17 Jun 2002, David Woyciesjes wrote: > > Well, my Hamer 5 string bass does quite well through the Peavey > > head, and into a homemade 4 x 12" speaker cabinet. Yeah they're some old > > generic 12" woofers, but they do 'boom' well, for now... :) > > How have you got the cab wired? Each side in paralell then in series with > the one next to it? > > This might be a much cheaper alternative for me. But I'm wondering if I > could cram a 15" into there somewhere. (15" + 4x 12"?) maybe an 8" as well > in addition to some form of dome or horn tweeter... > > -- > Let's see, each woofer is 8 ohms, so I have each side wired in parallel to their own 1/4" socket on the back, so they'll show 4 ohms. My head has two speaker jacks, so I can have it see 2 8 ohm speakers, or wire in a homemade adapter so it will see a 2 ohm load. I've been thinking about wiring in some DPDT switches, so I can flip each side between 2 & 4 ohms. Depending on how much you travel with those speakers, here's how I would set up the boxes... - 15" in a ported box, all by itself. It'll be heavy. Nice boom for the bottom end. - 4 x 12" in a sealed box. Good tight response, but still has the bottom. This could be used by itself quite nicely. - 8" (or two) in a sealed box with a good horn tweeter. This would go best used with the 15" cabinet, and an appropriate crossover. Maybe your amp has one built in*. It will also be good for practicing by yourself. Nice & tight response, and great if you play some funk style too. * My Peavey does have a built-in adjustable crossover, but it's pre-amp level. I then have to amp each side after that. One would get looped back into the Peavey, and the other to a second power amp... And hopefully you know the make and model numbers for those woofers. That will be required if you want to build the best boxes possible for them. I picked up the 2 speaker design books from Radio Shack to help with the box design. Blaupunkt also has a basic DOS program to help with box design too. The RS books had some decent rough size info for speakers, so I assumed some average-low specs for my 12s went I calculated the box size. I know the box is a little small for them. you can kinda hear it. But I don't have the test equipment needed to find the real specs for these drivers, yet :) I'm working on a spreadsheet that has all of the formulas built in, to help design different boxes. I'm not sure if I have it finished yet or not, though... -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1 - Darwin Kernel Version 5 Running since 01/22/2002 without a crash

23 years, 9 months

OT - DDS-2 drive errors on Microvax 3100, VMS 7.3

by bob_lafleur＠technologist.com

It seems like we get a lot of VMS questions here, which probably doesn't really fall directly under the list rules. I'm guilty of it too. But there's so much knowledge here, it's hard not to ask. If anyone can point me in the direction of an active VMS mailing list, I'll ask my VMS questions there instead. And if there's not one, I'd consider setting one up if there happens to be any mailing list software that works with Exchange Server 2000. ----- I've got my ARCHIVE Python (model 4326) DDS-2 drive connected to my MV3100. It is connected to that machine only (I don't have it dual-connected, as discussed in another message thread) and it's on my 2nd SCSI controller chain. When I first boot the system, the first restore I do from tape I get this message: $ backup mkb100:rob/save *.* %MOUNT-I-MOUNTED, ROB mounted on _BOB$MKB100: %BACKUP-E-READERRS, excessive error rate reading MKB100:[000000]ROB.; -SYSTEM-F-CTRLERR, fatal controller error %BACKUP-I-OPERSPEC %BACKUP-I-OPERASSIST, operator assistance has been requested I then get "fatal controller error" messages whenever I try to access the drive, until I turn it off and back on. After the above erorr, the device shows 102 errors in SHOW DEVICE. Once the drive is turned off and back on, it works fine from then on, with no problems. If I boot the system, then turn the drive off, and back on, I *still* get this message for the first restore I do. Then I turn the drive off and back on, and all is OK. If the first operation I do after booting is a backup TO tape, it goes fine with no problems. But then when I try to do a restore from tape, I still get the above error. I've updated the drive's firmware to what I believe to be the latest (28388-XXX V5.AQ). Right now I have the drive in an external enclosure to test it. I was going to mount it internally in the MV3100, but if I have to power the drive down to make it work, then internal mounting is not possible. Could it be a SCSI termination problem? The drive works flawlessly on my PC. Thanks, - Bob

23 years, 9 months

IMSAI News?

by r.stek＠snet.net

Bob Shannon - Could you expand on your comments about non-s-100? According to the website, it has a 10 slot S-100 MB, and "The IMSAI SERIES TWO utilizes the powerhouse Zilog Z8S180 microprocessor and provides a complete system on an IEEE-696 compatible S-100 board" I am somewhat interested in the machine, but not if there is NO chance of using some of my other S-100 boards in it. Bob Stek Saver of Lost Sols

23 years, 9 months

Hello?

by foo＠siconic.com

Is the list still down? Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 9 months

I hate Radio Shack

by DAW＠yalepress3.unipress.yale.edu

> From: Kris Kirby > > .... > I play bass, and lacking a good amp, I process my music through a > compressor, mixer, and EQ before sending it to a $125 50Wx2 Aiwa reciever. > That Aiwa drives two Sony bookshelf speakers (8" W, 12" T, 10" D) and does > a much better job of reproducing my bass than the 10W amp's own 8" > speaker. > > Then again, that setup doesn't compare to my father's Ampeg BA-115. That's > a 100W (Class-A finals) amp with a 15" speaker. It *will* rattle the > walls. (But then again, houses aren't as thick as they used to be, nor use > as much material.) > > -- > Well, my Hamer 5 string bass does quite well through the Peavey head, and into a homemade 4 x 12" speaker cabinet. Yeah they're some old generic 12" woofers, but they do 'boom' well, for now... :) -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1 - Darwin Kernel Version 5 Running since 01/22/2002 without a crash

23 years, 9 months

UCSD P System (was: Why is it that ...

by milneQDELETETHECAPITALSQ＠speed.net

> > At 06:07 PM 11/29/00 -0800, you wrote: > > >... > > >And it really didn't make PC-DOS look good. I've put a screen shot > > >of the UCSD P-system file manager prompt at: > > >http://setiathome.ssl.berkeley.edu/~korpela/gif/filer.gif. This is NOT the UCSD p-System filer, it's one belonging to a derived version of it that Apple briefly used on the Apple II. To give you a little context, this was version II of the p-System (the Roman numerals denoted architecture versions). The one released by SofTech Microsystems, on the IBM and the Sage and many others, was version IV, and it was a major overhaul. (Status of segments regularised, almost no limit on the number of segments in a system, all units swappable, dynamic linking, instruction set even more compact than before, procedural parameters, conformant arrays, semaphores, processes, etc. etc.) Including using 80 columns on the screens! (Actually you could change that in SYSTEM.CONFIG if you needed to, as seems clearly to have been done with this example). The filer used full names in its menus when it had the screen width to do so. Which was most or all of the time after those very early screens, unless, as I say, you did something to SYSTEM.CONFIG . As for making DOS look good, it made it look dreadful. I still remember the pain of migrating to Turbo Pascal, which was the BEST that DOS had to offer. Tiny file names, NO file typing (file extensions are NOT file types), terribly slow floppies, file volumes WITHOUT NAMES (which continues to this day), every program needing all its code linked into it statically, hence several copies of the same code on the same floppy -- etc etc. (DOS's only advantages: more flexible number of entries in a directory, and borrowing a poor man's version of directory trees from UNIX. The p-System only allowed 77 entries in a directory -- that was from a time when the DEC PDP-11 was popular -- and had only 1 level of "subdirectory", which was an actual subvolume file, of fixed size. And DOS was to acquire networking, whereas work on the p-System seems to have suspended before that could happen.) Oh, and the p-System had powerful wildcards, including use for mass name changes. DOS's wildcards were always weaker, and buggy. And I really did like being able to compile on a 68000 machine and run the compiled code on an 8086. Much faster turnaround time. (I once did a project where we were supposed to use the then-Microsoft Pascal on XT's for compiling -- all in native code of course. We stayed in UCSD Pascal and compiled within the p-System because it was FASTER!) > > >You may remember what those letters stand for, but I don't. > > ... > > > > For those not wanting to chase the link, it says: > > > > Filer: G, S, N, L, R, C, T, D, Q [1.1] > > > > Don't you remember? This was the security mechanism. > > You had to play a game of hangman and win before you > > could run the compiler. The person above obviously doesn't > > know the key to hangman is the vowels. I trust this misimpression is now corrected. > Hmm.... my versions show the menu as something like > > G(et, S(ave, N(ew, L(dir, R(en, C(hng, T(rans, D(ate, Q(uit > > but there are more options on an 80-column screen. > A. Milne

23 years, 9 months

PET and Magic Sac+

by foo＠siconic.com

I found two interesting items today. One is a PET 2001-8. It has the regular keyboard. Inside was an "expandaram" board that added additional RAM and some peripheral slots for the PET. The cards plugged in looked a lot like Apple ][ cards in their form factor but I assume this is some proprietary bus. Anyone have info on this? Also, found a little module that apparently plugs somewhere into an Atari ST. It's called the Magic Sac+ and on it it says "Turns your Atari into a Mac". Anyone ever use one of these? Where on the ST would this plug in to? Or is it for the Mega ST perhaps? Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 9 months

"Windows V1.0"

by healyzh＠aracnet.com

> Zenith changed their software packaging a few times over the years. > > This is the same packaging as what I have on OS/2 1.0, and MS-DOS > 3.3+. > > Consequently, looking back at the calendar, I think that > it's far more likely that this is Windows 2.0 or 2.1. It's not much help, but the first Z248 that we recieved had MS-DOS 3.x and Windows 1.0x floppies included with it. I've never seen a copy of Windows 2.x, however, oddly enough I recently found a shrinkwrapped copy of Windows 1.0 in the trash! On a vaguely interesting Windows 1.x note, the PC version of the game "Balance of Power" included just enough of Windows 1.x to run the game! It was the only use I ever had for Windows 1.x :^) Zane

23 years, 9 months

No IMSAI on ebay

by bpope＠wordstock.com

And thusly Richard Erlacher spake: > > Yeah ... my computer is apparently so fast that it's outrunning time again ... > <sigh> ... now if I could just get the stock market quotations for tomorrow > ... > > Actually, the motherboard I put in the temporary Netware 3.11 server I'm using > is not y2K-compliant, nor is the OS, so it has to be reminded from time to > time what year this is. You notice it doesn't know what day it is either ... > How are the messages archived? Bryan

23 years, 9 months

Sharp PC-5000 (early laptop circa 1983) for sale

by foo＠siconic.com

I'm selling a Sharp PC-5000 that is new in the box. The Sharp PC-5000 was one of the first clam-shell portables circa 1983 (the GRiD Compass and the Gavilan were it's contemporaries, as well as another one from Australia, called the DuMont or something). This is an awesome piece for any collection, especially those who collect portables and early laptops. They don't get earlier than this, and certainly not new, in the box. Pictures: The computer http://siconic.com/crap/sharp5000.jpg The box http://siconic.com/crap/sharp_box.jpg The manual http://siconic.com/crap/Sharp_us_g.jpg You also get a bubble memory module (sealed, new) http://siconic.com/crap/Sharp_Bm_box.jpg Best offer over $250 by Friday (June 17th) takes it. If there are no takers here, it goes to online auction. I accept PayPal preferably, check or money order will suffice if sent promptly. You, of course, pay all shipping charges. Please reply to <sellam(a)vintage.org> Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 9 months

Update on finds

by llstelck＠cox.net

I am looking for a Gulton TR-711 Single Channel recorder. Do you know where I can find one? Larry

23 years, 9 months

RF output DOES NOT equal Composite!!!

by acme_ent＠bellsouth.net

> > Cable and Timex are the same for channels 2 through 13 (It's called > > "VHS"). Connect the Timex and tune the TV or VCR to channel 2 or 3. > > VHS? Over here, VHS (Video Home System, I believe) is a popular format > for domestic video tapes, and is nothing to do with RF interfaces. > > -tony A typo, no doubt he means VHF. Glen 0/0

23 years, 9 months

RF output DOES NOT equal Composite!!!!

by acme_ent＠bellsouth.net

> From: Fred Cisin (XenoSoft) <cisin(a)xenosoft.com> > On Sun, 16 Jun 2002, Glen Goodwin wrote: > > No, but he could tap the composite signal off of the Timex pcb a feed a > > composite monitor with it. > > I think that somebody who doesn't know the difference between RF and > composite, should learn that FIRST. Granted, but the difference was well explained in posts by others. > Then get or make the appropriate cable or adapter to connect the > unmodified unit and confirm that it works, BEFORE making amateur > modifications. The leads carrying the composite signal are bare, and exposed. A pair of clip leads is all that's required to gain access to that signal. > THEN, he should make the mods and connect it to a composite monitor. Sure, but if he's having trouble finding a modern TV with a tuner that "likes" the TS1000 (most modern TVs don't), then using clip leads to grab the signal would at least verify functionality of the computer. Bearing in mind that the TS1000 has been described as "common as cockroaches" (Sellam Ismael) and "an educational toy" (Richard Erlacher), plus the fact that the ZX81 was originally sold as a kit and zillions of them were assembled by schoolchildren, I think my advice was reasonably appropriate. Feeling grumpy today, Fred? ;>) Glen 0/0

23 years, 9 months

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