test-drb March 2000

test-drb@ccmp.vtda.org

150 participants
515 discussions

by ethan_dicks＠yahoo.com

At the Hara Arena in Dayton, there are three events per year that relate to this list: the Hamfest in May and the Computerfest in March and August. I only went Sunday this year as opposed to my traditional Saturday. Since I didn't go for modern PC parts, I found the selection to be sparser than ever. Scattered throughout the back rooms there were the piles of $3 to $5 boards of various vintages. I did manage to get a pair of DEC-Tulip-chipset 10/100 cards for $3 each and a wad of Microchannel boards (Ethernet and SCSI) for someone else in a $15 "all you can stuff bag". Besides a few cards, the only interesting thing I picked up was an Apple QuickTake 150 digital camera with external battery pack and PSU for $35. One drawback: it came with a PC cable (DIN-8 to DE-9) and I only have the Mac software. The Mac cable is typically grey with an icon molded into both ends of a pair of arrows pointing opposite directions and a stretched "S" line between them indicating that it's a crossover cable. I do have the pinouts for the camera, but if I were to make a cable, I'm not sure what all the matchups are for RS-422. The Apple Technote pages show how to make a PC cable, but that's the one I already have. So... does anyone out there have a Mac "null-modem" cable they'd like to get rid of? Alternately, does anyone have the PC software? It's for Win3.1, but at least I'd be able to dump the camera. Thanks, -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

24 years, 4 months

Compact QBus Systems (Was re: Los Angeles: Commodore PET 8032's...)

by dburrows＠netpath.net

><The BA11-MA's supply looks to have a smaller footprint than the BA11-V. As ><best as I can tell from the fiche. I do know the -MA's are physically clos ><to a dual TU58EX. At most a couple inches larger. > >The footprint of the MA has to be larger or its taller. The quad backplane >is the size of the BA11VA! If you have the quad wide backplane then the >power supply will cube out the BA11-VA case. I'm looking at the VA as I >write. and the dual wide backplane fills half the case and the PS is the >other half. The H780 supply is about 3 inches wide IIRC and mounts beside the card cage. That would make it a couple inches wider than the TU58EX. Dan

24 years, 4 months

Made the Paper

by jrkeys＠concentric.net

The local Saint Paul Pioneer Press is running a story about my computer collection in this Monday's Tech Section of the paper. I spent two parts of two days with the reporter and another day getting my picture taken with a few items from the collection. I will try and scan it in and put it on my web site as soon as I get it up. Had a very good weekend and will writing up my finds on Monday.

24 years, 4 months

Don't forget to check the manufacturers when you need docs!

by xds_sigma7＠hotmail.com

Hi, Well for what it's worth, IBM still offers a bunch of random ancient manuals through the POS (publication ordering system), at http://www.elink.ibmlink.ibm.com/public/applications/publications/cgibin/pb… That's one nasty address, isn't it? ;p Anyway, I was searching around in there, and among other things, I ordered "IBM 360 model 67 functional characteristics" (GA27-2719). I'm going to call other vendors when I have time, I wanna see if I can get some 470 manuals from Amdahl, for instance. Unfortunately, I can't find the rest of the docs I need for my 8100's or for DPPX/SP, odd that I can't get manuals less than 20 years old but can get 360 manuals... Also, I know this will interest some of the list; assorted card punch manuals are available too. Will J ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

24 years, 4 months

Compact QBus Systems (Was re: Los Angeles: Commodore PET 8032's...)

by allisonp＠world.std.com

<The BA11-MA's supply looks to have a smaller footprint than the BA11-V. As <best as I can tell from the fiche. I do know the -MA's are physically clos <to a dual TU58EX. At most a couple inches larger. The footprint of the MA has to be larger or its taller. The quad backplane is the size of the BA11VA! If you have the quad wide backplane then the power supply will cube out the BA11-VA case. I'm looking at the VA as I write. and the dual wide backplane fills half the case and the PS is the other half. Allison

24 years, 4 months

Compact QBus Systems (Was re: Los Angeles: Commodore PET 8032's...)

by allisonp＠world.std.com

ALSO, the unit is VERY under powered. The DEC specs say only 16 amps <> on the 5 volts which also includes the video interface and the AVO optio <> if you want a full screen 132 character display. I suggest that if you u <> a Quad 11/73 with the RQDX3, you are probably OK. But not much else. < <I no longer need 132 columns to be fulfilled, so the AVO can be omitted. The AVO option really doesn't draw that much power and in the overall scheme it's far from enough. <I'd be attempting a dual 11/73, NS 256Kb, Sigma DLV11, and CMD 220 TM SCSI. <that doesn't work, I'll try taking out the DL and memory and using an MXV11 <though I recall those only have 32Kb or 128kb, which would make it pretty <difficult to run RSTS/E. That should work but the disks will have to be in their own box with their own power. There isn't enough power there for most disks. <Good advice for _any_ qbus system. I learned that the hard way, running 4- <SCSI devices (2 sets mirrored) in a BA23 chassis, and wondering about the <mysterious lockups. External drive chassis eliminated those, though cable <lengths became very critical. I'd limit that comment to ba23. My BA11S 11/73 has a full bus and powers floppy and two RD52s off a custom harness. <What I'm really hoping for is what was I think called a BA23-SE or BA11-SE <'twas a desktop 4-slot enclosure, maybe even 4x2? You thinking of BA11-VA, dual width by four slots, 4"x13x12 roughly. That would work but you still need an external disk box. I have several of those with 11/2, 11/23 cpus. The larger of them is 11/23, 256k, dlv11j, MRV11B(tu58 boot). There never was a ba23SE that small as the BA23 was one size (about 5 different backplane and front button combos. Allison

24 years, 4 months

Some old documentation available.

by go＠ao.com

A friend was cleaning out his garage this weekend and came up with a few boxes of manuals (no software, alas) that may be of some interest here. The manuals are free (you pay postage) but I would like to entertain trades for other documentation, where possible. Of course, I'll simply accept "karma points" for later use if you don't have anything tasty right now <g> (but I do have a good memory...) Contact me off-list to make arrangements. First-come first served. Decision of the judges is final. No refunds. Some segments may be missing. The list can be found at: http://www.ao.com/~go/doclist.txt Briefly the list includes a set of RT-11 V5 orange binders, some VT100 docs, some Emulex docs, some TSX-11 manuals and some miscellany. (Miscellany includes a "service manual" for an Osborne computer - I *think* Osborne 1.) As I said, there is ONLY documentation - no software (I guess I was too late in asking...) But at least these got saved. If you have trouble accessing this site, let me know and I'll email a copy of the two lists. I've also posted my "want list" under http://www.ao.com/~go/wantlist.txt -Gary

24 years, 4 months

Compact QBus Systems (Was re: Los Angeles: Commodore PET 8032's...)

by dburrows＠netpath.net

>> > I think what you are looking for is the BA11-MA. Desktop 4 slot Qbus the >> > same approx. size as a dual TU58. >> >> I thought that was the BA11-VA? That's what mine say on them anyway, > >Yes, I thought it was the BA11-V as well. > >> and yeah they look very much like a TU58, but with a 4x2 18-bit backplane. OK you got my curiosity up as I was going by my memory. I just looked both the BA11-V and the BA11-MA up in the microfiche as I sold the last BA11-MA I had 6 to 9 months ago. The -MA is a quad wide, 4 slot card cage (H9270A backplane with the H780A power supply) -MA is 115v and -MB is 230v The other variants are -ME 115v, -MF 230v, -MH 115v w/ no logo, -MJ 230v w/ no logo. The BA11-V is dual wide 4 slot card cage with the H9281BA backplane. I have not had one of these but I have had several of the -MA's. The BA11-MA's supply looks to have a smaller footprint than the BA11-V. As best as I can tell from the fiche. I do know the -MA's are physically close to a dual TU58EX. At most a couple inches larger. Dan

24 years, 4 months

Compact QBus Systems (Was re: Los Angeles: Commodore PET 8032's...)

by dburrows＠netpath.net

>I'd be attempting a dual 11/73, NS 256Kb, Sigma DLV11, and CMD 220 TM SCSI. If >that doesn't work, I'll try taking out the DL and memory and using an MXV11, >though I recall those only have 32Kb or 128kb, which would make it pretty >difficult to run RSTS/E. The MXV11 has 8K for the -AA and 32K for the -AC. >What I'm really hoping for is what was I think called a BA23-SE or BA11-SE, >'twas a desktop 4-slot enclosure, maybe even 4x2? I think what you are looking for is the BA11-MA. Desktop 4 slot Qbus the same approx. size as a dual TU58. Dan

24 years, 4 months

3rd party board identification

by blergh＠dds.nl

Hello fellow-subscribers, I have some 3rd party boards around that I would love to have identified, these are probably all pulled from PDP11 systems. Versatec Controller 122, full metal handle, one 3M connector marked "differential" (HEX) Dataram 40871 handwritten: Assy: 65123 S/N: 107, two white handles, one 3M connector (QUAD) ACT 10198-0 or 10197-0, (c) 1983, two white handles, two 3M connectors, one Z80A (QUAD, most likely UNIBUS) Thanks in advance, Erik.

24 years, 4 months

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test-drb March 2000