test-drb April 2002

test-drb@ccmp.vtda.org

280 participants
1162 discussions

by mcguire＠neurotica.com

On April 8, Jeffrey Sharp wrote: > That last prophecy has fulfilled itself! I visited Owen Robertson while in > FW, and we powered up his 11/34. He showed me a few things -- how to load > RL01 packs, where the power switch was, etc. -- and we proceeded to play > with the machine. There are problems with the RSX-11M pack he has, so I > loaded up an XXDP+ pack. After printing and reading the help file, I > experimented and was able (after some trial and error) to -- drum roll, > please -- load UPD2 and create another bootable pack with XXDP+ on it! Kick ass!! :-) > It's too bad we didn't do this a week sooner. The scrappers had just > finished destroying what was a very nice PDP-11/60. I at least found and > took the unit numbers from the RK07 and RP0x drive. I weep for the PDP-11/60. I take it you "educated" said scrappers, and left them your number? -Dave -- Dave McGuire "I thought it would go quickly, St. Petersburg, FL that rubberized bottom..." -Sridhar

22 years, 3 months

Teleterminal "Fly Reader 232" Switch settings needed

by bill_r＠inetnebr.com

Does anyone happen to have the switch settings for a "Teleterminal FlyReader 232" tape reader? The one I have works at 1200-N-8-1, but I'd like to know if I can set it to 9600 so it's the same speed as the other serial stuff I've got hooked up to my IMSAI. -Bill Richman (bill_r(a)inetnebr.com) Web Page: http://incolor.inetnebr.com/bill_r Home of the COSMAC Elf Microcomputer Simulator, Fun with Molten Metal, Orphaned Robots, and Technological Oddities.

22 years, 3 months

Lisa 2 Video Problem

by Lee.Davison＠merlincommunications.com

>From the pic I'd put my money on the monitor PSU mains smothing cap being o/c. Lee. > Has anyone ever repaired a Lisa 2 with the following symptoms: A > distorted video image on the upper 1/3 of the screen? I'm the high > bidder on a Lisa 2 on ebay > > > > ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 3 months

need the use of a scanner with sheet feeder (near Seattle if possible)

by dquebbeman＠acm.org

> > Does anyone have one? I have borrowed two large manuals. > I'd like to scan them, as opposed to photocopying, but > it would have to be quick and reliable (so I can get > good results the first time and return the manuals > in good shape). I don't know what Al does, but CDC manuals have "taint", a small piece of paper that forms the outside edge of that center, long-oval-shaped hole. The taint gets torn by sheet feeders... so if you want to return them in the same condition as you borrwed them, I'd have to recommend against the sheet feeder. :(

22 years, 3 months

Need help with Jumpering Imsai SIO board

by caprio＠dcms.com

I have an Imsai SIO Rev 3 serial card. I have the docs but the last section of the manual may be missing. I've read the section on how to set the two jumpers for the baord address but I'm having trouble translating. Could someone who knows this subject please help me to figure out the address of this SIO card? Jumps on the baord are set like this: C7 (port Select 1) 1 16 2 ---- 15 3 14 4 ---- 13 5 12 6 ---- 11 7 ---- 10 8 9 D6 (port Select 0) 1 16 2 15 3 16 4 13 5 ---- 12 6 11 7 10 8 ---- 9 Here is the s-ction out of the manual: C7 A7 --+---------- 1 16 ------+---------| |___|>o--- 2 15 ______| | A6 --+---------- 3 14 ------+---------| |___|>o--- 4 13 ______| | A5 --+---------- 5 12 ------+---------| |___|>o--- 6 11 ______| | A4 --+---------- 7 10 ------+---------| |___|>o--- 8 9 ______| |---) | )o------- --- 1 16 ------+---------|---) --- 2 15 ______| | --- 3 14 ------+---------| --- 4 13 ______| | I/O --- 5 12 ------+---------| MM --- 6 11 ______| | MM --- 7 10 ------+---------| I/O --- 8 9 ______| | D6 OK, so I know that A7=0, A6=0, A5=0 and A4=1, It's not Memmory mapped IO so jumpers go on pins 5 and 6. So where are A3-A0, on D6?. I think the address is: A7 0 A6 0 A5 0 A4 1 A3? 0 A2? 0 A1? 1 A0? 1 and the answer is 013H ???? "The board address is selected by jumpers or a DIP switch in locattion C7 and D6. There are two cases for which this board may be jumpered: 1) to respond to Input/output instructions and 2) to respond to memory access instructions. The case of input/output instructions will be treated first. In selection location D6 pins 8 and 9 must be jumpered together and pins 5 and 12 must be jumbered together. The user must jumper socket C7 so when the desired I/O Port address appeas on the address lines, the inputs to the NAND gate from bits A4 through a7 are high. If, for instance, address bit 6 is desired to be a 0 when the board responds, then pins 4 and and 13 would be jumpered together. If address bit A6 was desired to be 1, then either pins 3 and 14 may be jumpered together or 3 and 13 may be jumpered together, since 13 and 14 are tied to the common address selection input. It is suggested, however, that when jumpers are being used, pins 3 and 13 be connected together to provide a easy visual indication of whether the address bit is a 1 or 0 since that will correspond to whether jumpers are slanted or straight across the jumper socket." ... Thanks for the help.

22 years, 3 months

Need Micro/RSX and PDP-11/53 help

by doc＠mdrconsult.com

Continuing saga of Friday nights haul: When I emailed Terry that I'd pick up the MicroVAX, and we made the arrangements, he told me, "By the way, as long as you haul off that rack, you're welcome to take the PDP-11 and the PDP-8." Naturally, I made that further concession.... The PDP-8/A is in pretty sorry shape, at first glance. It's on hold till I have time to go over it and figure out what's there and what it needs. Probably a couple of weeks. Anyway. the 11/53 is in good shape, inspected, cleaned, and back together. It has Micro/RSX installed on DU0, and not only is it Greek to me, but I've been Googling for 3 hours, and haven't found a coherent description or command reference. Moreover, I don't see any software at all available to run on Micro/RSX. Are RSX-11 utilities binary-compatible? Any suggestions as to a next step? Pointers at the Micro/RSX Users' Group would be handy. Doc

22 years, 3 months

need the use of a scanner with sheet feeder (near Seattle if possible)

by dpeschel＠eskimo.com

Does anyone have one? I have borrowed two large manuals. I'd like to scan them, as opposed to photocopying, but it would have to be quick and reliable (so I can get good results the first time and return the manuals in good shape). Thanks, -- Derek

22 years, 3 months

Shoddy Hardware (Was: Re: WW fixtures (was Re: "New" PDP-8))

by mythtech＠mac.com

> Well, I guess "confiscated" was the wrong term. My checked baggage > was checked, my ride dropped me and left, and my only option was to > leave it there or leave with it. So if Jim hadn't been on shift, I'd > have probably lost my light. > It _felt_ like confiscation, and I _was_ upset. The airport in New Orleans confiscated (yes, took away and kept, never to return) a mini stapler my father had in his laptop bag. This is one of those staplers that is about an inch long, holds 20 staples of that super mini, can't staple thru more than two sheets of paper, size. This was back in November, so everyone was a bit more paranoid. But he showed them it was just a stapler... and they still took it away as a "weapon". I would LOVE to see that happen.... take me to Cuba or I'll fail to break your skin with my mini shards of metal, in my lethal squeeze powered dispenser! Don't make me empty this thing onto my shoe... I'll do it... I'm just crazy enough! And if that doesn't scare you... I'll beat you with this airline pillow! Hell, you could do more damage by sitting in the exit row, and pulling the shiny red handle on the wall. -chris <http://www.mythtech.net>

22 years, 3 months

Lisa 2 Video Problem

by jrice＠texoma.net

Has anyone ever repaired a Lisa 2 with the following symptoms: A distorted video image on the upper 1/3 of the screen? I'm the high bidder on a Lisa 2 on ebay url: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2013387255&r=0&t=0&showT… If you look at the screen shots, the video screen is distorted very similar to what my compact macs do with cold solder joints on the analog board. I figure that it's either a similar problem, dirty contacts or bad caps on the board. Just wondering if anyone has seen similar symptoms. I think I can get a Lisa video board from a friend in DFW who has a cache of Lisa's in storage. The guy's Apple collection is awesome. He has several of absolutely every product Apple ever made including a lot of prototype stuff that was never publicly released. I usually don't attempt board level repair, but for a Lisa, I'll make an exception. I thought Tony might have done one before. Have you ever seen this one before Tony? I think a Lisa would fit in perfectly with my NeXT's, Sun's, Indy and BeBox. Thanks, James You mean you're supposed to read the manual first?

22 years, 3 months

Fw: Route 128 book

by geoff＠pkworks.com

This afternoon, while copying IBM 1620 manuals for Al Kossow's Bitsavers Project, I met Mr. Alan Earls. He is writing a book on Rt 128, as he explains below, and is looking for information. I have invited him to visit both the Rhode Island Computer Museum ( www.osfn.org/ricm ) and the RetroComputing Society of Rhode Island ( www.osfn.org/rcs ), and promised to forward his request for information to friends and colleagues. If you can help the fellow, either directly or by reference, please contact him. Clearly, any tech history writer looking for information on Clevite has done his homework! -----Original Message----- From: Alan Earls <alanearls(a)attbi.com> To: geoff(a)pkworks.com <geoff(a)pkworks.com> Date: Saturday, April 06, 2002 4:48 PM Subject: RE: Route 128 book Geoff, Nice to meet you and chat about "oldies" (Mailboxes, Etc. in Franklin). As I mentioned I'm finishing up (by May 1) a photo/history book about Route 128 and environs in Mass. from roughly the end of WW2 until the early 90s. This isn't a scholarly effort. Rather it is an attempt to provide a popular book that will capture representative images of the "dawn" of high tech -- the post war years with the expanded defense budgets and new electronic technology --- through to the recent past. I'm still trying to locate photos of people, places, and things associated with DG, Prime, Wang and many other companies. I would also love photos from the Multics project at MIT and some photos of the early area semiconductor companies: Clevite, Sylvania, Transitron, etc. Any suggestions would be greatly appreciated. Sincerely, Alan Earls 508 528 6930 PLEASE NOTE: Effective immediately, my email address is alanearls(a)attbi.com. Please be sure you update your files. Mail addressed to my "mediaone" address will no longer be delivered after Mar. 15, 2002.

22 years, 3 months

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test-drb April 2002