test-drb January 2005

test-drb@ccmp.vtda.org

254 participants
551 discussions

by dave04a＠dunfield.com

Hi Guys, Still happily rooting through my big pile of ju.. er, "Fine high quality vintage material". Hit upon a big box full of assorted parts, ICs, etc. found a couple of white-ceramic 8080s, some keyboard encoders (also white-ceramic), lots of ROMs, RAMs (some very old), lots of interface logic, some disk controllers (including several 1793s which I needed but never did get around to ordering), and lots of other oddball stuff, including: about a dozen interesting looking chips, which are labled: MK4116E-3 This appear to be a 9-pin DIP ceramic carrier with two smaller chips mounted on-top - each of the smaller chips has the MK4116E-3 designation. The smaller chips also have 9 pins, however they are not DIP but rather in a 4, 5, 4, 5 arrangement all the way around the device. Anyone recognize these? My guess is some sort of RAM (dynamic)? Clearly not the same as a standard 4116 DRAM. Don't recall having seen these before (although a fair bit of trivia has drained away from the memory array over the years) - anyone know what they were used in? Still inventorying the documenation but I should have a complete list soon. Lots of S-100 hardware, NorthStar software and TRS-80 documents. Did find an original of David Ahl's "101 Basic Computer Games" published by DEC in 1973 (this one is from the 1974 2nd printing). 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

Macintosh Performa 405

by jim.isbell＠gmail.com

Is this thing worth anything?? -- Jim Isbell W5JAI UltraVan #257 CAL - 27 #221

19 years, 7 months

DEC version of "101 Basic Computer Games"

by dave04a＠dunfield.com

At 16:35 17/01/2005 -0500, you wrote: >> David Ahl's "101 Basic Computer Games" published by DEC >> in 1973 (this one is from the 1974 2nd printing). > >Does it have a DEC Order Number on it? Is it EB-04873-76? > >Ahl's DECUS submissions of these games are online at > > http://pdp-11.trailing-edge.com/rsts11/rsts-11-013/index.html > http://pdp-11.trailing-edge.com/rsts11/rsts-11-014/index.html > >Tim. I can't find a DEC order number - the cover has the little blocks "digital" logo in the lower right hand corner (as does the spine), and inside it says: 1st printing -- July 1973 2nd printing -- April 1974 Copyright (C) 1973, 1974 by: Digital Equipment Corporation Maynard, Massachusetts 01754 But there is also a "box" which says: Additional copies of "101 BASIC Computer Games" are available for $7.50 plus .75 postage from: Creative Computing P.O. Box 789-M Morristown, N. J. 07960 So it doesn't look as though DEC actually offered the book through it's own sales channels - at least not in 1974. -- anyone know for sure? 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

DEC Consultant's Reference Guide

by classiccmp＠crash.com

[ I've been trying to organize the backlog of cctalk ] [ mail sitting unread on my server... ] Way back in September, Dan Veeneman wrote: > At a recent hamfest I picked up two volumes of > Digital Equipment Corporation's Consultant's Reference > Guide. > Does anyone have a full set of these? I might. I picked up a lot of them along with RT-11 docs when I picked up a VT103 and DSD disk/tape box many years ago. However some of the manuals fell victim to a large basement flood a few years back - over 15" of water in that section, when we got about 5" in 5 hours early one March. Frozen ground doesn't absorb much water, and I had *just* moved the home datacenter down there after watching for flooding for a couple years. Figures. Haven't had any flooding to speak of before or since. I haven't gone through them since the crisis, and I'm sorry to say some may have molded up so bad before I could deal with them that they may have been pitched. I'm gearing up for a cross-continent move, so don't look for any news on this other than an inventory of what's left as it gets packed. There was a bunch more stuff, going from memory, than the company history. In particular it included system configurations from the period in question. I recall seeing the first generation of VAXen, pdp-11s, and a number of DECSYSTEMs in there, along with software and whatnot. --Steve.

19 years, 7 months

Nickel Metal Hydrids

by shoppa_classiccmp＠trailing-edge.com

> Jameco still shows a robust selection of NiCad cells and batteries. It's true that they have a lot listed, although I'm not sure if I'd apply the term "robust" when they don't name any manufacturers. I suppose that like any technology it gets dropped first by the big-name distributors, then the catalog houses, then the grey-market distributors like Jameco, then the surplus places. I may be anal about it but I've always been leery of buyng grey-market consumables like batteries. I guess I'll just have to lower my standards! Tim.

19 years, 7 months

Nickel Metal Hydrids

by dwight.elvey＠amd.com

Hi Jameco still shows a robust selection of NiCad cells and batteries. Dwight >From: shoppa_classiccmp(a)trailing-edge.com > >> Each battery technology has its own charging rules... > >That actually makes me feel better for taking the time to hunt down >real NiCads for my scopemeter. Everywhere I looked I found that >the NiCads had been discontinued, eventually I found a place >that still had the right physical size in stock, but even then they >only had a small quantity left and they told me that they weren't gonna >be getting any more. > >Tim. >

19 years, 7 months

Anyone recognize MK4116E ?

by dave04a＠dunfield.com

At 16:33 17/01/2005 -0500, you wrote: >> labled: MK4116E-3 >> This appear to be a 9-pin DIP ceramic carrie > >9 pins? Surely you mean 16. Actually - I ment to say 18 --- But I only counted one side, and my brain failed to perform the x2 for DIP between my eyes and fingers ... Thats why I said these are obviously not standard 4116 DRAM's - they are 18 pin devices! 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

Seiko RC-1000 wrist terminal software req?

by saanders＠bellsouth.net

Fred and Dave, I found this thread via an internet search. Did either of you find a copy of the IBM/MS-DOS software for the Seiko RC-1000 wrist terminal? I'm trying to revive mine but my computer can't read the floppy (I have a good 5.25 disk drive, the computer just can't read that particular disk.) Regards, Stuart Anderson Madison, Alabama, USA On Mon, 13 Oct 2003, Dave Mitton wrote: > Does anyone have a copy of the host system software for the circa 1984 > Seiko RC-1000 watch terminal? > > I thought I had a copy that ran on DOS as a character mode app, but I > cannot find the original diskette. The original PC I used is long gone. I *used* to have one of those (actually, just threw out my broken watch a couple of weeks ago) but I do seem to remember I still have the box... that might still have the cable and the floppies. Will look for ya :) --f -- Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist Visit the VAXlab Project at http://www.pdp11.nl/VAXlab/ Visit the Archives at http://www.pdp11.nl/ Email: waltje at pdp11.nl <http://www.classiccmp.org/mailman/listinfo/cctalk> BUSSUM, THE NETHERLANDS / Sunnyvale, CA, USA

19 years, 7 months

Nickel Metal Hydrids

by dwight.elvey＠amd.com

Hi I thought I'd pass on some info about these batteries. I received a laptop with a "dead" battery. The voltage as read from a meter was "0" volts. I mean dead! I first stuck it into the laptop but quickly noticed the smell of hot resistors ( bad idea ). I then connected it to a bench supply running at about 200ma. I watched the level of the voltage until it gradually came up to about 12v ( 14.4v pack ). I placed it back in the laptop and allowed it to charge until it indicated a full charge. I ran it down once to the battery low level and repeated the charge. That was last night. Leaving it for 8 hours, it seems to be maintaining its charge. Moral of the story, don't give up on these batteries. They are remarkably tough. Most NiCads batteries would not recover from such a level. Dwight

19 years, 7 months

On a tangential note concerning Panix and old Internet ISPs

by brain＠jbrain.com

//.: "Panix <http://www.panix.net/>, the oldest commercial Internet provider in New York, had its domain name 'panix.com' hijacked by persons unknown. The main effect on users is that mail sent to panix's customers is being routed to a bogus mail server run by the hijackers." / -- Jim Brain, Brain Innovations brain(a)jbrain.com http://www.jbrain.com Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times!

19 years, 7 months

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test-drb January 2005