test-drb May 2018

test-drb@ccmp.vtda.org

155 participants
147 discussions

Kaypro 2000 charging

by r_a_feldman＠hotmail.com

Message: 20 Date: Wed, 16 May 2018 20:40:04 -0700 (PDT) From: Fred Cisin <cisin at xenosoft.com> <snip> >I remember an interview with Lee Felsenstein, in which he was asked how >much a battery power unit for the upcoming Osborne would weigh. He >reponded that the external DC connection was currently for use with a car. >(Lee was driving a Honda Accord). Sorry for the late reply, but I was travelling and needed to dig out the unit. The lead-acid battery for the Osborne Powr-Pak(tm) I own weighs 3.59 kg. Bob

6 years, 7 months

Original CAD code in the wild?

by jnc＠mercury.lcs.mit.edu

>From: Al Kossow > NASTRAN is available That's a finite element modeling code, isn't it? (I guess it all depends on what the OP meant by 'CAD'...) Noel

6 years, 7 months

Original CAD code in the wild?

by jnc＠mercury.lcs.mit.edu

> From: Randy Dawson > For a while I have collected bits of legacy CAD > ... > My question is, did any of the source code for these systems > .. ever make it out Well, not quite what you're asking about, I think (it sounds like you're interested in MechE CAD, not EE, even though SPICE was mentioned), but the original Stanford SUDS is still available, I think. > I know we are primarily a hardware group here, but where is the > interest in the software discussed? Is that a plaint ('how come we don't do software'), or a query ('where is software discussed')? If the latter, it tends to be system specific, from what I've seen - e.g. there's 'TUHS' for Unix, "its-hackers" for ITS, etc. Noel

6 years, 7 months

MS11 M8110/M8120 controller card differences

by jnc＠mercury.lcs.mit.edu

> From: Bob Smith > 8110 for MOS memory, and 8120 for bipolar memory is what field guyde > list says. Well, the early bipolar MS11-C (1K boards) used the M8110 during early production (see e.g. DEC-11-HMSAA-D-D, pg. 1-1), and apparently then switched over to the M8120. I've only seen the later MS11-A bipolar (4K boards - dunno why it's in reverse alpha order) associated with the M8120. > I think the there was some change from special select parts and a move > to schottky 74S series around the time of the 45/50 days. I wondered that, but the MS11-C and MS11-A are the same speed (300 nsec); although maybe the M8110 was a bit marginal, and component changes in the M8120 made it more robust? I guess I'll have to do it the hard way, and compare the ICs... :-( > 11/40 was faster than 11/35, but if you changed a wire, they were the > same. I've heard of other manufacturers doing that, but I thought the /35 and /40 were identical, except for the number on the console inlay, and the sales channel? Noel

6 years, 7 months

Happy Armed Forces Day 2018

by bygg＠cafax.se

Fred Cisin <cisin at xenosoft.com> wrote: > d) The TRULY IMPORTANT issues will never be solved through the use of > armed forces: > big-endian V little-endian > vi v emacs > DEC V IBM > CDC V IBM > TRS80 V Apple > Atari V Commodore > IBM V Apple > Android V IOS > Linux V Windoze V MacOS > number of buttons on a mouse On the other hand, the fight against the X86 architecture might be done with the help of arm forces... --Johnny /\_/\ ( *.* ) > ^ <

6 years, 7 months

micro pdp11/83 power supply

by mail＠waldemar-brodkorb.de

Hi, I started to revive an old Micro PDP11/83 I have for over 12 years now. It is fully assembled and last time I tried to start the machine it some kind of started. My biggest issue at the moment is the power supply. After the machine is running for a while, let's say 10 minutes and then when I poweroff, the power supply starts producing a lot of dense smoke. The smell is very penetrant. What can I do with the power supply? Do I need to exchange it completely or just parts of it? At the moment I removed it from the case like described here: http://www.bitsavers.org/pdf/dec/pdp11/microPDP11/EK-MIC11-TM-002_MicroPDP1… Thanks in advance for any starting hints, Waldemar

6 years, 7 months

aox double time 16 - Any info?

by alexandre.tabajara＠gmail.com

Greetings! A friend of mine got a aox double time 16 board into a mac SE Unfortunately it isn't working (not accelerating the mac) and we're unable to find any info on it Any helpers? :o) thanks Alexandre

6 years, 7 months

HP 2100 prototyping card

by aek＠bitsavers.org

https://www.ebay.com/itm/163039837440 obviously NOT used..

6 years, 7 months

Happy Armed Forces Day 2018

by couryhouse＠aol.com

Happy Armed Forces Day 2018 Saturday, May 19 ... Do not forget our brave men and women! Ed# WWW,SMECC,org ? ?KF7RWW

6 years, 7 months

PING JAY sent you a really weird DG system pic yesterday may be in ur bad msg folder check it out - ed#

by couryhouse＠aol.com

PING JAY sent you a really weird DG system pic yesterday may be in ur bad msg folder check it out - ed#

6 years, 7 months

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test-drb May 2018