test-drb June 2000

test-drb@ccmp.vtda.org

160 participants
580 discussions

How do you finance/afford your computer collection?

by mcguire＠neurotica.com

On June 22, Sellam Ismail wrote: > On Thu, 22 Jun 2000, Dave McGuire wrote: > > > You have an Intel box? Eeew. > > It's OK. It's running Linux. Ahh. *whew* -Dave McGuire

24 years, 1 month

Should I add a "Micro" PDP11/73 to the Herd?

by CLASSICCMP＠trailing-edge.com

>At 12:40 PM 6/22/00 -0400, you wrote: >>It isn't, but Mentec will soon (I hope) have a hobbyist licensing program for >>RT-11, RSX-11M, RSX-11M+, and RSTS/E. Watch the "Hobbyist licensing" >>link on their "PDP-11"/"legacy systems" webpage at >> http://www.mentec.com/ >> Tim Shoppa Email: shoppa(a)trailing-edge.com >If they do this then the market for PDP-11's will go up by a large amount. >--Chuck IMHO it's not a matter of "If" but "When". There are some pots remaining to be stirred but the brew is *almost* done. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

24 years, 1 month

NCR model 3401 class 5451

by mcguire＠neurotica.com

On June 21, Tony Duell wrote: > > > ps margin: +5%/normal/-5% > > > > What's a ps margin switch for? > > Power Supply Margin testing, I guess. Basically it runs the PSU (+5V > line, probably) at 5% over or under the 'right' value. If you have an > intermittant fault to trace, this may make it appear permanently so you > can track it down. Similarly, a machine that fails on either of the > margin settings is likely to _become_ unreliable even at the normal > voltage, so you can catch errors during preventive maintenance. Interestingly, both the Cray J90 and the YMP-EL (and possibly other models as well) have +- margin switches for their power regulators accessible on their front panels. -Dave McGuire

24 years, 1 month

Thinker Toys (was: KFC (was: Mark your calendars for VCF 4.0

by dhquebbeman＠theestopinalgroup.com

> BTW, I also have for sale a post-namechange machine from a company once > known as "Thinker Toys". $20 with local pickup for machine plus printer > plus terminal (missing keyboard). $30 for machine by itself. > HINT: KFC and Thinker Toys were both in Berkeley, and moved > south once they became successful. That would be Morrow Designs... George should've kept the Thinker Toys thing, and put a hit out on the Tinker Toys lawyers. I am the proud owner of two Thinker Toys products, the Wunderbus, and the EconoRAM IV (hope that's the right model, this was one of those really EARLY dynamic RAM boards; the ceramic gold-topped versions of these chips worked fine, the but the plastic ones had trouble forgetting things when they got hit by cosmic rays). -dq

24 years, 1 month

Should I add a "Micro" PDP11/73 to the Herd?

by CLASSICCMP＠trailing-edge.com

>On Thu, Jun 22, 2000 at 05:51:17PM +0200, Frederik Meerwaldt wrote: >> Hi! >> [..] >> > Should I rescue this machine? What OS do I need to acquire for it? >> Sure!!! I don't know if 4.2BSD or 4.3BSD run on a PDP11/73, but in fact >> RT-11 does. It is now Freeware. >> Ciao, >> Freddy > >Since when is/was RT-11 freeware? It isn't, but Mentec will soon (I hope) have a hobbyist licensing program for RT-11, RSX-11M, RSX-11M+, and RSTS/E. Watch the "Hobbyist licensing" link on their "PDP-11"/"legacy systems" webpage at http://www.mentec.com/ > One of the hardest things about collecting >PDP-11s is getting OS licenses for anything but the older versions of >UNIX... 2.11BSD is the newest version and getting a hobbyist license for it is now easier than ever. See http://minnie.cs.adfa.oz.au/PUPS/ for the SCO license deal (now free). -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology WWW: http://www.trailing-edge.com/ 7328 Bradley Blvd Voice: 301-767-5917 Bethesda, MD, USA 20817 Fax: 301-767-5927

24 years, 1 month

VT100's and RX01 in Kansas City

by mmcfadden＠cmh.edu

> In my wanderings I just came across 2 VT100's, one of which doesn't power > up the other I can't get to to test yet. I haven't found the keyboards. > I also came across a "rack mountable" RX01. Basically a single 8 inch > disk drive is just below on the left side of a 23 inch wide 3 inch high > controller box. If there is any interest they will probably take $5 for > the RX01 and $5 for both VT100's and I can arrange packing/shipping if you > pay for it. > VT100-AA case is yellowed with some scuffs. It seems to have both RS-232 > and 20ma connector on the back. RX01 has a 8 inch floppy diskette in it > labeled "VMS 4.7 boot floppy working copy". > > Mike > Wandering computer scrounger

24 years, 1 month

KFC (was: Mark your calendars for VCF 4.0

by allisonp＠world.std.com

>> > TRIVIA QUESTION: What name did "Kentucky Fried Computers" change its name >> > to? >Jim, I'm disappointed. You, of all nerds, should know the correct answer >is Northstar Horizon. It's time to start taking a daily dose of Ginko >Biloba :) Still wrong! It was not the NS* Horizon as the name change preceeds it by not less than two years. Keep in mind I have the NS* MDS-A Minifloppy I'd bought before the NS* in late 1976 and KFC had long since been forgotten. If memory serves KFC was a 6800 based machine. Allison

24 years, 1 month

by dhquebbeman＠theestopinalgroup.com

Ooops, sorry, was supposed to be private... > -----Original Message----- > From: Douglas Quebbeman [mailto:dhquebbeman@theestopinalgroup.com] > Sent: Thursday, June 22, 2000 9:03 AM > To: 'classiccmp(a)classiccmp.org' > Subject: RE: Yo > > > Steve- > > Any luck digging out that Prime stuff? > > -dq >

24 years, 1 month

by dhquebbeman＠theestopinalgroup.com

Steve- Any luck digging out that Prime stuff? -dq

24 years, 1 month

KFC (was: Mark your calendars for VCF 4.0

by dhquebbeman＠theestopinalgroup.com

> > > TRIVIA QUESTION: What name did "Kentucky Fried Computers" > > > change its name to? > > > (hint: I'm asking $100 with local pickup for one of their > > > post-namechange computers with the wood in good condition) > > Processor Technology? > No. > > Are you selling a SOL for $100? > Sorry. If I had one right now, I might. I'm still not certain anyone has answered this, so I'll try again... COuld it be a Scelbi? -dq p.s. not looking for a Sol, have a working one and two unfinished motherboards, one likely to go up on E-Bay soon, although I may solicit it for trade here first.

24 years, 1 month

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test-drb June 2000