test-drb January 2015

test-drb@ccmp.vtda.org

175 participants
253 discussions

by mhs20165＠yahoo.com

google "instant input assembler" and you may find more information. the book was "16-bit microprocessor architecture" by Terry Dollhoff - written in 1979. google "16 bit microprocessor architecture" and you may find links. the book may be available on Amazon and other places. possibly interesting reference to the computer it was installed on at http://archive.org/stream/kilobaudmagazine-1979-07/Kilobaud_Microcomputing_… - look for "instant input" - they talk about the computer it came on. that company (Technico) has been out of business since sometime in the early 1980s.

9 years, 11 months

B & C Microsystems

by aek＠bitsavers.org

Was digging though storage this week and found a B&C Proteus. Did anyone save the contents of their BBS? I see I scanned the manual for the 1409 at some point, but I don't seem to have any other docs or software from them.

9 years, 11 months

DTSS Simulator BASIC Programming Contest - 2015 CoCoFEST

by computerdoc＠sc.rr.com

Hi Everyone! Here is a reminder that the Glenside Color Computer Club is holding a BASIC Programming Contest using the Dartmouth Time Sharing System Simulator honoring the Creation of the BASIC Computer Programming Language at the 2015 CoCoFEST this April 25-26, 2015 in Lombard, IL at the Heron Point Building. See the link below for details of the Contest and click on ?CoCoFEST? on the left for further details of the CoCoFEST itself. http://www.glensideccc.com/cocofest/events.shtml I?m looking forward to seeing you at the CoCoFEST! Kip Koon computerdoc at sc.rr.com http://www.cocopedia.com/wiki/index.php/Kip_Koon

9 years, 11 months

Novell NetDevice NAS?

by BHuntsman＠mail2.cu-portland.edu

Any ex-NetWare guys on here? Anyone ever see or hear of a product called Novell NetDevice NAS? Ever used it? Thanks! -Ben

9 years, 11 months

Old Computer Logs!

by jacob.ritorto＠gmail.com

I got one for my birthday: https://plus.google.com/104356262816556231009/posts/3GF1d8nQGQD

9 years, 11 months

olivetti programma 101 repair

by r_a_feldman＠hotmail.com

> Message: 16 >Date: Wed, 07 Jan 2015 15:21:07 -0800 >From: Chuck Guzis cclist at sydex.com >On 01/07/2015 02:41 PM, Simon Claessen wrote: <snip> >> Guitar wires are out. They are way to flexible. I opted for fosfor >> bronze wire, but could not find it in the shops in Amsterdam. Then I >> stubled upon a shop selling beads and stuff to make bracelets and >> earrings. They sell "memory wire", A very tough silver coated wire of >> 0.6mm. I have no idea what the alloy is, but the mechanical >> characteristics are not bad. > >Drop in to a good musical instrument repair shop. Flutes, for instance, >use phosphor bronze wire springs; clarinets tend to use stainless steel >springs; dulcimer wire is typically phosphor bronze. I've even used >harpsichord bronze wire to fashion pins to convert a SIMM to a SIPP. It >solders well. > >An instrument repair shop is also an excellent place to fine flat blue >steel springs. > >--Chuck A good model railroad hobby shop should also have phosphor bronze wire. It is used to model overhead wire for trolleys/trams. Bob

9 years, 11 months

Answer: Weekly Classic Computer Trivia Question (20150105)

by dpi＠dustyoldcomputers.com

As many of you noted it is a phrase that contains every letter in the English language alphabet called a pangram. I first encountered this phrase in high school typing class. For me it became computer related when I was watching the Teletype repair man work on the KSR-35 attached to a PDP-8 sometime in 1974 or 75. I am sure it was something like that for many of you. Doug Ingraham PDP-8 S/N 1175 On Sun, Jan 4, 2015 at 9:04 AM, Doug Ingraham <dpi at dustyoldcomputers.com> wrote: > Time for another trivia question. We will start off the year with an easy > one. This one is related to computers but not exclusive to computers. > > What is the significance of the phrase: > > The quick brown fox jumps over the lazy dog. > > No fair looking it up on the internet. > > Doug Ingraham > PDP-8 S/N 1175 >

9 years, 11 months

olivetti programma 101 repair

by bobvines00＠gmail.com

On Wed, 07 Jan 2015 23:41:59 +0100, Simon Claessen wrote: > > well, > > Good news always has some bad news as well. After careful examining of > the 952 (no, not 850...) pins, I found 52 broken ones. As they are made > of a gold plated springy metal wire, I needed to find a replacement. > Size: 0,5mm diameter. > > Guitar wires are out. They are way to flexible. I opted for fosfor > bronze wire, but could not find it in the shops in Amsterdam. Then I > stubled upon a shop selling beads and stuff to make bracelets and > earrings. They sell "memory wire", A very tough silver coated wire of > 0.6mm. I have no idea what the alloy is, but the mechanical > characteristics are not bad. > > The first clip I made fitted surprisingly good. now to find some time to > bend another 51... > > Oh well. > [snip] Simon, "Memory wire" is also known as Nitinol, a nickel-titanium alloy <http://en.wikipedia.org/wiki/Nickel_titanium>. The Wikipedia page might give you the characteristics you may need. Bob

9 years, 11 months

Resurrecting RK05

by michael.99.thompson＠gmail.com

> > From: Johnny Billquist <bqt at update.uu.se> > Subject: Re: Resurrecting RK05 > > There was also a version of the RK8 controller which did a binary unit > selection. I don't remember the designation of that controller off my > head at the moment. > > Johnny > I believe that it is the RKS8 controller that can access 8 drives. -- Michael Thompson

9 years, 11 months

Broken H724 power supply from PDP-8/e

by michael.99.thompson＠gmail.com

The H724 power supply in my PDP-8/e works OK for about 5 seconds and then the +5V output goes to about 3.0V. If I leave it on for a few more seconds it will blow the 20A fuse for the +5V output. I have the power supply partially disassembled and disconnected from the chassis. I don't see anything obviously fried. There are three ring terminals with two wires each connected to the + side of C205. Two of the wires get hot in just a few seconds. I have not disassembled the wire harness, but I suspect that they are the wires that go to the fuse holder. C205 is the output filter for +5V. The capacitor resistance goes above 3k Ohms if I leave the VOM connected for about 20 seconds, so the cap is not the 20A short. Should I just keep disassembling the power supply and tracing the warm wires? Anyone have experience repairing one of these power supplies? -- Michael Thompson

9 years, 11 months

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test-drb January 2015