test-drb September 2014

test-drb@ccmp.vtda.org

188 participants
251 discussions

by trash80＠internode.on.net

Latest issue of TRS8BIT has been made available for the TRS-80 enthusiasts among us. Some very good articles including one on breathing life back into a seemingly dead Model 2, reinking printer ribbons, the Model 4 gate-array motherboard, plus many others. http://www.fabsitesuk.com/tandy/trs8bit0803.pdf ++++++++++ Kevin Parker ++++++++++

9 years, 8 months

DEC VAX SDI interface via BDA?

by michael.99.thompson＠gmail.com

> From: Camiel Vanderhoeven <iamcamiel at gmail.com> > Date: Sat, 6 Sep 2014 11:18:14 +0200 > That's for a VAXBI bus based system. The only VAXstation it would work > in is a VAXstation 8000, which is very hard to find. > I have one, minus the E&S graphics subsystem. -- Michael Thompson

9 years, 8 months

Bringing alot of SGI, sun & some dec stuff to VCFMW

by slandon110＠gmail.com

Is there any interest in a bunch of SGI gear, Sun systems and some DEC stuff, Im bringing a bunch of it to VCF. Theres Indigo's, Octanes, Octane 2s, Couple of Ultra 5's Some sun blade servers. Lots of SCSI drives & Cables. Stuff like that let me know

9 years, 8 months

Original Apple II and SE/30 for sale or trade at VCFMW 9.0

by slandon110＠gmail.com

Ive had this original Apple II for a very long while and I haven't given it the love it deserves. I will be bringing it to VCF for sale. It has a Disk II Drive, 9inch B&W Monitor, SuprMod RF Modulator and 2 Boxes of Disks. It does need a bit of work, the original keyboard has non operational keys, however a II plus keyboard is installed in the machine and it does work fine. It also occasionally drops to the monitor. This has Applesoft in ROM, a 16K Language Card, 64k RAM and a Parallel interface card. The next machine that needs a home is a pretty tricked out SE/30 It has 68MB RAM, Ethernet Card, 4GB SCSI HDD and has OS 7.5.5 installed. It can run A/UX on this configuration. Included will be a copy of the A/UX CD-ROM and the associated files to install it on a CD as well. Everything is make a reasonable offer on it, Or im willing to trade the souped up SE/30 system for a really nice Amiga system, A 1200 with Accelerator, or a 4000 with an Ethernet card. Maybe even a 3000 if its wicked enough.

9 years, 8 months

Further PDP-11/05 debugging -- core memory faults

by js＠cimmeri.com

> Subject: > Further PDP-11/05 debugging -- core > memory faults > From: > Josh Dersch <derschjo at gmail.com> > Date: > 9/5/2014 11:11 PM > > To: > General Discussion: On-Topic and > Off-Topic Posts <cctalk at classiccmp.org> > > > Hi all -- > > The CPU in the 11/05 seems to be > behaving nicely as far as I can tell, > now that the Microcode ROMs are no > longer filled with bogus data. It > will run small programs I've toggled > in without issue, and so I've moved > on to testing the memory. Josh, what do you end up doing to recreate the ROMs? Thanks, John S.

9 years, 8 months

Reproduction front panels and switch levers for PDP-8/E and M

by j＠ckrubin.us

I'm in the process of reproducing front panels for PDP-8/E and/or M machines, as well as switch levers for these machines and others that use the same shape but different colors (e.g. 8/L, 11/20). For the front panels, I'm working with a local (Chicago) silk-screen house to create the reproductions. At this point (still exploring final pricing), it looks like unit cost will be about $200 for a run of 5. This will most likely be a CNC cut acrylic panel (laser probably won't work because of the angled relief for the key switch) with silk-screen printing front and back. The panel shape is the same for E and M but the screens are quite different. I've also got a couple different M variations. Note that each panel requires five or six screens, including black masking on the back and transparent red or "frosted" masks for the indicator lights in addition to the three colors on the front. I'm not sure about possibly adding a transparent overlay (non-original) over the front silk screening to protect the final product. Please let me know your interest and thoughts about a protective overlay. For the switch levers, "phooky" from the NYC Resistors has done a 3D rendering - http://www.thingiverse.com/thing:360853 - and printed prototype levers and mounting frames. Note that there are three renderings at the thingverse site - original lever, lever with improved pivot (metal pin) and bracket for attaching lever to available slide switch. Phooky has also printed up samples of these objects. The next step is to work on injection molding the parts. The Resistors have an injection molding setup and phooky is planning to create a mold using CNC equipment and his 3D renderings. There are several reasons for moving from 3D printing to injection molding for these parts. The first two, finish and mechanical strength, are slowly being addressed by improved printers but the third reason, color matching, is the critical difference. The front panel project is in progress and hopefully panels will be available in a few months. The switch project is very much exploratory with no promises or dates at this time. Comments please! Jack

9 years, 8 months

Pdp11/34 bus sack timeout card

by roeapeterson＠gmail.com

I'm helping a friend resurrect an 11/34. Unlike my 34a, it requires an M8264 no-sack timeout board. Two questions. Does the board need to be at the end of the bus? And, does it need a slot with the NPR jumper removed? Thanks. This machine is an old friend, and it is nearly running again after many years.

9 years, 8 months

ID this terminal (found in 1969 issue of Rolling Stone)?

by derschjo＠gmail.com

Hey all ? Spent a bit of time this weekend reading through some bound editions of Rolling Stone magazine (July-November 1969) and found the below (in an article about the Chicago PD's ?Vice Control? division): https://plus.google.com/u/0/photos/117997069161125071032/albums/58803294238… This was in the September 6, 1969 issue. It reminds me a lot of an Imlac, but this is a bit too early ? as far as I know the Imlac was early 1970. Anyone have any ideas what that thing is? - Josh

9 years, 8 months

Craigslist ad for Sr. Vintage Software Developer (Seattle)

by isking＠uw.edu

On Sep 6, 2014 10:04 AM, <cctalk-request at classiccmp.org> wrote: > > > Message: 3 > Date: Fri, 5 Sep 2014 19:33:20 -0700 (PDT) > From: geneb <geneb at deltasoft.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: RE: Craigslist ad for Sr. Vintage Software Developer > (Seattle) > Message-ID: <alpine.LFD.2.03.1409051932070.22083 at deltasoft.com> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > On Fri, 5 Sep 2014, Rich Alderson wrote: > > >> Yeah I like to think I have it pretty good in academia but this is > >> definitely a #hotjob. You actually pay people to do that stuff?? :) > > > > > > Yes, we certainly do. > > I think it's pretty cool, but the bachelor degree requirement shouldn't be > there. It's got f*ck all to do with someone's ability to write software & > maintain hardware for vintage machines...or modern ones for that matter. > "Brave, brave Sir Robin...."

9 years, 8 months

DECmate II H7842A and H7842B PSU Pinouts?

by bobvines00＠gmail.com

> Date: Thu, 4 Sep 2014 10:13:00 -0400 > From: Todd Goodman <tsg at bonedaddy.net> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Subject: Re: DECmate II H7842A and H7842B PSU Pinouts? > > * Bob Vines <bobvines00 at gmail.com> [140904 10:02]: > [SNIP] >> (Also, I recently found a "vintage computer" discussion site where >> they were trying to collect, preserve, & make *usable* images of any >> DEC microfiche sets they could get. One guy said that he had a fiche >> set that included the DECmate II. None of these fiche sets are >> on-line yet as far as I can tell.) >> >> >> Thanks, >> >> Bob > > Would you possibly pass along that site? > > Thanks! > > Todd Todd, It was http://www.vintage-computer.com/vcforum/archive/index.php/t-24206.html?s=8d… Sorry for the late response -- I get the digest version of the cctech list and often fall behind in my reading. Bob

9 years, 8 months

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test-drb September 2014