test-drb April 2011

test-drb@ccmp.vtda.org

184 participants
276 discussions

Control Data - TRG Division microwave stuff

by wdonzelli＠gmail.com

CDC bought TRG, a company that made microwave stuff back in the 60s. CDC also branched out into medical equipment, industrial controls, art books, used cars, shotguns, and vodka. -- Will On Apr 17, 2011 6:54 PM, "Brent Hilpert" <hilpert at cs.ubc.ca> wrote: Some old microwave stuff came into the radio museum lately, probably 60/70s vintage, amongst which was a piece with a "Control Data - TRG Division" label on it. Control Data was even imprinted on the waveguide adjustment micrometers. Idle curiousity, but anyone know how CD was involved with microwave waveguide componentry, or what the TRG Division was? (Chuck?) I didn't know CD branched out into anything beyond computing.

13 years, 8 months

Atari 800xl "translator disk"?

by dbetz＠xlisper.com

I have an Atari 800xl and a couple of 1050 disk drives. I also have two copies of the M.U.L.E. game on disk. Unfortunately, I can't get either to boot on the 800xl. I suspect that these are older games that were written for the 400/800 and may need the "translator disk" that allowed the 800xl to run games written for the older machines. Does anyone know where I could obtain a copy of this translator disk? Thanks! David Betz

13 years, 8 months

Assembly is dead, etc.

by lynchaj＠yahoo.com

Assembly is dead, etc. Chris M chrism3667 <mailto:cctalk%40classiccmp.org?Subject=Re%3A%20Assembly%20is%20dead%2C%20et c.&In-Reply-To=%3C453993.9363.qm%40web65508.mail.ac4.yahoo.com%3E> at yahoo.com Sat Apr 16 15:21:15 CDT 2011 * Previous message: Assembly is dead, etc. <http://classiccmp.org/pipermail/cctalk/2011-April/299144.html> * Next message: Assembly is dead, etc. <http://classiccmp.org/pipermail/cctalk/2011-April/299198.html> * Messages sorted by: [ date ] <http://classiccmp.org/pipermail/cctalk/2011-April/date.html#299191> [ thread ] <http://classiccmp.org/pipermail/cctalk/2011-April/thread.html#299191> [ <http://classiccmp.org/pipermail/cctalk/2011-April/subject.html#299191> subject ] [ author ] <http://classiccmp.org/pipermail/cctalk/2011-April/author.html#299191> _____ --- On Sat, 4/16/11, Dave McGuire <mcguire at neurotica.com <http://www.classiccmp.org/mailman/listinfo/cctalk> > wrote: > Those applications are widespread; there are > considerably more embedded computers in the world than > non-embedded. I'd like to hear from 1 person on this list that currently owns an 80186/88 based SBC. _____ Hi! There is an SBC-188 80C188 based SBC at the N8VEM project. It is a very popular board and there are many builders booting different sorts of 8088 style operating systems like FreeDOS, etc. I have plenty of the SBC-188 PCBs and some of the chips if anyone is interested. The original plan was to pair up the SBC-188 with the uPD7220 GDC board and run OpenGEM on FreeDOS. The good news is the SBC-188 and uPD7220 GDC boards are working. FreeDOS is working but we haven't quite gotten to OpenGEM yet. The SBC-188 with uPD7220 GDC make a sort of an "alternate universe" version of the PC using components of the period in a completely different configuration. Thanks and have a nice day! Andrew Lynch

13 years, 8 months

ASR 33 - question about powering reader

by billdeg＠degnanco.com

> > > Hi > > > > I have been able to get my PDP 11/05 to print "hello world" by > > entering a short program into the toggle switches. I can > > simultaneously get the punch to print if I enable it. The text is > > actually garbled (TE]HJVYRTD), but I assume I just have to make an > >Does the teletype print correctly in local mode? Could it be a problem >with the receive mechanciam in the Model 33? Yes, it prints fine. I have two TTY's, they both do the exact same thing when the PDP sends the text to the printer, that tells me it's a PDP transmit thing. >Can you correctly read charactes from the Model 33 keyboard on the PDP11? I have been trying to write a program that will do this using front panel switches. I could use some help. ><snip> I don't have one of these installed, as I have no base: http://www.pdp8.net/asr33/pics/old_rdr_power.shtml I believe that reader mod or no, I need to have power to the reader. >There was an 'official' Teletpye versio nwith automatic reder control. >This detected 2 control chreactters using levers in the 'stunt box' under >the platen. These operated swithc contacts (there may well have been a >latching relay involved too) to control the trip coil circuit. This >version is not at all common (at least not over here). <snip> >The first thing I would do is have the machine running in Local mode with >the covers off and a piece of tape in the reader. Press down the armature >flap on top of the trip coil. If the reader now runs (and the tape >cotnents are printed out on the Model 33), then the reader and the >mechancial side of things ae all working properly, and any problems are >in the trip coil circuit (most likely) no power for the reader. >I would invetigate thsi some more. What is the DC resistance between the >2 connections that go to the reader circuit (with those wires >disconnected from the rest of the teletpye)? If inifinite, this does >suggest a relay contact. I will check >Does anyhting happen if you apply 24V (or so) >between the 2 wires coming out of the machien from thsi device? If the >resistance drops to 'very low' then it really does sound like a relay. >Reconnect it, Apply 24V, and see if the reader runs now. The PDP is sending -15V from mate-and-lock connector 4 and 6, for the heck of it I tried this, quickly, but it had no effect. >The DEC connecotr has 6 pins used, 2 each for the transmit currnet loop, >receive current loop and reader run relay. The last will drive a small >relay coil directly. -15V? >Has this Model 33 ever been used on a PDP11? If so, it's likely to be >vertsion of the normal DEC modification and you can just connct up the >relay coil wires to the 2 remaining pins on the mate-n-lock. TTY "lineage unknown"

13 years, 8 months

Fwd: [IP] Fwd: Columbia terminates Kermit Project after 30 years (fwd)

by spectre＠floodgap.com

This is sad, though the project is going open source, but it would be nice to see someone continue the Kermit name. Ed's just the messenger; don't contact him about Kermit. ----- Forwarded message from Edward Vielmetti ----- From: Edward Vielmetti <..> Date: Sun, 10 Apr 2011 21:30:29 -0400 Subject: Fwd: [IP] Fwd: Columbia terminates Kermit Project after 30 years To: Cameron Kaiser [Charset UTF-8 unsupported, filtering to ASCII...] If you know of any systematic efforts to take over orphaned projects, this would not be a bad one to scoop up and preserve (if only for the use of the name) ---------- Forwarded message ---------- From: Dave Farber <dfarber at me.com> Date: Fri, Apr 8, 2011 at 8:25 PM Subject: [IP] Fwd: Columbia terminates Kermit Project after 30 years To: ip <ip at listbox.com> Begin forwarded message: *From:* Harry Saal <harry at saal.org> *Date:* April 8, 2011 8:23:38 PM EDT *To:* Dave Farber <Dave at farber.net> *Subject:* *Columbia terminates Kermit Project after 30 years* I have fond memories of transferring files from BBS's using Kermit. >From <http://www.columbia.edu/kermit/>http://www.columbia.edu/kermit/ Columbia University is proud of its role in developing and supporting the Kermit protocol and software, first developed in 1981 by Columbia University to facilitate interconnection of diverse computers and transfer of data between them. Columbia has been pleased to offer the various versions of Kermit software for free or at exceptionally low fees over the years, providing what we believe has been a valuable contribution to the progress and popularization of computing over the past 30 years. Unfortunately, Columbia has determined it can no longer continue to support the Kermit Project going forward. As of July 1st, 2011, development of any new Kermit software enhancements at Columbia University will cease, as will any ability of Columbia to provide ongoing maintenance and technical support for Kermit. ----- End of forwarded message from Edward Vielmetti ----- -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- ACTUAL CLASSIFIED AD: Parachute, used once, never opened, small stain. $100

13 years, 8 months

Columbia terminates Kermit Project after 30 years

by evan＠snarc.net

Sorry if this point has already been discussed; I'm very late to the thread and too lazy to search. :) Which * individuals * at Columbia led the original Kermit project? No names are mentioned at http://www.columbia.edu/kermit/, or on Wikipedia, etc.

13 years, 8 months

Paul Allen on 60 Minutes

by rdawson16＠hotmail.com

Just saw this, he is on tonight Has a tell alll book coming out Randy

13 years, 8 months

Control Data - TRG Division microwave stuff

by hilpert＠cs.ubc.ca

Some old microwave stuff came into the radio museum lately, probably 60/70s vintage, amongst which was a piece with a "Control Data - TRG Division" label on it. Control Data was even imprinted on the waveguide adjustment micrometers. Idle curiousity, but anyone know how CD was involved with microwave waveguide componentry, or what the TRG Division was? (Chuck?) I didn't know CD branched out into anything beyond computing.

13 years, 8 months

QED 993

by tiggerlasv＠aim.com

You won't need documentation for this unit, if you're just going to use it. The on-board jumpers are readily decoded - Q22 C/D (For BA23/BA123 and similar) Q22/Q22 for H9275 and similar backplanes. W/BB or W/O BB - most folks won't have battery back-up for their CPU. Remove your current CPU and all memory, and install the 993 in slot one. Shift all of your other boards up accordingly. It uses the standard DEC 11/93 I/O bulkhead (which is also for sale by ISSCCorp.) It will probably start up asking for a boot device. Hit control-C twice to get to the boot menu, which will give you the option to get into the boot menu, setup menu, and diagnostics menu. You can completely configure the board from there. Enjoy ! T

13 years, 8 months

ASR 33 - question about powering reader

by billdeg＠degnanco.com

> > The power supply for the reader in an ASR-33 is in the base, mounted > near the top. A good picture of it can be seen here: > > http://www.pdp8.net/asr33/pics/old_rdr_power.shtml > > I gather from your pics that you're running your ASR-33 baseless? > > -Dave > Yes, but I should be able to track down the power supply in my stuff someplace. I will rejoin the base to the tty asap. bd

13 years, 8 months

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test-drb April 2011