test-drb January 2007

test-drb@ccmp.vtda.org

238 participants
538 discussions

by ethan.dicks＠gmail.com

Bob, Wanted to let you know that once I knew which address the package went to, I was able to track it down. Thanks for looking that up for me. I just need to order some 10 LED bars and I can get the Panda lights put together. I'll probably have enough stuff for a parts order within the next few weeks (thinking of a DigiKey order for some Atmel processors anyway). Cheers, -ethan

17 years, 11 months

Televideo CPM machine available in Canberra Australia

by dave06a＠dunfield.com

As the subject says - contact me for details. Dave -- dave06a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

17 years, 11 months

SGI Challenge XLs up for grabs

by pat＠computer-refuge.org

I have two SGI Challenge XL racks going up for grabs; I really need the space back for other new equipment. Make an offer, mostly just want the space back, and I don't really have a use for another big old Irix box.. One is an R10k system and one is an R4400 system. I don't remember exactly how much memory and procs are in each, but could go look. They both have 10BT ethernet and FDDI connections. Pick-up is preferred, from Lafayette, IN. Zip 47901. If you want me to ship the machine, expect to pay for my time and effort to do so, in addition to freight charges. If I don't get a response by Feb 3rd, I'll be parting the machines out to sell on ebay. Pat -- Purdue University ITAP/RCAC --- http://www.rcac.purdue.edu/ The Computer Refuge --- http://computer-refuge.org

17 years, 11 months

Compaq Portable III available in Brewerton NY, USA

by dave06a＠dunfield.com

17 years, 11 months

NEC APC H03 available in Rhode Island, USA

by dave06a＠dunfield.com

17 years, 11 months

need insights on finding big cartons

by chrism3667＠yahoo.com

of course its always preferable to scrounge. I need to ship 3 cpus in 1 box. Help. Supermarket aint working... ____________________________________________________________________________________ Any questions? Get answers on any topic at www.Answers.yahoo.com. Try it now.

17 years, 11 months

Tektronix 422

by spectre＠floodgap.com

I've been offered a Tektronix 422 oscilloscope (price is under negotiation). Is this a decent scope or a piece of junk? I'm not very experienced with oscilloscopes, but I want to get familiar with them and this one was not disastrously large. -- --------------------------------- personal: http://www.armory.com/~spectre/ --- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- This message will self-destruct in five seconds. Good luck, Jim. -- M:I ----

17 years, 11 months

Help with classic Apple powerbook/OS

by technobug＠comcast.net

On Sun, 28 Jan 2007 08:40:42 -0600, Tom Uban <uban at ubanproductions.com> wrote: > I'm looking for a bit of help from someone knowledgeable on > MacOS 7 and/or 8. > > I bought a Powerbook 150 years ago and my brother has been using > it for years in the studio to run the MIDI sequencer FreeStyle. > > The PB 150 recently died and I bought a couple of Powerbook 540c > on eBay to replace it. > > My current problem list: > > 1. My AppleCD 600e (which works fine on the PB 150) does > not show up on either of the PB 540c, so I have no way > to read CDs on the 540c machines. Cameron Kaiser noted: > This sounds like an Extension problem. Do you have all the CD > extensions > installed on the 540c? I don't remember them off the top of my > head, but > they're things like Apple CD, Hi-Sierra, etc. 7.5.2 running on my Powerbook 520 has the following CD related extensions: Apple CD-ROM (5.1.2 - 7.5 update 2.0), High Sierra File Access (5.1 - 7.5 update 2.0), IS) 9660 File Access (5.1 - 7.5 update 2.0), and Foreign File Access (5.1 - 7.5 update 2.0). Without these you will not see the CD. > I assume you are using the same cable (HDI-30 to "Centronics" SCSI). Note that there are two kinds of adaptor cables. From one of Apple's FAQs: "5) Question: I am trying to connect a SCSI device to my PowerBook. However, when I start up the PowerBook, a diamond icon with a number appears on my screen. Answer: You are most likely using the wrong SCSI cable. You should be using the HDI-30 SCSI System Cable (M2538LL/A), which is a light gray color and only has 29 pins (there is a pin missing). You are most likely using the HDI-30 SCSI Disk Adapter cable (M2539LL/A) which is dark gray and has all 30 pins." Tom Uban asked: > And how does an extension affect the ability to boot from the CD? I > would have thought that the boot ROM code would have to know about > the CD without the aid of an extension... First of all is the CD bootable? You might want to load the CD and then look in the startup disk control panel and see if you see the CD as a boot disk - this is independent . If so, choose it and restart - the older systems only boot from the disk designated in the control panel. The 540c existed from May 1994 to August 1995 - almost exactly the same era as the 150 so the CD 600e should work. >>> 3. I thought that updating the version of FreeMidi from 1.3 >>> to the latest 1.48 would be a good idea. The image size >>> is 4Mb, which does not fit onto a floppy. >>> >> (Cameron Kaiser) >> I suspect this problem will be solved when you get the CD working :) >> >> > > How does the working CD solve my problem? I realize that I will be > able to write a large file on my PCs CD-RW, but will the MacOS be > able to read the file structure? And if it does, will it handle > the file type problem correctly? The new FreeMidi version is a .hqx > file. Will the OS know what to do with that or will I have to get > some Stuffit type thing to take it apart? The Mac should handle the PC written CD. IIRC Stuffit expander was include on both the 7.5 and 8 installs. Do a "find" to see if you have it on Alternates: if you have the dark gray SCSI adaptor cable, you can hook the laptop up as a disk to another Mac's SCSI system. The "PowerBook Setup" control panel allows you to choose the ID. Also, if you have an AAUI you can drop the laptop on your LAN and transfer files that way. CRC

17 years, 11 months

RS366

by ard＠p850ug1.demon.co.uk

A bit of background : Spread over my bench at the moment are the insides of an HP11284 Data Communication Interface for the HP9830. This is a somewhat nice-for-the-time unit that does async and sync protocols, etc.. Anyway, as well as the RS232 interface to a modem, it also has an 'RS366' interface to an ACU (Automatic Calling Unit?). From what I've managed to discover so far, this is an interface for autodialers, it uses a DB25 connector, 'RS232' voltage levels (in fact the HP11284 uses 1488s and 1489s to talk to the RS366 connector). A goolge search for RS366 provided me with a pinout (which I had anyway) and brief descriptions of the signals. But I'd like more :-). In particular, does anyone know a free (or relatively cheap) more complete spec. I;d like to know the timeing of the various handshake signals, and the encoding of the 4-bit digit-to-dial lines (it's not even obvious that '0' is sent as 0000...). What would be _really_ nice would be the schematic of an old (pre-microcontorller [1]) ACU with an RS366 interface. I don't suppose anyone knows of one. ]1] Since the HP11284 dates from 1974-ish, I would guess the RS366 interface is even older, and that discrete-logic implementations of the ACU must have existed. -tony

17 years, 11 months

Component level repair

by Billy.Pettit＠wdc.com

* Fred Cisin wrote: > >> If that is the answer, I'm not sure what the question is, because I > >> didn't ask one... > > What is six times seven? > > Oh wait, that is the question for another answer... On Thu, 25 Jan 2007 arcarlini at iee.org <http://www.classiccmp.org/mailman/listinfo/cctalk> wrote: > It's the wrong question too ... WhatdoYOUgetwhenyoumultiplysixbynine? ----------------------------------- Philistines. Are there no Douglas Adams fans here? Life, The Universe and Everything? Billy

17 years, 11 months

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test-drb January 2007