test-drb April 2004

test-drb@ccmp.vtda.org

248 participants
481 discussions

by dave04a＠dunfield.com

Hi Adrian, >> #1) Can anyone tell me the power requirements of this drive? >If you go to www.classiccmp.org or google and search the archives you'll >find a thread or 2 on power supplies for the Atari 400/800 - these are the >same ones that run the 1050 floppy. The one I have here that recently >powered my Atari 400 and 1200XL is marked as 9.5V 1.5A but it's acting up so >my DMM won't tell me whether it's centre positive or not. Thanks for the info - I did a bit of looking and found several references once I mentioned "Atari 400" - turns out the supplies are AC, which probably explains why your DMM is having trouble determining the polarity. >> need some sort >> of boot disk... Anyone out there with one that can make a >> copy or send an >> image (Can Atari images be read/written on a PC's drive?) > >I don't think so, you might need an SIO2PC cable to do that. Hopefully Curt >will be along with more info shortly, as long as he's been allowed back in >after his out-of-office faux pas the other week :) Ok. I'll do some more looking around as well. Do you know if there are any disk I/O functions build into the ROMs of the computer and/or drive (like the C64), or do I absolutely need a boot disk in order to make the drive do anything (so I can figure out if it works or not)? Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector.

20 years, 8 months

OT: Other collecting activities? - Digital Stereo camera

by Innfogra＠aol.com

In a message dated 4/17/04 2:59:57 PM Pacific Daylight Time, healyzh(a)aracnet.com writes: Some interesting things for the traditional Stereo Card format could probably be done with a properly hacked pair of digital cameras. I'm not sure what might have been done along these lines. Photography in one of my avocations too. Last "buy nothing day" I bought a Pentax Optio 430RS digital camera for an upcoming trip to Mexico. To my surprise it has a stereo mode and came with an interesting stereo viewer. It looks like it will be fun to play with. First you shoot one pic, move the camera slightly and shoot the second pic. They are both recorded on one frame. You then print the pic on a normal color printer which prints the two images on one sheet of paper. Comes with a chart on how much to move the camera for a given focusing distance to get an optimum stereo effect. The viewer is a pop together piece of translucent plastic which you then set on the print and look through the lenses to see the stereo picture. Folds flat. I was surprised to see stereo in the camera and a viewer in the box. Someone high up in Pentax has a stereo bug. I took a couple of stereo pics. Enough to see there is a learning curve. Didn't use stereo on the trip. Turned out to be a good first digital camera for the trip, though.

20 years, 8 months

HP-UX 10.20

by sieler＠allegro.com

Hi, > I need 10.20 and all compliers can you help me. Possibly. We can't supply you the compilers or operating system, as the only copy we own is on a computer we own ... but we can discuss compilation services if that's what you're interested in. In somewhat other words, I'm indirectly asking: is this for hobbyist wants, or business needs? thanks, Stan -- Stan Sieler sieler(a)allegro.com www.allegro.com/sieler/wanted/index.html

20 years, 8 months

Write protect tags

by pete＠dunnington.u-net.com

On Apr 16, 18:53, Dwight K. Elvey wrote: > Well, I just saw a disk with the tag mounted such that > it was diagonally mounted( looks like a little triangle > from each side ). There are no parallel edges to catch > on things as one slides the disk in and out. The > sharp corners that might catch are on the edge of the > disk and unlikely to cause the tag to lift. > Has anyone else tried this? What do you think? I've been doing this for years, with the square Dysan tabs, and it does seem to work better. Most of my WP tabs are getting a bit old, as they came with the original purchases of 5.25" DD disks! -- Pete Peter Turnbull Network Manager University of York

20 years, 8 months

Does anyone have National Semiconductor's Appnote AN-359?

by pete＠dunnington.u-net.com

On Apr 18, 14:31, Ethan Dicks wrote: > > I don't care if the Digital Library of the Calcutta Technical Institute > is up or not; all I'm after is the app note for the MM58174A. Does anyone > on the list have the file 'AN-359.pdf'? Google doesn't seem to have cached any of the files it references, but you can get it at http://www.dunnington.u-net.com/tmp/nsc05304.pdf -- Pete Peter Turnbull Network Manager University of York

20 years, 8 months

DEC VAX 785 and PDP11/70's in Kansas City

by wacarder＠usit.net

And since I'm the new kid on the block here on this list, I guess I'll just have to sit here in the Southeast and salivate as I watch you guys who are way ahead of me go home with more good stuff!!!!! I want a real unibus PDP-11 badly so I can move a copy of my reincarnated college 11/40 RSTS/E environment off Bob Supnik's simulator and onto some real hardware. It seems like the guys that have all the good stuff already just keep getting more while the latecomers sit here with the simulator running the old stuff on a PC via Telnet. No, I'm not whining..... :-) Ashley P.S. If any of you ever want to give a PDP-11 to a good home...... -----Original Message----- From: Patrick Finnegan <pat(a)computer-refuge.org> Sent: Apr 16, 2004 1:33 PM To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Subject: Re: DEC VAX 785 and PDP11/70's in Kansas City McFadden, Mike declared on Friday 16 April 2004 10:51 am: > I just got word from a friend that a company in Kansas City is > planning to dispose of the following. > > DEC VAX 785 in three 6' cabinets > DEC PDP 11/70 in ten 6' cabinets, this may be two computers > 4 RM03 disk drives > 2 TU80 tape drives > Other disks for VAX > That is what they remembered without actually having a list. And just perfect the wrong time for me to be able to "help" with anything. Maybe. Of course, it looks like I'm too far from the top of the list to be given the opportunity to help... Still I would love to have any part of this... the RM03's would work nicely on my 11/750 that needs some drives. Pat -- Purdue University ITAP/RCS --- http://www.itap.purdue.edu/rcs/ The Computer Refuge --- http://computer-refuge.org

20 years, 8 months

Time and apple prodos

by ron.hudson＠sbcglobal.net

Apple prodos catalog command shows times and dates for directory entries, how does one give the computer the starting time and date?

20 years, 8 months

TI Bubble Memory?

by rigdonj＠cfl.rr.com

Today I found a couple of multibus cards made by TI. One of them is marked TM990/210. In addition to a TI TMS9916NL LSIC, it has six large yellow "blocks" on it that I THINK may be bubble memories. They're about 1 1/4" square and about 7/16" thick and are marked "TIB 0203S, 23May80 -1, MSK=627573, 8B, 958-S-40, 24-164-11". They're in flattened out metal cylinders with a black epoxy looking material in the center. There are seven leads coming out of each end and there is what looks like a small plastic transistor clipped to the side of the package. It looks like a transistor but only has two leads so I'm guessing that it's probably a temperatrure sensor. Does anyone know if these are bubble memories? I've had TI bubble memories before but they didn't look anything like this. Anyone know what these cards are? the second one is marked TM990/310. It has three TI TMS9901s on it along with many SSI ICs. Joe

20 years, 8 months

Does anyone have National Semiconductor's Appnote AN-359?

by Lee.Davison＠merlincommunications.com

Google's HTML cache version is available at http://216.239.59.104/search?q=cache:7YLcoB-5lv0J:www.nalanda.nitc.ac.in/ind ustry/appnotes/Natsemi/AN-359.pdf+%22AN-359.pdf but the note itself seems to have been removed from Nat Semi's lists. See .. http://www.national.com/an/AN/ .. for what there is available. Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

20 years, 8 months

Apple IIC+ Pointers on getting programs to and from machine.

by dave04a＠dunfield.com

At 17:00 17/04/2004 -0700, you wrote: > >I want to start getting some of the BASIC programs I am writing on >my IIC+ out for sharing, I also want to be able to make use of some >of the disk images out on the internet (apple.asimov...) > >How can I do these things? > >URL's for good web pages? > >Anybody else into Apple II? Hi Ron, To transfer images from my Franklin, I built a serial card using a 6551 UART running 19200 bps, and wrote a set of programs for the Apple and the PC to transfer images over a serial link - takes about a minute and a half as I recall to transfer a disk. Do you have a serial interface for the IIC+? Regards, -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector.

20 years, 8 months

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test-drb April 2004