Is there any reason to use either a CMOS or TTL Crystal Oscillator for a
Cosmac computer? I assume it should accept either, any preference if
you had a choice? Thanks, and can't wait to showcase some of the DIY
computers I am working on at this years VCFMW!
I'm curious if anyone here has tried to boot rsts v10.1 with an emulex
UC07 qbus scsi controller.
I'll go ask on the google forums, but I thought I'd ask here also.
I made an ra81 disk image with simh and it boots fine, but when I
transfer the image to a scsi disk and and boot it on an 11/83 with a
UC07 scsi controller it fails (claims something about the cluster size
being wrong).
I'm just trying to get a rsts v10.1 image which will boot on a qbus
11/23 with an UC07. I'm wondering if the UC07's MSCP emulation is at
odds with rsts's MSCP driver.
-brad
I'm curious if anyone has ever debugged an QBUS MSV11 board.
I have one which appears to have a bad memory location - a single bit
error. I assume this means there
is one bad dram chip. But I've never debugged a memory board like this
before.
Is it possible to figure out which chip is bad? (it seems obvious the
answer is yes, but how?)
I know the location - is there some reasonable way to map that back to
the chip?
I guess I could hunt and peck by grounding or pulling high the outputs
of different chips and
running the memory diag.
any thoughts?
-brad
I just bought a SX64 and it has local pickup. Anyone nearby who might
offer my SX a home for a couple of months until I drive to Lombard in
late September for the ECCC/VCF show?
Jim
--
Jim Brain
brain at jbrain.comwww.jbrain.com
Got me another harddisk, also an old Connor, not sure if it works but can't seem to find anything like a working DOS floppy with a FDISK.EXE which allows the removal of non-DOS partitions.
A quick search for "remove non dos partition debug" should find an easy way to wipe the partition table using the MSDOS Debug command. Here's one such link:
http://forums.techguy.org/dos-other/36829-removing-dos-partition-debug.html
Hi there!
I know it's not as interesting as non-Intel-based stuff, but I just picked up an ex-NASA ThinkPad 760XD and thought I'd poke at it a while given it's connection to the Shuttle Program.
Does anyone know anything about these older IBM ThinkPads? This one came to me missing it's battery and hard drive/caddy assembly. The battery's not so big a deal, but finding the right hard drive and caddy has been pain. I'm a big fan of "stock", so I did some research and looks like the "high-end" drive for this thing back in the day was the 3.0GB IBM DLGA-23080. I'd also picked up an after-market drive caddy, but as it turns out the DLGA-23080 is too tall for the caddy... Anyone know if the DLGA-23080 had a special caddy, and where I might find the right one that's genuine IBM? Or, am I completely mistaken and the "stock" 3.0GB drive for the ThinkPad 760XD is a different model? I can't find a good FRU list anywhere...
Anyway, many, many thanks in advance for the help!!
-Ben
>How about ... "One ringie dingie"Ben.
Adding to the noise pollution, but why not merge this with those silly disclaimers and a surfeit of caps to be the following:
"If this e-mail message has reached anyone other than the person who is reading it, then be advised that it is privileged information and reading, divulging, or even thinking about doing that will attract the unmitigated ire of ... HOW DARE YOU! YOU READ IT ANYWAY!! NOW THINGS ARE GOING TO GET UNPLEASANT!!! LIKE YOUR SLEEP?? WELL, DON"T COUNT ON GETTING MUCH MORE OF IT! RINGY-DINGIES ALL NIGHT COMING RIGHT UP!
We're the phone company. We don't care. We don't have to.
Wonder if anyone is interested in this?
4 1/2 inch floppy prototype supposedly from IBM
htttp://www.ebay.com/itm/251110295055
really pricy, but if you are into weird media this might not be
something to miss.
Jim
