I'm looking for the requisite ROM image and software to low level format a Profile 5mb hard disk on an Apple III. From what I've read, I need a 2k ROM plugged into a Zilog Z8603 that replaces a chip on the controller board, and format utility booted from floppy.
So... Does anyone have this software? Burning an eprom and writing a disk are not a problem - I just can't find the ROM image/software anywhere.
-Ian
> ------------------------------
>
>
> Ok, it's been a few days, but I've finally looked at the /// that
> I dug out of my mother's garage during her recent move. It's missing
> two keycaps, the two upper rightmost keys from the main keyboard (not
> the numeric pad). Not having the caps, and not being able to find a
> decent picture in ten seconds of googling, I don't know which keys
> they are.
>
> Anybody gots?
>
> -Dave
...per:
http://vintagecomputer.net/apple/appleIII/apple_III_num2/Apple_III-unit.JPG
+ |
= \
Bill Degnan
I recently came upon a Dysan PAT-2+ Performance Alignment Tester and I
already had an alignment disk for it - an 8" 48TPI 360 RPM 2 Sided drive -
disk 360/2A.
Does anyone have a source for additional format disks? Each drive type has
its own disk. What's on these disks anyway? My PAT-2 does not power up at
the moment, I have to open it up and take a look to see what's the problem.
Hopefully it's just a voltage regulator. I checked the web, too many
Dyson vaccum cleaner links and non-relevant stuff.
Bill Degnan
Hello Chuck,
Do you still have those NSC800 chips?
I would like to buy them all!
Robbert Stam
> /Mon Jan 23 19:11:42 CST 2006/
> while back I posted a WTB for some NSC 800 CPU chips and didn't turn
> up anyone having any for sale. Calls to the usual surplus places came
> up empty. I did finally manage to snag a bunch of these--more than I
> need. These are the 3 MHz ceramic 40 pin DIP packages with a date code
> in late 1986. Supposedly NOS (they certainly don't appear to be
> pulls). In case you're not familiar with these, they're basically CMOS
> Z80 CPUs with 8085 timings. They have the same half-interrupt pins
> that the 8085 does, but NMI traps to 0066H and there's no RIM or SIM.
> Interface signals are prety much 8085-compatible with the 8085-style
> multipexed data/address lines. These are NOT pin-compatible with
> either the 8085 or the Z80, but my need for them is to replace an 8085
> with the assistance of a little glue (mostly flipping a few signals).
> You can find the data sheet on the web at
> http://www.alldatasheet.com/datasheet-pdf/pdf/NSC/NSC800.html. At any
> rate, I've got about 15 of these to spare and will part with them for
> $2 each+postage I'll give preference to those buying more than one.
> Cheers, Chuck
I obtained an Intel SDK-85 eval board some time ago and decided to try
to bring it back to life today. It had been part of a Philips logic
analyzer demo system apparently. They had cut off the prototyping area
on the left side and put their own board there instead... which had a
2716 EPROM on it and some hardware to generate glitches as part of the
logic analyzer demo I guess.
In any case, I undid all of their mods (except of course, putting the
sawed off prototype section back on!) and the unit sort of works.
What I have discovered is that the 8355 ROM+IO chip is flakey. It won't
work unless I freeze it with component cooler. Once I have done that,
then it starts working and stays working for hours as long as power is
not removed. If it gets powered down, then I have to freeze it again
before the device will respond with valid fetches.
I don't suppose anyone has a spare 8355 with SDK-85 monitor burned in
it do they?
I'm guessing that's probably unobtainium so, failing that, wondering if
there's a .HEX of the ROM image floating around so that I don't have to
type it all in. If I have the bits, I can burn a 8755 that drops into
the same location.
Any guesses as to what the failure mode might be of the 8355? It is sort
of curious that once it gets started from frozen, it keeps working nicely.
I already did my time at ETA, cooling chips in liquid nitrogen so that's
kind of behind me now ;-)
Chris
--
Chris Elmquist
I'm looking for the 6 keytop from the numeric keypad for an Apple ///. I've already replaced the broken-off keyswitch, but, of course the keytop is long gone.
-Ian
I think we are beyond the beginning. The end of floppies began several years
ago when notebook manufacturers no longer built them in. Netbooks the same.
Another technology has bitten the dust! It appears if I will have to
transfer the data on 100s of floppies unto usb thumb drives. Hopefully they
will be around for some time to come.<fingers crossed>
Murray--
I have an AlphaServer 1000A 4/266 that is not booting. When I power it
up, nothing shows up on the control panel LCD and there are no beep
codes. I know that the motherboard is receiving power because the "link
active" light on the Ethernet adapter comes on. Is there anything that I
can do to fix it, or should I just try to find another Alpha (I don't
seem to have much luck with Alphas - I have a DEC 3000/300X with a bad
RAM slot).
I'm trying to find Thomas Foote, the author of DroidQuest. You may
remember a game for the Apple 2 called "Robot Odyssey". DroidQuest is
that game reimplemented in Java. The last trace I've seen of him was when
he posted to his DroidQuest mailing list on Yahoo two years ago. I
emailed him again a few days ago with no reply. I have several
enhancements and bugfixed I'd like to discuss.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
