Hi Everyone,
Is there any interest in a DiscFerret in good working order?
If so contact me off-list. I don't have a plan yet for the case interest
is >1.
Fred Jan
Wondering if anyone has any EPROM dumps of Netronics' BASIC for the
Explorer/85. I'd like to set up my own EX/85 for that but also have this
little Atlantis 8085 board that I was hoping to experiment with. I've
looked all over the interwebs and have had no luck finding a dump, although
I have found reference to people dumping them for backup purposes.
Many thanks!
Brad
> From: Fritz Mueller fritzm at fritzm.org
> I'm assuming that if I had to release the media from the hub in order
> to true it, its value as an alignment cartridge would be lost anyway.
Yes and no.... The RK05 alignment pack is mostly to make sure that the fine
lateral track adjustment is correct (i.e. that when the head thinks it's over
track 0, it's _really_ over track 0).
However, there's also rotational alignment (i.e. start of sector), which is
done with the slits in the ring on the pack (so yes, releasing the media from
the hub in an ordinary pack will make that pack unreadable - at least until
it's reformatted). There is an index/sector timing adjustment procedure, and
it uses the alignment pack too, but this rarely needs to be done.
Still, if the platter is on wrong, the whole thing's useless anyway. So as
long as the platter goes back exactly concentric (and I'm unsure of how the
mechanical alignment works, there may be something to assure there's no
runout), it should still be usable for the head alignment. (To use it for
sector alignment, you'd have to ensure that the drive is aligned for this
before-hand, then use it to align the pack.)
But check the RK05 Maintenance Manual (EK-RK5JF-MM-001), and see if there's
anything I missed. There's also an 'RK05 Subsystem Maintence Course' document
(EY-D2055-WB-001) which might contain some useful info.
Off to look at the V6 MMU setup code! ;-)
Noel
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of John Foust
via cctalk
Sent: Wednesday, January 09, 2019 6:33 AM
To: cctalk at classiccmp.org
Subject: Re: Bogus "account hacked" message
At 08:56 PM 1/8/2019, Jon Elson via cctalk wrote:
>I currently have 9000-some blocked IPs in hosts.deny, I wonder how much
that slows down my store. Ugh, the stuff we are forced to go through.
Now you've increased your chances by 9000x that someday someone will
complain that they can't reach your site. You said "botnet" right?
- John
Anyone here, owning a Xebec Owl and/or its documentation?
The Owl is a SASI-disk-drive from 1984. One could say that it's mostly a
Xebec S1410A mounted on a drive, thus eliminating the ST-506-interface.
The one I had my hands on seems to be a late version, called the Owl II
(20MB instead of 10MB). It shiped with a PC-SASI-controller for the
8-bit-ISA-bus (TTL) and 4KB Boot-ROM (in a 2764-EPROM).
The firmware of the Owl II itself seems to be more advanced and bigger
than that of the well-known Xebec-bridge-boards: The Owl has 16KB
(27128) of firmware, compared to the 4/8KB (2732/64) of a S1410/10A/20.
A lot of its commands are explained in the documentation of the S1420
controller, but it seems there are some commands missing, e.g. the
command 0x0C.
The drive is not compatible with later SCSI equippment. The owner
reported, he did not manage to run it with a "modern" PC-SCSI-Controller
and I'm not surprised about this: Some commands and codes are
incompatible to SCSI/CCS, so the SENSE codes. There is also a command
collision with the INQUIRY command, uhhhh :(
Does someone own the/some/any documentation for the Owl?
It doesn't seem there's much more out there than this brochure:
http://www.bitsavers.org/pdf/xebec/brochures/Xebec_Owl_Datasheet_198410xx.p…
--map
FWIW, I use a password manager (Keepass/Keepass2, tho there are other
good ones). It's another step or two in my workflow, but let's me
have a unique, very strong password for everything I log into.
Greatly reduces the impact of password dump attacks.
IBM's APL/PC v1.0 crashes if you try to run it on a PC with more than 512 KB RAM.
I learned today that there was a patch published to make it work on systems with 640 KB. Of course, I can't seem to find any trace of it.
Anyone save a copy or know where it might be found today?
ok
bear.
--
until further notice
So I'm consolidating my storage and finding I have a lot of surplus stuff.
For starters, I have a few too many RL02K-DCs (also a few RL01K-DCs and a
couple of 12-sector RK05 packs):
http://www.dbit.com/wilson/RL02K-DC.jpg
Believed to be good/usable but of course I guarantee nothing. YMMV.
YHMC. Located in Monson, MA, 01057, USA. I'll drive anywhere in southern
New England to deliver some / a few / all of them, for free. Anything more
complicated is OK, at your expense.
John Wilson
D Bit
