20 Dec
2007
20 Dec
'07
4:26 p.m.
Hi All
One of the good things, or bad things, about being the "antique computer
guy" at our local auctions is that I'm a frequent recipient of all
things old, obsolete, or just unwanted. Someone mistakingly bought a lot
item he did not want so rather than trashing it, he gave to me. I felt
it was unique enough that maybe some of the brethren on ccomp might want it.
It's a Control Data CMD 9448-96 "phoenix" modular (removable/fixed) disk
drive in unknown condition. It reminds me of a RL01/02 disk. It looks to
have everything there but until I find a manual, I know little about it.
It is supposed to have a capacity around 80MB, has a 14" platter and is
real heavy; 120+ lbs, so shipping is probably out of the question.
If anyone wants it. It's yours for the taking as long as you come get
it. I'm in SE Arizona outside of Tucson (near tombstone) and I do make
trips to Phoenix or El Paso from time to time!
I'll keep it around in my storage shed for a while at least!
Cheers
Tom Ponsford
20 Dec
20 Dec
7:20 p.m.
Toaster Oven. Do you have any cartridges for it?
I should be passing thru your area coming from Patagonia next week.
On Dec 20, 2007 3:26 PM, tponsford <tponsford at rnsmte.com> wrote:
Hi All
One of the good things, or bad things, about being the "antique computer
guy" at our local auctions is that I'm a frequent recipient of all
things old, obsolete, or just unwanted. Someone mistakingly bought a lot
item he did not want so rather than trashing it, he gave to me. I felt
it was unique enough that maybe some of the brethren on ccomp might want
it.
It's a Control Data CMD 9448-96 "phoenix" modular (removable/fixed) disk
drive in unknown condition. It reminds me of a RL01/02 disk. It looks to
have everything there but until I find a manual, I know little about it.
It is supposed to have a capacity around 80MB, has a 14" platter and is
real heavy; 120+ lbs, so shipping is probably out of the question.
If anyone wants it. It's yours for the taking as long as you come get
it. I'm in SE Arizona outside of Tucson (near tombstone) and I do make
trips to Phoenix or El Paso from time to time!
I'll keep it around in my storage shed for a while at least!
Cheers
Tom Ponsford
8:22 p.m.
It's a Control Data CMD 9448-96
"phoenix" modular (removable/fixed) disk
drive in unknown condition. It reminds me of a RL01/02 disk. It looks to
have everything there but until I find a manual, I know little about
it. It is supposed to have a capacity around 80MB, has a 14" platter and
is real heavy; 120+ lbs, so shipping is probably out of the question.
Prime used to sell these. They were available in 32, 64 and 96 MB
models. The bottom section contains fixed platters. The top section
has a door which folds down, exposing a track onto which you can slide a
pack; as the door closes, the pack slides in and drops into the cavity.
The fixed capacity was 16, 48, or 80 MB depending on model, removable
pack capacity was about 16 MB. Filters are critical. They're SMD
interface devices. Part of the reason they're so heavy is that there's
a 1"+ thick base plate in there to keep the beast stiff. A 96MB model
has 5 fixed surfaces and one removable surface. The removable surface
is number 1; the fixed surfaces start at number 16.
I have a platter out of a pack which experienced a head crash in our
drive, years ago. When the room was air conditioned, the piping for the
air handler (a stand-in-the-corner model) was run out the window and up
to the roof. Since the window wouldn't close all the way, and this was
in what passes for a downtown district around here, pigeons had a
tendency to sit on the ledge, and occasionally a feather would stay
behind. One of these feathers inexplicably made its way into the drive
one day...
Grinding up disk oxide makes a _terrible_ smell.
De
21 Dec
21 Dec
6:33 p.m.
Prime used to sell these. They were available in 32,
64 and 96 MB
models. The bottom section contains fixed platters. The top section
Each data surfact stores 16Mbytes (or so).
The removeable pack has one data surface and one servo surface. There's
also a servo sufrace among the fixed platters -- the drive automatically
selects which servo head to used based on which data haed is selected.
The reason for the 2 servo surfaces is that the removeable pack may not
centre exaclty, so for repiable operation they took the positioner
reference from the fixed or removeable platters as appropriate.
A 32MB drive has one fixed platter (one data surface, one servo
surface).. So 16MB fixed, 16MB removable. A 64MB drive has 2 fixed
platters (3 data surfaces), so 48MB fixed, 16MB removeable. And finally
the 96MB one has 3 fixed platters (5 dfata surfaces), so 80MB fixed, 16MB
removable.
I do have the service manual for this drive. The thing I rememebr is that
you don't fiddle with the mechanics without reading it first, and even
then tread carefully. There are all sorts of special tools you may need.
-tony
22 Dec
22 Dec
2:55 a.m.
On Friday 21 December 2007 18:33, Tony Duell wrote:
I do have the service manual for this drive. The thing
I rememebr is that
you don't fiddle with the mechanics without reading it first, and even
then tread carefully. There are all sorts of special tools you may need.
That manual have "double sized" pages? That's what the one I have is like,
I
guess 11x17 or somesuch.
Not something I'd particularly want to tear into, really.
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
25 Dec
25 Dec
5:01 p.m.
New subject: Major technical milestone- 60 years
December 16, 1947 ( sixty years ago ) the transistor was developed by John
Bardeen , Walter Brattain, and William Shockley from Bell Labs.
The rest, as they say, is history !!
Best regards, Steven
5:23 p.m.
New subject: Major technical milestone- 60 years
Steven Canning wrote:
December 16, 1947 ( sixty years ago ) the transistor
was developed by John
Bardeen , Walter Brattain, and William Shockley from Bell Labs.
The rest, as they say, is history !!
Best regards, Steven
See Lilienfeld's January 1930 patent; 1, 745, 175.
FETs before bipolars.
Steve
5:31 p.m.
New subject: Major technical milestone- 60 years
Steven Canning wrote:
December 16, 1947 ( sixty years ago ) the transistor
was developed by John
Bardeen , Walter Brattain, and William Shockley from Bell Labs.
And 10 to 15 years before that, ARRL, in its magazine QST, published
schematics and all the other necessary info to build a solid state
audio amplifier. I seem to remember 1932 or there abouts.
The rest, as they say, is history !!
Best regards, Steven
.
22 Dec
22 Dec
1:11 a.m.
On Thursday 20 December 2007 20:22, Dennis Boone wrote:
The GRI system I had a few encounters with back in '85 or so had two drives of
this sort, in racks. We also had a customer that had brought one in, a
sort of a low-profile (less than desk height) floor-standing unit that I
think he said had been attached to a Wang computer or word processor or
something. That sucker was *heavy*! I forget now which is which, but each
of these had a fixed platter and a removable platter and in one case was 5MB,
in the other 10MB.
Somewhere I have a service manual for these drives.
It's a
Control Data CMD 9448-96 "phoenix" modular (removable/fixed) disk
drive in unknown condition. It reminds me of a RL01/02 disk. It looks to
have everything there but until I find a manual, I know little about
it. It is supposed to have a capacity around 80MB, has a 14" platter and
is real heavy; 120+ lbs, so shipping is probably out of the question.
Prime used to sell these. They were available in 32, 64 and 96 MB
models. The bottom section contains fixed platters. The top section
has a door which folds down, exposing a track onto which you can slide a
pack; as the door closes, the pack slides in and drops into the cavity.
The fixed capacity was 16, 48, or 80 MB depending on model, removable
pack capacity was about 16 MB. Filters are critical. They're SMD
interface devices. Part of the reason they're so heavy is that there's
a 1"+ thick base plate in there to keep the beast stiff. A 96MB model
has 5 fixed surfaces and one removable surface. The removable surface
is number 1; the fixed surfaces start at number 16. I have a platter out of a pack which experienced a
head crash in our
drive, years ago. When the room was air conditioned, the piping for the
air handler (a stand-in-the-corner model) was run out the window and up
to the roof. Since the window wouldn't close all the way, and this was
in what passes for a downtown district around here, pigeons had a
tendency to sit on the ledge, and occasionally a feather would stay
behind. One of these feathers inexplicably made its way into the drive
one day...
Grinding up disk oxide makes a _terrible_ smell.
I wasn't there when it happened, but I did acquire a platter that has a
similar issue. You can see a line going around one side of the platter. I
used to have it hanging on the wall in my shop...
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
6056
days inactive
6061
days old
8 comments
8 participants
participants (8)
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ard＠p850ug1.demon.co.uk -
cannings＠earthlink.net -
drb＠msu.edu -
john＠guntersville.net -
rollerton＠gmail.com -
rtellason＠verizon.net -
steve＠radiorobots.com -
tponsford＠rnsmte.com