22 Dec
2011
22 Dec
'11
12:46 p.m.
Someone did an impressive job of destroying this to make it look "pretty"
http://www.ebay.com/itm/300640339205
22 Dec
22 Dec
1:46 p.m.
Al Kossow wrote:
Someone did an impressive job of destroying this to
make it look "pretty"
http://www.ebay.com/itm/300640339205
Interesting item; anyone have a reference to what the intact unit looked
like? I don't think I've ever seen rotating platter-type storage with so
many fixed heads (it seems like an evolutionary step between drum stores
and modern drives).
Although... is it even computer-related? It just struck me that it might
have had applications elsewhere (telecoms, TV etc.) rather than computing.
cheers
Jules
2:12 p.m.
On 12/22/11 10:46 AM, Jules Richardson wrote:
Al Kossow wrote:
It is the disk for the Autonetics D-17B
you can the the bottom of it in
http://en.wikipedia.org/wiki/File:Autonetics_D-17.JPG
they've cut every wire going to the 37 pin connectors.
Someone did an impressive job of destroying this
to make it look "pretty"
http://www.ebay.com/itm/300640339205
Interesting item; anyone have a reference to what the intact unit looked like?
2:19 p.m.
On 12/22/11 11:12 AM, Al Kossow wrote:
It is the disk for the Autonetics D-17B
my mistake, I dug out some D-17 pictures and it more heads than is shown.
the part number in the auction is 55300-304-31, the D-17 is 55380-304
It may be from a Recomp-II, will have to dig some more in the docs I have
since it is earlier than the D-17 based on part number
2:37 p.m.
On 12/22/2011 06:46 PM, Al Kossow wrote:
Someone did an impressive job of destroying this to
make it look "pretty"
http://www.ebay.com/itm/300640339205
What disk is that? DF32 or some kind of RK?
/P
6:10 p.m.
On Thu, Dec 22, 2011 at 2:37 PM, Pontus <pontus at update.uu.se> wrote:
On 12/22/2011 06:46 PM, Al Kossow wrote:
Neither. Others here have been discussing that it's a Recomp disk (a
system I know nothing about). A DEC DF32 would have many fewer heads
and a very thick (6mm? 8mm?) platter. AFAIK, all RK disks have a
linear positioner.
-ethan
Someone did an impressive job of destroying this to make it look "pretty"
http://www.ebay.com/itm/300640339205
What disk is that? DF32 or some kind of RK? 
7:36 p.m.
On 2011 Dec 22, at 3:10 PM, Ethan Dicks wrote:
On Thu, Dec 22, 2011 at 2:37 PM, Pontus <pontus at
update.uu.se> wrote:
I didn't know anything about the Recomp-II before either. There is a
brochure in the bitsavers directory:
http://www.bitsavers.org/pdf/autonetics/recomp/
that presents an overview of the machine, and the pics directory has
some great photos showing the internals.
Desk size, solid-state, disk-based-memory, targetted at engineering-
type problems. In a class kind of like the vacuum-tube, drum-memory
Bendix G15, I'd say.
I wonder how much design influence the Recomp-II may have had on the
Minuteman GC (D-17B), looks like there could have been some
continuance there.
On 12/22/2011 06:46 PM, Al Kossow wrote:
Neither. Others here have been discussing that it's a Recomp disk (a
system I know nothing about). A DEC DF32 would have many fewer heads
and a very thick (6mm? 8mm?) platter. AFAIK, all RK disks have a
linear positioner.
Someone did an impressive job of destroying this to make it look
"pretty"
http://www.ebay.com/itm/300640339205
What disk is that? DF32 or some kind of RK? 
11:02 p.m.
Someone did an impressive job of destroying this to make it look
"pretty"
http://www.ebay.com/itm/300640339205
Absolutely disgusting. I wonder what became of the rest of it. So sad.
Rick
4545
days inactive
4546
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9 comments
7 participants
participants (7)
-
aek＠bitsavers.org -
ethan.dicks＠gmail.com -
fraveydank＠gmail.com -
hilpert＠cs.ubc.ca -
jules.richardson99＠gmail.com -
pontus＠update.uu.se -
rickb＠bensene.com