20 Sep
2004
20 Sep
'04
8:02 a.m.
Sloooowly I get stuff up on the website...
http://wps.com/projects/LGP-21/Documentation/Photos/index.html
This URL is in the index, but I've added some photos. If you scroll down
there's some photos of the memory, heads, platter, scratches, the
caplugs, etc.
(After careful dust removal, I keep a lint-free washed towel over the
top of the memory assembly. No sense inviting more dust in there.)
20 Sep
20 Sep
9:46 a.m.
On Mon, 20 Sep 2004, Tom Jennings wrote:
Sloooowly I get stuff up on the website...
http://wps.com/projects/LGP-21/Documentation/Photos/index.html
This URL is in the index, but I've added some photos. If you scroll down
there's some photos of the memory, heads, platter, scratches, the
caplugs, etc.
(After careful dust removal, I keep a lint-free washed towel over the
top of the memory assembly. No sense inviting more dust in there.)
Ok, for some reason I had in mind that this was a drum. I actually have
that drive in my collection. Yours is in WAY better shape though. I
think mine sat outside in the elements for a while before I got it.
It makes sense, since the drive was manufactured by Librascope-General
Precision (i.e. LGP). I found some marketing literature for it while
going through some documents at the Computer History Museum a while back.
I can make a copy for you if you like.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
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10:09 a.m.
On Mon, 2004-09-20 at 14:46, Vintage Computer Festival wrote:
On Mon, 20 Sep 2004, Tom Jennings wrote:
re: LGP-21 memory
> http://wps.com/projects/LGP-21/Documentation/Photos/index.html
Ok, for some reason I had in mind that this was a
drum. I actually have
that drive in my collection. Yours is in WAY better shape though. I
think mine sat outside in the elements for a while before I got it.
The surface is nickel-plated. Nickel is pretty rugged and chemically
inert relative to other metals. Even if it's got dirt in it and had
moisture/water, it may actually be usable, or recoverable. Don't rotate
it! The heads I think are ceramic and enamelled copper wire, electronic
stuff survives water pretty well unless there was dissimilar-metals type
electrocorrosion going on.
If I work out a recovery scheme, maybe I'll ask to borrow it, clean it,
power it up and recover it and give it back to you.
I found some marketing literature for it while
going through some documents at the Computer History Museum a while back.
I can make a copy for you if you like.
I would *love* to have copies and of course originals if available.
Copies would be fine, and if they're at the museum, maybe I can
photograph the covers for a sense of color etc when I come up for VCF.
2:11 p.m.
On Mon, 20 Sep 2004, Tom Jennings wrote:
Too late :(
The model I have (according to the tag) is L-321-1. I have sales lit. for
the Model L-323 and the Series L-300 in general. I believe I know where
the originals are at the CHM. If you have a fax number then I'll fax over
copies tonight or thereabouts.
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
Ok, for some
reason I had in mind that this was a drum. I actually have
that drive in my collection. Yours is in WAY better shape though. I
think mine sat outside in the elements for a while before I got it.
The surface is nickel-plated. Nickel is pretty rugged and chemically
inert relative to other metals. Even if it's got dirt in it and had
moisture/water, it may actually be usable, or recoverable. Don't rotate
it! The heads I think are ceramic and enamelled copper
wire, electronic
stuff survives water pretty well unless there was dissimilar-metals type
electrocorrosion going on.
The disc in some places is fairly scratched, but it doesn't sound too much
worse than how you've described seeing other discs. The resistor array on
one head section has been completely ripped off. The other head sections
all seem to be intact with interconnecting wires. It probably needs some
work.
If I work out a recovery scheme, maybe I'll ask to
borrow it, clean it,
power it up and recover it and give it back to you.
That would be swell.
I found some
marketing literature for it while
going through some documents at the Computer History Museum a while back.
I can make a copy for you if you like.
I would *love* to have copies and of course originals if available.
Copies would be fine, and if they're at the museum, maybe I can
photograph the covers for a sense of color etc when I come up for VCF.
7399
days inactive
7399
days old
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