31 Mar
2004
31 Mar
'04
2:45 a.m.
On Wed, 31 Mar 2004, Ethan Dicks wrote:
On Tue, Mar 30, 2004 at 01:00:21PM -0800, Tom Jennings
wrote:
The Librascope L321 fixed-head drive I've got is coated with cobalt
according to the literature.
--
Sellam Ismail Vintage Computer Festival
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LGP-21 fixed-head-platter mechanical memory (main
store,
not "disk") the heads sit crashed (sic) and lift when up to
speed. The platter surface has fine scoring -- it's normal. It's
only 80 bits per inch. Nickel plated steel. In fact, there's
little springs that press the heads DOWNWARD.
Sounds a bit like the DEC DF-32 - 1/4" steel platters plated with something
(nickel?) The drive motor has a seperate power switch from the electronics,