15 Oct
2008
15 Oct
'08
5:42 p.m.
Steven Hirsch wrote:
On Sat, 11 Oct 2008, Fred Cisin wrote:
That's not entirely correct. Amiga 3000 and 4000 machines had a
Chinon drive mechanism that could run at 1/2 speed in order to write
hi-density formats with an FDC chip no capable of running at high data
rates.
Is the interface on those drives compatable enough with non
Amiga equipment such that if you had one, you could it on a
'double density' controller and do HD ? Or did Amiga 'mangle'
the interface too far from standard ? Did the drive adjust speed
on it's own (by detecting the HD hole) or did the Amiga have to
tell it what speed to run ?
-- Curt
Also,
anyone know if there if it is possible to slow the spindle speed
so that 1.44M can be done on machines that only have DD data rate ?
(and if so, any of the above drives capable of being slowed ?) Would
that even work ?
Nobody has successfully used a 3.5" at 150RPM. Yet.
Besides the "normal" 300RPM drives, there are some 600RPM (old Sony),
and
360RPM (NEC and a few others)