24 Nov
2007
24 Nov
'07
10:13 a.m.
On Sat, 2007-11-24 at 00:02 +0000, Tony Duell wrote:
That said, the only drives I have which are 360rpm are
8" ones iwth
mains-powered motors. Since the spindle speed is determined by the mains
frequency (unless the belt is slipping or something), there's little
point in having a stroboscpe disk o nthe spidnle, to check the speed
against that same mains freqeuncy. So I've never seen a strobe sdisk on
such a drive.
I'm vaguely reminded of my late father absent-mindedly fiddling with the
frequency counter he built, and (momentarily) being terribly impressed
that its 1MHz clock was running at dead-on 1000000Hz...
Gordon