FD400 drive troubleshooting

Fri Nov 23 21:08:06 CST 2007

On 24 Nov 2007 at 0:02, 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.

No, but 5.25" HD drives as well as 3.5" drives for the NEC 9801-type 
platforms do spin at 360 RPM.  

Cheers,
Chuck