Help with Shugart SA801 8" floppy with 230v 50 cycle

[Chuck Guzis]

On 25 Nov 2008 at 21:49, dwight elvey wrote:

>  When we ground the pulley down, we checked the rate as
> we ground it down. What I'd like to know is how does one
> pedict the effective diameter when the pulley is crowned,
> as in the SA800?

I measured the pulley across its widest part (i.e. top of the crown). 
My (perhaps flawed) logic was that it was the highest part of the 
crown that determined the speed.  Were it otherwise, the speed would 
be related to the width of the belt.

Cheers,
Chuck