Mellotronists

In a message dated 20/04/2006 23:28:04 GMT Standard Time, NormLeete@...  
writes:

Dear All,
 
35 notes, probably something to do with capstan length... How long a  capstan 
could you reliably make?
 
Norm




This is a good point although a little intense!  MKII capstans  were ground 
to 3/10ths of a thou. along their entire length.  Some  achievement in 1964.  
The normal commercial tolerance for ground shafts is  1 thou. which would be 
audibly diabolical.  We hunted high and low to find  a supplier who could match 
and if needs be, improve on the original  tolerance.  Any more run out and you 
would hear it instantly.   M300s can suffer with capstan judder as the extra 
long capstan is unsupported in  the middle and this allows for deflection and 
ringing.  They can be an  utter bloody nightmare to dampen.  You can find out 
more in Capstan  Monthly, available weekly from any butchers.
 
Best,

 
Martin
 

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