[time-nuts] How to read Isotemp OXCO131 part numbers?

[GandalfG8 at aol.com]

In a message dated 02/01/2012 23:53:41 GMT Standard Time,  
azelio.boriani at screen.it writes:

Yes,  seems difficult to find the differences but I've found at least the
131-2:  http://w9fz.com/ham/OCXO131-2Spec.pdf
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Some more here.....
 
_http://www.isotemp.com/wp-content/uploads/2011/07/_ 
(http://www.isotemp.com/wp-content/uploads/2011/07/) 
 
and here.....
 
_http://www.isotemp.com/wp-content/uploads/2011/10/_ 
(http://www.isotemp.com/wp-content/uploads/2011/10/) 
 
Plus some other info on the associated pages to these links.
 
Regards
 
Nigel
GM8PZR