[Elecraft] D 104 mic with K2

[K9ut at aol.com]

I would like to try the D 104 Mic. (crystal element )  in the K2 . I  
remember a circuit posted on the reflector on this , can anyone help ? 
 
 
 
 
 
 
 
 
 
 
 
 
 
       Thanks ,72, 73,
        Jerry Uhte K9UT K2  #  1273