[R-390] Spinner knob for R-390

[R390rcvr at aol.com]

Good day all:
 
Someone on the list used to modify the KC knob with a spinner. I remember  
seeing a picture of one, but have lost track of his address and name.
 
Does this ring a bell with anyone?
 
The other question is whether anyone has made a geared KC knob to slow down  
the tuning rate for SSB and CW work.
 
I was laying in bed working out the gearing arrangement for such a critter  
this am. 
 
Must be some type of fever. Oh yeah, its called boat anchor fever!
 
Take care!
 
Randy