[GreenKeys] got pics gray and danielson wireless recv. cool loose coupler...made. in SF! ??

[COURYHOUSE at aol.com]

got pics gray and danielson wireless recv. cool loose coupler...made. in  
SF!
They eventually  became  remler  this  seems to  be  almost like a 
commercial wireless recv.. or military unit?.   cool  loose  coupler  cord and pully 
driven.
 
what this means  is there must be a gray an danielson  tube  detector  box 
too maybe or a crystal detector?   Unit Is   made in  SF.  anyone know about 
this?  we have had it  for  30 years...  ed#  _www.smecc.org_ 
(http://www.smecc.org/) 
 
 

 


 

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