[Amps] how to make an HF dual directional coupler?

[G3rzp@aol.com]

You can find info on dual directional couplers in:
 
ARRL Handbooks for about the last four or five years.
Wes Hayward's book on RF Design.
At least one of the ARRL antenna books.
 
73
 
Peter G3RZP