[Milsurplus] DAV-2 On Off Wiring

[B Smith]

I have some questions concerning the DAV-2 On-Off switch wiring. 

Schematic link at the bottom.

On the DAV-2 set why are the receiver ear pieces  connected to the A + when
the set is turned ON?
 
  Why do they connect the receiver ear pieces  through the output
transformer
and back to A +  when the set is turned OFF.

Yes, I checked the wiring and it is wired IAW the manual.
 
 
Please see:

(http://k4che.com/DAV%20Mystery/DAV-2%20Wiring.htm) 

73

breck k4che