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     1. 06:40 PM - Bose A20 Headset - NR Power Button - Panel Power (Matt Dralle)
 
 
 

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Time: 
06:40:44 PM PST US
From: 
Matt Dralle <dralle@matronics.com>
Subject: 
Bose A20 Headset - NR Power Button - Panel Power
      
      
      
      Dear Listers,
      
      I bought a couple pairs of the new Bose A20's for the RV-8 and they are very nice.
      NR is better than the Bose X's and they seem to fit my head a little better
      too.  
      
      But I quickly discovered that with the A20's you now have to hit the NR Power button
      *every time* you start the aircraft even if you have them panel powered.
      The older Bose X headsets have a slide switch for the NR power and so you can
      just put the slide switch in the On position and not worry about it.  
      
      I really didn't like having to turn the NR on all the time and having to remind
      my passengers about it, so I came up with a modification that will automatically
      turn the NR on when panel power is applied.  Its pretty simple, but requires
      some special tools.  Its completely self-contained inside the Control Module
      and works great.  The modification is generally only for installations that
      are panel-powered, but you could do the modification to a unit that is normally
      battery powered with no adverse effect.  With the modification, the NR Power
      button will work normally in battery power installations.
      
      I created web page on the procedure including step-by-step photos and instructions.
      Feedback is welcome.
      
      http://www.matronics.com/BoseA20AutoOnModification/
      
      Matt
      
      
      -
      Matt Dralle
      RV-8 #82880 N998RV "Ruby Vixen"
      http://www.mattsrv8.com - Matt's Complete RV-8 Construction Log
      http://www.mattsrv8.com/Mishap - Landing Mishap Rebuild Log
      http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
      Status: 170+ Hours TTSN - Rebuilding Fuselage After Landing Mishap... 
      
      








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