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Balancing Cockpit Lights

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Phil.Perry(at)netapp.com
Guest

Posted: Fri Jan 01, 2010 11:49 am Post subject: Balancing Cockpit Lights

As I’m working through the schematics for my system, I’ve got annunciator lights for a handful of different scenarios.  Low Voltage, Over Voltage, Flap Motor, etc…..  

   

Some of lights are included as parts of a subkit (IE: Voltage Reg) while others are built by me.  I’m concerned that some lights will be brighter than others and they will not be uniformly lit on the panel.  

   

<![if !supportLists]>1)      <![endif]>What’s the process for balancing lights?  

<![if !supportLists]>a.       <![endif]>In-line resistors.  Trial and Error until you find one you can live with?  

<![if !supportLists]>b.      <![endif]>In-line Pots.   You can adjust them individually behind the panel?   

<![if !supportLists]>c.       <![endif]>Different light bulbs?  

   

Also,  I’d ultimately like to put all of the cockpit lighting behind a single dimmer switch.  I’m guessing that’s accomplished by grounding all the lights to (and through) a dimmer switch.  Correct?  

   

Thanks for the help.  Have a happy and productive 2010.  

   

Phil  

   

   

      [quote][b]

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mauledriver(at)nc.rr.com
Guest

Posted: Fri Jan 01, 2010 1:50 pm Post subject: Balancing Cockpit Lights

I don't think 'balancing' is a concern.  They are all 'on' or 'off' and will get 12 volts when 'on'.



I'm midway thru my dimming setup and it seems to me that I'll need 1 dimmer for all my Honeywell switches and indicators, another for cockpit map lighting, and I'm hoping only 1 for the various avionics that have dimmer functions.  The last case may be an issue but I hope not.



Bill 'the day after' Watson



---- "Perry wrote: 

 	  Quote: 	
		   As I'm working through the schematics for my system, I've got

 annunciator lights for a handful of different scenarios.  Low Voltage,

 Over Voltage, Flap Motor, etc.....

 

  

 

 Some of lights are included as parts of a subkit (IE: Voltage Reg) while

 others are built by me.  I'm concerned that some lights will be brighter

 than others and they will not be uniformly lit on the panel.

 

  

 

 1)      What's the process for balancing lights?

 

 a.       In-line resistors.  Trial and Error until you find one you can

 live with?

 

 b.      In-line Pots.   You can adjust them individually behind the

 panel? 

 

 c.       Different light bulbs?

 

  

 

 Also,  I'd ultimately like to put all of the cockpit lighting behind a

 single dimmer switch.  I'm guessing that's accomplished by grounding all

 the lights to (and through) a dimmer switch.  Correct?

 

  

 

 Thanks for the help.  Have a happy and productive 2010.

 

  

 

 Phil

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