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Essential Bus Diode Voltage D-25 voltage drop of 2.3V?

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nuckolls.bob(at)aeroelect
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Posted: Sat Jun 06, 2020 6:20 pm Post subject: Essential Bus Diode Voltage D-25 voltage drop of 2.3V?

 	  Quote: 	
		  

 What should I check to track down this increase in voltage drop? 

 	


   Get your voltmeter out, ground the (-) lead and then

   probe the pathway from main bus through the diode

   to the e-bus.



   I've never seen a diode fail in such a manner.  You

   could swap a new one in temporarily as part of the

   investigation but I don't think your going to find

   that to be root cause.



  	  Quote: 	
		  Should I just swap in another D-25?  I've been flying for 350hrs.  



 Is there another diode of choice now of a Diode I can use to swap in its place?  Where can I purchase the AEC9001 Schottky Power Diode if that's a better option. 	


   Pull the fast-ons off the old diode and push them

   onto a new diode without mounting it to get a quick

   voltage check. You're going to have to crawl around

   under there to get at the pathway joints anyhow.

   Return on investment for 'going Schottky' is limited.



 

 

   Bob . . .

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