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: RE: [AeroElectric-List] Questions about circuit protection

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jonlaury

Joined: 06 Nov 2006
Posts: 336

Posted: Fri Jan 08, 2010 8:59 am Post subject: : RE: [AeroElectric-List] Questions about circuit protection

Jay,

 You're probably right about noticing changes in  normal ops. Certainly so for the normal ops single fuel pump. The  resounding quiet of engine stoppage is tough to miss . But losing one  E-ignition is a barely noticeable event even during run-up and, as you say, one  would not feel/see/hear any change if one of a dual power source for an  EFI  dropped out. I like it that I can test the system, and reset the alarm  feature with the single (MOM) switch. And if the alarm feature fails, I still  have LED's firing up for blown fuses.

  

 When I first assembled an electronics kit, I  thought I was in terribly complex territory. But after I saw how small the  finished kit was and demonstrated its capability to provide a solution, I became  hooked! I frankly don't know what SCR's and some of the other  parts are in this circuit but they're inexpensive and I would  guess pretty reliable. The guy who designed this circuit is in the home/business  security biz. He outlined some possible problems in high electrical noise  environments but, with caveats, didn't think they would crop up in my  application.

  

 Here's the thread if you or anybody is  interested:

 http://forum.allaboutcircuits.com/showthread.php?t=30782

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