brian_donaldson3 Posted December 10, 2013 Share Posted December 10, 2013 <p>Anyone have the pinout for the external power connector on the 550EX? I know there are three pins and my guess the center would possibly be negative (-) or ground.</p> <p>Thanks</p> Link to comment Share on other sites More sharing options...
sarah_fox Posted December 10, 2013 Share Posted December 10, 2013 <p>I took a different approach with mine. You can do it with Buss RFN-R-30 30A fuses, which are exactly the size of AA batteries. See the 2nd photo here:</p> <p>http://graphic-fusion.com/vivitar285mods.htm</p> Link to comment Share on other sites More sharing options...
brian_donaldson3 Posted December 11, 2013 Author Share Posted December 11, 2013 <p>Yeah, you guessed where I was going with this. Nice link. Never thought to use 30 amp fuses. :)</p> Link to comment Share on other sites More sharing options...
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