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Haha someone got that from me.  I am the one who originally put the FDA24N40F in a 4x amp back in like 2010.  I only told a few people.  Yes they do work.  Within 5-10% of the correct power output and they are like $3 each.  $1 each if you buy 1000.


I think I may even have some pictures to prove it.  Let me look for them.  That's been a decade ago though LOL.