[Amps] Fillament choke

[Dave M]

I am sure there is going to be a simple answer , but why are ferrite rods the "preferred" method of construction verses toroid cores, I ask because I have a few ft240-43 cores and only 1 rod, winding 10 gauge on a core may be more difficult but there must be another reason ?


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Thanks and
 
73 Dave VE3DV / VE3BNF