From: fizzbintuesday@that-google-mail-domain.com   
      
   Helmut Wabnig wrote:   
   > On Tue, 24 Aug 2021 04:44:02 -0400, "Tom Del Rosso"   
   >  wrote:   
   >   
   >> AIUI you use iron cores for low frequency and ferrite for high   
   >> frequency because ferrite doesn't get magnetized, so why couldn't   
   >> aluminum do the same?   
   > An aluminium core would act as a short circuit.   
   > Will heat up and eventually melt.   
      
   More so than an iron core?   
      
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