From: scientist77017@gmail.com   
      
   On Wednesday, June 5, 2019 at 5:45:10 PM UTC-5, Rheilly Phoull wrote:   
   > On 5/06/2019 11:03 pm, AK wrote:   
   > > When I changed my tip on my Chinese copy of a Hakko wannabe, I saw a small   
   amount of black powdery residue that came out. I have used the soldering   
   around 50 times. Is that part of a carbon rod?   
   > >   
   > > Thanks,   
   > >            Andy   
   > >   
   >   
   > You are probably thinking of the old scope irons that used the "carbon" tip   
      
   No, the heater looks the color of pencil lead.   
      
   Andy   
      
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