Rusted transformers

Discussion in 'The Workbench' started by Cstell, Dec 2, 2021.

  1. Cstell

    Cstell New Member

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    Just curious how rusted transformers could affect tone. Is there a way to safely remove it or is it best to leave it be? Any input would be appreciated!

    Chris
     
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  2. MonstersOfTheMidway

    MonstersOfTheMidway Well-Known Member

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    A little rust is usually not a bad thing, so in that case I'd just leave it alone.

    Do you have any pictures of the rusted transformer in question?
     
  3. anitoli

    anitoli Well-Known Member Gold Supporting Member

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    Exterior rust on the lamination's has no effect on tone whatsoever. Ignore it.
     
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  4. Chris-in-LA

    Chris-in-LA Well-Known Member

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    Rust! I used to live by the beach. No problems so far.

    6B1EAD69-368C-4349-9B26-38F57C1F9437.jpeg
     
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  5. pedecamp

    pedecamp Well-Known Member

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    But if the op wanted couldnt he clean the rust off and paint the transformer with varnish?
     
  6. ampeq

    ampeq Well-Known Member

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    Yep. The only way this would be a problem is if the rust was separating the plates. To go that far it would be IN the ocean.
     
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  7. pedecamp

    pedecamp Well-Known Member

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    Maybe some electronic cleaner and a stiff toothbrush could get the rust off without making too much of a mess.
     
  8. ampeq

    ampeq Well-Known Member

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    3M Scotch Brite works best. I would do it dry though, rust is like a cancer. Unless you completely remove it, it will never stop. And you don’t want it to run down between the plates where it can start to separate them. I think a lot of transformers have a little surface rust because they are raw steel usually. I have a huge one on the floor of my shop a guy gave me that is almost new and it’s rusty too.
     
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  9. EADGBE

    EADGBE Well-Known Member

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  10. pedecamp

    pedecamp Well-Known Member

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  11. Chris-in-LA

    Chris-in-LA Well-Known Member

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    I knew it, rust means mojo
     
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  12. Old Punker

    Old Punker Well-Known Member

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    :agreed:

    I've heard the same thing, I wouldn't try to remove it.
     
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  13. Matthews Guitars

    Matthews Guitars Well-Known Member

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    If it really bugs you use a NYLON bristle brush to remove loose rust. Then paint it black if you want it to look nice.

    What you don't want to do is cause the laminations to become electrically connected to each other. They have an insulating oxide layer on them that keeps them electrically isolated, and if you brush off the rust with a steel bristle brush, you might cause them to connect to each other which will increase hysteresis losses in the transformer.
     
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  14. Old Punker

    Old Punker Well-Known Member

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    Had to look that one up...

    [​IMG]
     

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