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Ask an Expert Forum Source of replacement parts for Tenma 72-4045A Benchtop Power Supply?
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Source of replacement parts for Tenma 72-4045A Benchtop Power Supply?

Electrojim
Electrojim over 2 years ago

I have a Tenma 72-4045A Triple-Output Benchtop Power supply with a plastic panel overlay that has turned a putrid color that is nearly opaque. Any chance of obtaining a replacement?

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Top Replies

  • anniel747
    anniel747 over 2 years ago +2
    Did you try Retrobright?
  • Electrojim
    Electrojim over 2 years ago in reply to anniel747 +1
    I had never heard of that stuff, but have looked into it and it seems like magic sauce. I'll get some, many thanks!
  • anniel747
    anniel747 over 2 years ago

    Did you try Retrobright?

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  • Electrojim
    Electrojim over 2 years ago in reply to anniel747

    I had never heard of that stuff, but have looked into it and it seems like magic sauce.  I'll get some, many thanks!

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  • anniel747
    anniel747 over 2 years ago in reply to Electrojim

    Thumbsup

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  • anniel747
    anniel747 over 2 years ago in reply to Electrojim

    https://retr0bright.com/

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  • cstanton
    cstanton over 2 years ago in reply to anniel747

    Weirdly, also leaving the plastic out in strong sunlight can work to reverse yellowing, even though that's usually what causes it in the first place!

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  • anniel747
    anniel747 over 2 years ago in reply to cstanton

    That's partly how Retrobright works but UV alone will also erase any lettering present on the plastic.

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