Best Way to Mark Tubes for Testing?

Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by corn husk bag, Apr 28, 2016.

  1. corn husk bag

    corn husk bag Silver Supporting Member

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    Pacific Northwest (Washington)
    I am going to have multiple NOS power and pre-amp tubes tested. What is the best way to mark them so I make sure I am getting my original tubes back. Also what is the best way to mark the results?

    Thank you!
     
  2. treedroppings

    treedroppings Member

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    Location:
    San Jose, CA
    Use a grey marker on the inside holes at the bottom of the valves.
     
  3. drbob1

    drbob1 Silver Supporting Member

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    You can mark the results with felt pen (will wipe off), grease pencil, or on the box with anything.
     
  4. teleman1

    teleman1 Supporting Member

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    I found these small foil plastic bags that are clear on one side that seal. They are about half the size of a dollar bill and offer protection and you can label the package.
     

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