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Ruby

collapse expand iconDescription

The Ruby EL84CZ premium tube matched pair are exclusive with large bottles, gold-plated grids and extra internal anchoring. All Ruby output tubes are labeled on the base with the exact matching measurements for plate current and transconductance. By matching these parameters, optimal performance and long life are ensured.
Ruby EL84CZ Premium Tube Matched Pair Matched Pair

collapse expand iconFeatures

  • Labeled with matching measurements for plate current and transconductance
  • Optimal performance and long life
  • 6-month replacement warranty

collapse expand iconSpecs

  • Style 2: Duet
  • MPN: TU EL84CZ –MP
  • Brand: Ruby

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  • submitted3 years ago

    asked bycourious

    fromBaltimore

    Where are they made.

    Where are they made.

    Open Reply - Thomas
    Slovakia

  • submitted3 years ago

    asked bycourious

    fromBaltimore

    Will these tubes work with my Mesa Boogie Express 5:25

    Will these tubes work with my Mesa Boogie Express 5:25

    Open Reply - Thomas
    Yes. Please see "https://mesa-boogie.imgix.net/media/User%20Manuals/expressPlus_121113.pdf"

  • submitted4 years ago

    asked byHoosierTim

    fromundisclosed

    The description reads "Ruby" but the photo shows JJ tubes. Which is it?

    The description reads "Ruby" but the photo shows JJ tubes. Which is it?

    Open Reply - Thomas
    They're Ruby