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Ruby EL34 Matched Power Tubes  Quartet

(Quartet)  Sku #212033000000186

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Formidable output and rugged construction!

Ruby exclusive with large bottle, gold-plated grid, 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. Comes with a 6-month replacement warranty.

  • Ruby exclusive
  • Large bottle
  • Gold-plated grid
  • Extra internal anchoring
  • Labeled on the base with plate current and transconductance
  • Matched parameters for optimal performance and long life
  • 6-month replacement warranty
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by PowerReviews
RubyEL34 Matched Power Tubes

(based on 2 reviews)

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Reviewed by 2 customers

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Ruby EL34 Matched Quartet


from Camden NY

About Me Professional Musician

Verified Buyer


  • Good Quality
  • Improves Sound


    Best Uses

    • Concerts
    • Practicing

    Comments about Ruby EL34 Matched Power Tubes:

    These were installed in a Peavey 3120 head. I am repairing this amp. They sound great and the price was very reasonable. And they match up very well with each other. I am extremely pleased with this purchase and I am sure my customer will be too.


    Ruby EL34R-STR


    from Undisclosed

    Comments about Ruby EL34 Matched Power Tubes:

    Great tubes, no one would believe that a tube that sounds this good could come out of China!

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