Ruby EL84CZ Premium Matched

  • Item # 1007978
  • Model # TUEL84CZ-MQ-OLD
Top Rated

A premium tube that produces more power, more tone, and higher fidelity with an extended dynamic range. All Ruby output tubes are labeled on the base with the exact matching measurements for plate cur… Learn More


Non-Returnable Item

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The most powerful EL84CZ available!


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