The most powerful EL84 available!

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 current and transconductance. By matching these parameters, optimal performance and long life are ensured. Comes with a 6-month replacement warranty.

Ruby Tubes EL84 Premium Matched Features:

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

Put some heat into your output with a replacement tube. Order today!