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 Tubes EL34 Matched Tube Features:

• 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

Revive your gear. Order replacement tubes today!