Ruby EL34 Matched Power Tubes Quartet #8210js

Ruby EL34 Matched Power Tubes QuartetRuby 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 exclusiveLarge bottleGold-plated gridExtra internal anchoringLabeled on the base with plate current and transconductanceMatched parameters for optimal performance and long life6-month replacement warranty
Ruby 212033.186 – Ruby EL34 Matched Power Tubes Quartet – musical instruments

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