KT88/6550 Sovtek Output Power Tube. Highest Output Power and the Most Reliable, Linear Performance Available In A KT88. Unique Tri-Alloy Plate Structure of the Sovtek KT88 Yields Higher Minimum Plate Current and Higher Transconductance While Improving Heat Dissipation and Reducing Tube Warm-Up Time. Triple-Carbonate Oxide Cathode Allows Operation at Full Power for Extended Time Periods Without Failure.
More Precise Tube Matching with Minimal Drift while Still Maintaining tonal Clarity.