Ray Tubes SELECT 5U4 Speaker Stand Fixed Bias: 0

Fixed Bias: 0

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Ray Tubes SELECT 5U4 Speaker Stand Fixed Bias: 0The Ray Tubes SELECT 5U4 is a meticulously selected full wave rectifier tube that supports clean and consistent power delivery in tube amplifiers. Hand selected from strict production standards, this tube contributes to a smooth top end, rich midrange presence, and solid bass foundation, enhancing overall musical coherence and depth. Technical Specifications Tube Type: 5U4 Socket: 4 pin Filament Voltage: 5 V Filament Current: 3 A Peak Inverse Plate