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220V 5.4w + 5.4w 6n2 push 6P13P tube amplifier, pure bile rectifier 6p13p amplifier 6p13p class A single-ended amplifier

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Upgrade 10W*2 EL34 high-power fever tube tube amplifier power amplifier kit, bile rectifier single-ended class A power amplifier

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6N8P push FU7 single-ended tube amplifier 5Z3P bile rectifier 9W * 2 tube amplifier, fever tube amplifier, sweet tone

6N2 6P6P Tube Power Amplifier DIY Kit Bile Rectifier Sweet And Soft Voice Natural Concerns Especially Large Dynamic Range