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Nobsound Vintage Desk 6× IV-11(ИВ-11) Vacuum Nixie Tube VFD Clock Remote DIY KIT

6H2N + 6P6P luxury tube amplifier DIY kit, dual 6Z4 bile rectifier amplifier,sweet tone, full of charm

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6N1 push 6P1 tube amplifier kit tube amplifier DIY board include transformer （not include the tubes）

AC 12V 1A 6J1 Value Preamp Tube Preamp Amplifier Board PreAmplifier Headphone DIY Kits

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Tube 6N3 SRPP DIY Dual 180V-230V Buffer Preamplifier Pre AMP kit

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B-Best-Selling-6J1 Hifi DIY Electronic Tube Preamplifier Kit Preamp Amplifier Module With Bile Amp Effect For Audio Enthusiasts

ZK-MT21 100W+2*50W 2.1 Channel Subwoofer Digital Power Amplifier Board AUX 12/24V Audio Stereo Bluetooth 5.0 Amp HiFi For Home

Tube Amplifiers o board Amplifier Pre-Amp o Mixer 6J1 Valve Preamp Bile Buffer Diy Kits

2PCS 6K4 Electronic Tube Valve Vacuum Tube Replacement for 6AK5/6AK5W/6Zh1P/6J1/6J1P/EF95 Amplifier DIY Preamp Vacuum Tube