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PSVANE Vacuum Tube 12AU7-S ECC82 12AX7-S ECC83 12AT7-S ECC81 EL84-S HIFI Audio Valve Tubes Electronic Tube Amplifier Genuine - AliExpress
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NP-100v12: DIY 12AU7 (ECC82) Tube / IRF510 MOSFET Headphone Amplifier under Repository-circuits -24641- : Next.gr
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12AU7 Browning Laboratories Twin Triode Amplifier ECC82 9-pin Vintage Miniature Vacuum Tube ECC82 NOS New Old Stock
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