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Source & Line amp & Amplifier Project ผลงาน DIY => Vacuum Tubes => ข้อความที่เริ่มโดย: CreÃte_Lek ♫ ที่ 06 ธันวาคม 2020, 12:35:58 PM
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- https://worldradiohistory.com/Archive-All-Audio/Archive-Audio-Magazines-Other/Archive-Vacuum-Tube-Valley/Vacuum-Tube-Valley-02.pdf
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- https://www.pearl-hifi.com/06_Lit_Archive/02_PEARL_Arch/Vol_16/Sec_53/VTV/03_01_Winter_95-96.pdf (https://www.pearl-hifi.com/06_Lit_Archive/02_PEARL_Arch/Vol_16/Sec_53/VTV/03_01_Winter_95-96.pdf)