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The LG262D single tube 6H30 dual channel preamplifier board can be replaced with 6H23, 6DJ8, 6N1. Good sound quality

S10 6DJ8 (ECC88) + 6N8P (6SN7) dual tube preamplifier, pre-biliary, high-frequency fine, low-frequency powerful，5Z4P Rectificate

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S10 6DJ8 (ECC88) + 6N8P (6SN7) dual tube preamplifier, pre-biliary, high-frequency fine, low-frequency powerful

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