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[4K] Resonant VVVF sound! Seibu Yamaguchi Line 8500 Series Leoliner (Hitachi IGBT-VVVF) Arrival, departure, and running scenes + running sound with in-car footage (Yuenchi West ⇒ Seibu Yuenchi) *This is a video of the 8500 Series train that runs on the Seibu Yamaguchi Line. When it was introduced, it was equipped with Hitachi's early GTO-VVVF, but since 2001, the equipment has been gradually updated to Hitachi IGBT-VVVF.