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The first video of the new year is a collection of VVVF sounds of the 207 series, which is used by JR West on the Urban Network. Almost all variations have been recorded. 0:00 H formation: Unupdated Mitsubishi PTr-VVVF + GTO thyristor chopper combined + Toshiba GTO-VVVF 0:27 500s are Mitsubishi PTr + chopper, 1500s are Toshiba GTO 1:21 T and S formations: 1000s not updated Toshiba GTO-VVVF 2:04 H formation: Updated Mitsubishi IGBT-VVVF + Toshiba IGBT 2:29 1500s are Toshiba IGBT, 500s are Mitsubishi IGBT 3:16 Z formation: 0s updated Mitsubishi IGBT-VVVF 4:09 H9 formation: IGBT element VVVF test car: Unupdated, but only Moha 207-511 updated to IGBT element 5:08 T and S formations: 1000s updated Toshiba IGBT-VVVF 6:02 2000 series Mitsubishi IGBT-VVVF 6:56 2000 series Toshiba IGBT-VVVF 7:53 [Bonus] Already extinct Z formation 0 series unupdated car Mitsubishi PTr-VVVF + GTO thyristor chopper combination #JR West #207 series #vvvf inverter