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The power electronics was also updated (using IGBT in place of GTO - which also means that they no longer sing the octave when starting).

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This train is a Keikyū 2100 series from Tokyo.

Its GTO-VVVF propulsion system was supplied by Siemens. The ability to produce a "fa-so-la-ti-do-re-mi-fa-so" scale when the propulsion starts up quickly became a signature to the 2100 series when it was introduced, earning the nickname as the "singing train" (歌う電車). Subsequently, similar propulsion was also installed on 56 cars of the N1000 series. The uniqueness of the propulsion system made its way into various music and popular culture, such as Super Bell"Z. However, it was reportedly expected that this feature may soon disappear, as substitute parts are no longer available when the propulsion system is due for replacement in a decade or earlier.
by Gag Halfrunt on Fri Jun 26th, 2009 at 01:34:29 PM EST

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