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[Good Sound Train Videos♪ Series] Enjoy the sound of the VVVF-controlled linear motor driving the 70 and 80 series of the Osaka Municipal Transportation Bureau's Linear Metro. We recommend listening with earphones, headphones, or high-quality speakers! What is a Linear Metro? It is also called a low-cost subway or mini subway, and its main feature is that it uses a linear motor as its electric motor. A normal train connects a motor, gears, and wheels, and rotates the wheels to propel the train with the adhesive force of the rails. However, a linear motor propels the train with the magnetic force of a reaction plate, which is like a magnetic plate installed on the ground between the rails, and a coil mounted on the bogie side of the train. It is also excellent at handling steep gradients and sharp curves, and the bogies and cars are small and low, so the stations and entire tunnels can be made compact, and it seems that the subway can be built at low cost. The new company "Osaka Metro" and Linear Metro are similar in name but have different meanings (^^;) ↓Tokyo Linear Metro Oedo Line VVVF • [Great sound♪] The sound of the linear motor driving the Toei Oedo Line 12-000 series [Hitachi GTO...