Thalys PBA set seen on Thalys 9457 (Paris-Nord ---> Liège-Guillemins), at the North end of LGV1 (Halle-French border), shortly before running through the voltage change-over (25kV 50Hz AC ---> 3kV DC).
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Lembeek.
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14th May 2006. 
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P.L.Guillemin (plguillemin@yahoo.fr)