Bordeaux Citadis trams use pantographs and electric overhead lines in outlying areas. American streetcars use either trolley poles or single-arm pantographs. The museum currently houses trams with trolley poles, bow collectors and pantographs. ALCO and Westinghouse supplied the electric locomotives, which were equipped with pantographs. The first automatic lathes were mechanically automated and controlled by cams or tracers and pantographs. The locomotives were fitted with twin diamond-shaped pantographs. Digitized pantographs are followed by computerized machines. E7201 which is high with pantographs down and with a carbody height of . The outer cars are unpowered, but mount the pantographs (giving a formation DPT1+MS1+MS2+MS3+MS4+DPT2.). All the pantographs were removed from the Skokie equipped cars. The tiny pantographs are made of etched stainless steel. Car 13 has two single-arm pantographs. The cars were also fitted with rod pantographs for street operation. The Mc car has two PS38 single-arm pantographs. Car 3 has two single-arm pantographs (one for emergency use).