We consider the cylindrical capacitor with the inner plate out of centre and we calculate the corresponding capacitance using the conformal transformation technique. We observe that the capacitance may be amplified and the quantity of material to construct the capacitor may be reduced with the eccentric geometry. This result can be used as a tutorial for an experimental lecture in order to measure the e ect of the eccentricity in the capacitance and also in the construction of the cylindrical capacitor.
