Line balances and terminal impedances

A method is given of determining an impedance which shall balance a line over a wide range of frequencies (rendered necessary by the use of lines for the transmission of music). No difficulty is found in balancing the line almost exactly. In cases where line balancing is not essential, the possibility of counteracting the distortion caused by differential frequency attenuation, by deliberately making the line reflective, is considered. It is shown that the complete accomplishment of this is not a practical possibility, but that the transmissible range of the line can be extended by about one octave for the same limit of distortion.