Show train telephones telephone telephoning from a moving train Is made possible by use of the lines of the telegraph wires that parallel all railroad tracks the conversation Is broadcast to them runs along the wires to a control central station and Is then transferred to ordinary telephone wires the instrument ment looks not unlike a radio broadcaster an ordinary telephone Is used and the voice transmitted by the broadcaster to the telegraph wire the process involves the disintegration and reassembling of the human voice for the words spoken into the telephone on the train vanish into high frequency cycles and are precia stated from the train to the carrier current telegraph at the pickup stations the voice Is reassembled and so transmitted farther |