Model of the first Edison phonograph "Tin Foil"

    Model of the first Edison phonograph "Tin Foil"


    Foil, brass, wood; casting, cutting

    36 х 29 х 17 cm, 9 kg


    The copy of the fist Edison phonograph “Tin Foil” is placed on a casted metal profiled black base. The model is made as a screw shaft with a rectangular thread and a handgrip with a wooden handle on the right side, which is set on the two supports. The shaft is equipped with a brass cylinder with a spring clamp, there are screw grooves on the surface and the ends of the metal foil strip that are fixed into the slot. Two boxes with membranes and needles are fixed for recording and reproducing sound opposite the cylinder, on both sides, on the brackets with a swallow-type slide with mounting screws. The recording is performed on the Tin Foil by the deep up-and-down method when the cylinder rotates clockwise and simultaneously moves along the shaft axis. The needle, pressed to the side of the drum, leaves a groove on the foil during the process of recording. The diaphragm, catching sound vibrations, transmits them to the needle, which records them on the foil. The groove profile changes according to the sound vibrations. The needle inserted into the groove causes the diaphragm vibrate in time with the groove profile and play back the recorded sound when the machine is switched on. The model was produced in commemoration a hundred years since the invention of the phonograph by Edison in December 1877 (patent US 200 521 of February 19, 1878). Music media: cylinder with metal foil.