Hearing Aids Through the Y(ear)s

By emilygarcesa

  • Hearing Aid invented

    Hearing Aid invented
    1st ELECTRONIC hearing aid invented by Mille Reese Hutchinson

  • Commerically Manufactured

    Commerically Manufactured
    1st commercially manufactured

  • Vacuum Tubes

    Vacuum Tubes
    Vacuum tubes produced turning speech into electric signals

  • Transistors

    Transistors
    Transistors replaced vacuum tubes making them smaller and less bulky

  • Microprocessor

    Microprocessor
    Microprocessor intro into the digital age of technology