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