Product Design EFM-117J

  • Product Design EFM-117J

This radio is remembered as the 100th Sony product and one that incorporates Esaki diodes created by Nobel Prize winner Leo Esaki, under contract at the time. It features three bands (FM, MW, and SW), and the FM tuner was updated from a variable condenser to a rotary disk tuner. Design features that make this model stand out are its large dial scale and effective two-tone black and silver color scheme.