Crystal sets were the first model of radio receiver marketed to domestic consumers, their greatest popularity coinciding with the introduction of commercial broadcasting in the 1920s.

The National Panasonic Sing-O-Ring R-72S radio, manufactured from 1969 to 1972, featuring a space age design. 

This 1927 model AWA Radiolette has a polished walnut redelec case with contrasting grained ivory fret and feet, four volume control/tuning dials, AWA badge, and straight line tuning dial encased in