Today marks the end of an era in retail, as the iconic electronics chain RadioShack filed for chapter 11 bankruptcy protection, weeks after a final warning from the NYSE that its stock would be delisted for falling below market capitalization requirements. While I was too young to really know RadioShack in its heyday, the company that got its start on mail-order ham radio gear in the 1920s, there probably aren't too many people in America who haven't at least walked into one.

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