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1924. Washington, D.C. "Auto equipped with radio (made for Potomac Electric Power Co.)" Another look at the high-tech Model T seen here a few days ago. Can the 8-Track be far behind? Harris & Ewing glass negative. View full size.
The first car radios required A and B batteries in order to operate. In 1928 Bill Lear, later the developer of the afore mentioned 8 Track Tape and founder of the Lear Jet Company, came up, along with others, with a B Battery eliminator. He traded that invention to Paul Galvin for a 30% stake in Galvin's Company soon to be renamed Motorola. This proves the old adage, nothing happens until somebody sells something.
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