1. Money

First Transistor Radio

The first transistor radio--the Regency TR-1.

First Transistor Radio - Regency

First Transistor Radio - Regency

Courtesy of Texas Instruments
In 1954, Texas Instruments was the first company to start commercial production of silicon transistors instead of using germanium. Silicon raised the power output while lowering operating temperatures, enabling the miniaturization of electronics. The first commercial transistor radio was also produced in 1954 - powered by TI silicon transistors.

©2013 About.com. All rights reserved.