WLW was the pride of Powel Crosley's empire. Constructed to sell the radios his factory produced, WLW became the most powerful AM broadcast station ever licensed for use in the US. Over the years, WLW grew from 20 watts to 500,000 watts, eventually settling down to a "mere" 50,000 watts. Developed out of the experimental station 8XAA, WLW received License #312 from the Department of Commerce on March 2, 1922. An early adopter of the vertical antenna structure for transmission, WLW got its first one when it purchased WMH, whose antenna had a wine bottle for an insulator! In order to sell more and cheaper radios, Crosley understood he had to have more and more powerful transmitters. So, as quickly as the technology and the government would allow, WLW increased its transmitter power to 500, 1000, 5000, and in 1928, 50,000 watts, installing a Western Electric Model.