WLW, Cincinnati, Ohio, was the first United States commercial 50 KW station and the only standard broadcast station to ever broadcast at a power of 500KW from 1934 to 1939! It was also the first to make use of a directional antenna system for skywave radiation control. (WSUN and WFLA, St. Petersburg, FL. shared the first directional antenna system.)
http://www.j-hawkins.com/wlw.shtml
WLW was one of the classic ‘clear channel’ AM Giants of the 20th Century, with 500kW of power through its famous mast. Paul Jellison managed to get a tour of the facility in 1997 and he shares it with us here in this nice quality video production. (via Don Stevens on Facebook)
http://www.youtube.com/watch?v=WaaRRGi-jRM
“Video and narration by Jim Hawkins – WA2WHV
Chief Engineer: Paul Jellison
There were four operational 50 KW transmitters at this site at the time.
The remains of the 500KW transmitter are shown.
The site has been cleaned up and updated since 1997.
More detailed information can be seen on my radio website at:
www.j-hawkins.com/radio click on WLW.
Other sites are also featured.
Info via dxld