THE HISTORY OF RADIO documented in thousands of PDF books and magazines

• https://www.americanradiohistory.com/
• http://www.jimramsburg.com/june-in-the-golden-age.html
• https://www.radiodiscussions.com/forum.php
• http://www.americanradiohistory.com/Station_Books.htm
• http://www.hispanicformats.com/index.htm
• http://www.facebook.com/pages/americanradiohistorycom/207035032673171
• http://www.las-solanas.com/arsa/index.php
• https://3345.ca/rpm-magazine/
• http://www.americanradiohistory.com/Hugo_Gernsback.htm
• http://www.ontheshortwaves.com/
• http://www.broadcasting-history.ca
• http://www.radioworld.com/article/radio's-archives-preserved-online/216770
• http://www.davidgleason.com
• http://www.dfwradioarchives.info
• http://www.jjonz.us/RadioLogs/index.htm
• http://fadedsignals.com/
• http://eyesofageneration.com
• http://indianaradio.net/
• http://www.digitaldeliftp.com/
• http://www.otrr.org/
• http://home.recnet.com/
• https://www.fcc.gov/media/radio/audio-division
• http://www.grhof.com/
• http://www.thebdr.net/
• https://radio-locator.com/
• http://www.uhftelevision.com/
• http://theradiohistorian.org/index.htm
• https://www.fybush.com/
• http://broadcastersfoundation.org