#OTD #TDIH #June11, 1935 #EdwinArmstrong gives 1st public demonstration of #FMBroadcasting at #AlpineNewJersey.
#Inventors #Professors #ColumbiaUniversity #FM #FMRadio #RadioHistory #HistoryOfRadio #FMHistory #WKCR #WKCRFM #KingsCrownRadio #RadioSky
en.wikipedia.org/wiki/Edwin_H...