Biographical notes
 
   
Time line biographical
 
 
Documents
 
     
History telegraph
   
History telephone
     
History radio
   
History TV
    
History comp.
   
Scientists index
   
Bibliography
 
 

 
   

        


       
       

Edwin Howard Armstrong




    Radio FM (FREQUENCY MODULATION)
Circuits or regeneration receiver reaction
  
New York 18.December.1890   New York 01.February.1954
 
 
 
Inventor of radio receiver reaction,  and modulation frequency.  Entered into conflict with large companies that accused American radio to exploit its patent, and suicide throwing itself from 13 th floor of a building on East River