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Letter: Gianni Bettini vs. Donald Little
Remember the Italian army lieutenant who patented electrical recording in 1902
Published: January 8, 2021
In the Oct. 14 KDKA feature “Constructing the First ‘Real’ Radio Station,” the question is twice asked  including in a page 21 photo caption “Did engineer Donald Little invent and fabricate the world’s first transducer for turning record groove modulations into a varying voltage?”
The answer is: Decidedly not.
The honor for that advance goes to Gianni Bettini, an Italian army lieutenant who made his fortune in the USA but died and remains back in Italy, having patented electrical recording in 1902.
Bettini took a Berliner microphone, manufactured by Bell’s Western Electric Co. and of the type that went into all the world’s telephones for 100 years (which includes KDKA’s in 1920), pushed a needle through the center of its diaphragm and turned it into a phonograph pickup. ....

New York , United States , Emile Berliner , Gianni Bettini , Donald Little , Bell Western Electric Co , Radio World , Real Radio Station , Western Electric , Harry Bryant , Radio Recorders , புதியது யார்க் , ஒன்றுபட்டது மாநிலங்களில் , எமிலி பெர்லைனர் , ஜியானி பெட்டினி , டொனால்ட் கொஞ்சம் , மணி மேற்கு மின்சார இணை , வானொலி உலகம் , ரியல் வானொலி நிலையம் , மேற்கு மின்சார , ஹாரி பிரையண்ட் , வானொலி ரெக்கார்டர்கள் ,