2023-05-03, 19:27:37
Net control Ve3BQM Topic: Microphone
What is the original microphone?
The crude carbon rod microphone was invented by David Edward Hughes in 1878 and was instrumental in the development of telephony. These devices used the variable electrical resistance of carbon under pressure between metal plates to translate airborne sound waves into an electrical signal.
KO4DXQ Bob
VE3VCG Marvin
VA3MFO James
VA3EAC Janet
VA3TS Tom
VA3DNY Dan
VE3OZW Richard
VE3VCG Marvin
VA3MFO James
VA3TS Tom
VE3FJN Colin
VE3OZW Richard
VA3DNY Dan
What is the original microphone?
The crude carbon rod microphone was invented by David Edward Hughes in 1878 and was instrumental in the development of telephony. These devices used the variable electrical resistance of carbon under pressure between metal plates to translate airborne sound waves into an electrical signal.
KO4DXQ Bob
VE3VCG Marvin
VA3MFO James
VA3EAC Janet
VA3TS Tom
VA3DNY Dan
VE3OZW Richard
VE3VCG Marvin
VA3MFO James
VA3TS Tom
VE3FJN Colin
VE3OZW Richard
VA3DNY Dan
73
Bernie
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