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A comment on 40 uses for Germanium Diodes (1950) [pdf]. Parent comment

Re:40 uses for Germanium Diodes (1950) [pdf] by dasv on Monday June 01, 2020 @02:31PM (#23381975)
What? Does the fence itself vibrate and reproduce the sound? Or do you need to complete the circuit using the fence as the detector?
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Re:40 uses for Germanium Diodes (1950) [pdf] by PoachedSausage on Monday June 01, 2020 @05:58PM (#23384462)
I'm not entirely sure what process is converting to sound, but the metal fence makes a great antenna and we are talking about 10's of feet from the antenna with 500 kW AM at 200 kHz going into it.

It could actually have been arcing:

https://www.youtube.com/watch?v=uo9nGzIzSPw

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