1 Resultater fundet for "Fil:Navy_NAA_spark_transmitter_Arlington_1913.jpg".

Fil:Navy NAA spark transmitter Arlington 1913.jpg

is connected to the antenna and ground 454 647 356 578 2112 1384 Rotary spark gap 180 737 267 412 2112 1384 Belt driven 100 kW 500 Hz alternator 232 32...

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