Emmetteur

Författare/Upphovsman:

OkändUnknown

Kreditera:

vykort

Kort länk:

https://sewiki.info/b/51ea

Källa:

Wikimedia Commons

Upplösning:

450 x 302 Pixel (60840 Bytes)

Beskrivning:

Early Poulsen arc radio transmitter at a US Navy station at Croix d'Hins, Bordeaux, France. The two 1 megawatt transmitters shown here, built by the Federal Telegraph Co. in 1919, which could broadcast continuously at a power of 500 kW and for a short time at a power of 1 MW, were one of the largest arc transmitters ever built.

Licens:

Public domain