1912 radio operator sending morse code from a spark gap transmitter 4k
wide shot of a 1912 spark gap transmitter being used 4k
High voltage post. High-voltage tower sky.
High voltage electric pole during sunset 4K 4k
High voltage electric pole during sunset 4K 4k
High voltage post. High-voltage tower sky background. High-voltage electrical insulator electric line against the blue sky. Electricity transmission power lines. 4k.
High voltage post. High-voltage tower sky background. High-voltage electrical insulator electric line against the blue sky. Electricity transmission power lines. 4k.
High voltage post. High-voltage tower sky background. High-voltage electrical insulator electric line against the blue sky. Electricity transmission power lines. 4k.