The Artificial Lightning Generator (人工雷発生装置?) is a superweapon that appeared in the Jinkōrai Hassei Sōchi1964 film, Mothra vs. Godzilla. They are regular electrical pylons with Tesla coils attached to them.
After the Sikorsky H-19 Helicopters dropped metal nets onto Godzilla, the generators shot him with bursts of electricity. They eventually failed when their wires overloaded and snapped.