Answer: teslacoil

AnswerCrossword Clue
TESLACOIL1891 self-named electrical invention
TESLACOILElectrical device named for its inventor
TESLACOILFlashy transformer
TESLACOILEarly radio transmitter
TESLACOILElectrical transformer
TESLACOILIt may cause sparks to fly
TESLACOILSparking device