Answer: teslacoil

AnswerCrossword Clue
TESLACOIL

1891 self-named electrical invention

TESLACOIL

Electrical device named for its inventor

TESLACOIL

Flashy transformer

TESLACOIL
Early radio transmitter
TESLACOIL
Electrical transformer
TESLACOILIt may cause sparks to fly
TESLACOILSparking device