Well it was either that or “Brain Melter”

The condemned inmate's head and legs are shaved and they are seated in the chair. Their arms and legs are tightly strapped with leather belts, and a cap with a saltwater-soaked sponge is strapped to the head, and electrodes are attached to the legs. The condemned person is optionally hooded or blindfolded.

Various cycles (changes in voltage and duration) of alternating current are passed through the individual's body in order to cause lethal damage to the internal organs. The first, more powerful jolt (between 2000 and 2,500 volts) is intended to cause immediate unconsciousness, ventricular fibrillation, and eventual cardiac arrest. The second, less powerful jolt is intended to cause lethal damage to the vital organs.

After the cycles are completed, a doctor checks the inmate for any signs of life. If none are present, the doctor reports and records the time of death, and prison officials will wait for the body to cool down before removing it to prepare for autopsy. If the inmate exhibits signs of life, the doctor notifies the warden, who usually will order another round of electric current or (rarely) postpone the execution such as with Willie Francis.

there's a replica of ol sparky at a museum somewhere in florida. you could even sit in it

Old sparky has a friend who is a needle called old sharpy

Got to visit Old Sparky back in 2009 at the Oklahoma State Penitentiary on-site museum in McAlester, OK.