Possible Clues:

• Terrific new energy charges electrical device
• One putting right European in terrific mess
• Electrical device runs: fierce with it, possibly
• Device such as a diode
• In Perth headmaster has no alternative: if that is resistance, one delivers correction
• Electrical device converting AC to DC
• One making correct electrical device
• electrical device
• Device for converting alternating current into direct current
• Device for changing AC to DC current