Historical clue formulations

• Accessory for overseas travel — 2025-08-22
• Item that might be packed for a foreign trip — 2019-08-14
• Many a battery charger — 2018-12-28
• Need for a certain outlet — 2018-10-19
• International traveler's convenience — 2016-02-07
• Foreign traveler's purchase, maybe — 2014-02-23
• Electrical device for foreign travelers — 2009-05-25
• Electrical gizmo — 2004-04-11
• Converting device: Var. — 1998-12-08