Federal unpolarized electrical adapter with ground lead and spade terminal, ca. 1960. An adapter to connect a 3-prong plug into a two-prong outlet. Molded on front ...
An unpolarized adapter for connecting a 3-prong cord to a 2-prong outlet. Plastic housing, brass fittings, plastic-insulated grounding lead to connect to plate screw on electrical outlet. Molded on ...
International adapters let travelers charge dual-voltage devices in any electrical outlet by converting the shape and size of the prong socket, and without being tied down to (potentially dangerous) ...