How can a duplex electrical outlet be connected with only one pair of white and black wires instead of two?
Backwiring: Electrical Receptacle (wall plugs) & Switch Back-wiring FAQs
What does it mean if an electrical outlet is 'backstabbed'? - Quora
What is Backstabbing a Receptacle or Switch and why is it important to hire an electrician that does not use this method of wiring?, Lancaster, PA
3 Whites, 1 Black? Back again with another outlet mystery - Community Forums
Back-Wire Pressure Plate Terminations for Easy Installation
Why do you not use these much better receptacles? : r/AskElectricians
What would cause an electrical outlet to only work intermittently? - Quora
backwire ground, straight in or wrap? : r/electrical
What's best way to replace my old 6 wire outlet with my new leviton one with only 4 screws
Duplex Receptacle Devices (Part 1): Notes on Inferior and Spec Grade Devices
Back Stab vs. Back Wire (Spec Grade) Receptacles and Switches