Nope, look at the diagram. He's talking about the connection to the speakers physically being broken when the headphone plug is inserted into the jack. Here's a

Nope, look at the diagram. He's talking about the connection to the speakers physically being broken when the headphone plug is inserted into the jack. Here's a drawing that demonstrates how the circuit changes when the plug is inserted: https://www.electronicspecifier.com/cms/images/inline-2018-05/figure5mayblogcui.jpg https://www.electronicspecifier.com/cms/images/inline-2018-0...