![Why must this DIY lab bench power supply be powered by an AC supply? - Electrical Engineering Stack Exchange Why must this DIY lab bench power supply be powered by an AC supply? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/ABtbY.png)
Why must this DIY lab bench power supply be powered by an AC supply? - Electrical Engineering Stack Exchange
![DC Bench Power Supply Adjustable 30V /10A, 3-Digital Switching Regulated Lab Mini Power Supply Single-Output 110V, with Alligator Leads, for DIY Electronics Testing, Repairing& Researching: Amazon.com: Industrial & Scientific DC Bench Power Supply Adjustable 30V /10A, 3-Digital Switching Regulated Lab Mini Power Supply Single-Output 110V, with Alligator Leads, for DIY Electronics Testing, Repairing& Researching: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61vcq57Mz3L.jpg)
DC Bench Power Supply Adjustable 30V /10A, 3-Digital Switching Regulated Lab Mini Power Supply Single-Output 110V, with Alligator Leads, for DIY Electronics Testing, Repairing& Researching: Amazon.com: Industrial & Scientific
![How to Make a Bench Power Supply | Making a bench, Computer power supplies, Electronics projects diy How to Make a Bench Power Supply | Making a bench, Computer power supplies, Electronics projects diy](https://i.pinimg.com/originals/d8/bb/a7/d8bba79d215b7c8c663b25f089a26352.jpg)