How to reduce the voltage of a laptop power supply without reducing amperage? Answered
Hi guys, I have a laptop power supply with an output of 19V, 5.6A. I want to use it to power a small stereo amplifier that needs 12V. I want to make an adapter or something that will reduce the voltage without affecting amperage for use with the small amplifier, but I also need it supplying 19V for the laptop. Is it possible to make do it this way: [19V power brick] --> [adapter/transformer] --> [amplifier]?