Relay to control 2 outputs

[Ether]

Originally Posted by Micah Chetrit

Excuse my ignorance, but why is a transistor good for this? from my knowledge a transistor is used for controlling outputs based on signals.

There's a lot to learn, but if you're interested in this stuff you are fortunate that you live in a time when so much information is right at your fingertips, literally.

Just Google the phrase "voltage regulator" and start reading. You will be amazed at what you find.