Anyone help. Power supply question.
 

I'm setting up my ham station. I just passed my general and I would to be
able to operate when I find out what my call is. Do I hook up the red wire
from my rig to the plus terminal on the power supply?

My friend, who is a new Extra, says the red wire goes to the minus terminal,
but that can't be right because it's opposite of how I hooked my CB. What
wire goes where? Thanks


John