#### codan

##### New Member

Could someone help me get a better understanding of the basics.

I have attached a circuit & is where i get confused.

It shows four ground symbols a signal input & output & a 15v source, then it has -15v & is what i don't understand when there are ground symbols as well.

I have drawn a 15v source & added the positive & negative signs to it.

Is this correct, so the -15v is just the ground side of the 15v supply?.

If this is correct, are then the four ground symbols just a circuit ground-- 0 trace & there interconnected together & not the 15v supply ground?

Basic, but i get confused with this being a learner?

I have attached a circuit & is where i get confused.

It shows four ground symbols a signal input & output & a 15v source, then it has -15v & is what i don't understand when there are ground symbols as well.

I have drawn a 15v source & added the positive & negative signs to it.

Is this correct, so the -15v is just the ground side of the 15v supply?.

If this is correct, are then the four ground symbols just a circuit ground-- 0 trace & there interconnected together & not the 15v supply ground?

Basic, but i get confused with this being a learner?