I am trying to breadboard a DC circuit schematic (a sawtooth voltage controlled oscillator, to be precise). In the schematic there is a positive supply, a negative supply and ground (+4.5V, -4.5V and a ground, respectively).
I understand some things about the potential difference and the reference voltage. I tried to connect every pin which in the schematic is connected to the ground, with the negative supply. But I am sure that is not correct. I did a bit of research and now I know that the potential voltage difference between the positive and negative supply must be 9V and the ground is in the middle of this difference.
The problem is, I have a power supply device that has only Positive and Negative supply. So, what do you propose I do? I do not feel that it is correct to connect to the ground, every pin connected in the negative supply in the schematic. I am sorry if this exact question is asked again, but I am searching everywhere, even in stack exchange for over an hour now. Thank you in advance.