Power Supply Sections

[Bambalam]

Here’s a power supply section containing +9V, +4.5V and GND that I breadboarded. Let’s see your preferred method for breadboarding power supplies.

 

[lowpitch]

Your -9V is +4.5V as well.

 

[JTEX]

Exactly. Where does your -V come from? There's nothing in this circuit that's more negative than the ground.

 

[jwin615]

Exactly. Where does your -V come from? There's nothing in this circuit that's more negative than the ground.

BRB back with the wife...

 

[Bambalam]

Your -9V is +4.5V as well.

Exactly. Where does your -V come from? There's nothing in this circuit that's more negative than the ground.

Well that was embarrassing. I completely goofed up on reading the schematic I was working on. I have updated the attachments.

 

[Bambalam]

Continuing on the breadboard and using a TL072 for an input and an output buffer, this layout puts the circuit input and output right next to each other (shown with the two header pins ).