tonepad Power Supply

[rasco22862]

Hi, im buildin this project, and decided to use a an external 12 vac wall wart  instead the 120v wiring .
So, where in this layout i have to connect the positive and the negative:

Thanks

[KMS]

Hook the 12VAC to the two blue color vias just above where it is printed "12VAC".

[KMS]

The green vias are all (-)DC out or ground and the red vias are all (+)DC out.

[rasco22862]

yes, but i´m using a 12vac wall wart transformer. It has a positive and a negative. Should i put two positive to the two blue holes, and a negative to a green hole?

[rasco22862]

Anybody?

[dxm1]

a 12V "AC" wall wart should not have a positive and negative terminal. It's AC.

[zyxwyvu]

yes, but i´m using a 12vac wall wart transformer. It has a positive and a negative. Should i put two positive to the two blue holes, and a negative to a green hole?

One wire should go to each blue hole. It's rectified right there so the polarity doesn't matter. All that comes out is positive DC.

[rasco22862]

sory , i was confused, its a 12v dc transformer, im using a 12v dc transformer, like this:

it has a positive and a negative

[dxm1]

In that case, the negative lead from the wall wart to the "GND" pad, the positive lead could go a couple places...
I'd put it at the cathodes of D3 and D4. If all that capacitance loads down the wall wart, you could connect it to
the cathode of D5...

[rasco22862]

In that case, the negative lead from the wall wart to the "GND" pad, the positive lead could go a couple places...
I'd put it at the cathodes of D3 and D4. If all that capacitance loads down the wall wart, you could connect it to
the cathode of D5...

you mean the beginning of the orange pad?

[KMS]

Yes you can hook 12VD +  it to the start of the Orange trace.

You should not need those 440uf caps....but it shouldn't  hurt anything to try it. I can see no reason why they would load down your wall wart, as you could easily have caps that big or bigger in stompboxs of many sorts.

You don't need D1, D2, D3, and D4.