Power supply, positive or negative connection

Parts Questions
1

I’m looking for a power supply for my midibox

i’ve found a 6v-500mA power supply. But there are 2 versions a 6V/500MA NEGATIV and a 6V/500MA POSITIV.

Does it matter what version i get, or can i just switch the connections to the core?

Greetings,

Ramonster

2

Hi,…

I would take the positive one, but…  what kind of midibox do you built,… do you really need only 6V?

greets,

pwx

3

I’m building a midibox with:

32 buttons (with leds in them)

28 pots

4 faders

lcd display

i’ve looked it up again, and i need a 7-10v 500mA power supply.

Greets,

Ramon

4

I’ve got a power-supply here that’s 9v 1000mA (9VA)

would this do for my box?

Ramon

5

;D Yes!!

This should work…

pwx

6

Great!!!

Thanks for the reply.

Greets,

Ramonster