Mixing Positive Ground and Negative Ground

[pdavis68]

If I built 2 effects into the same box and one was negative ground and one was positive ground (say both are 9V) could I do a +9V/0/-9V supply and use the +9 for the negative ground effect and the -9 for the positive ground effect and have them share the ground?

[italianguy63]

Yes.

[antonis]

Of course you could..!!
(but you'll have to rename it as a vitrual ground circuit..)

The simplest way is to wire two 9V batteries in series (+ -+ -) and take the GND from the middle..


P.S. Wellcome..

edit: @Marc, the terser the faster..

[pdavis68]

Thanks. Thought so, just wanted to make sure I wasn't overlooking something. Thanks.