Reversing the polarity of a power supply

I'm trying to reverse the polarity of a circuit which normally is positive grounded. I want it to be negative grounded.

I think this should do it, but am unsure, can someone please tell me if this will work or not? Am I missing something?

 

You might want to use NPN transistors and just reverse the battery and the capacitors. 2N2222's should work just fine.

 

Besides using NPNs insead of the PNPs, like beenthere said, you should invert the electrolytic capacitors (10uF and 25uF) as well. That way, they will not explode when you turn your circuit on.

 

but, if i for some reason wanted to use PNP's, is this circuit right?

 

It won't work with PNPs.

 

Why not? According to this article, it should:
http://www.muzique.com/lab/fuzzface.htm

 

You have to use the transistors in common emitter configuration, like proposed in the circuit. That is why PNPs won't work.

In the article you've shown, he is using the battery in a manner that the current biasing the transistor will flow in the same way. He is using a negative ground now but the ground is connected to the collectors of the transistors, making the circuit essentially the same. Of course it is bad construction practice having a ground plane connected to the collectors of the transistors, since a ground plane is a large conductor and will bring some oscillation. He even mentions that, but a good construction practice is not what he mentions.