I'm gonna get some

[Olivier Malhomme <malhomme@infobiogen.fr>]

In my long (it appears so) quest for unexpensive ways to get a jamman, a 
vortex or an echoplex, I suddelly wonder...
In france the current is 220 V at 50 hz.
Does these units have wall warts (in that case, i just swap the wall 
wart, it is easy) or do they have internal current transformation (in 
that case, I would have to open the machine, and that is less easy for 
me, not to mention that I fear having to do such things...)
Pleaaaaassse tell me

Olivier