urmm i was worried coz just now i just tried using a boss pedal with just an adaptor..which was the adaptor of my multifects, Behringer V-Amp....and the boss pedal didn't work...any reasons why?
did you see whats the spec of the vamp adaptor or is there any stated behind the adaptor?
boss pedal need dc 9v supply.
Check if you v amp using ac or dc adaptor. If its ac, you cant just plug in and use, its different. And even if its dc, is it at 9 v or above?
Use the wrong one, perhaps nothing will happen or pedal inside fried(if adaptor supply more than pedal needed and no protection circuit in the pedal...)
One spot can use with many pedals, from boss to moog. But must check the power spec of your pedal, need ac, dc
and boss adaptor, also can use with other pedals, but must be careful, check adaptor spec(its written on the red/shiny sticker, input and output), current spec is much much lower than one spot. If using with couple of pedals that draws large amount of current, the adaptor cannot tahan and will bye bye love..
anyway, heres the page with some useful info
http://www.stinkfoot.se/andreas/diy/power/list.htm