I wouldn't do that. you can buy a simple power supply. like : http://www3.towerhobbies.com/cgi-bin...&I=LXRJN7&P=ML

or you can buy a computer power supply (the atx ones which has an on-off switch) and use it. This way it is cheaper. A 150-200 watt power supply is enough for your triton jr. That's what I'm doing for years.