I've manage to come by the above controller new very cheaply on ebay in the uk. The only thing is now I've got the thing I find out this partucular modle needs a 0-5v throttle input instead of the 0-5kOhm Pot input I thought it required (which i've already purchased). The electronic throttle from curtis is going to be more than i've paid for the controller so I am wanting to build a circuit that will take my 36-48v supply and my 0-5kohm pot input and feed the controller a 0-5v input. Can any one tell me what I need thanks. For now can I test the controller by using a 0-5v from a bench power supply and if so which pins do i connect the + and _ from my power supply to.