Well this is my first post here so i hope it is ok for me to ask a question like this. See im a knife maker and i have a 130v 2.5hp dc motor that i would like to run off ac like from my wall. now if i use a full wave rectifier i can get the dc voltage i want but the motor runs at top speed. so waht i was thinking was to use a TRIAC Dimmer switch on the ac side of the full wave rectifier so i can control the ac wave pulses to the full wave rectifier so that i would get a time delayed dc pulse to the motor so as to control the speed. will this work and do you think i would need a filter cap acros the dc side. I am making a hevy duty disk grinder and need to control the speed. if this would not work is there another way i could do it that would be cheep. thanks so much for your help with this project.