I have one question about the collector being powered on the transistor. Should I attach it through a diode to the positive power rail and then have my output going to a relay of some sort? I am slightly confused by how the circuit would turn off the equipment if the collector is always powered.
I am probably just missing something. I had figured when the op amp was "high" current would flow through the collector and to the output and therefore the equipment would have power. When the op amp goes "low" current through the collector is cut off, and therefore cuts off the output (equipment).
Thanks again, appreciate it.