I am currently in the process of building a voltage regulator. I am going to use an external source of power from a wall wart and then tune it down to 3 volts. I am going to be hooking up a laser pointer diode to it and any AC voltage can easily blow the diode. When the circuit is running the AC voltage reads 0.00 volts but when I hook up a motor or any other circuit the AC voltage spikes as the current draws. A few seconds later it is back down to 0.00 volts but by then the damage would be done. Am I under the impression that this circuit does not reduce AC voltage or is something wrong. Thanks.