I did before I ran the series of tests. I downloaded the manual/schematic Wednesday when it arrived. I followed the process to 'tune' it and I have only two days experience with it. The ac/dc probe came today, from a B/K unit, just a random eBay find. I have just begun this whole process in a random way. I don't really now what tools to assemble, so it is just a scavenger hunt as I make small steps. I don't even know what to call the probe's connection to the chassis, a screw type sort of coax?

I love the whole nature of this ordeal and I am hell-bent. Just need to stay calm.