G'day, Opened it up today, just to have a peek. Looks like there are 3 adjustable trimpots in there: 2 round white ones in the top right corner 1 round white one a little left of the middle in the bottom part of the picture. Searched a few threads, but haven't found anything on their use. Any clue ? Also, the lit and web page don't mention mA draw. Does someone how many mA this thing eats ? Thx.