Hi All, In the ProPic circuit, Octavio does not list what the caps should be. I have been out of the circuit building field for about 8 years. I was in school. We never went over the types of caps, and where to use them. I am assuming the ones he has polarity marked are electolytics, are the rest electolytics as well. Also, when looking for the voltage regs, they listed several letter groups like T, ect. What is the difference in the lettering? Please E-Mail me directly so I do not tie up the list with these questions. TIA, Brian Denneau