Hi, 1) You can find the 'orderlist' I made (for CPC and farnell) on my blog here http://www.thinkingtwist.nl/downloads/ (and links are throughtout this topic). As per the Original partlist I have C1, C2 @ 1000V; C8, C13, C26 @ 100V and C15 @ 200V. The power unit has C1, C2, C6 and C8 @ 1000V. The rest is just 'standard' and choices based on brand, price and availabitlity. 2) The big caps for the PSU are chosen to fit the enclosure. So if you look at the schematics, figure out max height and subtract 1mm you probably more accurate. (http://www.farnell.c...ets/1520835.pdf) 3) Your build looks good at first glance * Only your call LED is a bit weird this way. Since the LED should be placed on a spacer and on an angle, I guess the hole in the panel for it is a bit to high (so the LED is not directly in or behind the hole) * It looks like your 'feet' for IC3 is placed backward (notch should be on the top). Be aware of this when you place the actual IC