If anyone is tempted to try this without purchasing a suitable kit, make sure the parts are suitably rated. The 250V non-polarised C2 may be safety critical if

If anyone is tempted to try this without purchasing a suitable kit, make sure the parts are suitably rated. The 250V non-polarised C2 may be safety critical if it's a line to line or line to neutral capacitor - look for an "X" or "Y" marking (I can't tell from the damage evident in John's photos). Lots of information on line-rated caps at http://my.execpc.com/~endlr/line-filter.html http://my.execpc.com/~endlr/line-filter.html.