Penance, ref the triode designs DIY filter.. What size chokes did you use, and how does the value stack up against the total current you are drawing? Did you use class X/Y caps throughout? What VDRs did you use? How did you manage to get all the bits you need and build & trial the thing between 8pm on Wednesday (when triode design first mentioned in the other thread) & 9.30 pm on Thursday (when you started this thread)!!. (Please don't take this the wrong way - I am intrigued, 'cos it took me nearly three weeks to source the bits, 'cos Maplins don't hold the caps in stock in their shops..)