On May 11, 23:16, Zane H. Healy wrote: remember Foil is fine[1], because it's conductive, just like black conductive plastic bags and black conductive foam, only more so, of course. The drawback is that it tends to get punctured by the protruding leads and is easily torn. The point of any static dissipative system is to keep everything at the same potential. [1] except for anything that has a backup battery on board, or for a few CMOS real-time-clock chips (most are OK, though). -- Pete Peter Turnbull Dept. of Computer Science University of York