Original poster: "davep by way of Terry Fritz <teslalist@qwest.net>" <davep@quik.com> >> .... a 7KV Sodium hexafluoride relay Sulfur hexafluoride.... (Sodium is 'Na' ....) best dwp ...the net of a million lies... Vernor Vinge There are Many Web Sites which Say Many Things. -me ...for he has read everything, and written nothing... A J Raffles