sponges are variable in water-retention. you want high water
retention so it will conduct well. plastic sponges are less
retentive than natural or cellulose sponges. The cellulose "o-cello"
type sponge will be very conductive, almost too much so, it really
carries the current right along. You could even use 3 volts with
those and it would work fine.

the use of cloth pads like terry cloth or any other absorbent cloth
is fine, too. it needs to be flexible, thick and hold moisture so
that electricity will spread out through it. almost any absorbent
material will do the job.

bG

--- In microelectricitygermkiller2@yahoogroups.com, "Mike"
<leachim@...> wrote:
>
> Could someone clarify the TYPE of sponge to use - I saw mention of
it a
> while ago....
>
> Mike
>