The message
from Martin contains these words:

/snip/

Zinc would be favourite, as it's widely available and easily worked, and
with copper, gives a potential difference of 1·5 v.

a zinc slug?

and a current of ...?

Don't be silly - current is a function of voltage and resistance - or
impedance.

My wife asks: Have you thought of wiring LEDs to all your slugs to
light up your
garden at night.

No, should I?

--
Rusty
Growing old is mandatory; growing up is optional.
Direct reply to: horrid dot squeak snailything zetnet point co period uk