Hello out there,
Would somebody please tell this poor ignoramus what
"plenum" or "a plenum" is? It's a term I've never heard in N.Z. and I
can't find it in the dictionary.
Thanks,
Malcolm
[ It's basically a cowling, or a box made of some sheet material (best
non-conductive for spark gaps) that directs the air flow. Another term
may be manifold -- Chip]