Single vs Twin TCs

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "S & J Young by way of Terry Fritz <twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>

Hi list,

A twin TC is alleged to be more efficient than a single TC.  That is, for
the same power, a twin allegedly can develop a longer streamer between the
toroids than a single coil can to the air or ground.  Can someone explain
exactly why?  Is it more than the idea that two smaller diameter primaries
might transfer energy more efficiently to the secondaries than one larger
primary to one secondary?  I suspect the explanation is more related to what
is going on in the air between the toroids.  Your thoughts?

--Steve