RE: twin primary coils...

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

Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Gary.Lau-at-hp-dot-com>

I think you might have seen my 2-layer primary on my web site, 
http://www.laushaus-dot-com/tesla/primary.htm.  I have not had an opportunity 
to test and compare the running performance against a conventional 1-layer 
construction.  The 2-layer construction connects the two layers in series 
and enables one to construct a coil with a high inductance in a smaller 
space that would a 1-layer construction.  I did perform some AC resistance 
comparisons between the 2-layer coil and 1-layer coil, and surprisingly, 
the 2-layer coil had a somewhat higher AC resistance, despite having a 
lower DC resistance.  See 
http://www.laushaus-dot-com/tesla/primary_resistance.htm.  How significant that 
is in terms of performance remains to be seen.

Regards, Gary Lau
MA, USA


 >Original poster: "Justin Wright by way of Terry Fritz 
<twftesla-at-qwest-dot-net>" <justin-at-tracesofnut-dot-com>
 >
 >Hi All,
 >
 >I saw in my travels some pictures of a coil with two primary coils (one
 >above the other).
 >
 >Any comments on the effectiveness of this?
 >
 >Could the owner of the twin primary coil please let me know how they are
 >connected (serial, parallel etc) or send me the link.