Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>
At 09:07 AM 3/14/2006, Tesla list wrote:
Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>
Hi Steve,
I would think the two "identical" secondaries would run very close 
the the same frequency but once the primary rang down (no more 
forcing function), they might drift apart in phase, sometimes "in 
phase" and sometimes "out of phase".  Since no two things are 
exactly identical, what would keep them phased correctly??
By putting the primaries in series, the currents are forced to be 
exactly phased the same. Yes, there will be slight differences 
between the secondaries, and the coupling isn't k=1, so there might 
be small differences in phase, but overall, they'll be pretty close.