On Sun, 18 Sep 2005 17:47:09 GMT, "William E. Sabin"
wrote:

If the transformer has a step-up turns ratio (from primary to secondary)
then the resistance, inductive reactance and capacitive reactance connected
to the secondary (as measured at the primary) decrease as the square of the
turns ratio. Therefore effective capacitance measured at the primary
increases as the square of the turns ratio. For a step-down transformer the
effects are the opposite.


OK Bill,

I have a series tuned loop that is resonant with 1000 pf and fed into
a 10 to one step up transformer.

If I remove the 1000 pF cap completely, I can resonate the loop at the
same frequency with 10 pF in the secondary?

It almost sounds too good to be true::

Regards,

T