"Patrick Turner" = asinine, criminal ****wit
Phil Allison

And I maintain that just because some GOSS is wound into a spiral,
the U compared to an interleaved E&I tranny won't necessarily be
10 to 15 times what it is in the E&I lams.

** Two counter examples:

#1.

The I mag @ 240 volts for a 300 VA mains toroidal ( from Harbuch) on the
bench is 11mA rms.

At 120 volts, I mag falls to 1.7 mA, becomes sine wave and has a 12
degree
phase angle.

The load R is effectively 70 kohms.

For this case, L computes to be over 1000 H using: L = R / ( 2.pi.50.
tan 12d )

#2.

The I mag @ 240 volts for a 160 VA mains toroidal ( from Jaycar) on the
bench is 7 mA rms.

At 120 volts, the I mag falls to 1.6 mA, becomes near sine wave and has a
15
degree phase angle.

The load R is effectively 75 kohms.

L computes to be nearly 900 H.


You are quite right with all these calcs



** Now you do the same for E -core tannies of similar ratings - your own
or commercial ones.

Lets compares the I mag and effective L primary figures.

Lets see if the toroidals win by 10 to 15 times.





............... Phil