Topband: measuring transformer core inductance

[Robert Kavanagh]

At 08:11 PM 11/14/03, you wrote:

>If you damage a core with DC, you can heat it to the Curie temperature
>to demagnetize it.
>
>Rick N6RK

You can also essentially demagnetize the core by cycling it around its 
hysteresis loop several times using gradually diminishing values of d.c. in 
a coil wound on the core.

Bob
VE3OSZ