determining transformer characteristics

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

Original poster: "Mark Broker by way of Terry Fritz <twftesla-at-qwest-dot-net>" <broker-at-uwplatt.edu>

List,

Although my uses for this information is not directly related to Tesla
Coils, the information IS directly useful to TCs.

Without the aid of a Henry meter, I would like to determine the inductance
for a tightly coupled transformer.  I've run across an excellent paper on
the Net that explained how to calculate the inductance of an NST.  This 
proceedure involved shorting the secondary while mearsuing the primary
current.  On a loosly coupled transformer, like an NST, this proceedure
works sufficiently well.  On a tightly coupled transformer (PT, pig, high-
power MOTs), this proceedure won't really work.  Is there a way (without a
Henry meter) to find the inductance of a tightly coupled transformer?

Also, can anyone hazard a guestimate as to the coupling coefficient of a
500VA, 2:1 toroidal transformer?

Thanks,

Mark Broker