[Boatanchors] Measuring Swinging Choke values

[Mark K3MSB]

Hi John --

Could be;  but on all of them?   And,  if there were shorts,  I'd expect to
get some kind of reading.

Believe it or not,  I was thinking of doing what you suggest originally.   I
figured I'd use the IT-28 to get the low current inductance,  then use the
method you wrote about to get the inductance under rated current.

I then realized that I could do both with the IT-28 by upping the bridge
voltage.  So, as I'd up the voltage I expected to see the eye close with me
having to adjust it for a lower inductance.   It should work,  but it's not.

I'll go ahead and try your way tomorrow.  Plenty of filament trannys and
variacs around here....  It'll give me something to do and keep me off the
streets....

73 Mark K3MSB

On Wed, Jul 21, 2010 at 11:17 PM, J. Forster <jfor at quik.com> wrote:

> Shorted turns?
>
> Try a simple setup of a few volt AC supply (filament transfoirmer) and a
> couple of hundred ohm resisator in series. Measure the voltages around the
> loop and calculate a rough L for the choke.
>
> If you have the stuff, cobble up a simple AC bridge is another way to go.
>
> -John
>
> ============
>