Elecrafters,
If you have totally unknown toroids, this useful program should help:
Download , copy to your favourite folder and run (linux users run it
under wine).
miniRingkernRechner.exe (miniToroidCalculator)from here:
http://www.df7sx.de/?page_id=212
Read HELP
Set your language , then klick on TOOLS.
Measure ID OD and height of your toroid. Enter the data.
Wind some windings of wire onto the toroid ,measure the inductance and
enter the measured data.
Now klick Unknown Toroids and take over the measured data from TOOLS.
The program will not tell you the manufacturer or type, but it will tell
you what you can expect from the toroid.
With the knowledge of the calculated data you might now be able to
identify the toroid by searching through manufacturers lists.
There are other useful tools on this site, e.g. a dB-Calculator and a
Coax Stub Calculator.
Enjoy.
--
Ohne CW ist es nur CB..
73, Martin DM4iM
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