[Elecraft] Measuring Inductance with the MFJ-259

Darrell Bellerive va7to at rac.ca
Sun Aug 28 19:31:59 EDT 2005


As I build my second K2, I want to try to measure the inductance of the 
toroids with my MFJ-259. The MFJ manual has instructions on how to do this. 
Essentially one builds a series LC circuit and measures the resonant 
frequency and then calculates the inductance.

Has anyone tried this and have any tips or tricks to pass on?

Am I correct in assuming I can adjust the value of inductance on a toroid 
slightly by compressing or expanding the spacing between turns? If so what 
can I use to hold the turns in place. Friction is probably good enough, but I 
wonder about a few drops of something like Q-Dope. Comments?

73,
Darrell
-- 
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada


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