Use a sinewave oscillator, a known value capacitor and a oscilloscope. Make a parallel tuned circuit by connecting the cap across the coil, and then sweep it from Hz to low MHz to find the resonance. The use the formula f=1/[2Π√(LC)] to solve for L.
they might have been color coded, and if so, you may Google for Inductor color code chart.
otherwise make a simple LC meter from **broken link removed**
though you need two numbers of 2% tol capacitors of 1000pF each, and one 100uH inductor, the project works fine, thanks to Phil Rice of Australia, and if are into RF filed, it is a good item in test gear.
You could build an RL oscillator using the 7555 timer, use a frequency counter or oscilloscope to determine the output frequency and calculate the inductor value.
You could build an RL oscillator using the 7555 timer, use a frequency counter or oscilloscope to determine the output frequency and calculate the inductor value.