http://www.mantaro.com/resources/impedance_calculator.htm You will find that it is a very small number of turns, have a look at a chip inductor from a place like coilcraft for some idea of size, they are available in 0603, 0805 etc. With an inductor of this value, the formulae become inaccurate, and measuring the value is also difficult, since the lead length will be a substantial part of the inductance. For that reason, a chip inductor is often a better bet, cheers, Richard
