Electronic conductive characteristics of composites made from 1,10-decanedithiol and gold nanoparticles were studied using a pressed pellet and with devices made from organic dithiols, gold nanoparticles, and approximately 1-mum gap gold electrodes. The I-V curve of the former pellet was ohmic and the temperature dependence (log(sigma) - 1/T) of the conductance was not linear. In contrast with it, the micro-gap device exhibited sigmoidal I-V curve. The activation energy for the latter was 6 x 10(-3) eV which was one order smaller than the former pellet of 4 x 10(-2) eV.