  The equivalence between the $\mathrm{Schr\ddot{o}dinger}$ dynamics of a
quantum system with a finite number of basis states and a classical dynamics is
realized in terms of electric networks. The isomorphism that connects in a
univocal way both dynamical systems was applied to the case of neutral mesons,
kaons in particular, and the class of electric networks univocally related to
the quantum system was analyzed. Moreover, under $CPT$ invariance, the relevant
$\epsilon$ parameter that measures $CP$ violation in the kaon system is
reinterpreted in terms of network parameters. All these results were explicitly
shown by means of both a numerical simulation of the implied networks and by
constructing the corresponding circuits.
