In some recent papers a loss-gain electronic circuit has been introduced and
analyzed within the context of PT-quantum mechanics. In this paper we show that
this circuit can be analyzed using the formalism of the so-called
pseudo-fermions. In particular we discuss the time behavior of the circuit, and
we construct two biorthogonal bases associated to the Liouville matrix \Lc
used in the treatment of the dynamics. We relate these bases to \Lc and
\Lc^\dagger, and we also show that a self-adjoint Liouville-like operator
could be introduced in the game. Finally, we describe the time evolution of the
circuit in an {\em Heisenberg-like} representation, driven by a non
self-adjoint hamiltonian.Comment: International Journal of Theoretical Physics, in pres
