  A consistent description of charged many-tachyon Fermi system is developed.
Tachyons and antitachyons have the same chemical potential \mu+=\mu- because
the axial coupling constant g+=g- is invariant under the charge conjugation, in
contrast to reversion of the electric charge e+=-e-. The axial density
n5=<\psi^ \gamma 5 \psi> is incorporated in the thermodynamical functions
instead of <\psi^ \psi> which is not associated with any conserved quantity.
The number of tachyons and antitachyons are undefined but it is possible to
estimate their difference and establish a link between the total electric
charge density $en$ and $n5$.
