We apply the counterflow model to tile thermoelectric effects in aniso
tropic two-band superconductors like HTSC's and organic superconductor
s. It is shown that the Seebeck and Nernst coefficients are non-monoto
nic and can change their signs below the superconducting transition if
two bands unequally undergo the superconducting pairing. Recent exper
iments [1] on the organic compounds (BEDT-TTF)(2)X evidence in favour
of the proposed consideration.