  A new dynamical symmetry breaking model of electroweak interactions is
proposed based on interacting fermions. Two fermions of different SU_{L}(2)
representations form a symmetry breaking condensate and generate the lepton and
quark masses. The weak gauge bosons get their usual standard model masses from
a gauge invariant Lagrangian of a doublet scalar field composed of the new
fermion fields. The new fermion fields become massive by condensation. It is
shown that the new charged fermions are produced at the next linear colliders
in large number. The model is a low energy one which cannot be renormalized
perturbatively. For the parameters of the model unitarity constraints are
presented.
