  A brief overview is given over recent results on the spectral properties of
spherically symmetric MHD alpha2-dynamos. In particular, the spectra of
sphere-confined fluid or plasma configurations with physically realistic
boundary conditions (BCs) (surrounding vacuum) and with idealized BCs
(super-conducting surrounding) are discussed. The subjects comprise third-order
branch points of the spectrum, self-adjointness of the dynamo operator in a
Krein space as well as the resonant unfolding of diabolical points. It is
sketched how certain classes of dynamos with a strongly localized alpha-profile
embedded in a conducting surrounding can be mode decoupled by a diagonalization
of the dynamo operator matrix. A mapping of the dynamo eigenvalue problem to
that of a quantum mechanical Hamiltonian with energy dependent potential is
used to obtain qualitative information about the spectral behavior. Links to
supersymmetric Quantum Mechanics and to the Dirac equation are indicated.
