Superconductive networks to optimize multiply tuned NMR coils

The invention is in the field of nuclear magnetic resonance (NMR) and particularly relates to NMR probes having superconducting components. A double tuned probe for employment in NMR apparatus includes a first resonant circuit of normal phase conductor coupled to the sample and also in communication with a second circuit containing a component in a superconductive phase. Communication between the two circuits supports two RF channels which may be exhibit relative sensitivities in proportion to their relative Q values.