  We point out that a cold dark matter condensate made of gauge bosons from an
extra hidden U(1) sector - dubbed hidden- photons - can create a small,
oscillating electric density current. Thus, they could also be searched for in
the recently proposed LC-circuit setup conceived for axion cold dark matter
search by Sikivie, Sullivan and Tanner. We estimate the sensitivity of this
setup for hidden-photon cold dark matter and we find it could cover a sizable,
so far unexplored parameter space.
