  The anomalies of electromagnetic properties of carbon condensates are
discussed. Basic attention has been done to electromagnetic properties of thin
carbon films produced by means of sputtering of spectral pure graphite in
electrical arc (CA films). The room temperature rf-to-dc conversion associated
with the ac Josephson effect, the jumps of conductivity stipulated by variation
of current and temperature and zero spin density can be pointed among the
anomalous properties of CA films. The number of basic hypotheses are presented
in trying to explain this anomalies. As the main hypothesis the high
temperature superconductivity is considered. As alternative the analogy with
the chalcogenide glasses, fluctuation conductivity, etc. can be considered.
