  We present phase-resolved near-infrared photometry and spectroscopy of the
classical nova V1500 Cyg to explore whether cyclotron emission is present in
this system. While the spectroscopy do not indicate the presence of discrete
cyclotron harmonic emission, the light curves suggest that a sizable fraction
of its near-infrared fluxes are due to this component. The light curves of
V1500 Cyg appear to remain dominated by emission from the heated face of the
secondary star in this system. We have used infrared spectroscopy and
photometry to search for other potential magnetic systems amongst old classical
novae. We have found that the infrared light curves of V1974 Cyg superficially
resemble those of V1500 Cyg, suggesting a highly irradiated companion. The old
novae V446 Her and QV Vul have light curves with large amplitude variations
like those seen in polars, suggesting they might have magnetic primaries. We
extract photometry for seventy nine old novae from the 2MASS Point Source
Catalog and use those data to derive the mean, un-reddened infrared colors of
quiescent novae. We also extract WISE data for these objects and find that
forty five of them were detected. Surprisingly, a number of these systems were
detected in the WISE 22 mum band. While two of those objects produced
significant dust shells (V705 Cas and V445 Pup), the others did not. It appears
that line emission from their ionized ejected shells is the most likely
explanation for those detections.
