Re: 132.75 : I can add some additional information - NY Approach/Departure frequency mainly used for Stewart International (KSWF) Newburgh, NY, and surrounding smaller airports including Orange County, Wurtsboro, Dutchess Cty (Kingston/Poughkeepsie).
Transmitter could be at Kingston, but probably more likely either at Stewart or at Huguenot, NY, VOR site. (HUO)
On rare occasions I have heard departure traffic from NY Metro airports being handled by the controller on
this frequency in conjunction with 126.8.
I have not found any feeds presently for this frequency. Some months ago it was active on RadioReference.com
in the live audio section for NY State, but has since gone off line and removed from their listing.
It is not at Stewart. It is up around POU but not at POU.
If someone from that area (Poughkeepsie/LaGrange, NY) would like to help out please contact me. There are also some ZBW (Boston Center) frequencies we would like to add from that area.