The portable cassette workhouse for years in the taping community was the various versions of the Sony D5, but I don't think they provided phantom, even the pro model with XLR inputs. So you would need both a separate power supply (readily available, small, pretty inexpensive, and easy to find), and track down a Sony D5 - likely a very difficult task. I have no idea if anyone is currently manufacturing such a device, I find it highly unlikely though - manufacturers have moved to flash media or harddrive recording.
Why the aversion to digital? There are many handheld flash media recorders that will provide phantom power.