Eric,
I went back to double-check the wire size.? I pretty much shot from the hip on calling the gauge.? On checking the uBITX that I have, 28 or 30 gauge would be fine.? The 100 watt LPF that I have built uses 24 gauge wire.? 22 gauge would work, however, it might be hard to fit on the cores.
73
Evan
AC9TU