[mikethedruid]

I just checked the schematic for the TH-9, TH-18, TH-22 (same schematic) and this radio cannot be any of those because they all have 2 band coverage, 540 - 1720 KC in all three, and 3 - 10 MC in the TH-9, 5.5 - 19 MC in the TH-18, and 7 - 24 MC in the TH-22. This mystery radio is only BCB.