All this talk about TBX radios is making me think about running one for the 3885 AM Net at Hamvention. I have the radio and the plug for the receiver and can throw together a power supply without much issue but need the four-pin power plug for the transmitter. Think it's a PL61 or something like that? Anyone got one? Or at least know the appropriate number for it? Somehow think I have seen that plug used on some other radios too.