[klondike98]

My only thought on the loose wire is that it might be an antenna wire. I think the wafer switch assembly its connected to is the band selection switch and the addition of the taped on black wire at the end of the white wire suggests a longer antenna wire may have been attached. You might be able to trace back through the wafer switch connections to see how it connects into the circuit. The "D" wafer is associated with the antenna transformers if I'm reading things correctly. I always have difficulty tracing through wafer switches!