[radio1]

On that second pic, might be able to re-wrap just the lower part of the winding (before taking it all off, worth a try - top 90% looks okay). Wrap a round of painter's tape just above the bad section to hold it, and solder in 34  awg after removing the bad wire, and wrap the new down into the feedback coil, check ohms, and if necessary, replace the 15 turns of the feedback - might get it back in order.