Thanks for the suggestion, David. I did think to do something like this. The problem is that the fracture is very close to the connector and there is not enough length available to make a decent job of applying heat-shrink insulation after the soldering. Obviously it has fractured there because that is the point of most flexing and metal fatigue has taken its toll. Another idea I may try is to "stilt" it with pieces of wood to keep the lead straight in the vicinity of the connector. It will look messy but it may be more reliable.

Thanks for the suggestion, David. I did think to do something like this. The problem is that the fracture is very close to the connector and there is not enough length available to make a decent job of applying heat-shrink insulation after the soldering. Obviously it has fractured there because that is the point of most flexing and metal fatigue has taken its toll. Another idea I may try is to "stilt" it with pieces of wood to keep the lead straight in the vicinity of the connector. It will look messy but it may be more reliable.