This came to me with an apparently dead pickup. Whipped it out, works fine. Lot of fiddling with the complicated switching, and its the switch that is dead. Also it hums loads. Problem here is there is no shielding in it, not even shielded wire, aside from the pickup wires. And with loads of slack in the wires, is pretty much ideal for humming if that is your aim.
Started on the correction. Too tight to shield it all, the cavities are very oversized so would use loads of tape, and I only have a bit left over. Replacing all the signal carrying wires with screened wire an shielding the switch section, because that has most exposed wiring will have to do. Should be quite far ahead of how it was. Just awaiting a new switch, Roberts were helpful enough with this.