If still in doubt ask here: http://www.rickenbacker.com/forum/ I'm quite sure that Rickenbacker CEO, John Hall, instantly knows exactly how they wired those guitars in the factory - there could be variations (all CEO's in the world - no matter what they manufacture could learn from him).
From time to time JH post here too btw.
20 minutes later...: After analyzing your post I've come to the conclusion that the toggle switch may have been messed with - for instance resoldered wrongly. Exactly that could make the changes of which pot that control which PU respectively - and also chance the way the toggle operates overall.
I went back to my magazine and will quote a bit more for you to see if it can help. It goes: "McGuinn also drew upon his experience with customized Ricks early in his career in specifying the customized electronics fitted to the 370/12 RM. The Byrd wiring starts with the stubby selector toggle switch, which chooses not each pickup separately but bridge and middle, all three, or neck and middle... Each pickup has a separate volume...etc...etc..." and a little later: "Ther tone control has six positions: 1-3 (without compressor) and 4-6 (with the internal compressor active)".
The article states that RM prefers position 5 as 6 is too bright. It also tells that McGuinn originally wanted only the bridge pickup but that was "too much" for Rickenbackers marketing department
) (and I certainly believe they were right - not Roger...)If you put this new quitation together with my first quotation you almost have the complete article... all though not in the original order.
Hope it helps you.
