[RodB]

Hi Murf,
I took a look at the schematic and it doesn't show wire colors but there may be a clue in the list of colors you gave. They are the resistor color code and it may somehow match the list of tone switches in the schematic. This tone circuit is a feedback control that switches a network of capacitors in or out of the network. So that's the reason for the shielded wiring. I will check another source for more info.