[BOB C.]

Here is a list of suggested hookup wire colors from the Radio Daze (http://www.radiodaze.com/) catalog:
BLACK - Grounds & Returns
BROWN - Filaments/Heaters off ground
Red - B+ power supply
ORANGE - Screen Grid
YELLOW - Cathode
GREEN - Control Grid
BLUE - Plate
VIOLET - Power supply, negative leads
GRAY - AC Power lines
WHITE - Bias supply, B minus, C minus AGC

This list may not match the factory wiring, but if you are rewiring the whole radio it's a good template. Good luck, Bob