Vari Phase VIP System Explanation 

Sitting down in the playing position

Lower left = Master Volume
Lower Right = Master Tone
Upper Left = VIP ( Var i phase ) for Rhythm Neck pickup.
Upper Right = VIP (Var i phase ) for Lead Bridge pickup

Two Mini Switches
1 Down = VIP
2 Middle = FULL HUM BUCKING (Bypasses VIP System)
3 Up= COIL TAP

When in the Phase Roller Position 10 = IN PHASE
0= Out of PHASE  (on Roller knob)