What Mod Is This? Dave Meniketti's 74 Super Lead

[matttornado]

I'm wondering what mod this is? I drew an arrow pointing to it.
I see there is a Cross Line master volume connected to volume II. That's pretty obvious.

Is that purple jumper wire some sort of one wire mod? I can't quite see where the purple wire is soldered.

Anyone know or have any ideas as to what it might be?

Thanks!

 

[StingRay85]

Strange. A wild guess but it seems as if the pink wires running from the PI coupling caps to the volume II is a PPIMV

Surely it's a modded amp

 

[JP2036]

Thats the 3 wire mod.

 

[Trouble]

That may be a repair not a mod, can't see where it goes

 

[thetragichero]

time to get out your meter set to continuity and figure out where it goes

 

[matttornado]

That may be a repair not a mod, can't see where it goes

yeah it’s hard to tell.

 

[matttornado]

looks like it’s shorting the 470k mixer resistor to ground?

 

[johan.b]

As matttornado suggest, i think it's simply shorting the unused normal channel mixer side to ground. They could just have grounded the other end of the brown wire, but without a better pic?....