Quote Originally Posted by WeirdBits View Post
Photos of each part of the loom would help, from output jack to each pot and switch etc. Clear and close-up, if possible. Often times it’s something that only other eyes can see.

Common on things to check:
Reversed output jack connections.
Bad ground lug connection on a volume pot.
Stray strand of wire from a ‘hot’ brushing a ground point.

Does it happen in all switch positions, are your getting sound from the pickups with a tap test, does either volume affect the hum? Sometimes disconnecting each pickup from the switch one at a time can help to narrow down where the issue is occurring.
Hi WeirdBits thanks for this.
I checked through your list:

Yes I get good sound from pickups tapping test.
Yes it happens on all switch positions

When both Neck and Bridge Vol pots are on 0 and Mast Vol is on 10, The noise has an added low Hum plus the buzz.
When all 3 Vol pots are on 10 the low Hum goes.

I checked ground lugs solder on Vol pots under jewellers glass, they looked strong but I added some solder on under side to be sure.
Output jack is correct. Ground to inner sleeve.

I also did a continuity test on the grounds with a multimeter - all seemed to pass.

I disconnected Pickups one at a time at switch with No difference.

So possible stray wire? on this third attempt I was very careful and the Pickup wires are divided and insulated.

Could the problem be in a pickup?
I will take picks and send tomorrow.
Cheers