Massive hum from old Jazz on one odd amp???

[Smith357]

I've got this old 04 Affinity Jazz, bone stock electronics. I looked under the pick guard, and its basic cheap, though with large Pots. It plays and sounds just fine through my other amps. When I pair it with the 20 year old Hog 30 it hums like crazy, it can be mitigated about 60% by flipping switches and twisting knobs, but it is very much there. All my other basses play through that amp just fine.

My question is why that specific bass with that specific amp?

I would like to donate this set up to church or a hungry young student, but it really should work first.

 

[kevrex]

i had a similar experience with a gretsch jr jet. perfectly quiet in some places, crazy hum in others. i shielded all the cavities, and that took care of it.

 

[96tbird]

Yup, try shielding it.

 

[Smith357]

i had a similar experience with a gretsch jr jet. perfectly quiet in some places, crazy hum in others. i shielded all the cavities, and that took care of it.

Yup, try shielding it.

Thanks a bunch, I will do that.

 

[Lobster11]

If the problem is lack of shielding, why does it only hum when playing through this one particular amp?