Emg 81 hum

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Olderama
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Emg 81 hum

Post by Olderama »

Hi all

Trying my amp today and I had a blast on my emg Ltd and the 81 in the bridge crackles/buzzes when I touch the pickup or the post screws not the surround screws and quiet when don’t touch it
The 85 doesn’t in the neck
Any suggestions?
:mental:

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mr_sooty
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Re: Emg 81 hum

Post by mr_sooty »

Hot and ground wired the wrong way around possibly. Sounds like your grounded parts are live.

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Re: Emg 81 hum

Post by Olderama »

mr_sooty wrote: Sun Jan 10, 2021 4:06 pm Hot and ground wired the wrong way around possibly. Sounds like your grounded parts are live.
Cool
If they are i take it they would still work as this is the first time I've noticed it on a ungated amp and it played ok
:mental:

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Re: Emg 81 hum

Post by Olderama »

I'll swap the 85 over at some point and see if that does the same to eliminate any pickup issue
Then I'll probably give it to someone to fix lol
:mental:

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Re: Emg 81 hum

Post by mr_sooty »

Yeah it still works if it's the wrong way around. I have a phase switch on my Chibson that does exactly this on purpose, because the pickups in it are vintage style so there's only 2 conductors, meaning the only way to flip phase is to have the pickup covers and screws hot, which means they buzz if you touch them but sound fine as long as you don't.

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Re: Emg 81 hum

Post by willow13 »

I would say the 81 has a bad solder joint given EMGs don't need grounding (they have internal grounding so should not be connected to the bridge metal) .. check the pots black wires
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