There's a lot of 60 Hz hum in my acoustic/electric dulcitar. The amp runs on a battery, so there's no wall-wart leakage, at least not directly.
Besides wearing a wrist-mount grounding strap that connects across the brass bolt that contacts the strings and running a pigtail lead to the negative (outside) of the 1/4" jack, what are my options?
I am building an acoustic/electric chugger with a mini-humbucker, and wonder if I should just ground the strings to the black (negative) lead and prepare to wear a wrist strap while playing?
I am using what is supposedly 97% shield braided cable between the CBG and my battery powered amp. And yes, I have read the "Pin One Problem" essays online.
Thanks
Gordon
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If your using a mini-humbucker, there shouldn't be any 60 cycle hum. That is inherent to single coil pickups.
All guitars with pickups should have a ground wire to the strings either at the bridge or the stop tail piece.
If you have another git or can borrow one, plug it into your amp to see if the noise is still there, change cords etc.
Fluorescent lights or electrical wiring and dimmer switches in a room can be a problem with RF noises being picked up through the amp. Try a different room or outside to see if the problem still exists.
No FL lights in the house or dimmers anywhere. There's a hum without plugging in anything. Minor but annoying. Shall have second box (with mini humbucker) to try with cord shortly.
If you have the hum without anything plugged in(not even a cord), then it's probably the amp or at least part of the problem.
Dimmers might explain a similar problem that I have. If the dimmer switch is off so there's no power to the lights, will I still get a hum?
Not really sure about that. You would think not, but whether it can still influence or not isn't known to me.
Not a clue what was causing it. but I switched off all the sockets (outlets) in the room and silence prevailed. Lights were off, but there was still power to the dimmer switch.
Well now we know. Glad you got it sorted out Denis.
Get both just to be sure, change colors to reflect your mood. Pun intended.
Get one that covers you, your git while playing it and your amp.
Maybe one big enough to cover your house.
Dear Wayfinder et al:
90% of the hum disappeared when I went to a cloth covered cable from Monoprice that is 20 ga. wire with a 96% braided copper shield. Monoprice is my "go to" for exotic or standard cables. Their prices are very low compared to big box stores, specialty shops, etc. and CNET uses Monoprice as their exclusive provider for their in-house electronics. I have no financial interest in them, but am a very happy customer. Wish I'd thought of this earlier!
Shielded Cable is what you have and the shielding is what cuts out that hum. Shielded wiring for the inside of the guitar is expensive and you can use RCA cables that are used on DVD/VCR/stereos for that.
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