Hum when strings touched

Lap steels, resonators, multi-neck consoles and acoustic steel guitars

Moderator: Brad Bechtel

Post Reply
Ian
Posts: 294
Joined: 5 Apr 2000 12:01 am
Location: San Francisco, CA

Hum when strings touched

Post by Ian »

Hey Gang,

Just got my lap steel back from the shop (they installed a new pick up, I didn't care for it, they put the old one back in). It is absolutely quiet as it sits on my lap but as soon as I put either hand on the strings a get buzzing sound (the current pick up is a humbucker). This was not a problem prior to the swap. I'll take it back to the shop after Thanksgiving but just wondering what could be the cause.

Thank you for any input,

Ian
User avatar
Jack Hanson
Posts: 5024
Joined: 19 Jun 2012 3:42 pm
Location: San Luis Valley, USA

Post by Jack Hanson »

Perhaps they failed to run a ground wire to the bridge.
Terence Palmer
Posts: 9
Joined: 16 Mar 2011 10:25 am
Location: Maine, USA

Post by Terence Palmer »

The wires are probably reversed somewhere along the line, so the signal path is connected to ground.
User avatar
Erv Niehaus
Posts: 26797
Joined: 10 Aug 2001 12:01 am
Location: Litchfield, MN, USA

Post by Erv Niehaus »

Usually it's the other way, the guitar hums until you touch it. That's usually a ground problem.
Ian
Posts: 294
Joined: 5 Apr 2000 12:01 am
Location: San Francisco, CA

Post by Ian »

Thanks everybody,

I think it may be a defective cable after investigating. I've been using a George L some "several" years - perhaps it's time for a new one. Who's using what for cables/cords?

Thanks again,

Ian
Last edited by Ian on 24 Nov 2016 8:44 am, edited 1 time in total.
Jordan Beyer
Posts: 180
Joined: 20 Nov 2015 8:00 am
Location: Ohio, USA

Post by Jordan Beyer »

last I checked Evr Niehaus sells these cables called bullet cables. I had gotten a cable for my guitar and I love it
User avatar
David M Brown
Posts: 902
Joined: 15 Nov 2016 7:47 am
Location: California, USA
Contact:

Post by David M Brown »

Erv Niehaus wrote:Usually it's the other way, the guitar hums until you touch it. That's usually a ground problem.
Exactly!

Most of the older instruments have a little 60 cycle hum when you are not touching them.
Post Reply