It is currently Tue Mar 17, 2020 12:05 am

All times are UTC - 7 hours



Post new topic Reply to topic  [ 3 posts ] 
Author Message
Post subject: Grounding problem at home with strat and 65 reverb
Posted: Sun Aug 02, 2009 10:43 pm
Offline
Hobbyist
Hobbyist

Joined: Sun Aug 02, 2009 10:25 pm
Posts: 1
I just purchased a new 65 deluxe reverb amp and I'm having problems with hissing noises. I plugged my guitar into it at guitar center and turned the volume all the way up and it was quiet with no hissing. I get home plug it in and with the volume goes over 4 the hissing starts. If i touch the input jack or the metal on the guitar cord the noise goes away, which leads to believe there's a grounding issue. Could it be my home 's electrical. It's not the guitar I had it checked out.


Top
Profile
Fender Play Winter Sale 2020
Post subject:
Posted: Sun Aug 02, 2009 11:29 pm
Offline
Aspiring Musician
Aspiring Musician
User avatar

Joined: Thu Mar 19, 2009 11:05 pm
Posts: 733
Location: Saskatoon, Saskatchewan
Paradoxically, this happens to many of us. What we think we hear in a music store is often not even close to what we hear at home. Even if a guitar store appears to be quiet, it is likely much, much louder than your bedroom.

Keeping this in mind, there are a few things you can consider. First is electrical interference. Tube amps are generally affected most by fluorescent light bulbs and computer monitors, although there could be any number of culprits. You can rule these things out by playing in different rooms and comparing the result.

The same can be said for bad electrical mains in your house. Chances are good that if you park your amp next to one, interference will be the result. Again: move it around and listen.

Once you've done this with no tangible result, you're left with the issues of shielding and grounding. Please, keep in mind that my electrical knowledge is vastly inferior to that of many other forum members (help!!). Nevertheless, I shall try.

If you are touching a part of the guitar and the hum stops, it is probably a bad ground in the guitar itself. You are providing the ground by touching the strings which, in turn, removes the hum. I think.

Also: single-coils are notoriously finicky and it could be inferior shielding within the body cavities.


Top
Profile
Post subject:
Posted: Sun Aug 09, 2009 3:22 am
Offline
Professional Musician
Professional Musician
User avatar

Joined: Sun Nov 09, 2008 4:39 am
Posts: 1516
As Vulkan mentioned, single coils often have this problem.

I got a AV RI '62 Jaguar the first of this year and also bought a new Hot Rod Deville 412 at the same time......no I have had no problems with the HRDeville.

I thought the buzzing was from the amp, so put a ground lifter on it, turned off all the wirless everything in the room it was being used in and still the buzzing was there.

After a few weeks, I got out one of my other guitars - a Les Paul - and the problem wasn't there.

Took the guitar to my dealer and to cut to the end of the solution, the cavity around the output jack was not shielded at all. My dealer put in shielding tape and the problem went away, though there is still a slight sound from the single coils.

Makes me wonder why I paid so much for a US Jag and the cavity in question wasn't shielded...maybe that's how they did it in 1962?

I will admit that the sound from the combo of Jag on the bridge pickup and Deville make me get shivvers!

_________________
Two roads diverged in a wood, and I,
I took the one less traveled by,
And that has made all the difference.

- Robert Frost -


Top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 7 hours

Fender Play Winter Sale 2020

Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to: