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View Full Version : Vorson buzzing like a flange is on



Cornfield
05-23-2016, 12:07 PM
I get an awful humming, as if the flanger is on, when I hold the Vorson uke up to play it. If I lay it flat, lik a lap steel, the noise isn't there. Anyone have experience with this?

kissing
05-23-2016, 04:57 PM
Surprisingly enough, my Vorson was one the most hum free electric instruments I ever owned.

My Gibson Les Paul with dual humbuckers generates a hum, while the Vorson didn't.

Sounds like there may be a shielding/grounding issue in your particular one.

There is also the chance its not the instrument's fault, such as interference (like from a computer), dirty power source or the amp/cable itself.

Is there a way you can isolate the cause to the instrument? (Eg: try different cables, different instruments plugged into same amp, different amp, different venue)

LDS714
05-24-2016, 12:44 AM
That sort of sound can occur if the nut slot is cut incorrectly. Is it just one string doing it or all of them?

Cornfield
05-24-2016, 02:21 AM
all of them.

kissing
05-24-2016, 05:45 AM
That sort of sound can occur if the nut slot is cut incorrectly. Is it just one string doing it or all of them?

How do incorrectly cut nut-slots cause electrical hum?

spookelele
05-24-2016, 08:24 AM
I've read the hum is very common on $100ish vorson's.

People seem to think it's a shielding issue.
Some people have tried to shield the pickups with some kinda foil tape.
When I asked on the results.. they never got back to me.

Cornfield
05-24-2016, 08:43 AM
I've read the hum is very common on $100ish vorson's.

People seem to think it's a shielding issue.
Some people have tried to shield the pickups with some kinda foil tape.
When I asked on the results.. they never got back to me.
I'm about to pick up some shielding tape myself. Not quite sure how to apply and ground it though. If it doesn't work out. I'll buy a Risa LP

Futurethink
05-24-2016, 09:43 AM
Since the noise varies with the orientation of your ‘uke, you might be dealing with EMI from the electrical devices that surround you. This (long) video suggests a noise gate might be helpful. Does the “noise-when-laying-flat-problem” occur in other rooms in your house?

https://www.youtube.com/watch?v=Nakpj_Mee0Q

There are many videos about how to add shielding on the Web. Here are a few, preceded by a Web page link;

http://www.seymourduncan.com/blog/setups/how-to-shield-a-guitar

https://www.youtube.com/watch?v=qB9jwmWYxjM

https://www.youtube.com/watch?v=huc616KgVd0

https://www.youtube.com/watch?v=-YZdUGWszKU

If you don’t want to tackle this yourself, a music store that sells electric guitars ought to be able to do this for you.

I don’t understand why anyone would think this is a problem only experienced with a Vorson. The Web has hundreds of posts about this hum issue for very, very many brands of solid-body instruments. This seems to be a common topic for do-it-yourself remedies.

Cornfield
05-24-2016, 11:47 AM
Since the noise varies with the orientation of your ‘uke, you might be dealing with EMI from the electrical devices that surround you. This (long) video suggests a noise gate might be helpful. Does the “noise-when-laying-flat-problem” occur in other rooms in your house?

https://www.youtube.com/watch?v=Nakpj_Mee0Q

There are many videos about how to add shielding on the Web. Here are a few, preceded by a Web page link;

http://www.seymourduncan.com/blog/setups/how-to-shield-a-guitar

https://www.youtube.com/watch?v=qB9jwmWYxjM

https://www.youtube.com/watch?v=huc616KgVd0

https://www.youtube.com/watch?v=-YZdUGWszKU

If you don’t want to tackle this yourself, a music store that sells electric guitars ought to be able to do this for you.

I don’t understand why anyone would think this is a problem only experienced with a Vorson. The Web has hundreds of posts about this hum issue for very, very many brands of solid-body instruments. This seems to be a common topic for do-it-yourself remedies.

Thanks, I got some Aluminum tape from Home Depot today and will try the shielding experiment tomorrow. Thanks for the inks. I had a Risa LP before, with humbuckers. I ever realized what humbuckers were before. Now I know.

kissing
05-24-2016, 04:32 PM
Ironically, my lucky Vorson hummed less than my Gibson with humbuckers.

I am guessing that although it had humbuckers, they were more sensitive pickups with 6 poles instead of 4.

Inksplosive AL
05-24-2016, 05:24 PM
Holy double post! lol

http://forum.ukuleleunderground.com/showthread.php?120697-Vorson-droning-like-the-flanger-is-on

http://mynoise.net/NoiseMachines/60HzHumNoiseGenerator.php

Cornfield
05-25-2016, 03:23 AM
I woke up at 5 AM today, grabbed a cup of coffee and went at it.
When I was done, there was no hum. There was also no sound. I apparently did something wrong. The Vorson is now officially filed under "landfill". I looked back at my records and saw that I bought it used so I didn't really spend much on it.
This is a first world problem, to be moved on from. I may go ahead and purchase a Risa LP, get a real Les Paul guitar or just plug my Kamaka tenor into the effects pedal and amp. Like I said, first world problem.

Futurethink
05-25-2016, 03:48 AM
How disappointing. I was hoping to read a success story.

Perhaps the tape is making contact with some of the electronics, and some insulation between the aluminum tape and the electronics would solve the problem. Perhaps a wire got broken or nicked (or came loose) and a continuity tester would reveal where the problem lies.

kissing
05-25-2016, 04:11 AM
I think perhaps there was something wrong with your Vorson's input jack.

If you unscrewed and got it out, you could probably have fixed it by bending the metal prong that makes contact with the guitar cable plug - it may have been bent the other way not making proper contact.

Inksplosive AL
05-25-2016, 04:53 AM
How disappointing. I was hoping to read a success story.

Perhaps the tape is making contact with some of the electronics, and some insulation between the aluminum tape and the electronics would solve the problem. Perhaps a wire got broken or nicked (or came loose) and a continuity tester would reveal where the problem lies.

Exactly my thought after reading this in the other thread about this issue. Cross posted err double posted umm copied from...


Just go back through it making certain no wires are touching the foil or have come off. Guitar/ukulele electronics are fairly simple. The vorson is not dead forever dont give up on it so easily.

~AL~


I think perhaps there was something wrong with your Vorson's input jack.

If you unscrewed and got it out, you could probably have fixed it by bending the metal prong that makes contact with the guitar cable plug - it may have been bent the other way not making proper contact.

There might now be something wrong with the wires to the jack but he wasn't complaining of no sound from the ukulele before just the typical 60hz hum from house wiring in the USA. IIRC yours would be a 50hz hum slightly different just as annoying.

~peace~