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Post subject: hum at different room positions
Posted: Mon Sep 03, 2007 11:04 am
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After shielding the interior cavity of my Strat, I have significantly lowered the noise levels at all pickup positions. But if I turn the guitar body around, the hum levels at bridge, middle and neck pickups really go up and down.

Could this be something in my house, or just normal for single coils?


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Posted: Mon Sep 03, 2007 11:10 am
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I have the same : hum is lauder or quieter depending on my position.
It also happens when I record on my computer.
I think that it could be connected with magnetic field, and pickup's position relative to this field.


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Posted: Mon Sep 03, 2007 11:13 am
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yeah it will be - I get hum offa loadsa things. It's just interference from other household appliances. I get huge buzzes when the hoover is being used or when someone in the area is welding! It's just one of the quirks I guess :D


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Posted: Mon Sep 03, 2007 11:15 am
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Lights and Major appliances (tv's, computers, refrigerators, etc.) can and will cause enough electrical interference to make a guitar hum.

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Posted: Mon Sep 03, 2007 3:42 pm
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CAFeathers wrote:
Lights and Major appliances (tv's, computers, refrigerators, etc.) can and will cause enough electrical interference to make a guitar hum.


When I get a chance, I will move one of my amps to the garage. Only the power line to the house is also near, so it may not be an acurate test.


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Posted: Mon Sep 03, 2007 3:46 pm
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yeah i get hum of a load of things
i get hum of my pc when it is on and my tv when its on. it get it off my mobile when it is in my pocket and the house phone when some is usin it close by. and the worst hum if off my ipod whn it is chargin and i have my guitar on me and i touch it. man that hum is the loads hum u can get before it gets to buzzin.
joe


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Posted: Mon Sep 03, 2007 3:58 pm
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I had a dedicated circuit run just for my amps and FX. I no longer have that extra hum.

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Posted: Mon Sep 03, 2007 4:02 pm
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CAFeathers wrote:
Lights and Major appliances (tv's, computers, refrigerators, etc.) can and will cause enough electrical interference to make a guitar hum.


Just bought a Fender Blues Junior, and it is reasonably quite most of the time. But this positional hum when using the 3 basic pickup positions is really bad when at maximum volume.

If it is the house, then at least I know the amp is okay. I heard the JR first at another guys house using my same Strat, and it was good.


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Posted: Tue Sep 04, 2007 4:53 pm
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CAFeathers wrote:
I had a dedicated circuit run just for my amps and FX. I no longer have that extra hum.


Hey Chet,

It seems that the magnetic field in my situation is the amp itself. Will a dedicated circuit help in that case?

Does that require a separate box or simply a separate line coming from the original circuit breaker box?

Dan


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Posted: Fri Sep 07, 2007 5:13 pm
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Instead of putting in a dedicated circuit, you could use power filtering equipment manufactured for high-end audio (as in stereos) equipment.


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Posted: Thu Sep 13, 2007 9:00 am
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hi-fi-guy104 wrote:
Instead of putting in a dedicated circuit, you could use power filtering equipment manufactured for high-end audio (as in stereos) equipment.


Would the Monster Power Pro 1000 for $150US be sufficient? I see that prices for noise filtering power supplies have a wide range. I only need a few outlets, and hope to improve my recordings enough to justify at least his much expense.

Power stage 1 filtering with the Pro 800 is about half the cost. Is it worth a try?

Dan


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Posted: Thu Sep 13, 2007 2:58 pm
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Why worry about it? I trained my hum to vary it's pitch. Now it backs up my vocals.


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Posted: Thu Sep 13, 2007 3:19 pm
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CAFeathers wrote:
Lights and Major appliances (tv's, computers, refrigerators, etc.) can and will cause enough electrical interference to make a guitar hum.


Is this a big problem in the USA ?, i always thought single-coil pickups
are more prone to hum and interference.
Never had such major problems over here in Holland.
I always use a earth connection outlet.


Last edited by lostindesert on Wed Oct 10, 2007 2:38 pm, edited 2 times in total.

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Posted: Fri Sep 14, 2007 1:15 pm
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A guitar will still hum in Holand, but it'll hum at 50 hz instead of 60 in the US.

I haven't had any experience with that particular power filter, so all I can say is try it. It might work wonders and it might not.


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Posted: Fri Sep 14, 2007 2:13 pm
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hi-fi-guy,

What power filters are you familiar with that work?

I understand that single coils are prone to some hum/noise, I am just curious about the change at differing positions. If the hum is inherant in the pickup design, why does it decrease if I move the guitar around?

Which is what I try to do when recording, move around until the noise (which is even more noticable in the headphones) is lower.

Fortunately, most of what gets through is covered up, but the silent parts usually require some cleaning up.

hi-fi-guy104 wrote:
A guitar will still hum in Holand, but it'll hum at 50 hz instead of 60 in the US.

I haven't had any experience with that particular power filter, so all I can say is try it. It might work wonders and it might not.


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