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-   -   What is wrong with my amp? (http://www.ultimate-guitar.com/forum/showthread.php?t=1566574)

George Juggles 10-06-2012 02:35 PM

What is wrong with my amp?
 
Hi

Lately, my amp, Peavey classic 30, has been making a loud buzzing sound. It is not louder than the guitar, but is noticeable when you are not playing. I checked my cables individually, and they are OK, and went through each of my two pedal, and they were OK too. So it only makes a sound when everything is together. What is wrong with it?

Thanks
George Juggles

seljer 10-06-2012 02:38 PM

How are you powering your pedals? Your issue kind of sounds like a ground loop.

George Juggles 10-06-2012 02:41 PM

I am using a godlyke daisy chain, but when the pedals are by themselves they don't make a sound. It is only when they are together, even if they are not on.

bassmastamitch 10-06-2012 02:42 PM

Have you tried a different guitar?

R45VT 10-06-2012 02:47 PM

Doesnt sound like anything is wrong with your amp.


I am I correct that it only makes noise when all of them are hooked up? Even if they ate not switched on?

George Juggles 10-06-2012 02:48 PM

Just did, and it still makes the sound.

R45VT 10-06-2012 02:49 PM

It sounds like noisy power supply

Have you tried the pedals on batteries only, not plugged in to your daisy chain?

George Juggles 10-06-2012 02:50 PM

Quote:
Originally Posted by R45VT
Doesnt sound like anything is wrong with your amp.


I am I correct that it only makes noise when all of them are hooked up? Even if they ate not switched on?


Yeah, that's correct. But By themselves, they are silent.

George Juggles 10-06-2012 02:51 PM

Quote:
Originally Posted by R45VT
It sounds like noisy power supply

Have you tried the pedals on batteries only, not plugged in to your daisy chain?


No, I'll do that.

George Juggles 10-06-2012 02:58 PM

I tried it with batteries, and the buzzing went away. So what can I do to use a power supply and not have buzzing?

Ps. My amp has also been making a bit of static noise, is that just the tubes that need to be replaced?

bassmastamitch 10-06-2012 03:03 PM

What are the pedals?

George Juggles 10-06-2012 03:03 PM

EHX Attack EQ and Jimi Hendrix wah

R45VT 10-06-2012 03:06 PM

What are the mA ratings on the pedals and on the power supply?

George Juggles 10-06-2012 03:11 PM

I don't know.

seljer 10-06-2012 03:12 PM

Try making sure the power supply and amp are hooked up to the same outlet

R45VT 10-06-2012 03:15 PM

You need to know this. It will say somewhere on the pedals and on the power supply.

If the pedals are too close to max supply of the chain you can get noise. That's why it works well with 1 pedal but not 2. You might just have a crappy cheap supply anyway.

Find the numbers.

George Juggles 10-06-2012 03:18 PM

The power supply is 300mA and the EHX doesn't say, the wah doesn't say either.

R45VT 10-06-2012 03:42 PM

At 300mA I think it's to low.

I don't want to dig through my closet to find my one spot.

Maybe you want to pick up another better type? A one spot, fuel tank jr, etc.

If you want good answers maybe a new thread to help you.

R45VT 10-06-2012 03:46 PM

The onespot is 1700mA. It's 15 bucks or so.


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