Fender amp chimey ringing sound coming from the amp

Stoneroses6300 · 8th September 2006

Just wondering if anyone has any idea what would be going on with this fender deville 212 I'm using...THere some sort of sleighbell like ringing sound coming from it in the lower frequencys...WHen playing the lower strings of my electric...I think the same thing was happening with the fender twin I was trying to record also...I put my ear to the back of the amp and it looks like its coming from the box in of where the 2 smaller tubes are...If anyone has any experience of this let me know...This is also when the amp is powered and mid-high on volume/drive...

Getting a good clean overdrive on guitar is proving to be quite difficult without a bunch of ugly subtle noises included...

C/G · 8th September 2006

Are the noises coming out of the speakers? If so, it could just be a tube that went microphonic.

dbbubba · 8th September 2006

sounds like that to me

tubes
Pre amp tubes going microphonic.
You should be able to tap them and get a similar response.

Danny Brown

Gregg Sartiano · 8th September 2006

Probably microphonic tubes.

With the amp on & at decent volume (i.e.: the level at which you're having problems), bang the top of your amp with your fist (not too hard -- don't hurt yourself) -- if you hear a pronounced 'ring' when you do this, the tubes are microphonic for sure.

Oops. db said pretty much the same thing. I guess I like my fist-to-the-top-of-amp method better...

If you're in luck, it'll be a preamp tube -- cheap & easy to replace (no biasing necessary).

pan60 · 8th September 2006

i will take a screw driver or something and just tap lightly on the side off the pre-amp tubes to check for a bad microphonic one.
you will know when you get to the right one.

dbbubba · 8th September 2006

I once recorded a demo in the mid '80s for these metal heads called Rigor Mortis who were on Capitol I believe and the GTR player had two small Marshalls that had horribly microphonic pre amp tubes. The "BAD" tubes played a large roll in the sound. It was kinda' cool sounding!

Danny Brown

dbbubba · 8th September 2006

BTW... they are easy to replace, but the preamp tube can change the sound of the amp drastically. Get a proper sounding replacement if it is microphonic.

Some good sounding tubes ARE microphonic!

Danny Brown

8th September 2006	#1
Stoneroses6300 Lives for gear Joined: Jun 2006 Posts: 672 Thread Starter	Fender amp chimey ringing sound coming from the amp Just wondering if anyone has any idea what would be going on with this fender deville 212 I'm using...THere some sort of sleighbell like ringing sound coming from it in the lower frequencys...WHen playing the lower strings of my electric...I think the same thing was happening with the fender twin I was trying to record also...I put my ear to the back of the amp and it looks like its coming from the box in of where the 2 smaller tubes are...If anyone has any experience of this let me know...This is also when the amp is powered and mid-high on volume/drive... Getting a good clean overdrive on guitar is proving to be quite difficult without a bunch of ugly subtle noises included...

8th September 2006	#2
C/G Lives for gear Joined: Dec 2004 Location: Canada Posts: 2,829	Are the noises coming out of the speakers? If so, it could just be a tube that went microphonic. __________________ ------------------------------------------------------------------------

8th September 2006	#4
Gregg Sartiano Lives for gear Joined: May 2004 Location: Lost Angeles Posts: 1,804	Probably microphonic tubes. With the amp on & at decent volume (i.e.: the level at which you're having problems), bang the top of your amp with your fist (not too hard -- don't hurt yourself) -- if you hear a pronounced 'ring' when you do this, the tubes are microphonic for sure. Oops. db said pretty much the same thing. I guess I like my fist-to-the-top-of-amp method better... If you're in luck, it'll be a preamp tube -- cheap & easy to replace (no biasing necessary). __________________ "We need to legitimize peer-to-peer sharing as a business model, because it's already a business. If [the P2P companies] are going to make money on us, we should have a chance to make money along with them." -- Perry Farrell on the failure of national intellectual property policy to keep up with the rapid evolution of online media "Every Internet transmission of a musical work constitutes a public performance of that work. " http://www.ascap.com/weblicense/webfaq.html

8th September 2006	#5
pan60 500 series nutjob Joined: Nov 2004 Location: 500 series Guru SKANK! ; ) Posts: 10,940	i will take a screw driver or something and just tap lightly on the side off the pre-amp tubes to check for a bad microphonic one. you will know when you get to the right one. __________________ www.pan60.com Pan60 Facebook Page Pan's Facebook BLAST PAD Inventor just one invention among others. A CHARTER MEMBER OF THE 500 FORMAT, MAFIA it is easy to sound as though one was endowed with great intelligence, whilst speaking amongst a crowd of total morons

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8th September 2006	#3
dbbubba Banned Joined: Sep 2005 Posts: 7,099	sounds like that to me tubes Pre amp tubes going microphonic. You should be able to tap them and get a similar response. Danny Brown

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