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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Tue Nov 01, 2011 10:46 pm
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jaymie66 wrote:
I will take it back somewhere next week... Hate the hassle though, it's heavy and I will have to carry it all the way to the shop.

I guess I'm unlucky. Such a bummer though, damaged my faith in Fender amps just a little bit :P.

I'll let you know when they find out what went wrong.


Probably just a bad tube. The stock tubes are not that great. Certainly not worth all the angst. I went through my BDRI and completly de-rattled it. Dead quiet now. I'm fighting a nasty rattle right now in my heavily modified Champion 600. Driving me nuts but with the help from the people in this forum I know I'll figure it out. I certainly don't lose any sleep over it.

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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Thu Mar 29, 2012 2:57 am
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I forgot to tell what was wrong with the amp.

I brought it back to the shop I bought it from. They confirmed the 'annoying sound' and sent it back to Fender (Germany).

When I got it back Fender couldn't tell what was wrong. They replaced all the tubes and the speaker. Now it is working fine.


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Thu Apr 05, 2012 12:15 am
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bluesky636 wrote:
jaymie66 wrote:
I will take it back somewhere next week... Hate the hassle though, it's heavy and I will have to carry it all the way to the shop.

I guess I'm unlucky. Such a bummer though, damaged my faith in Fender amps just a little bit :P.

I'll let you know when they find out what went wrong.


Probably just a bad tube. The stock tubes are not that great. Certainly not worth all the angst. I went through my BDRI and completly de-rattled it. Dead quiet now. I'm fighting a nasty rattle right now in my heavily modified Champion 600. Driving me nuts but with the help from the people in this forum I know I'll figure it out. I certainly don't lose any sleep over it.


How did you de-rattle it?

I'm not happy the way it sounds. I understand it's my guitar making the buzz when I'm not touching it, but when I play certain notes, there is an annoying buzz/rattle coming out of the amp. I don't think that should happen.

Does anyone have any experience with this?


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Thu Apr 05, 2012 12:59 am
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Definitely worth checking the preamp tubes (the three smaller ones) as your rattle could be a microphonic tube.

Take the back off the amp and any covers off the preamp tubes. With the amp on and volume turned up a bit just tap each one lightly in turn with the eraser on the end of a pencil. (Don't put your fingers in!) Does any them them respond in any way other than a dull thud (if that)? If one rings out at all it's past its best and is a possible cause of the noise you're getting on certain notes. You'll want to replace it with another one of the same type (12AX7).

My BDRI arrived brand new with a microphonic tube that caused several notes (low A especially) to really sing out and rattle. It's an annoying problem but replacing the dodgy tube will fix it.

There is a pile of interesting discussion on the Forum about which brand of tubes is best for whatever amp/style/taste - happy reading!


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Fri Apr 06, 2012 11:44 pm
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jaymie66 wrote:
My BDRI arrived brand new with a microphonic tube

Mine was a noisy valve and a speaker with bad sound on bass notes such as G if I remember well. After repairing no issues so far.
8)

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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Tue Apr 10, 2012 1:18 pm
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Thanks for the great advice.

The thing is, I'm really new to this, so I'm reading as much as I can. I haven't looked into the world of amplifiers yet, so I don't even know what a preamp is. I took a quick look, I could see those GT-12AX7-C sticking partly out of what seemed like some sort of a foamed wrapping. Do I take this wrapping off too? And when I'm doing this procedure, what exactly am I listening to?

I thought I bought a fairly good amplifier: plug and play. :P

Do you happen to have a URL to that discussion, or do you happen to know the topic of that thread?


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Tue Apr 10, 2012 1:54 pm
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Jaymie - don't worry, your amp will soon be perfect!

Pull the foam thing down off the tubes. It's just there to give them some support and stop them vibrating around. With the amp on and the volume up reasonably high, maybe 5 or 6, tap those little tubes lightly with something firm that won't damage them: the eraser on the end of a pencil is ideal.

What you're listening for is basically any loudish, lively sounding response. There shouldn't be anything more than you'd get if you tapped it on a wooden table top. If you hear a ringing like an empty glass being hit that will indicate a problem and the tube is due for replacement.

Your amp is fine to play as it is, and a microphonic tube won't damage it. But if that's what's causing the irritating noise the cure is to replace the tube. For now, why not replace it with the same make it came with, the Groove Tube. Later you might have some fun switching in other brands to hear the differences they can make.

Hope that helps. I'm more musician than technician myself, but this is one of the jobs you can feel confident about doing yourself!


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Wed Apr 11, 2012 12:03 am
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Thanks a lot sir, nice to see someone taking their time to respond.

I will try this later today if I have time. I went looking for information about amps yesterday as you suggested. Suddenly it was 2 hours later, great stuff! Now I want to change the tubes and maybe even the speaker. :P

I will let you know how the preamp tubes respond to the 'tapping'.


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Wed Apr 11, 2012 2:40 am
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I had the same problem when I got my BDRI. Had one microphonic tube. My amp was used, but only 2 or 3 months old when I got it. It is mint, practically new.

My thread is almost the same as this one. Lots of good info. I changed out all of the preamp tubes and love the sound. Here's my thread:

viewtopic.php?t=63584

This keeps alot of info from being repeated, as the veterans here probably get tired of saying the same thing all the time. But most of them don't mind. They've been really helpful for me.

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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Wed Apr 11, 2012 4:50 am
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Thank you Bluesman1904.

I already searched the forum. I did read your thread. I just started playing guitar and amps are like 'Greek' to me, as you mentioned yourself one time. :P

I came across some good info. I will try the 'pencil/eraser' method as soon as I can. The thing is, my amp suddenly got a loud rattle. I sent it to Fender for a repair. Now that I have it back the loud rattle is gone, but I probably have a microphonic tube in the preamp.

I will let you guys know what I've found when I checked it out.


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Wed Apr 11, 2012 8:20 am
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So I'm home. I thought I should give it a try. I'm totally new to this and I know zero about electronics.

I did not know what to do exactly: do I plug my guitar in the amp while doing this pencil/eraser procedure? Do I plug it in input 1 or 2, do I not plug the guitar in? etc.. So I tried all possibilities.

I did not get any 'glassy' sound from the amp, but, I didn't get any sound whatsoever. I tapped and tapped, but the speaker just wouldn't give any feedback. I assumed some sort of sound would occur when I tapped the preamp tubes. Also no 'slap at wooden table' sound. I'm guessing I missed something important while doing this.

Could someone help me out?


Last edited by jaymie66 on Tue Apr 17, 2012 2:50 pm, edited 1 time in total.

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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Wed Apr 11, 2012 8:28 am
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Hi, me again.

No need to plug in your guitar when you do this, but the volume should be moderately high on the amp. If all is well you should hear next to nothing when you tap the tubes. (Not like a slap on a table, just a dull tap with your pencil eraser, no resonance).

If a tube is microphonic you can't fail to hear it chiming quite distinctly as you tap it, it's like the tube is alive.

So maybe there's nothing wrong with the tubes after all?


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Wed Apr 11, 2012 8:58 pm
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Hello, Tom. Good to see you.ha You never did change your last name to Deluxe, or whatever it was. :D


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Thu Apr 12, 2012 12:25 am
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I tried it like that: w/o the guitar plugged in and the volume of the amp fairly high (5/6). The tube did not make a glassy sound or other strange sound when I touched it. There actually was no sound whatsoever. Only the sound of me tapping the tubes, nothing came out of the speaker.

It better not be the guitar, which wouldn't make any sense to me to be honest. But since I'm completely new to this you could fool me into believing anything.

I guess I will send it back for the second time. I will let you guys know what Fender Germany had to say this time.


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Post subject: Re: Fender Blues Deluxe Reissue (BDRI)
Posted: Fri Apr 13, 2012 6:13 am
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GTG wrote:
Hello, Tom. Good to see you.ha You never did change your last name to Deluxe, or whatever it was. :D


LOL, no I've got quite attached to my aristocratic status.


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