#1
Ok, so my Peavey 6505+ probably needs a some new tubes in it. When I got it, it sounded like a dream, but then the tone sounded flat and just bad. Well it was a floor model which had been there for quite some time, from my recollection. So despite the amount of time, it probably isn't that far off.

So it has some 6l6's in it, which I'm guessing are stock tubes. So since this is my first tube amp, I'm completely new to the subject. I'm guessing I need to replace all the power and preamp tubes.

But would this be a job for professionals to do? Or could I possibly do it by myself? And what tubes would you recommend?
#2
you could absolutely do it yourself.
If you feel lack of gain,effects or something like that change pre-amp tubes.
If you feel lack of volume power tubes.
if you feel both...change both
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#3
you can do it yourself, I think, I have a Peavey 6505 and it did the same thing

but than I left it alone and the tubes like came back to life.. (IDK dont ask me) lol

I recommend getting some 12ax7 tubes
My Gear:
Gibson Flying V (active Emg's 81, 85)
Peavey 6505 Amp

Avatar Cab /w Vintage 30's / G12H-30's
Schecter Damien-6
ISP Decimator
Vox Wah Pedal
Ibanez TS808 Tube Screamer
Roland Cube 60
#4
Quote by Kozlic
you could absolutely do it yourself.
If you feel lack of gain,effects or something like that change pre-amp tubes.
If you feel lack of volume power tubes.
if you feel both...change both



The volume sounds fine, it's the tone that just sounds dead and flat.
So then I would change the pre-amp.

Those are the 4 main tubes you see from the back correct?

Quote by Hammett5
you can do it yourself, I think, I have a Peavey 6505 and it did the same thing

but than I left it alone and the tubes like came back to life.. (IDK dont ask me) lol

I recommend getting some 12ax7 tubes


What would be the difference in tone from 12ax7's from 6l6's?
#6
i would not recommend doing it yourself, if you have no idea how to do it... at least watch someone change tubes the right way before attempting it yourself.

it's easy enough to pop out the tubes and put new ones in, but you have to set the amp up for the new tubes too, and test them properly.

basically, you'll get a better result with a professional. i recommend getting ALL the tubes changed to, since then you'll know exactly how old the tubes in your amp are. plus it'll sound awesome.
#7
Quote by dissident52
The volume sounds fine, it's the tone that just sounds dead and flat.
So then I would change the pre-amp.

Those are the 4 main tubes you see from the back correct?

What would be the difference in tone from 12ax7's from 6l6's?

The smaller ones are preamp, larger are poweramp. And I believe 12ax7's are preamp and 6l6's are poweramp tubes.
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#9
No need seriously, it would take the store about 3 minutes, it's like changing a light-bulb
For actual tubes, I would recommend the JJ 6L6's and the Tung-sol 12AX7's
Last edited by Horlicks at May 10, 2008,
#10
Well I'm kind of looking at the Tung-Sol 12AX7 and the Electro-Harmonix 6L6GC for both power and pre-amp.

Yes or no?
#13
I think 6 preamps and 4 poweramps.
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