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Old 01-12-2009, 02:42 PM   #1
scratchcomposit
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Peavey 6505 + 6l6 replacement tube reccomendations

I appreciate this is probably old ground so please bear with me, i have done some research and read the articles on what tubes are considered good.

I have recently discovered a blown 6l6gc tube in my Peavey 6505+ (far left tube).
I have been told i can remove the far right tube and safely play @ 60 watts if i alter the impedance on my cab, so this we will help for now.

My problem is, i want to replace a quad set and have a set that sounds better than the stock tubes (i was going to do this anyway as i heard alot of big bands change the stock tubes)
I want a set that works well for metal/rock with a tight low end and alot of thump.

What would everyone recommend for this amp and would i need to rebias the amp?
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Old 01-12-2009, 02:58 PM   #2
CrysisFX
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for the most part i would say that tubes are tubes. there are some crap made ones but you not going to see any drastic tone changes because you have to put the same type of tubes back in.

if you want good tubes go to a tube store and ask the guy to match up a quad set of the best 6l6's he has. GC should even be able to do this for you.
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Old 01-12-2009, 07:54 PM   #3
spiff389
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mesa tube sound good. so do jj's and tungsol's. i have ruby's in my marshall, el34's, but still, i like them.
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Old 01-12-2009, 08:03 PM   #4
scratchcomposit
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Yeah from what i have seen, price point and general comments the 6L6GC JJ/TESLA's seem to be fairy good.
I've found a matched quad set for 53 so that seems fair to me. Would it be recommended for me to take my amp to get the bias adjusted by someone who whos how to do this/can i plug and play/or is it easy to do at home (bearing in mind im new to tube/valve amps)?
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Old 01-12-2009, 08:20 PM   #5
BigRob91
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I'm pretty sure you don't have to bias the 6505, might be wrong though
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Old 01-12-2009, 08:53 PM   #6
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6505/5150's are fixed bias!

Just swap old for new and your done. I personally recommend JJ's.
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Old 01-13-2009, 08:38 AM   #7
scratchcomposit
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its a 6505+ though.
Until the tubes arrive i was advised i should remove the far right tube and drop the immedence to 4ohms (currently its matched at 8 for my marshall cab) to safely run it at 60 watts..can anyone confirm this?
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Old 01-13-2009, 11:32 AM   #8
TheEsupremacy
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Quote:
Originally Posted by AdRev
6505/5150's are fixed bias!

Just swap old for new and your done. I personally recommend JJ's.

Wrong.
The 6505+ has a bias adjustment and should be biased every time the power tubes are swapped.

To bias the 6505 order a multimeter and bias probe from Eurotubes for $35.
Set multimeter to 200ma. Insert the tube socket adapter in any tube socket on the amp. Then, insert brand new power tube into tube socket adapter. Power on amp and allow to warm up for approx. 2 minutes. Take amp off standby. Set bias at 36ma. Turn off amp and allow to cool. Remove tube from adapter, then remove adapter from power tube socket on the amp. Insert power tube. Congrats, your amp is properly biased.

I have used many brands of tubes in my 6505 and have found the best to be

Winged =C= 6L6's.
JJ 6L6's
If you're hurting on cash, the Sovtek 6L6WXT+'s work nicely at $46 for a matched quad.
Hope this helped.
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Old 01-13-2009, 02:47 PM   #9
Van Noord
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Remember, bias levels are recommended. Some players like their tubes biased colder and some like them hotter.
The only reason to use the recommended levels for 6L6's and EL34's is so that the power amp isn't running too hot, causing red plating. Or too cold, causing a lifeless tone.
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Old 01-13-2009, 02:50 PM   #10
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SED =C= 6L6s are the best ones I've tried so far.

JJs work well in Peaveys.

Mesa tubes are a waste of money imo, they're just rebranded tubes tested to work in their amps and then the price is jacked up on them because it says Mesa on it
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Old 01-13-2009, 03:02 PM   #11
scratchcomposit
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Thanks very much for all the advice guys...been very helpful, much appreciated.
I'm going with the JJ's and i'll look into the bias option if i'm not satisfied with the sound
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Old 01-13-2009, 04:22 PM   #12
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Quote:
Originally Posted by MatrixClaw
SED =C= 6L6s are the best ones I've tried so far.

JJs work well in Peaveys.

Mesa tubes are a waste of money imo, they're just rebranded tubes tested to work in their amps and then the price is jacked up on them because it says Mesa on it
+1. I can't stand Mesa labeled tubes.
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Old 01-13-2009, 05:06 PM   #13
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Quote:
Originally Posted by Van Noord
+1. I can't stand Mesa labeled tubes.

Yeah, the only reason I've been using them lately is cause I got a whole bunch of extra ones with an amp I got, so no point in putting them to waste
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