eurotubes and rectos...

[cellardweller]

Indeed, and how does it apply to Single Rectos, which do not have tube rectification??? :?

 

[mikey383]

I've been running a pair of E34Ls in my Dual for almost two years on silicon diodes with no problems. It gets used at least 6 hours a week too. Did the same on my last Recto as well.

 

[mikey383]

I did when I first put them in, but I don't recall what they biased at. I've been wanting to do it again lately, but I keep forgetting. I'll try to get it done this week and I'll post the findings.

 

[jtb226]

I'm running E34L's on diodes and love the tone. Even if the tubes burn out faster, I'm going to keep it that way. I just love the sound of them. As long as it won't harm the internals, I'll keep it on diodes.

 

[mikey383]

I'm running E34L's on diodes and love the tone. Even if the tubes burn out faster, I'm going to keep it that way. I just love the sound of them. As long as it won't harm the internals, I'll keep it on diodes.

True dat. I freakin' love the tone I get from them. I don't think I'm going to harm anything internally. If that were the case, I'm sure it would have happened by now.

 

[Undeadpaladin]

I'm using El34's with SD on... it just sounds alot better. What will happen, just the power tubes burn out faster or some sort of interal problems? If its just the tubes i can deal with paying to retube more often for the killer tone.

 

[Core9]

I'm using El34's with SD on... it just sounds alot better. What will happen, just the power tubes burn out faster or some sort of interal problems? If its just the tubes i can deal with paying to retube more often for the killer tone.

The tubes will just wear out faster.

 

[ANIMATED SUSPENSION]

The Dual and Triple rectifiers are set very cold in the 6L6 mode even when in the solid state rectifier mode and the bold setting. So even the hottest 6L6's on the planet will still not get the bias as high as it could safely be run. When in the EL34 mode the bias is quite warm with even a moderate grade of EL34's which is why Mesa will tell you that if you're going to use EL34's that you have to run them in the tube rectifier mode. The reason for this is because when the stock 5U4 rectifiers are switched in the plate voltage drops from about 475 on average to about 415 volts so in turn the bias goes down.

is that true?

No, it's not true, it doesn't mention anything like that in the user manual !!!

 

[songrider]

If you got any questions about Mesa I would contact them.

I tried the Eurotubes GZ34 option in my Dual rec once - (ONCE) and it popped a fuse. When I called and talked to Bob about it he told me to up the fuse size in my amp.

"I dont think so"

Bob might know tubes but Mesa knows amps... They build them that way for a reason... Contact Mesa with any questions about tubes and such... I dont believe they would steer you wrong!

 

[MusicManJP6]

I've had good luck with the JJ KT77's from Eurotubes in my RoV combo. They have a really unique tone. I switch back and forth b/w the KT77's and the stock 6L6's and usually go back to the KT77's soon after swapping them. I tried a set of JJ preamp tubes in it and they were harsh as anything! I'm going to Dougstubes for my next set of preamp tubes next time I have some more money. He sells all brands rather than being restricted to just JJs...

 

[Silverwulf]

Oddly enough, I'm the other way around. I tend to use JJ's in my preamp, but not often in my power amp. I like them because they're a little high gain, stay relatively defined, and they're a darker sounding tube. Of course, I use an interesting mix of tubes (pre and power) in my Recto so they sort of balance each other out.

 

[mikey383]

I'll use JJs in the power amp, but I tend to not like them so well in certain positions in the preamp. I don't remember exactly what I have in there right now, but I think I have a Ruby in V1, a Chinese 9th Gen in V2, and the rest are JJ.

I had about 30 12ax7s laying around that came out of various equipment, and I just started swapping around until I got something that I really liked.

 

[kmanick]

I've been running KT-77's in my Rectoverb with great results and zero problems.
if you call BOB at Eurotubes and tell him what head they are going into
he will send you a set in the right range.
(I have sets of KT-77's, EL34's and 6l6's all JJ's from Eurotubes).