Tried 6CA7`s in the BE...

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The BE100 is voiced around JJ EL34s and they are what Dave recommends...using anything else is counter productive to getting the most from this amp.
 
rupe":jo5cyljv said:
The BE100 is voiced around JJ EL34s and they are what Dave recommends...using anything else is counter productive to getting the most from this amp.
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You got that right.

That being said, i just got a brand new set of ARS JJ EL34`s from Dave, i had two red plate a while back. Put them in, biased @ 32ma and bam, instant glorious tone that the BE is known for came back. I ain`t trying anything else in there ever. It was based around these tubes and it`s the way it is, period.

I love this amp.

Chris
 
Are the EH brighter sounding than the JJ's?
Also.. how does the ARS JJ/Tesla EL34 (I guess this is rebranded, either russian or slovakian tubes) differ from the Standard JJ EL34? - like these:
254299.jpg
 
Jofipe":24d6upko said:
Are the EH brighter sounding than the JJ's?
Also.. how does the ARS JJ/Tesla EL34 (I guess this is rebranded, either russian or slovakian tubes) differ from the Standard JJ EL34? - like these:
254299.jpg
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Same tubes
 
Just tested and matched. Can't say enough about ARS tubes...it's what Dave puts in these amps for a reason.
 
Well for some reason the ars tubes sound better . Tried both and I can't explain why. Maybe it there test procedures.
 
Dave,

What bias number are the JJ EL34 tubes from ARS?

Thanks
 
TheGhost":31wy9d38 said:
Dave,

What bias number are the JJ EL34 tubes from ARS?

Thanks
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I just asked ARS when I ordered to send me the tubes that Dave recommends. The first guy had no clue what I was talking about but another guy did. The number is 34.
 
Thanks, I appreciate you both for checking.
It would be nice to know for sure if they use a set number or a range though.
 
Looks like we have a pattern forming.

Thanks to everyone who's checked and posted, I really appreciate you all taking the time.
 
sgill72":16s66evy said:
Did the same thing and got 38's. Go figure...
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I was wrong...the 34s were older ones that I had. ARS just sent me 46s??? I'm beginning to think they send you whatever the hell they grab. The originals are 36s.
 
ARS just told me that they supply Dave with 35ma to 70ma tubes for the BE100. That is insane. Am I the only one who knows how drastically a quad set of 35ma tubes will differ from 70ma tubes when both are biased at 32ma? I really am finding it hard to believe that these amps are built with such a wild spread in tubes bias rating. If you had 70ma tubes, then your amp would be so much tighter than someone with 35ma tubes, who's amp would be breaking up way, way sooner and have an entirely different distortion characteristics.
 
Most all the ones we get are 35 to 50 rating from ars. They seem to be fairly consistent sound wise. What these number really mean is different with every tube vendor. Also in production you are happy that the tubes just work these days.
 
Matin at ARS was the one who said 35ma to 70ma, which seemed to be a crazy range. 35 to 50 is still going to make a noticeable difference in any amp's breakup point and characteristics.
 
hunter":2vuwg14x said:
I'm big on experimenting with tubes, bias, etc etc.

The Brown Eye is the one amp I received where I wouldn't touch a thing. I'd just wanna freeze it in its state and make sure it always stays like that.
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Same here!
 
Mattfig":3dyucy6w said:
hunter":3dyucy6w said:
I'm big on experimenting with tubes, bias, etc etc.

The Brown Eye is the one amp I received where I wouldn't touch a thing. I'd just wanna freeze it in its state and make sure it always stays like that.
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Same here!
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Lol

Just got a notification of a reply to this thread, its a 4 year old thread :lol: :LOL:

Still loving my BE. It is a newer one though.
 
Back to JJ vs EH 6CA7s - they are different tubes internally. The JJ is not really a 6CA7, whereas the EH is. I get out of my depth on this stuff pretty quickly, but it was explained to me at length a couple of years ago. Something about one being a true "beam tetrode" and the other not.
 
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