ok so which tubes for evh?

sub · Post by **sub** » Tue Nov 29, 2005 11:43 pm

rockstah wrote:http://www.jj-electronic.sk/index.php?o ... &Itemid=11

wht do you guYS make of this? it appears that the E34L and the EL34 are tHE same frickin tube?

Not same, similar
"JJEL34 is a lower output tube like a JJE34L"

Sub

Necrovore · Post by **Necrovore** » Wed Nov 30, 2005 3:02 pm

The E34L is supposed to be a cross between a 6L6 and a EL34. Something like the growliness and chunk of the EL34 with the clarity of the 6L6.

rockstah · Post by **rockstah** » Wed Nov 30, 2005 3:04 pm

rockstah · Post by **rockstah** » Wed Nov 30, 2005 11:32 pm

5150loveeddie wrote:Tubetramp Mark, Try Terry Kilgore.............

just ordered some tubes from the man

5150loveeddie · Post by **5150loveeddie** » Thu Dec 01, 2005 2:37 am

Good, what are you getting from him?

guitar007 · Post by **guitar007** » Thu Dec 01, 2005 11:04 am

rockstah~

What did you end up ordering?

rockstah · Post by **rockstah** » Thu Dec 01, 2005 11:06 am

"4 harma proto rsm tooled most likley chinese xlnt quality 3 ei mags $110"

i explained in great detail where i was with this amp and knowing i would need to invest in some real glass down the road but wondered if he had anything to offer me before i went and bought some jj/winged c/EH and for what i would spend on them and he said yeah i have some that will be better than any of those and said he would send me what he thought i should use- ill take his word and give them a try

5150loveeddie · Post by **5150loveeddie** » Thu Dec 01, 2005 3:33 pm

Man, Terry introduced me to the old glass and from the very fisrt time I completly flipped on them.........no more modern crap for me, well maybe those Tung Sol 12ax7s.......

One other thing, for the power section if your gonna go with xf2,3 or 4s....a little unmached is WAY better soundind then perfectly matched quads, I do beleive that now, it will increase your even order harmonics....and the tubes are just magical, NOW the unmatched should not be more then 6-8ma on one tube only, just enough to create a "little" unbalance from one side to the other (max it at 10ma, more then that and one side of your primary will start to get hot......and the low ends could become a little muddy some say....), ask Terry about that!!!! I've done it and gave him shit the first time because he send me a quad with one tube 8ma off and he said just play your amp, do you like it? I said yeah, so he said ok I'll send you an other tube closer 2-3ma then try it, so I waited for the tube and did it, and to my surprise, the tone was more sterile not as much "magical". See.. As long the transconductance is ok between them a little 7-8 ma on one tube is better.....just my 2 cents..

Billy Batz · Post by **Billy Batz** » Thu Dec 01, 2005 4:29 pm

Yeah I totally agree about unmatching. I would be fine as long as the lowest and highest differ by less then 10mA. One of the reasons Im using a dual bias in my newest clone is to be able to unmatch or match as closely as I want.

rockstah · Post by **rockstah** » Thu Dec 01, 2005 4:32 pm

5150loveeddie wrote:Man, Terry introduced me to the old glass and from the very fisrt time I completly flipped on them.........no more modern crap for me, well maybe those Tung Sol 12ax7s.......

One other thing, for the power section if your gonna go with xf2,3 or 4s....a little unmached is WAY better soundind then perfectly matched quads, I do beleive that now, it will increase your even order harmonics....and the tubes are just magical, NOW the unmatched should not be more then 6-8ma on one tube only, just enough to create a "little" unbalance from one side to the other (max it at 10ma, more then that and one side of your primary will start to get hot......and the low ends could become a little muddy some say....), ask Terry about that!!!! I've done it and gave him shit the first time because he send me a quad with one tube 8ma off and he said just play your amp, do you like it? I said yeah, so he said ok I'll send you an other tube closer 2-3ma then try it, so I waited for the tube and did it, and to my surprise, the tone was more sterile not as much "magical". See.. As long the transconductance is ok between them a little 7-8 ma on one tube is better.....just my 2 cents..

very kewl! very interesting info there and thanks for pointing me toTerry!:) isnt that what a bias pot does anyway? it matches or not the two groups of two tubes - so what would two bias pots do?

rockstah · Post by **rockstah** » Thu Dec 01, 2005 4:33 pm

Billy Batz wrote:Yeah I totally agree about unmatching. I would be fine as long as the lowest and highest differ by less then 10mA. One of the reasons Im using a dual bias in my newest clone is to be able to unmatch or match as closely as I want.

Dan, now thats what im talking about! that rocks!

yer gonna have to show me that

rockstah · Post by **rockstah** » Thu Dec 01, 2005 5:32 pm

so you just double the bias circuit a sits on the board cause right now the way its sits it adjusts one group of the two groups of power tubes

5150loveeddie · Post by **5150loveeddie** » Thu Dec 01, 2005 6:41 pm

Billy Batz wrote:Yeah I totally agree about unmatching. I would be fine as long as the lowest and highest differ by less then 10mA. One of the reasons Im using a dual bias in my newest clone is to be able to unmatch or match as closely as I want.

Cool Dan, you gonna show that little mod up I hope ?

5150loveeddie · Post by **5150loveeddie** » Thu Dec 01, 2005 6:45 pm

rockstah wrote:
5150loveeddie wrote:Man, Terry introduced me to the old glass and from the very fisrt time I completly flipped on them.........no more modern crap for me, well maybe those Tung Sol 12ax7s.......

One other thing, for the power section if your gonna go with xf2,3 or 4s....a little unmached is WAY better soundind then perfectly matched quads, I do beleive that now, it will increase your even order harmonics....and the tubes are just magical, NOW the unmatched should not be more then 6-8ma on one tube only, just enough to create a "little" unbalance from one side to the other (max it at 10ma, more then that and one side of your primary will start to get hot......and the low ends could become a little muddy some say....), ask Terry about that!!!! I've done it and gave him shit the first time because he send me a quad with one tube 8ma off and he said just play your amp, do you like it? I said yeah, so he said ok I'll send you an other tube closer 2-3ma then try it, so I waited for the tube and did it, and to my surprise, the tone was more sterile not as much "magical". See.. As long the transconductance is ok between them a little 7-8 ma on one tube is better.....just my 2 cents..
very kewl! very interesting info there and thanks for pointing me toTerry!:) isnt that what a bias pot does anyway? it matches or not the two groups of two tubes - so what would two bias pots do?

It controls all four tubes so you can't do anything to play with the matching, it all depends on what the tubes will give you, but with two trim pots (like Dan's...) you could control each side like you want!!!!!

Billy Batz · Post by **Billy Batz** » Thu Dec 01, 2005 6:58 pm

As soon as I get it working better and seperate the interaction betweent he 2 pots a bit more. I spoke to a few people and I think I got it.