EAT Tubes vs. NOS Tubes
- Thread starter zermatt
- Start date
Not yet
Maybe will get to but am burning in some tone arms and hopefully installing a new tt this weekend and two cartridges Soon.Not yet
Thanks! Looking forward to it.
I am not sure I can give a good review of the Eat tube yet as I only picked up the CJ Preamp very recently. Getting used to the new sound.
So far it is sounding very good with the Eat tube.
Just put the MATSUSHITA back in to see how that goes and I am getting a little sound like soft static every now and then (every few seconds or so) with the NOS tube back in. No music playing. Comes and goes like a loose connection or the static from a dirty record. As I am typing this it seems to have gone away.
Here is some more pics of the Eat tube
I also notice with the NOS tube a clicking noise when adjusting the volume coming through the speakers. The CJ has a mechanical click every step of the volume.
Did not hear this at all with the EAT tube.
ADDED: Just put in the other NOS Mit tube and that does not have the little static coming and going like the first one. Brought 2 of them. Still hear the volume clicks through the speakers.
Sorry about all the pics. I hope I am not posting too many.
Last Pic is the NOS tube
So far it is sounding very good with the Eat tube.
Just put the MATSUSHITA back in to see how that goes and I am getting a little sound like soft static every now and then (every few seconds or so) with the NOS tube back in. No music playing. Comes and goes like a loose connection or the static from a dirty record. As I am typing this it seems to have gone away.
Here is some more pics of the Eat tube
I also notice with the NOS tube a clicking noise when adjusting the volume coming through the speakers. The CJ has a mechanical click every step of the volume.
Did not hear this at all with the EAT tube.
ADDED: Just put in the other NOS Mit tube and that does not have the little static coming and going like the first one. Brought 2 of them. Still hear the volume clicks through the speakers.
Sorry about all the pics. I hope I am not posting too many.
Last Pic is the NOS tube
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Thanks! Keep it coming! As for pictures, these tubes sure look brand new. Extremely clean inside and out. If you said they were just made, I would believe it. Look forward to reading more as you get to listen to them more. Very interesting about how quiet they are...seems like microphony not an issue that's for sure.
Here is a file I uploaded of the NOS Mit tube. You can here the volume ping sound through the speakers as I change it and the scratchy noise all the time.
The mike was real close to the tweeters. http://picosong.com/kWkn
Here is the EAT tube. http://picosong.com/kWkc
The click sound is from the preamp itself only.
The EAT tube is quieter than both the NOS tubes and extremely quiet against the orig EH tube but that had a problem, for sure.
Played a whole lot of DJ music and the bass was some of the best I have heard with my setup. Also the music is so open and the vocals are great.
Do these tubes need some time to run in at all? I would say it has a good 30 hours so far and think it is sounding better now than when I first put it in.
I am using a Job 225 amp (I think is 34dB gain) and some Tekton Enzo speakers. 98dB sensitivity 2.83V@1m
The mike was real close to the tweeters. http://picosong.com/kWkn
Here is the EAT tube. http://picosong.com/kWkc
The click sound is from the preamp itself only.
The EAT tube is quieter than both the NOS tubes and extremely quiet against the orig EH tube but that had a problem, for sure.
Played a whole lot of DJ music and the bass was some of the best I have heard with my setup. Also the music is so open and the vocals are great.
Do these tubes need some time to run in at all? I would say it has a good 30 hours so far and think it is sounding better now than when I first put it in.
I am using a Job 225 amp (I think is 34dB gain) and some Tekton Enzo speakers. 98dB sensitivity 2.83V@1m
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Funny my dampers are firmly attached and won't come off. And I have the newest ECC88s like you.
I only noticed this when I went to insert mine. I held onto the red dampner when inserting and it moved on the tube.
You could try placing it on the table pins down and pushing the dampner downwards. I did not need to much force.
I can't see why they would glue any of them. It is firm but moves.
You could try placing it on the table pins down and pushing the dampner downwards. I did not need to much force.
I can't see why they would glue any of them. It is firm but moves.
I looks like the EAT TD is placed too low in the tube, it could touch the preamp base plate. The right position is in the middle of the tube.
Your CJ preamp takes a long time to burn in thanks to the teflon capacitors. My ET-5 about 400 hours, but reached the glory on 600 hours.
The EAT TD is easy to move (adjust). I just placed 3 dampers in my ARTsa tube drivers, they have even several positions for the plastic adjust tabs for different tube diameters.
Roch
Your CJ preamp takes a long time to burn in thanks to the teflon capacitors. My ET-5 about 400 hours, but reached the glory on 600 hours.
The EAT TD is easy to move (adjust). I just placed 3 dampers in my ARTsa tube drivers, they have even several positions for the plastic adjust tabs for different tube diameters.
Roch
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Some units can't use the standard EAT tubes with dampers even when placed in the middle. I had to order my ECC803s tubes without dampers for the Doshi phono stage.
I'm sorry Myles, I just got a Doshi picture. The tubes protrude in the upper plate, then there is no room for the TD.
Thanks,
Roch
What about tube dampers? Herbie's, EAT, simple rings a la CJ and ARC? Nothing? Everyone seems to have a different opinion, and even then people often change their minds.
I have 2 rings on my GZ34 rectifier, nothing on my other tubes (2 Sophia Electric 6SN7's)
I have 2 rings on my GZ34 rectifier, nothing on my other tubes (2 Sophia Electric 6SN7's)
Agreed on the break in hours. Same with my ET5.
Damper should be located in the middle of the tube and be "tight".
I have a couple of threads on this topic. ET5 breakin and the EAT tube.
GG
Now I got some temperature problems with the 3 EAT Dampers I placed on the CJ ARTsa. I first notice this since the I had to adjust the bias on the power tubes all the time, this never happens before I placed the Dampers. I checked tube temperature ans was higher than before. Maybe there is not too much room in the tube drivers compartment, then I removed the upper acrylic plate, but again the tube temperature were too high. Now I'll try Shun Mook and Herbie's Tube Dampers. Just waiting for the Herbie's, since the Shun Mooks doesn't have enough room for them for the 6H30 tubes.
BTW, there is a comment in Herbie's web site regarding tube temperature increase with the EAT Dampers.
I Googled this question but nobody complains. If somebody noticed something similar, please let me know.
Roch
Herbie's website criticizes an alternate tube dampener product.
What a surprise.
Welcome the world of manufacturer warfare.
If you can't beat them, knock em down a notch and see if anyone believes you.
GG
What a surprise.
Welcome the world of manufacturer warfare.
If you can't beat them, knock em down a notch and see if anyone believes you.
GG
