Hi Crubio,
Not yet, he sent me an email stating maybe in the next few days.
Once he comes I'll post the readings.
Joe
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Wyan001, check out my thoughts between my J2 and Franks in this thread on 3-13-15.
I rolled a few different 6em7s. I didn't find any noticeable differences.
The rectifier and 300b make worthwhile improvements, IMHO.
Joe |
Charles, I'm looking forward to your take on the Elrog myself. Your input in the past helped me purchase my Franks and 300b tubes. I'm very happy with my purchases. Thank You! |
Pani, I have a First Watt J2. It is an excellent SS amp, but I like my Frankenstein 300b amps better.
The J2 goes deeper in the bass is a little more dynamic and has very good resolution, but compared to my Frankenstein 300b amps the trailing edge is shortened and isn't as liquid sounding. Using a video analogy the J2 is 1080p and the tube amp is 4K. The pixels (grain) are smaller.
I like both, but my Franks are more organic sounding and engaging.
Joe
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That's high praise and with more hours it should only get better!
Thanks Charles, please give us updates once the tubes have more hours. |
George Lenz gave me a call and asked if he can come over and get the voltage reading across the tubes in my Franks. This way we'll know for sure what the true voltages are.
The Elrog team wants to know and asked George if he can get them.
George is a stand up guy and is making sure that the Elrogs will work reliably in our amps. I commend him for his customer service and dedication.
I'll let everyone know once we get the readings.
Joe
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Ok Al, thanks for the tip will do.
Best,
Joe |
Well, after waiting so long for my Elrog's. The Post Service lost my first pair. George was kind enough to send me another pair last Saturday (I wish I would have waited). I see I won't be able to use them with my Franks.
I hope George (Tubes USA) will exchange them for ones that will not be stressed in our Franks.
I did listen the them for a few hours. They sound very good out of the box, very smooth and refined. Hopefully, with more hours they would surpass the Takatsuki's, as of now I still like the Taks better in my set-up. |
Charles, it was just a quick opinion. Once they are fully burned in then comes the critical listening. I might just like them better then the highly regarded Taks and EML's, will see.
Hopefully, Elrogs team will come up with a solution.
Joe |
Charles,
George at first asked me if I could get the reading. I told him I wasn't really comfortable doing it, so he said he'll do it when he has a chance to come.
That is very nice of him because he isn't to close by.
Joe |
Almarg,
I forgot to tell you what a great asset you are to this audio community with your technical knowledge and easy to understand answers.
I thank you, Sir
Joe |
Ok, George from Tubes,USA came by Friday and took the measurements.
He requested I hold off this information until he lets Elrog know his findings, which I will honor. I'll let everyone know sometime this week.
First he tested all the tubes on his tube tester. They all came back testing excellent.
These are the 300b we used in the Franks:
Elrog
EML XLS
Takatsuki
Psvane HI-FI series (stock tubes that came the amps)
The cathode resistor measured value in my amp was 1.025k
He tested for plate voltage and cathode voltages.
I'll let you know the results once George talks with Elrog.
Joe |
Charles, George said I should have no problem using the tubes in my amps. Yours are older then mine, make sure the cathode resistors are the same and the rest of the values didn't change.
Best,
Joe |
George told me today that 122 volts isn't really the limit but with over voltage can easily spike to 125 or higher, which would be a problem.
Sorry if I didn't stress that better.
Joe |
I use a Puerpower 1500+ for my whole system with excellent results.
It doesn't restrict dynamics and the sound is much clearer and smoother.
They have a very good product but their customer service isn't the best unfortunately. It's to bad because it really is a great product.
Joe |
Matthias, I too am waiting for George to send me a suitable pair for my Franks.
Thanks to you and George for sorting all this out. It's commendable of you two.
Best,
Joe |
Well after comparing the Elrogs to the Taks I can say the Elrogs are the better sounding tubes with my Franks.
They have wonderful weight and fullness of tone without losing detail and transparency. They are very musical, with piano in the lower registers they are so natural.
The Taks are a little thin in the upper bass and lower midrange in comparsion, but excels in the upper midrange and treble.
The Taks have excellent air and spaciousness and tighter bass.
They are both excellent, but IMS the Elrogs are better.
Hopefully, Elrog fixes the reliability problems. This is my second set that George Lenz gave me to better match my Franks. One of them failed in less then 40hrs. He replaced the bad tube and I'm keeping my fingers crossed that they will last.
They are really wonderful tubes and just make music hopefully, we'll have no more problems, we'll see. George stands behind his tubes and has great customer service so no worries there.
Joe
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Dracula1, To be clear the first set didn't fail. George took them back for a new set that better matched my Frank's higher voltages.
George is great to work with and he stands behind his tubes!
Here is his website: tubesusa.com |
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I was just going to ask about the GG but, Charles beat me to the post, LOL.
Hopefully, you'll be ok with the AC heating design. The GG suppose to be really special, Good Luck!
Let us know how it works out for you. |
Ok, here is the information that George emailed me.
Hi Joe,
You can post this data. Be sure to mention that customers of these amplifiers test their AC line voltages(AC Voltmeter). Over 122V AC is a game changer for these or any other 300B tubes. Ideally, in their home they should be have voltages in the 114-122V range. If they have excessive voltage, they should purchase a "variac" as a means of protection for their equipment.
Best,
George
Hello Joe,
Here it is the recent data taken from Friday's testing......
Takatsuki 300B 474V plate 33 watt dissipation
84 V across cathode
Elrog 300B 484V plate 32 watt dissipation
79V across cathode
EML 300BXLS 486V plate 31 watt dissipation
75V across cathode
Psvane 300B 484V plate 30 watt dissipation
74V across cathode
Line voltage 119.4VAC
Cathode resistor value 1.025K ohms
Best,
George
I hope this helps,
Joe |
Hi Dmarkov,
I have my Taks almost 2 years. They are well broken in and the Elrogs had less then 100 hrs.
They are both excellent tubes. The Elrogs give me a little more body to instruments, which I like. |
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Charles, unfortunately one of my replacement Elrog tubes failed also. George is going to replace them once he gets a suitable pair in.
I'll be waiting for your opinion on the resistor replacement ,hopefully the sound won't be degraded. If it makes them last in our amps that would be great, fingers crossed. They are wonderful sounding tubes to bad we're having issues with them.
Oh well, I put back the EML's and they sound very good with nice dynamics and drive, not as musical as the Elrogs but, I can easily live with them in my Franks along with the Taks.
Joe |
Hi Charles,
Now that you have more hours of listening, did changing the resistor degrade the sound in any way using the EML XLS's, Taks, or Elrog's?
Best,
Joe |
Hi Pani,
I had a FW J2 amp as my back-up amp. I use Frankenstein Mk.2 300b's as my main amp.
The J2 is a very good amp, detailed, very open, fast, great bass, but the Franks are more liquid and sound more natural in tone and timbre.
The J2 had a slight grain compared directly the SET amp. Don't get me wrong it is a wonderful amp, but the 300b's push my buttons more! |
