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2359glenn | studio
Aug 22, 2018 at 2:41 PM Post #21,901 of 39,986
Wow Mordy how is that so expensive.

That is what the seller says :)

Mei Li means beautiful.

Sylvania 6SN7A / W Metal Base kingly, There was a lovely midrange, extended high-frequency and special "Mei Li", regardless of location, dynamic, analytical and hierarchical interpretation of the sound field, and the performance of the human voice charm and sense of the scene, are sufficient to exemplary, which is the production of tubes Sylvania detached arcane.
 
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Aug 22, 2018 at 3:06 PM Post #21,903 of 39,986
I will listen to my RCA 5691 again. Didn't spend too much time with it.

This is TubeDepot's review of it. :)

The 5691 RCA Red Base is the Holy Grail of 6SL7 tube types. Built to last 10,000+ hours, this tube is rich and melodic with an overall smoothness that can't be beat. Take this chance to own the best 6SL7 variant on the planet. We have multiple brands on hand, but all are RCA *made* Red Base 5691.
 
Aug 22, 2018 at 3:50 PM Post #21,905 of 39,986
UntilThen said:
I will listen to my RCA 5691 again. Didn't spend too much time with it.

This is TubeDepot's review of it. :)

The 5691 RCA Red Base is the Holy Grail of 6SL7 tube types. Built to last 10,000+ hours, this tube is rich and melodic with an overall smoothness that can't be beat. Take this chance to own the best 6SL7 variant on the planet. We have multiple brands on hand, but all are RCA *made* Red Base 5691.
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Hi UT,
Speaking about expensive tubes, I am thoroughly enjoying my Baldwin/Sylvania 12AU7A (JV's recommendation) with 6xBX. Paid $11.50 for a pair including shipping a few days ago.
In Oskari's spirit, here is my "verbose" review:
Sweet and Silky.
upload_2018-8-22_15-49-23.png
 
Aug 22, 2018 at 3:57 PM Post #21,906 of 39,986
wazzupi said:
But that isn't a ecc35 is it ?
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Hi W,
Not at all, just another kingly tube (Sylvania 6SN7W) found in the upper price stratosphere.....But as you can see from my previous post, a great sounding tube in the GOTL does not have to be expensive at all.
I think Glenn stated that he designed his amp to sound good with inexpensive tubes.
 
Aug 22, 2018 at 5:16 PM Post #21,908 of 39,986
mordy said:
Hi W,
Not at all, just another kingly tube (Sylvania 6SN7W) found in the upper price stratosphere.....But as you can see from my previous post, a great sounding tube in the GOTL does not have to be expensive at all.
I think Glenn stated that he designed his amp to sound good with inexpensive tubes.
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I agree i have 10-20 dollar tubes that sound great but i love my Sylvania 6sn7w chrome top metal base nothing sounds like it.
 
Aug 22, 2018 at 9:50 PM Post #21,913 of 39,986
2359glenn said:
I don't promote the use of 5998s no matter how good they sound I had another one do it but it didn't damage the head phone.
This was a 2399/5998 maybe bad luck but to many of these tubes arc over. I don't even like putting the 5998 switch in amps anymore
because it promotes the use of them.
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So far I have been lucky with 5998/421A/6089/6AS7 tubes, I treat them with heater current on only for 3 days before turn on high voltage. A process I learn from owning Atma-sphere OTL power amplifier.
 
Aug 22, 2018 at 11:00 PM Post #21,914 of 39,986
First and foremost, tubes must be quiet for me. Like dead silence.

I had Brimar 13D1 with 6 x GE 6bx7gt and there's an annoying hum. Quite loud. These same 6 x GE 6bx7gt were quiet with my other drivers. So it's not the power tubes problem.

It's not the Brimar 13D1 problem either. I have 2 bought from Langrex at a cheap price. So I have the 13D1 paired with a pair of equally cheap Svetlana 6h13c. It's dead silent now and good tone too.
 
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