The Reference 6SN7 Thread

May 30, 2021 at 1:09 PM Post #4,396 of 10,669
A smorgasbord for the birds?
 
May 30, 2021 at 5:19 PM Post #4,397 of 10,669
This morning I am running some fine Melz tubes. 1961 on the right, 1954 oval mica with perforated plates on he left. Both are Incubus amps I built but the one on the right was a version one so I am adding upgrades.

Mr Paladin... always reminds me of the Paladin I had when I played D2 and that was so looooong time ago. Anyway Paladin, you have some nice looking Incubus amps. Can you describe the tone of Melz 1578? In comparison to some famous tubes I've heard and owned. Such as Tung Sol 6sn7gt black glass round plates, Sylvania 6sn7w metal base and Mullard ECC33 / ECC35 / ECC31. Or even the Ken Rad 6sn7gt black glass.
 
May 30, 2021 at 5:28 PM Post #4,399 of 10,669
This is what's on-deck for me today, assuming I can get my lawnmower running without spending the entire day on it. :laughing:
When you're done with your lawn, do mine. What is that mini tube you have there? I'm looking for some renown 12au7, 12at7 and 12ax7.

By the way it's my day off so I'm going to the audio shop to audition a .... guess what? This ! I want to know if that statement is true and the only thing I have for comparison is my iphone earbud.

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May 30, 2021 at 5:52 PM Post #4,401 of 10,669
No that's no possible. 'My' GE are appreciating in value every minute.

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You probably got a lucky pair, which tubes are those and in which amp
 
May 30, 2021 at 6:07 PM Post #4,403 of 10,669
I'm using the Fotons now. Trying to drive up the value of those tubes for Bcowen. Look at the glow from the Cossor 53ku rectifier and Mullard 6080 power tubes. Somehow I kept this Wa22 because it's the only amp I've left that link me with 6sn7 and 6as7 / 6080. I've gone on to KT88, EL34 and 300b.

At 12 noon on the volume dial with gain on the M51 set to +6dB, the LCD4 sounded ok. Ok maybe better than ok. :)

Folks don't write off the Fotons. They actually sound like they are doing their job well in this setup.

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May 30, 2021 at 6:17 PM Post #4,404 of 10,669
These are the only 6sn7 I've left. Have to build from here again. Which is basically ground zero. Alright have to start somewhere.

Fotons, Sylvania 6sn7gtb chrome glass and Sylvania 6sn7gt smoke glass.

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May 30, 2021 at 6:17 PM Post #4,405 of 10,669
Mr Paladin... always reminds me of the Paladin I had when I played D2 and that was so looooong time ago. Anyway Paladin, you have some nice looking Incubus amps. Can you describe the tone of Melz 1578? In comparison to some famous tubes I've heard and owned. Such as Tung Sol 6sn7gt black glass round plates, Sylvania 6sn7w metal base and Mullard ECC33 / ECC35 / ECC31. Or even the Ken Rad 6sn7gt black glass.
tone huh. Well those from the fifties and early sixties can be very accurate across the entire audio spectrum without weighing down any segment. Wonderful bass, mids, and especially highs. A couple have also rated toward the top in a 6sn7 equivalent shootout friends and I are doing and that is against most any tube you can name, bar none. Mind you this is in the preliminaries, final evaluation will be with around fifty people.
 
May 30, 2021 at 6:33 PM Post #4,406 of 10,669
tone huh. Well those from the fifties and early sixties can be very accurate across the entire audio spectrum without weighing down any segment. Wonderful bass, mids, and especially highs. A couple have also rated toward the top in a 6sn7 equivalent shootout friends and I are doing and that is against most any tube you can name, bar none. Mind you this is in the preliminaries, final evaluation will be with around fifty people.

Sound promising those Melz 1578 and 50 people? Well count me in as 51st and Bcowen as 52nd. Sounds like the United States of America.

Well I forgot I have these Tung Sol 6f8g black glass round plates rebranded Art (Garfunkel) :wink: These are selling for https://www.ebay.com.au/itm/333518372841 and mine are NOS NIB but I've got about 20 hours on them now. :)

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May 30, 2021 at 6:48 PM Post #4,407 of 10,669
Sound promising those Melz 1578 and 50 people? Well count me in as 51st and Bcowen as 52nd. Sounds like the United States of America.

Well I forgot I have these Tung Sol 6f8g black glass round plates rebranded Art (Garfunkel) :wink: These are selling for https://www.ebay.com.au/itm/333518372841 and mine are NOS NIB but I've got about 20 hours on them now. :)

IMG_2495.jpg
We have in excess of 1500 tubes including equivalents. Most of the folks involved in the final testing are 20-30 years of age, a few in their forties, after age fifty people tend to lose an octave as I recall. Now as far as selection, only eight of us were involved to rate what we believe are the best 52. :ksc75smile: To be towards the top tells you a little about some of the Melz, and we rate on 25 criteria.
 
May 30, 2021 at 7:28 PM Post #4,408 of 10,669
I have a perfect pair that even the Queen wanted but I will exchange it for your pair of Western Electric 300b tubes. I will even pay shipping both ways. How's that for generosity?
LOL! That's like saying you have a nice bicycle you'll trade for a Ferrari. Despite my genuine appreciation for your generosity, I'll need to think about that until a second ago. :smile::smile:
 
May 30, 2021 at 7:34 PM Post #4,409 of 10,669
When you're done with your lawn, do mine. What is that mini tube you have there? I'm looking for some renown 12au7, 12at7 and 12ax7.

By the way it's my day off so I'm going to the audio shop to audition a .... guess what? This ! I want to know if that statement is true and the only thing I have for comparison is my iphone earbud.

It's a Foton 1539. It's a premium version of a 6N5P or maybe a 6N1P....seems to be conflicting info out there. Pinout is the same as a 6922, and the ratings are within 6SN7 parameters so it shouldn't cause a meltdown or house fire when used as such. Unfortunately the mower got the best of me today and I haven't had time to listen. Finally got the electrical problem solved and now the carburetor is leaking. Things just don't last any more...I mean the thing is still fairly new at 20 years old, right? :laughing:
 
May 30, 2021 at 7:35 PM Post #4,410 of 10,669

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