[bcowen]

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[rtaylor76]

"The 6CG7 was unique in having a shield between the two sections. This was removed as a cost-cutting measure in the 6FQ7."

https://www.effectrode.com/knowledge-base/the-6sn7gt-the-best-general-purpose-dual-triode/

Later, RCA and others would label as 6CG7 without the shield. Some are labeled as both. In 1954, RCA came up with the 6CG7 with the spec of the shield. RCA and GE were trying to push to 9-pin miniature at that time.

 

[bcowen]

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[Zachik]

GE (how the hell did that get in my stash?)

Bill - we know you secretly use the GE tubes to listen to Britney Spears music on weekends! No use denying...

 

[bcowen]

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[441879]

Geeez, man. I told you that in confidence. I feel violated.

we all suspected.... Not that there’s anything wrong with that.

 

[rtaylor76]

Most 6CG7's won't have a shield between the two sections.

 

[RestoredSparda]

Kenrad just arrived. It has some light burn marks on the top but I'm hoping it doesn't have too many hours on it. I purchased it from a pretty reputable ebay seller, and it certainly weren't cheap! Excited to test it against the new production Tungsol (which I quite enjoy) and a few two hole Bad Boys.

 

[KoshNaranek]

Kenrad just arrived. It has some light burn marks on the top but I'm hoping it doesn't have too many hours on it. I purchased it from a pretty reputable ebay seller, and it certainly weren't cheap! Excited to test it against the new production Tungsol (which I quite enjoy) and a few two hole Bad Boys.

I don't think that those are burn marks. I believe that it is getter material that travelled up the plates during the flashing process.

 

[bcowen]

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[Deyan]

Hello everyone. I'm building something custom for the LYR3 and was wondering if anyone can tell me the diameter of the hole for the tube in the chassis of the amp.

 

[malenak]

I have to write some words about my JJ 6SN7.

From the begining after the purchase I was not somewhat impressed and there was also some review on the internet, that it sounds bad on Schiit Freya 2 or something. But here is my thoughts after probably more than 100 hours with it. JJ 6SN7 sounds now just awesome!!! I don`t know if it sounds this good immediately or if it opens up after some burn. Today I put to Lyr3 russian stock tube to compare it, but what a bloat. JJ is absolutely on another level. Its spacious, the soundstage is way more bigger, it is crisp, detailed, spacious, it sounds sweet and there is absolutely awesome subbass with LCD-2C which is completely missing with russian stock tube. That slam is ridiculous. It hits strong, deep and I mean very deep, but detailed and refined. With JJ I have a feeling that music plays around me and I am somewhere inside. With russian stock it is like music is playing in smaller sphere.

I can highly recommend JJ 6SN7. For that price it is crazy good!

If this is like someone said bad tube, I really can not wait to try something like Psvane. Any recommendations for another tube which I should try?

 

[LoryWiv]

I have to write some words about my JJ 6SN7.

From the begining after the purchase I was not somewhat impressed and there was also some review on the internet, that it sounds bad on Schiit Freya 2 or something. But here is my thoughts after probably more than 100 hours with it. JJ 6SN7 sounds now just awesome!!! I don`t know if it sounds this good immediately or if it opens up after some burn. Today I put to Lyr3 russian stock tube to compare it, but what a bloat. JJ is absolutely on another level. Its spacious, the soundstage is way more bigger, it is crisp, detailed, spacious, it sounds sweet and there is absolutely awesome subbass with LCD-2C which is completely missing with russian stock tube. That slam is ridiculous. It hits strong, deep and I mean very deep, but detailed and refined. With JJ I have a feeling that music plays around me and I am somewhere inside. With russian stock it is like music is playing in smaller sphere.

I can highly recommend JJ 6SN7. For that price it is crazy good!

If this is like someone said bad tube, I really can not wait to try something like Psvane. Any recommendations for another tube which I should try?

I recently rolled the new production Tung Sol 6SN7GTB into my Feliks-Audio Elise driver position and am very impressed. I can't speak to how they'd perform in Lyr3 but they are inexpensive as well, may be worth a try!

 

[bcowen]

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[Deyan]

Thank you @bcowen it seemed smaller in the pictures. But I'll alter the adapter just to be sure.