The Reference 6J5 Thread (L63, 6C5, 12J5, 6P5, etc.)

[JTbbb]

Some amps have tube sockets with just the heaters connected for the sake of nice glow. This is a brilliant solution!

How about a nice clock. You have to be seriously into tubes

 

[Xcalibur255]

There's still a glass tube inside of those metal cans. Might make for an interesting experiment to try to liberate a pair. I've done this with C3g, but the metal cans on those are technically two pieces. These might be harder to pry open without breaking what's inside but if I had a rusty pair I paid 10 dollars for I would still be tempted to try.

 

[mordy]

There's still a glass tube inside of those metal cans. Might make for an interesting experiment to try to liberate a pair. I've done this with C3g, but the metal cans on those are technically two pieces. These might be harder to pry open without breaking what's inside but if I had a rusty pair I paid 10 dollars for I would still be tempted to try.

Not sure if you mean the metal tubes. The 6C5/6J5 tubes etc only have a piece of glass on the bottom to hold the pins.

https://vinylsavor.blogspot.com/2013/03/tube-of-month-6j5.html
The bottom of this post shows the construction of a 6J5 tube taken apart.

 

[Xcalibur255]

Not sure if you mean the metal tubes. The 6C5/6J5 tubes etc only have a piece of glass on the bottom to hold the pins.

https://vinylsavor.blogspot.com/2013/03/tube-of-month-6j5.html
The bottom of this post shows the construction of a 6J5 tube taken apart.

That's very interesting. I wouldn't have thought a metal can with a seal would hold vacuum integrity like that. I've read that vinylsavior post too and somehow forgot that. Getting old I guess.

 

[triod750]

That's very interesting. I wouldn't have thought a metal can with a seal would hold vacuum integrity like that. I've read that vinylsavior post too and somehow forgot that. Getting old I guess.

We all want to become old. You are in good company...

 

[David A Silva]

How about a nice clock. You have to be seriously into tubes

Very cool. I want one!

 

[mordy]

That's very interesting. I wouldn't have thought a metal can with a seal would hold vacuum integrity like that. I've read that vinylsavior post too and somehow forgot that. Getting old I guess.

There are 6J5 tubes similar to the C3g with a metal shroud and glass underneath - the Visseaux 6J5M tubes.

 

[incredulousity]

I'll admit my bias in wanting to see a nice G L O W from my bottles!
The only exception to my self imposed rule is the C3G.
I would have a very difficult time with any funky rusted metal tubes......even if they were dirt cheap and sounded glorious!!!

Um… and G73r

No glow, but not metal cans.

 

[nwavesailor]

There are 6J5 tubes similar to the C3g with a metal shroud and glass underneath - the Visseaux 6J5M tubes.

YIKES!!!!!!! Talk about a cruel looking tube.............that is IT! I have Visseaux 6J5 but G for glass not M for Monstrosity

 

[JackarlTwo]

Adapters arrived today from Deyan (very nice adapters) so I got to try out the rusty Ken-Rad 6C5's. They sound good, but one of them is noisy, like a constant white noise. Upon closer inspection I noticed one of them is made by RCA. I don't know if there's a difference between one made by Ken-Rad or one made by RCA. I found another KR pair that looks much better from the photographs but they're untested.

 

[JTbbb]

YIKES!!!!!!! Talk about a cruel looking tube.............that is IT! I have Visseaux 6J5 but G for glass not M for Monstrosity

Visseaux seem to have cornered the market . Sound good though!

 

[triod750]

Adapters arrived today from Deyan (very nice adapters) so I got to try out the rusty Ken-Rad 6C5's. They sound good, but one of them is noisy, like a constant white noise. Upon closer inspection I noticed one of them is made by RCA. I don't know if there's a difference between one made by Ken-Rad or one made by RCA. I found another KR pair that looks much better from the photographs but they're untested.

Most of my tubes were untested and work very well. I have a tested ECC81 that measures very low and sounds excellent in both OTC and OTL. Untested tubes are usually cheaper. I wouldn't worry.

 

[mordy]

Adapters arrived today from Deyan (very nice adapters) so I got to try out the rusty Ken-Rad 6C5's. They sound good, but one of them is noisy, like a constant white noise. Upon closer inspection I noticed one of them is made by RCA. I don't know if there's a difference between one made by Ken-Rad or one made by RCA. I found another KR pair that looks much better from the photographs but they're untested.

The Ken-Rads sound different than the RCA tubes - usually better bass, but both are good.
As Triod750 stated, don't worry about untested tubes; the main thing is that they work.

 

[mordy]

I'm a bit biased regarding metal tubes and no 'glow'. I do, however, really like the C3G so I'm not 100% all glow all the time!

Found something something for you nw - a Tung Sol 6W6GT tube:

Together with a TFK ECC85 it sounds as nice as it looks in my Ultimate.
Well - this is the night version.
Here is how it looks with the lights on in the room:

Still very nice tube glow colors...

 

[jonchard]

That is spectacular! How do i get it working in a 6SN7 socket? Peeeerrrrr-leaaaassee?