The Reference 6SN7 Thread

[mgsu]

Brass brush on a rotary tool works wonders. If you don't have one, just get a small brass bristle brush from the hardware store.

Ive done it with 400 sand paper. I put the pin inside the crease the sandpaper creates when folded and sanded all the pins down. It worked like magic. Thanks guys!

 

[ejk1]

is anyone familiar with any of the newer production 6SN7 tube by Psvane , Linlai or from EH and Tung sol? im curious if they are any good.

The Linlai is a well-balanced tube. Great alternative to some NOS tubes

 

[ajm87]

The Linlai is a well-balanced tube. Great alternative to some NOS tubes

Great thanks for the info. Do you know if they are alot wider in size than standard 6sn7s I'm trying to see if it will fit in my TA26 with shouldered power tube

 

[ejk1]

Great thanks for the info. Do you know if they are alot wider in size than standard 6sn7s I'm trying to see if it will fit in my TA26 with shouldered power tube

What type of tube. The Linlai are about 2.5 inches wide

 

[ajm87]

The power tube I have is a RCA 6AS7G bottle shape

 

[ejk1]

These are the measuerements 2.2 inches wide

 

[triod750]

Ive done it with 400 sand paper. I put the pin inside the crease the sandpaper creates when folded and sanded all the pins down. It worked like magic. Thanks guys!

I use to clean them afterwards with electronic spray on a cotton bud. This removes a lot of dirt that won't accumulate in the amp socket.

 

[mordy]

The Linlai is a well-balanced tube. Great alternative to some NOS tubes

As with many Chinese tubes the Linlai 6SN7 comes as several variants at different price points. Does anybody know if there is any real difference between the lower priced and higher priced tubes of the same designation?
Some of the tubes are for wholesale distribution (although available from Chinese vendors) and others for individual sale, with a large spread in price.
Historically this is a new development. I’m the past you could find more rugged or longer life variants of the same tube, (and sometimes tubes with tighter tolerances and less microphonics) but not fancier packaging, print, or color schemes or different shapes (globes vs ST etc).

 

[LobalWarming]

As with many Chinese tubes the Linlai 6SN7 comes as several variants at different price points. Does anybody know if there is any real difference between the lower priced and higher priced tubes of the same designation?
Some of the tubes are for wholesale distribution (although available from Chinese vendors) and others for individual sale, with a large spread in price.
Historically this is a new development. I’m the past you could find more rugged or longer life variants of the same tube, (and sometimes tubes with tighter tolerances and less microphonics) but not fancier packaging, print, or color schemes or different shapes (globes vs ST etc).

Can you check back in 50-60 years? By then Head-Fi will have developed a holy grail canon for these models to provide the definitive 'historically-correct' answer.

 

[ejk1]

As with many Chinese tubes the Linlai 6SN7 comes as several variants at different price points. Does anybody know if there is any real difference between the lower priced and higher priced tubes of the same designation?
Some of the tubes are for wholesale distribution (although available from Chinese vendors) and others for individual sale, with a large spread in price.
Historically this is a new development. I’m the past you could find more rugged or longer life variants of the same tube, (and sometimes tubes with tighter tolerances and less microphonics) but not fancier packaging, print, or color schemes or different shapes (globes vs ST etc).

I bought mine from Grant Fidelity. I wasn't looking to hem and haw about it

 

[ajm87]

Was just curious on how they sound and if they are worth while alternative to vintage or NOS.

 

[ejk1]

What type of tube. The Linlai are about 2.5 inches wide

Was just curious on how they sound and if they are worth while alternative to vintage or NOS.

YES

 

[JTbbb]

Bought this tube the other day, very nice sound, but more for the reason that I already own a pair for Envy…and it just seemed logical to buy a single for the Crack! I only posting now with a few pics as I like the box. Sad I know .

 

[TLO]

Bought this tube the other day, very nice sound, but more for the reason that I already own a pair for Envy…and it just seemed logical to buy a single for the Crack! I only posting now with a few pics as I like the box. Sad I know .

Always a fan of NU sound...have various 6SN7/VT-231 versions, 6C8G, 6G6G.

 

[leftside]

I personally would clean them using deoxit which is a cleaning spray for electronics. If you don't you could end up corroding the socket in your amp

Be very careful that deoxit goes nowhere near the glass as it very easily removes print on the glass. Also don’t want to get deoxit anywhere near the tube sockets.

I use a Dremel with 3mm wool felt mounts. Maybe for very badly corroded pins you might want something more extreme, but I’d be very careful. Most of the tube pins I see just need a good clean.