[geoffalter11]

Never say never, I think James Bond said that.

Haha

 

[sam6550a]

The 6N12S is NOT a 6SN7 substitute. It is close to a 6BL7 which has higher current draw than a 6SN7. Beware of Ebay sellers listing comparable tubes...some are not only wrong but quite dangerously wrong.

A prime example of the fact that a little knowledge can be very dangerous.

 

[ColSaulTigh]

@Paladin79 @ColSaulTigh
Thanks for all your experience and advice on the tube re-soldering.
I have a pair of MELZ that were noisy and microphonic in my Freya+.
They caused very loud pops to emit from the speakers upon powering up that scared the hell out of me.
I've since relegated them to storage, and read most if not all the posts covering the process of pin re-soldering.

I decided to practice on a 6F8G that read all zeros on the Amplitrex AT1000.
After removing the old and applying new solder, the 6F8G now reads as new!

Feeling a bit more confident, I moved on to the MELZ pair last night.
Again removing old and reapplying new solder. I first tested the MELZ in my WA22, and no noise or microphonics were present!
Today I re-installed the MELZ into the Freya+ and am happy to report that they are dead silent now!

One 6SU7GTY that I purchased has a very slight crackling noise that won't go away by tapping on it, tonight I will re-solder that pair.
Photos show 6F8G reading before and after re-soldering.
MELZ pins before, during and after re-soldering.

That's fantastic!

I'm no expert by any means, and I'm still dealing with a pair of Melz that refuse to behave. But it's good to know others are now taking up the cause and putting a little effort in to save some really fantastic tubes!

 

[ColSaulTigh]

They are scarce and expensive. The war cost me my main contact.

Andrii?

 

[Paladin79]

That's fantastic!

I'm no expert by any means, and I'm still dealing with a pair of Melz that refuse to behave. But it's good to know others are now taking up the cause and putting a little effort in to save some really fantastic tubes!

I had one Melz I must have worked with five times before it straightened out, it is so hard to know the condition of the wire inside the pin even with an inspection microscope.

 

[Paladin79]

Andrii?

Nope, another gentleman.

 

[PeterNL]

Hello guys.
Can someone help me to identify this beauty ?
Hytron JAN-CHY 6SN7GT from 1951.
I bought it for 10€ from my friend. Is this tube comparable to Sylvania, RCA, Tung-Sol...?

Update 1.10.2022

Today I got 2 another tubes delivered
- Ken-Rad 6SN7GT
- Sylvania 6SN7GTB "Chrome top ?"

I'm going to test these and try to compare to Hytron (Bad boy ?)
Still waiting for Foton '54, Novosibirsk '70 and Melz '52 (non 1578) to be delivered from Ukraine.

Ken-Rad:

Sylvania:

 

[Paladin79]

I just built another audio rack and immediately filled it. 5 6SN7’s and various other tubes.

 

[Ranger Ron]

I just built another audio rack and immediately filled it. 5 6SN7’s and various other tubes.

I have something similar, but nowhere near as tidy!

 

[geoffalter11]

I have something similar, but nowhere near as tidy!

Quite the set up! Very cool! Mine is so boring in comparison to all of these... 2 amps, 1 DAC and then a 2nd system with an Audio-GD R28.

 

[jonathan c]

Quite the set up! Very cool! Mine is so boring** in comparison to all of these... 2 amps, 1 DAC and then a 2nd system with an Audio-GD R28.

** just visually … the enchantment begins with ‘ignition’…

 

[geoffalter11]

** just visually … the enchantment begins with ‘ignition’…

Indeed. My system sounds sublime! Just no fancy audio rack. Just great components, headphones and music.

 

[Paladin79]

Indeed. My system sounds sublime! Just no fancy audio rack. Just great components, headphones and music.

I can add other pieces but this setup uses two tube class A amps, two tube headphone amps, a transport, turntable and DAC. Power is regulated to a constant 120 v on all gear, Sonus Faber speakers with REL subs. This is the sound I want. Tubes are also TOTL.

 

[jonathan c]

I can add other pieces but this setup uses two tube class A amps, two tube headphone amps, a transport, turntable and DAC. Power is regulated to a constant 120 v on all gear, Sonus Faber speakers with REL subs. This is the sound I want. Tubes are also TOTL.

Holy grail? No, wholly yours! What else matters?

 

[bcowen]

I just built another audio rack and immediately filled it. 5 6SN7’s and various other tubes.

Sweet! I hope you put 6SL7's in the phono stage. Gonna be mighty noisy with 6SN7's.