Most Musical 6NS7 tube for a Preamp?

Wow! Thank you for your quick response! I almost pulled the trigger on the 'non  Dawning' Series WE6SN7 PLUS tubes on Amazon.

On the 6NS7 tubes, I bought the Don Sach’s Valhalla amp with upgraded Linlai 6NS7 tubes and they sound great. I was able to compare them to the "stock" tubes sent with that amp and they were much better, in my opinion. I haven’t tried the E series of those tubes but I will when these tubes no longer function. There is at least one thread on these tubes. They are larger tubes so you might have to use socket extender(s) to fit them in.

https://forum.audiogon.com/discussions/linlai-e-6sn7-tubes

I just pulled the trigger on (2) matched ’poor mans’ Marconi 6SN7’s, the Canada Marconi 6SN7 5692 6SN7GTB Copper Rods 3 Holes code date 1952. Right now I have matched 1940’s (1) Sylvania 6SN7W metal base and (1) Sylvania 6SN7GT metal base in my LTA Microzotl MZ3. I’m also in the works with Andy of Vintage Tube Services to purchase (2) Matched Sylvania 6SN7GT 1952 ’Bad Boys’.

@ptrck887 thank you, thank you, thank you, for taking the time and effort to patiently walk me through the educational process to get the right tube. After comparing the picture of the Canada (Marconi) GE 6SN7 5692 6SN7GTB Copper Rods 3 Holes tube with the Canada Marconi 6SN7 5692 6SN7GTB Copper Rods 3 Holes code date 1952, they were identical. The Canada Marconi’s 6SN7 5692 6SN7GTB tubes are taller than other 6SN7’s and that’s when I knew I had the right tube. It was just the luck of the draw that the Canada Marconi 6SN7 5692 6SN7GTB tube is dated 1952. And another good thing is the (2) Canada Marconi’s only cost me $170 US including tax and shipping with a 30 day return policy.

The Canada Marconi’s were bought out of country so it’s going to take a while for me to get them and burn/run them in, but I will keep everyone posted.

Here is a link to Canada Marconi 6SN7 5692 6SN7GTB for tube(s) reference: The Reference 6SN7 Thread - Canada Marconi - page 641

Thanks tyray,

Once you have them and get them burned in let me know how they sound in your MZ3!

Enjoy

A friend lent me a box of 6SN7s to try in my Supratek.

Most of the preferred older ones were there including the Ken Rad VT231,Brimar CV1988,RCA Grey etc .My pick was the Toshiba 6SN7 GB.The most neutral,open ,clean and detailed.Second was probably the Ken Rad VT231.What is best though probably comes down to your system.If you want a big meaty sound then the RCA Grey are like that.Some people say voluptuous.Not neutral though.