Tung-Sol KT170 tube question

[FSHZ42]

I'd like to order (2) matched pair of these Tung-Sol KT170 tubes. I have heard that when they first came out, they had some issues and then supposedly fixed whatever it was that was causing problems. I'm not certain of this, just relaying what I read and heard.

My question is does anyone know where I could buy some that would have the latest batches from Tung-Sol? I've also read where they do take a rather long time to settle/burn-in?

Thanks in advanced!

 

[JonSnell Electronic]

https://www.hificollective.co.uk/catalog/kt170-tung-sol.html
https://www.langrex.co.uk/products/kt170-tung-sol-new-boxed-factory-matched-pair-valve-tube/
https://www.tubeampdoctor.com/en/tung-sol-kt170-beam-power-tetrode/russia
https://www.vivatubes.com/copy-of-n...D2CIt0xPpRW9YG6rH44P6FJwTqz6ojnVHcBY9mN5Eqwlp

Here is a list of suppliers that took 5 seconds to find on the gargler (google), probably a good start for you.
I am not affiliated with any of them nor would endorse these valves.

 

[neodymium]

It seems overpriced tube.

 

[FSHZ42]

Did you not fully understand what I said? I know where they sell them, I just want to make certain they don't still stock the ones that had issues!

 

[dubadub]

Any reputable seller will replace a tube that fails prematurely. A really good one would offer a replacement with similar characteristics. But if you really want this rather new tube, you're gonna have to take the risk.