Anyone ever have, use or hear this tube?

Total BS onthe hype even these so called10,000 tubes that’s not  realistic under laboratory perfect circumstances, that’s made up ,even if a tube could play that long it’s far past it’s optimum .I have had tubes since the 1970s  .

these rare tubes youtruly don’t know if they are matched, or even used unless 

you have a tube tester.tube sellers put out ads and buy these  from all over the world in lots from people’s garages cellars used in equipment .

believe inly1/2 of what you read . I have been there done that ,and true vintage tubes are getting more rare ,anything NOS will be a premium over $500-$1k a pair 

such as these Tele tubes mentioned , 

@audioman58 

Are you the Yoda of A'gon? Or perhaps James Joyce?

I re-read your posts multiple times.....

Spellcheck and editing would help.

Just sayin'

And yes, NOS are harder to find. As are good tube testers.

@thecarpathian 

Yes, yes, yes. You named some terrific tubes.

I haven't heard of Simply Italy. Will look it up.

When my F-I-L passed we inherited BOXES of signal and rectifier tubes and a Hickok tube tester. I spent the better part of a summer testing tubes. Most were microphonic. The ones saved are in plastic boxes...never used, rarely thought about.

I'll be interested hearing what you end up doing.

David

Don't know about the 12A family, but I did a bit of rolling when I had an ARC SP10. Very good were Telefunken 6902, but standard T 6902 were almost poor beside the Telefunken 6902 specially selected by HP. They came with both T and HP seals.

Rumour in 1970's LA was that engineering co-op students spent a lot of time at HP testing tubes, discarding more than 95% to the dumpster. Which explained why HP want 10x the price for their tubes. 

Yeah, anything labeled for lab equipment and such used the tested cream of the crop. And you pay for those little letters and stickers!

@audioman58 ,

You think you’re the only one with tube knowledge and experience? I’m well aware of where nos tubes come from. They are what I research and buy exclusively. I’m also aware of the common ones, the rare ones and the ones in between. I’m aware of the applicable prices. I’m also aware of reputable companies that sell them, tested, matched, and readings confirmed with a print out. Although I appreciate you taking time to post, your blunt, rigid statements leave a bit to be desired.