Blackburn Micro Tech Tubes no longer?

The order site is still up and they show them as being in stock. Hopefully they will still fulfill orders until the stock is depleted.

https://shop.blackburnmicrotech.com/stock_list.php?categoryid=1

Roger that -- naturally, I'm crossing my fingers.

Have ANY of these new tubes made it into circulation?

Hoysauce, yes, TechTubes has been shipping for a couple of months now. The only tube they have currently is the E813CC, (12AX7). I bought (4) when they first launched. They are VERY nice. The 12AU7 was due next this autumn, then the 12AT7 was due this winter, but who knows now...

And eventually, KT88's (and EL34's) to name a few more that were planned.