New tubes just arrived.
The issue with the fragile filaments has been addressed. First measurements show perfectly identical plate curves for matched pairs. The first pair is running in my amps and sounds as beautiful as the samples which I tested in October.
The new tubes also have a different base.
I will run extensive tests on each pair over the weekend. If all tests are satisfactory I will start shipping tubes next week. Thanks to everybody who put in a pre order for their patience. I expect to ship all pre orders within the next 3 weeks.
I am now also taking new pre orders.
The price of the tubes is 975,- Euros per pair within the EU (including VAT) or 820,- Euros export price outside the EU.