Tung Sol KT 170

They're ugly!

Here's hoping a few things will apply..1) They do not need a revised transformer design, as the KT150's required 2) they are reliable and consistent and 3) they don't give off too much heat!

A little more info.
https://primalunablog.com/2020/10/30/tung-sol-kt170/

"The Tung-Sol KT170 has a power dissipation of 85 watts allowing amplifiers using a pair of these tubes to reach power output levels in excess of 300 watts."  That's a lot of juice and heat! 

I would imagine an amplifiers transformer requirements no less than what is needed to handle the KT150?  

Dear lord its like the receiver wars of the 70s more and more power.