Modwright PH 9.0X Tube Rolling Question

I also are running the Siemens E88 w/sovtek 6C45s. Just ordered a set of Mullard M8080/4058 (premium 6C4). They should be here in a few days. From what I’ve read, they should be a MAJOR upgrade to the Russian tubes. I should know by the weekend after putting a few hours on them.

Now for as changing the fuse (IDK), I'll hold off on that for now.

Blisshifi, My bad. The prior post led me to believe that the unit uses only 6922.

Thanks for the suggestions. As I started my research, Siemens, Amprex
and Telefunken get a lot of mentions. There are so many variations that
it gets a bit overwhelming. My budget is up to $500 for the pair, but
I'd like to keep it around $400.

The rest of my analog system is Luxman 505 uxii, Technics SL1200G, 
Hana SL, Harbeth SHL Plus.   

@danmar123 Where are you getting your tubes? I have purchased
from Andy at Vintage Tubes, but I don't want to wait for two months.
I will probably try Brent Jesse. Any other vendors?

@ericsch Most of my NOS Tubes come from Andy. I’ve had good luck with Tube depot, & just ordered the Mullards from Tube Store. this morning. Fleebay is a crap shoot.

Yes, I agree on Fleebay. Mostly overpriced and a crap shoot.