Montytx & Elevick thanks for advice! I bough mine from Tube Museum (New York), i've seen upscale audio youtube channel and noticed they sell on ebay and on their website. No i have not tried 7189 (i'll keep my eye on it).
I've heard about Amperex Bugle Boys but never tried. They problem is (as you said) each brand sells in many variations and if there is a strong contenders to go nose to nose with my vintage Telefunkens (quad of E84L and pair of ECC801S) i'd like to know exact model to try.
BTW any thoughts about russian reissues of Genalex Gold Lion or i should look for good NOS only? My telefunkens weren't cheap and in this price i can't buy many.
I've heard about Amperex Bugle Boys but never tried. They problem is (as you said) each brand sells in many variations and if there is a strong contenders to go nose to nose with my vintage Telefunkens (quad of E84L and pair of ECC801S) i'd like to know exact model to try.
BTW any thoughts about russian reissues of Genalex Gold Lion or i should look for good NOS only? My telefunkens weren't cheap and in this price i can't buy many.