anitoli
Well-Known Member
Tried a quad of these in my JCM800 Super Bass to replace the way out of spec 6CA7's and first impression is good. Amp sounds nice. Cranked it a few times and rechecked bias and they are holding their place so good to go.
https://www.vivatubes.com/new-matched-quad-4-psvane-uk-el34-black-plate-vacuum-tubes/
https://www.vivatubes.com/new-matched-quad-4-psvane-uk-el34-black-plate-vacuum-tubes/