The best EL34 that used to be available!
I have been using these tubes since back in the days they were called Svetlana. The theft of that name, and subsequent foisting off of lesser tubes under that banner is a sales tactic that will assure I will never buy a single tube from that importer. I was away from tube amps a while, gigging my Fractal gear, and came back to find my beloved tubes are now an endangered species. I have several quads put back, and it's sad that such an awesome product in the EL34/6L6GC world has bitten the dust. For reference, I use these in several guitar amplifiers: Mesa Road King II, Mesa Nomad, and Marshall Haze 40. In every single case I have ever used them, the result has been a bolder sound, less brittle and more robust, regardless of the tubes replaced (JJ, GT, Marshall, EH). This has been the only tube manufacturer I have ever used as an automatic replacement for "whatever" tube is in the power amp section. So sad they are no longer producing. I hope they change their mind, as the St Petersberg factory isn't closed, as far as I can tell, just isn't making these smaller tubes any longer.