EL34 vs 6CA7 vs KT77

I replaced my VTL st-85 EL-34's with Shanguang treasure 6CA7's
They are pricy but with much more resolution, dynamics and frequency extension than the EL34's
Alan

When I had an EL34 amp the tubes I liked best were vintage Tesla (not JJ) and the Siemens RFT. Of course, I didn't try every tube out there and both those kinds would be pricey and perhaps hard to track down.

For new production, I had the same Winged "C" tubes as you and liked them. I was extremely happy with a quad of reissue Genelex KT-77's from Jim McShane. If I got another EL34 amp I would buy the Genelex again and not spend the money and effort tracking down NOS.

I have some of those Siemens. They are sitting on the shelf while I use new production EH 6ca7 daily, because these are cheaper and don't do anything I find offensive. I don't really find much to get excited about the NOS Siemens, but amps are different. I haven't tried the Genelex or shanguang.