I've owned several quads of the RFT/Siemens EL34s and they're among my favorites of that tube type. I still have a set of them even though I don't now have an amp that can use them. I'm keeping them, just in case.
The only other EL34s that I've had that could compete with them were the original brown base Tesla (not JJ).
A good alternative are the new Gold Lion KT77s but if you can find the RFT/Siemens from a reputable seller with good test information I'd highly recommend them.
The only other EL34s that I've had that could compete with them were the original brown base Tesla (not JJ).
A good alternative are the new Gold Lion KT77s but if you can find the RFT/Siemens from a reputable seller with good test information I'd highly recommend them.