Sir Whah, I beg to differ. Actually just had a thread about them 6CA7s are also known as E34Ls not EL34s. I am adapting to them now, dont have the openion yet but I had EL34 before and there is difference, here is mine thread where Rid and Wixedmords concurr on the difference between E34Ls and EL34s. Oh-oh ...6CA7 is the American designation for European EL-34. They are the same tube type, just as 12AX7 and ECC83 are the same tube type. There are different sizes and shapes, but they are essentially the same tube. There will obviously be sonic differences between brands, but they are not different in the way that 6CA7's and 6L6GC's are different.
Cheers..........................wahwah
Sir Whah, I beg to differ. Actually just had a thread about them 6CA7s are also known as E34Ls not EL34s. I am adapting to them now, dont have the openion yet but I had EL34 before and there is difference, here is mine thread where Rid and Wixedmords concurr on the difference between E34Ls and EL34s. Oh-oh ...
https://forum.seymourduncan.com/showthread.php?t=119118
take that you whah snob! yeah, pentode this.They might be electrically compatible but most tubes these days sold as 6CA7s (e.g., EH and GT) are beam tetrodes as opposed to the pentode design used in most EL34s.
Gotta put the Victorian in his place.take that you whah snob! yeah, pentode this.
I'm no GT fanboi for a variety of reasons that need not be aired here. Personally, I prefer the EH 6CA7 to the GT.You meddlin' kids! We've got two different subjects here. What Groove Tubes have decided to call a 6CA7 and what the original 6CA7 was are two different things. Originally, the tube was known universally as a 6CA7/EL34, but along come Groove Tubes and their little empire of stolen Russian and Chinese tubes, and a different design that they now call a 6CA7. So it becomes a question of whether we are going to live in the past, like me, or accept the current state of affairs in the present, like you guys.
Interestingly, many tubes that are described as pentodes actually turn out to be beam tetrodes. The ubiquitous Mullard EL34 (6CA7) although manufactured by Mullard as a pentode was also produced by many manufacturers around the world, either as a beam tetrode or as a true pentode.
IME, both the GT and EH 6CA7s have flatter frequency response than most pentode EL34s. They don't have the pronounced upper mid "bark" and perhaps a bit more low-end girth.Generally speaking, how big would the sound difference be?