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RE: C-J CAV-50 Stuff

Posted by tvr2500m (A) on January 5, 2016 at 12:35:12

In Reply to: RE: C-J CAV-50 Stuff posted by Jim McShane on January 5, 2016 at 08:45:30:

Hey, Jim:

Thanks for the recommendations. Always appreciate your insights. Looks like quite a few good current production EL34s/6CA7s to choose from. And the current generation TS 6SN7GTB. I know about the EH 6FQ7. It is quite good. I'd be plenty happy that C-J had continued to use the 6CG7/6FQ7. From my decades of using C-J and ARC gear, I've got just about every variant of these tubes ever made - and there were a lot of them - so I have a huge inventory of them! But now I'm lookin' at 6SN7s.

Absolutely agreed on the RFT 12AU7. Oustanding tube in every way. I've been on a bit of an audio avocation hiatus. Before this, though, searching this Asylum you'll find plenty of posts from me about that tube. I'm not sure I need to be running that 12AU7 at all in the CAV-50. Apparently, it's only there to drive some output functions, and otherwise isn't in the audio path. I think just to see how it works I'll hook up a separate amp and use the CAV-50 as a low gain linestage. I'd prefer not to burn a 12AU7 if I don't have to.

I am quite enjoying the CAV-50 with its OE tube complement. Just can't resist exploring a bit with some tube rolling. Seems clear that the Sovtek 6SN7 isn't a favorite.

OH, how about the Chinese EL34/6CA7/KT77s and 6SN7s? I haven't had anyone mention any Chinese tubes. I LOVE the sonic performance of the Shuguang 6550s (particularly the 6550A-98 and 6550B) and KT88s (GEKT88 and KT88-98). I even really like some of the 12AX7s and 12AU7s.

I'm checkin' out your recommendations now.

Edits: 01/05/16 01/05/16 01/05/16 01/10/16

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