Tubes Asylum

I'm REALLY happy with the KT-77 in my rebuilt Dynaco ST-70; they have

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In Reply to: Help me pick a set of output tubes for my Dynaco ST-70. posted by Paully on April 14, 2007 at 10:30:19:

a "lighter", more extended top end and a great balance, substance and clarity from there all the way down. I've used the Svet (winged C) EL34 and JJ�s E34L as well (and other current production EL34 as well as vintage Mullard XF2). Haven't bothered trying any current production 6CA7 as the KT-77 are so superb.

"I always play jazz records backwards, they sound better that way"
-Thomas Edison

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Another Satisfied KT77 user, but be careful - CometCKO 18:04:56 04/14/07 (0)
My Dynaco has all new output tube sockets, so the fact that many (most?) of teh KT77's have undersized tube pins isn't a problem for me. It might be for you. And if you check the archives, there are several threads about quality problems with this tube. Suggest you buy it from a tube seller who tests & guarantees it. I know Jim McShane no longer carries it because his experience with the tube quality was so bad.
All that said, I really like the sound of the KT77's in my Dynaco ST-70. I prefer it to the Mullards I've been using for the past 30 years. I think it's more linear, without the bloat. You do lose a little of the midrange magic, but I think it's far better than the other modern production EL34's I've tried (EH, Svet, SED).
Yea, I want to try those too - Paully 11:26:45 04/14/07 (4)
Maybe I will order a quad of the EH and the KT-77 and try them both. I think doing the Ei might be a mistake. What if you like them? They are going to be very hard to come by in the future I would imagine. Might as well go NOS.
- Re: Yea, I want to try those too - musetap 13:08:32 04/14/07 (3)
  Kind of a sketchy memory hear with the Ei Fat Bottle I tried a few years ago...but I distincly remember being very unhappy with them.
  I still have them and maybe should give 'em another shot, but the unhappy experience contrasted with the happy experience with all the other EL34 I've tried (and especially the KT-77!) make that an unlikely event.
  Have fun no matter which route you take!
  
  "I always play jazz records backwards, they sound better that way"
  -Thomas Edison
  - Re: Yea, I want to try those too - Paully 14:22:14 04/14/07 (2)
    Well I have a quad on the way of the EH 6CAT. I hope I like them better than you did! Even if they are great I still want to try out the KT-77 and see what all the hype is about.
    - Re: Yea, I want to try those too - Jim McShane 15:27:45 04/14/07 (1)
      The EH and the Ei 6CA7s are much different! You can definitely like one but not the other.
      - Re: Yea, I want to try those too - Paully 15:45:53 04/14/07 (0)
        
        In Reply to: Re: Yea, I want to try those too posted by Jim McShane on April 14, 2007 at 15:27:45:
        
        Well I am all for finding out which. Tube rolling is half the fun but I think I am going to pass on the Ei. I actually don't think I want to know if I like them they are getting so hard to come by. EL34 Teslas (old stock) were magnificent but I can't afford NOS quads of those. So I will try the EH 6CA7 and the Kt-77 and see (throwing in the JJ E34L which I already have) which ones I like best.

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