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DeHavilland UltraVerve tube rolling

Just bought a used deHavilland UltraVerve. Would like to hear from others as to which 6SN7, 6AH4, and 5UG tubes they have tried, and your favorites. Looking for a clear clean sound. Unit currently seems a little bass heavy. Came with a TungSol 5UG (? lettering gone), CBS and RCA 6AH4 (one of each), and a Sylvania chrome dome 6SN7. I'm thinking about a CBS/Hytron 6SN7, RCA 5UG coke bottle, and maybe Sylvania 6AH4's. Also, does anyone know if a "coke bottle" shaped 5UG will fit into the opening? It looks like it may or may not.
tube540

Showing 1 response by bigkidz

bigkidz
3,427 posts
 
Cannot remember what 6AH4 or 5UG tubes my buddy uses in his but we went through a bunch of 6SN7 and the Tung-Sol round plate was the best of the bunch. Here is some of them we recently tried:

Ken-Rad black glass
Ken-Rad clear glass
CBS
RCA gray glass
RCA 5692 red base
Shuguang Black Treasure
Electro Harmonix Gold Pin
Sylvania green lettering
Raytheon
Macroni

Hope this helps.
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