Nice set up! What did you find with the 596 (were you given the adapter too)? I find that one of the very best, especially for someone who likes a bit of warmth that works well with female voices. For some other ideas in main tubes, including the Tesla EL51 go back to page 47, if you haven’t, and take a look at Fabio’s follow up findings posted by Golum (can’t find the initial one). Before the Tesla, I used GEC KT 66 from the early ‘70s and they did very well, but the Tesla, if you can find a pair and adapters, is in another league.
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