Got the EL51s and the adapters. Very cool tubes. I have been into tubes for 45 years, since I was a young pup and discovered a tube clock radio in my grandparent's basement. I had never heard of side contacts on tubes before. I couldn't figure out what the heck was going on when I took the Teslas out of their box.
Initial impressions...very robust tube. I read where they can handle 750V comfortably. Seems like they could last almost a lifetime in the Lampi. Initial SQ is very nice. I think they'll end up better than the Psvanes (at least in my setup). The DAC looks like quite the beast now. Not as bad as it would look with Fugly Frank (which might be next) but still pretty beasty with the TAK.
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