Hello,
I rewired my driver board to use the 6GH8A tubes. It was fine, but one became microphonic. I ordered 2, and one of the new ones was microphonic. I've read that they are just kind of crappy tubes. Is there a way to rewire for a more commonly used tube, like a 12au7, to avoid the mega expensive 7199's? I know I can just upgrade the board, but it sounds fantastic as is. Just looking for a DIY solution.
Thanks!
Geoff
I rewired my driver board to use the 6GH8A tubes. It was fine, but one became microphonic. I ordered 2, and one of the new ones was microphonic. I've read that they are just kind of crappy tubes. Is there a way to rewire for a more commonly used tube, like a 12au7, to avoid the mega expensive 7199's? I know I can just upgrade the board, but it sounds fantastic as is. Just looking for a DIY solution.
Thanks!
Geoff