6BL8
The 6BL8 (European: ECF80) (Russian: 6Ф1П) (P/N 154-0278-00) is a triode-pentode combo vacuum tube with a B9A (Noval) miniature 9-pin base.
The 6BL8 (European: ECF80) (Russian: 6Ф1П) (P/N 154-0278-00) is a triode-pentode combo vacuum tube with a B9A (Noval) miniature 9-pin base.