Svetlana SV83 Matched Pair
Inexpensive but highly linear alternative to EL84 with Svetlana quality. Note that it's not a drop-in replacement to EL84. We have spec here , and also a note on how to use SV83 in EL84 circuit .
Tube may come with or without Svetlana S logo. Comes in official red and white Svetlana box. 6n15n-EB, the high reliability EB (EV) version.