6SJ7 - 5693 - 6J7 - 1620
Shop our selection of 6SJ7 and 6J7 vacuum tubes. Please note, the 6SJ7 and 6J7 are not directly interchangeable and will require an adapter to use in place of each-other. The 6SJ7 is basically a 6J7 with a different pinout.
The 5693 is a high end version of the 6SJ7 where as the 1620 is a high end version of the 6J7.