Lightly used, tests like new.

NOS in original white military boxes. Third mica on top of getter.

Limited supply. Bulk packaged and shipped in white boxes.

NOS in original boxes. Some marked Philips, others Sylvania (earlier version). Same tube, Philips bought the Sylvania tube production and continued with the same designs.

Number one choice for guitar amps where lower gain and smoother tone is required. These remove harshness in some guitar amps.ﾠﾠ

Lightly used. These test as new. Some with National labels, some with labels completely missing or worn.

Original box.