6BQ5 / EL84 / 7189 tubes

The 1964 Mullard EL84 / 6BQ5 tubes in this precisely matched pair have gray plates and large halo getters (rX3 series). The glass has the browning characteristic of early Mullard EL84 tubes. Both tubes test as new and are matched for current draw and Gm.

The 1959 Philips EL84 / 6BQ5 tubes in this precisely matched pair have gray plates and D getters (rX3 series). The white label has the Fisher logo (partial) and the Sittard, France factory code is etched in the glass. Both tubes test as new.

The 1970s Toshiba 6BQ5 / EL84 tubes in this precisely matched pair were made in Japan. They have gray plates with copper grid posts and halo getters. Both tubes test as new. Click "more info" for test results.