Tung-Sol 7189

In 1959 Tung-Sol developed a premium, up-rated version of the 6BQ5/EL84 for use in industrial and military circuits. This tube was designated 7189. Due to its higher plate voltage rating and increased clean headroom, it became a favorite power tube for use in medium power stereo amplifiers and receivers made by H. H. Scott, Sherwood, Fisher, Lafayette, and many other hi-fi manufacturers.

See matched version: https://shop.ehx.com/item/7189%20TUNGSOL%20PL

Tube Specs: http://shop.ehx.com/catalog/tubes-specs/7189%20Tung-Sol.pdf