Available for purchase is a premium vintage Tung-Sol 6V6GT/G power tube. This unit features the classic Black Coated Glass and Black Base construction, representing the gold standard of American vacuum tube engineering from the mid-20th century.

Tested on the Amplitrex AT1000, the results below follow the Percentage Method relative to factory design-center specifications (Ip = 45.0 mA / Gm = 4100 µMhos). This tube displays healthy emission and transconductance levels, ensuring smooth performance in high-end audio circuits.