(!!!!) (Best Overall Single) 6072 GE "5-Star" NOS black plates triple mica "O" getter halo 1960 (3.5/3.4ma) (mic grade) (Highest mA and Gm)
1 low noise single tube) 6072 GE "5-Star" NOS black plates triple mica "O" getter halo
(60-13=1959) very good printing 1-2% section balance
3.5ma Gm=1900
3.4ma Gm=1900
Tested on Amplitrex
Vplate=250V
Vgrid=-4V
Good Ma range = 2 - 3ma
Good Gm range = 1500
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 (Best Overall Single) 6072 GE "5-Star" NOS black plates triple mica "O" getter halo 1960 (3.5/3.4ma) (mic grade) (Highest mA and Gm)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/3_1_ded2a51f-e857-4e19-b7bf-07d011629522.jpg?v=1767627846){kind=link}
 (Best Overall Single) 6072 GE "5-Star" NOS black plates triple mica "O" getter halo 1960 (3.5/3.4ma) (mic grade) (Highest mA and Gm) "Pin It")