(!!!!!) (Best Value Pair) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new (2.9/3.1ma and 3.1/2.9ma) 1-2% matched (Audio Note, Kondo, mics)
1 low noise pair) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 test like new from bulk pack in white boxes - faded printing
1 tube) 2.9/3.1ma Gm=1700/1700
1 tube) 3.1/2.9ma Gm=1700/1800
Tested on Amplitrex
Vplate=250V
Vgrid=-4V
Good Ma range = 2 - 3ma
Good Gm range = 1500-1700
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 (Best Value Pair) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new (2.9/3.1ma and 3.1/2.9ma) 1-2% matched (Audio Note, Kondo, mics)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_45160fc7-b3ea-4413-a4ac-bc6471b8cc5c.jpg?v=1705438323){kind=link}
 (Best Value Pair) GL-6072 GE 5 star triple mica black plates "O" getter halo 1962 like new (2.9/3.1ma and 3.1/2.9ma) 1-2% matched (Audio Note, Kondo, mics) "Pin It")