(!!!!!) (Recommended Single) JG-6072 GE triple mica black plates "O" getter NOS 1962 (3.1/3.2ma) (AKG, Tele 251, Peluso, Rode) (similar sound to 5-Star GE) (same Gm)
1 low noise tube) JG-6072 GE triple mica black plates "O" getter NOS 1962 in white box
1 section) 3.1ma Gm=1800
1 section) 3.2ma Gm=1800
Tested on Amplitrex
Vplate=250V
Vgrid=-4V
Good Ma range = 2 - 3ma
Good Gm range = 1500
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