1 slightly microphonic low noise tube) 6072 GE branded RCA triple mica black plates "O" getter halo 1960 used/good in white box

1 section) 2.0ma Gm=1300

1 section) 2.0ma Gm=1300

Tested on Amplitrex 

Vplate=250V

Vgrid=-4V

used mA range = 1.8 - 2.5mA

used Gm range = 1300-1600

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