56 no name NOS 1950”s
5.7ma
Gm=1500
Tested on Amplitrex:
Vplate=250V
Vgrid=-13.5V
Iplate good range = 4.5-5.5ma
Gm=1400
(Vfilament = 2.5 volts)$4.50 $14.99
56 no name NOS 1950”s
5.7ma
Gm=1500
Tested on Amplitrex:
Vplate=250V
Vgrid=-13.5V
Iplate good range = 4.5-5.5ma
Gm=1400
(Vfilament = 2.5 volts)
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