71A Sylvania branded Hytron NOS 1947 (22ma)
$ 59.99
71A Sylvania branded Hytron NOS 1947
22ma
Gm=1800
Tested on Amplitrex
Vplate=180V
Vgrid=-38V
Good Ma = 20ma
Good Gm = 1600-1700
(71A=5V @ .25A Filament)
Mu=3
Rplate=1.82Kohms
Rload=3Kohms
Pout=0.4watts
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