UY-227 RCA Radiotron Balloon used/good 1930 era
3.5ma
Gm=700
Tested on Amplitrex
Vplate=250V
Vgriod=-21V
NOS Ma = 4.6-5ma
NOS Gm=900
$4.50 $14.99
UY-227 RCA Radiotron Balloon used/good 1930 era
3.5ma
Gm=700
Tested on Amplitrex
Vplate=250V
Vgriod=-21V
NOS Ma = 4.6-5ma
NOS Gm=900
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