NOS NIB 6SN7GT Sylvania
Manufactured by Sylvania Boxed by Lewis and Kaufman
Made In U.S.A
Date Code : 71-43
Black Base, Clear Glass
New In Original Box
Tested Advance Digital Tube Tester Amplitrex AT1000
Sr.No.233005 : T1=Ia=9.2ma Gm=2500
T2=Ia=9.8ma Gm=2600
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