NOS NIB 12SN7GT SYLVANIA
Made in USA
Clear Glass
Black Plate, Black Base
New in Original Gvt Box
Tested Advance Digital Tube Tester Amplitrex AT1000
Sr.No.1786003 T1 Ip mAdc=10.2 uMhos=2900
T2 Ip mAdc=8.8 uMhos=2700
Sr.No.1786011 T1 Ip mAdc=9.8 uMhos=2900
T2 Ip mAdc=8.4 uMhos=2700








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