NOS NIB 5687WB Sylvania
Made in U.S.A
Black Plate , Clear Glass
Halo Ring Getter
New in original box
The tube tested is 100% strong
Tested Advance Digital Tube Tester Amplitrex AT1000
Sr.No.3159001. T1=Ia=11.6ma Gm=4960
T2=Ia=11.8ma Gm=4700
NOS Gm Specification | 5400 | 5400 |
Tube 1 Test Results | 4960 (91.85%) | 4700 (87.04%) |
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