ULTRA RARE
5687 RCA
Top “D” Getter
1950’s RCA U.S.A
AMPLITREX CERTIFIED MATCHED PAIR
Made in U.S.A
New in Original Box
Tested Advance Digital Tube Tester Amplitrex AT1000
BELOW ARE TEST RESULT TESTED ON FIXED BIAS
Sr.No.3018002. T1=Ia=11.4ma Gm=5080
T2=Ia=13.4ma Gm=5130
Sr.No.3018010. T1=Ia=11.8ma Gm=5080
T2=Ia=11.6ma Gm=4900
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