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One matched pair, circa 1960+/-, U.S.A. made by Sylvania,
type 6CG7 vacuum tubes
as pictured.
Please note: one tube was labeled for RCA.
Condition:
Extremely low hours used tubes
Silk-screening:
Please refer to picture(s)
Aid ectched designations (Sylvania's emblem):
6CG7
6CG7
Factory/Date codes:
312 0-52
n/a
Tubes feature gray ridge plates, extra silver shields between anodes and top-mounted large-halo-ring getters construction.
Tubes appear identical in construction.
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Hickok TV-7B/U tested
@ 98/106 104/103
min. : 50/50
(Triode#1 / Triode #2)
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