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One tube, circa 1966, Germany made by Siemens & Halske for RCA,
type 6ES8 (ECC189) vacuum tube

as pictured.

Condition:
New Old Stock / New In Box

Silk-screening:
Please refer to photo(s)

Painted designation (white color ink):
6ES8

Acid etched factory/date codes:
IX? / =/=6B

Acid etched date codes:
6B

Painted date codes (red ink):
BU

Tube features grey plates, silver shield between anodes  and a top-mounted 'halo-ring' getter construction.

*

Hickok TV-7B/U* tested

@  119/117

min. : 50/50

(Triode#1 / Triode #2)

*Hickok TV-7B/U is a mutual conductance type tube tester. It does check for mutual conductance which is a more accurate measure of tube's age.

Satisfaction Guaranteed!

*FantasticTubes !!!