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(1) Tested Strong Zenith 6GN8/6EB8 Tube with Box Code 74-43 6GN8 Tube 6EB8 Tube

(1) Tested Strong Zenith 6GN8/6EB8 Tube with Box Code 74-43 6GN8 Tube 6EB8 Tube

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(1) Tested Very Strong Zenith 6GN8/6EB8 Tube with Original Box.
Date Code 74-43.
The 188 EIA code indicates that this tube was made by GE for Zenith.

This tube tests as NOS.

Tested on a calibrated Hickok TV-10 military tube tester and exhibiting no shorts or leaks with the following results:

Gm Test = 8250-3500 micromhos
Minimum pass/good = 4500-1750
NOS rating = 6750-2625

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