Pair early-1950s GM 6V6GT tubes - Gray Smoked Glass, Top Round Mica For Sale

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One PAIR,circaearly-1950s,U.S.A.made,GM branded,
type6V6GTvacuum tubes
as As pictured = What you see is what you get! >>>>>>>

Condition:
Used tubes i guess

Tubes featuresmoked glasses, top round-mica-spacerandbottom-mounted \'dimpled-D-Foil\' gettersconstruction.

Tubes appear to havesame internal structure.

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Thoroughly tested onHickok539B*
forshort (pass),gas (pass)andmutual conductance (Gm).

Test Results(Gm)
3600 µMhos
3650 µMhos

minimum:2600

*Hickok539Bis a mutual conductance(Gm)type tube tester. It does check for mutual conductance which is a moreaccurate measure of tube\'s age.

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