6AU6A Westinghouse NOS Vakuumröhre, TV-7D getestet - Kombiversand
5,08 €
Vacuum Tube. sections of a single tube. Within 3% I consider to be 'Balanced'. Gray Plate. Tested at 89. Clean tubes will radiate heat better & operate cooler. 'Matched' refers to comparing the gm test results between the lowest to the highest of the identical sections of a set of tubes.
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