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Afbeelding van Western Electric 417A vacuum tubes, NOS.
Afbeelding van Western Electric 417A vacuum tubes, NOS. Afbeelding van Western Electric 417A vacuum tubes, NOS. Afbeelding van Western Electric 417A vacuum tubes, NOS. Afbeelding van Western Electric 417A vacuum tubes, NOS. Afbeelding van Western Electric 417A vacuum tubes, NOS.

Western Electric 417A vacuum tubes, NOS.

NOS Western Electric 417A, in original boxes.
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The 417A is a 9-pin miniature triode with an indirectly heated cathode. It is intended primarily for grounded-grid operation in the input stage of broad band amplifiers.  Of late it's become a favorite for use in the driver sections of high end tube amplifiers. 

The date codes on the boxes are 62-13, and 61-52.

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