Western Electric 417A 5842

$ 149.95

The Western Electric 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. New old stock in original boxes.

Datasheet

https://static1.squarespace.com/static/5f0983034219c6086e8100ac/t/5f4563545d15ab647878433a/1598382932535/417A.pdf