This is part 116777 and is sized 4″ x 3.5″ x 3.25″. On the chassis were a pair of 7027 with others 12AX7 and 12AU7. great for DIY project.

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This is part 116777 and is sized 4″ x 3.5″ x 3.25″. On the chassis were a pair of 7027 with others 12AX7 and 12AU7. great for DIY project.