Just found some N.O.S. Nichicon Metalized Polyester Film .047uf/400VDC, not sure of the year (guessing 1990s). These are not marked for their polarity, selling them in their original state, brand new and un-used. Known for their smooth sound and nice clarity. Perfect for "voicing" certain sections of a vacuum tube amplifier circuit. Made in Japan. .99 cents each.
