Boston   RCA plug, male, metal black, 2 pcs, spring 6,2 mm, gold contacts, black ring

Boston   RCA plug, male, metal black, 2 pcs, spring 6,2 mm, gold contacts, red ring

Boston   RCA plug, male, metal gold lacker, spring 6,2 mm, gold contacts, 2 pcs black ring

Boston   RCA plug, male, metal gold lacker, spring 6,2 mm, gold contacts, 2 pcs red ring

Boston   RCA plug, female, metal nickel, spring 6,2 mm, 2 pcs red ring

Boston   RCA plug, female, metal black, spring 6,2 mm, gold contacts, 2 pcs black ring

Boston   RCA plug, female, metal black, spring 6,2 mm, gold contacts, 2 pcs red ring