I am selling here a GENUINE Sansui NMA1216 output power transistor made by Sanken for Sansui (One Piece).
Maybe it is the last chance to get very rare output High-Speed TO3 transistors for yours premium Sansui amplifier.
Installation of those transistors must be done by a qualified technician only!!!!
Because transistor is New Old Stock, it might have some scratches, but it is unused and tested by semiconductor tester.