Here you have a rare chance to get a complete output stage (with power TO3-P transistor) for Sansui amplifier, model AU-519, Right channel.
Thermal grease and mica insulators for power transistors were changed, I tested all transistors by diode test, and they are good. As you can see on the picture, the output transistors are genuine Sanken 2SA1105 / 2SC2580 with letter "N", which means special "Nonmagnetic" version.
On electronic driver board F-2927, I can't see any kind of damage, or any burned element...
Driver board F-2927 could be used for AU 719 too, but with some changes on electronic elements.
Again, I would repeat, that power stage is selling as untested (only transistors were checked by diode test).
Please see the high resolution pictures as they are part of the description.
If you wish, I can do a total restoration of this channel by premium electronic parts (details and prices on request).
Installation should be done by qualified technician only, because it is not simple to do that!