Here you have a chance to buy F-2842 Tone Control Board & F-2843 Turn-Over Sansui boards for amplifier AU919. They are  complete and undamaged but they are untested.

This is Type "A" board - Slotted Shaft potentiometers

I have here the same boards and with the same type potentiometers (Type "A" board - Slotted Shaft potentiometers) but restored, please look here:

https://sansui-vintage.com/product/f-2842-f-2843-sansui-boards-for-amplifier-au919-used-unteste/