Hi to all, I am currently in the process of restoring my old audio gear starting with this graphic equalizer. This unit still functions but the potentiometers are already very noisy and does not slide smoothly. I would like to replace them with new ones but the manufacturer is not printed or embossed on the body of the potentiometers. They may be Alps, but I really cannot tell without the manufacturer's name on it. Does anyone, by any chance, know the brand of this Japanese-made potentiometer? I have attached three photos and one of the views is of the logo that is embossed on the end of it (circled in red), while the word Japan is on the other end.
