https://www.edretrotech.com/2020/07/keeping-technics-sa-gx910-or-710.html?showComment=1774494416389
Ed Retro Tech - Where new and old tech coexist: Keeping the Technics SA-GX910 (or SA-GX710) running...
Technics SA-GX910 (or SA-GX710) - Fan mod with speed control